From 19736747329bd217779b2aff70b6e7fb6e272fe1 Mon Sep 17 00:00:00 2001
From: Jeffrey Walton <noloader@gmail.com>
Date: Tue, 21 May 2019 05:37:40 -0400
Subject: [PATCH] Add sanity check to setenv-*.sh scripts Prompt user to source
 the script when required. Whitespace check-in

---
 TestScripts/setenv-android-gcc.sh | 355 +++++++++++++++---------------
 TestScripts/setenv-android-old.sh | 339 ++++++++++++++--------------
 TestScripts/setenv-embedded.sh    |  33 +--
 TestScripts/setenv-ios.sh         |  57 ++---
 setenv-android-gcc.sh             |  51 +++--
 setenv-embedded.sh                |  33 +--
 setenv-ios.sh                     |  57 ++---
 7 files changed, 480 insertions(+), 445 deletions(-)

diff --git a/TestScripts/setenv-android-gcc.sh b/TestScripts/setenv-android-gcc.sh
index 69fb2f72..0922d2c7 100755
--- a/TestScripts/setenv-android-gcc.sh
+++ b/TestScripts/setenv-android-gcc.sh
@@ -18,6 +18,11 @@
 
 # set -eu
 
+# Sanity check
+if [ "$0" != "${BASH_SOURCE[0]}" ]; then
+    echo "Please source this setenv script"
+fi
+
 unset IS_CROSS_COMPILE
 
 unset IS_IOS
@@ -38,8 +43,8 @@ unset CPP CC CXX LD AS AR RANLIB STRIP
 
 # Similar to a "make clean"
 if [ x"${1-}" = "xunset" ]; then
-	echo "Unsetting script variables. PATH may remain tainted"
-	[ "$0" = "$BASH_SOURCE" ] && exit 0 || return 0
+    echo "Unsetting script variables. PATH may remain tainted"
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 0 || return 0
 fi
 
 # Set AOSP_TOOLCHAIN_SUFFIX to your preference of tools and STL library.
@@ -47,7 +52,7 @@ fi
 # AOSP_TOOLCHAIN_SUFFIX=4.8
 # AOSP_TOOLCHAIN_SUFFIX=4.9
 if [ -z "${AOSP_TOOLCHAIN_SUFFIX-}" ]; then
-	AOSP_TOOLCHAIN_SUFFIX=4.9
+    AOSP_TOOLCHAIN_SUFFIX=4.9
 fi
 
 # Set AOSP_API_VERSION to the API you want to use. 'armeabi' and 'armeabi-v7a' need
@@ -63,15 +68,15 @@ fi
 # AOSP_API_VERSION="21"    # Android 5.0 and above
 # AOSP_API_VERSION="23"    # Android 6.0 and above
 if [ -z "${AOSP_API_VERSION-}" ]; then
-	AOSP_API_VERSION="21"
+    AOSP_API_VERSION="21"
 fi
 
 if [ -z "${AOSP_API-}" ]; then
-	AOSP_API="android-${AOSP_API_VERSION}"
+    AOSP_API="android-${AOSP_API_VERSION}"
 else
-	echo "WARNING: Using AOSP_API has been deprecated. Please use AOSP_API_VERSION instead."
-	echo "If you set for example AOSP_API=android-23 then now instead set AOSP_API_VERSION=23"
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "WARNING: Using AOSP_API has been deprecated. Please use AOSP_API_VERSION instead."
+    echo "If you set for example AOSP_API=android-23 then now instead set AOSP_API_VERSION=23"
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 #####################################################################
@@ -82,104 +87,104 @@ fi
 #   like ANDROID_NDK_ROOT=/opt/android-ndk-r10e or ANDROID_NDK_ROOT=/usr/local/android-ndk-r10e.
 
 if [ -z "${ANDROID_NDK_ROOT-}" ]; then
-	ANDROID_NDK_ROOT=$(find /opt -maxdepth 1 -type d -name android-ndk* 2>/dev/null | tail -1)
+    ANDROID_NDK_ROOT=$(find /opt -maxdepth 1 -type d -name android-ndk* 2>/dev/null | tail -1)
 
-	if [ -z "$ANDROID_NDK_ROOT" ]; then
-		ANDROID_NDK_ROOT=$(find /usr/local -maxdepth 1 -type d -name android-ndk* 2>/dev/null | tail -1)
-	fi
-	if [ -z "$ANDROID_NDK_ROOT" ]; then
-		ANDROID_NDK_ROOT=$(find $HOME -maxdepth 1 -type d -name android-ndk* 2>/dev/null | tail -1)
-	fi
-	if [ -d "$HOME/Library/Android/sdk/ndk-bundle" ]; then
-		ANDROID_NDK_ROOT="$HOME/Library/Android/sdk/ndk-bundle"
-	fi
+    if [ -z "$ANDROID_NDK_ROOT" ]; then
+        ANDROID_NDK_ROOT=$(find /usr/local -maxdepth 1 -type d -name android-ndk* 2>/dev/null | tail -1)
+    fi
+    if [ -z "$ANDROID_NDK_ROOT" ]; then
+        ANDROID_NDK_ROOT=$(find $HOME -maxdepth 1 -type d -name android-ndk* 2>/dev/null | tail -1)
+    fi
+    if [ -d "$HOME/Library/Android/sdk/ndk-bundle" ]; then
+        ANDROID_NDK_ROOT="$HOME/Library/Android/sdk/ndk-bundle"
+    fi
 fi
 
 # Error checking
 if [ ! -d "$ANDROID_NDK_ROOT/toolchains" ]; then
-	echo "ERROR: ANDROID_NDK_ROOT is not a valid path. Please set it."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: ANDROID_NDK_ROOT is not a valid path. Please set it."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 #####################################################################
 
 if [ "$#" -lt 1 ]; then
-	THE_ARCH=armv7a-neon
+    THE_ARCH=armv7a-neon
 else
-	THE_ARCH=$(tr [A-Z] [a-z] <<< "$1")
+    THE_ARCH=$(tr [A-Z] [a-z] <<< "$1")
 fi
 
 # https://developer.android.com/ndk/guides/abis.html
 case "$THE_ARCH" in
   arm|armv5|armv6|armv7|armeabi)
-	TOOLCHAIN_ARCH="arm-linux-androideabi"
-	TOOLCHAIN_NAME="arm-linux-androideabi"
-	AOSP_ABI="armeabi"
-	AOSP_ARCH="arch-arm"
-	AOSP_FLAGS="-march=armv5te -mtune=xscale -mthumb -msoft-float -DCRYPTOPP_DISABLE_ASM -funwind-tables -fexceptions -frtti"
-	;;
+    TOOLCHAIN_ARCH="arm-linux-androideabi"
+    TOOLCHAIN_NAME="arm-linux-androideabi"
+    AOSP_ABI="armeabi"
+    AOSP_ARCH="arch-arm"
+    AOSP_FLAGS="-march=armv5te -mtune=xscale -mthumb -msoft-float -DCRYPTOPP_DISABLE_ASM -funwind-tables -fexceptions -frtti"
+    ;;
   armv7a|armv7-a|armeabi-v7a)
-	TOOLCHAIN_ARCH="arm-linux-androideabi"
-	TOOLCHAIN_NAME="arm-linux-androideabi"
-	AOSP_ABI="armeabi-v7a"
-	AOSP_ARCH="arch-arm"
-	AOSP_FLAGS="-march=armv7-a -mthumb -mfpu=vfpv3-d16 -mfloat-abi=softfp -DCRYPTOPP_DISABLE_ASM -Wl,--fix-cortex-a8 -funwind-tables -fexceptions -frtti"
-	;;
+    TOOLCHAIN_ARCH="arm-linux-androideabi"
+    TOOLCHAIN_NAME="arm-linux-androideabi"
+    AOSP_ABI="armeabi-v7a"
+    AOSP_ARCH="arch-arm"
+    AOSP_FLAGS="-march=armv7-a -mthumb -mfpu=vfpv3-d16 -mfloat-abi=softfp -DCRYPTOPP_DISABLE_ASM -Wl,--fix-cortex-a8 -funwind-tables -fexceptions -frtti"
+    ;;
   hard|armv7a-hard|armeabi-v7a-hard)
-	echo hard, armv7a-hard and armeabi-v7a-hard are not supported, as android uses softfloats
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
-	#TOOLCHAIN_ARCH="arm-linux-androideabi"
-	#TOOLCHAIN_NAME="arm-linux-androideabi"
-	#AOSP_ABI="armeabi-v7a"
-	#AOSP_ARCH="arch-arm"
-	#AOSP_FLAGS="-mhard-float -D_NDK_MATH_NO_SOFTFP=1 -march=armv7-a -mfpu=vfpv3-d16 -DCRYPTOPP_DISABLE_ASM -mfloat-abi=softfp -Wl,--fix-cortex-a8 -funwind-tables -fexceptions -frtti -Wl,--no-warn-mismatch -Wl,-lm_hard"
-	;;
+    echo hard, armv7a-hard and armeabi-v7a-hard are not supported, as android uses softfloats
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
+    #TOOLCHAIN_ARCH="arm-linux-androideabi"
+    #TOOLCHAIN_NAME="arm-linux-androideabi"
+    #AOSP_ABI="armeabi-v7a"
+    #AOSP_ARCH="arch-arm"
+    #AOSP_FLAGS="-mhard-float -D_NDK_MATH_NO_SOFTFP=1 -march=armv7-a -mfpu=vfpv3-d16 -DCRYPTOPP_DISABLE_ASM -mfloat-abi=softfp -Wl,--fix-cortex-a8 -funwind-tables -fexceptions -frtti -Wl,--no-warn-mismatch -Wl,-lm_hard"
+    ;;
   neon|armv7a-neon)
-	TOOLCHAIN_ARCH="arm-linux-androideabi"
-	TOOLCHAIN_NAME="arm-linux-androideabi"
-	AOSP_ABI="armeabi-v7a"
-	AOSP_ARCH="arch-arm"
-	AOSP_FLAGS="-march=armv7-a -mfpu=neon -mfloat-abi=softfp -Wl,--fix-cortex-a8 -funwind-tables -fexceptions -frtti"
-	;;
+    TOOLCHAIN_ARCH="arm-linux-androideabi"
+    TOOLCHAIN_NAME="arm-linux-androideabi"
+    AOSP_ABI="armeabi-v7a"
+    AOSP_ARCH="arch-arm"
+    AOSP_FLAGS="-march=armv7-a -mfpu=neon -mfloat-abi=softfp -Wl,--fix-cortex-a8 -funwind-tables -fexceptions -frtti"
+    ;;
   armv8|armv8a|aarch64|arm64|arm64-v8a)
-	TOOLCHAIN_ARCH="aarch64-linux-android"
-	TOOLCHAIN_NAME="aarch64-linux-android"
-	AOSP_ABI="arm64-v8a"
-	AOSP_ARCH="arch-arm64"
-	AOSP_FLAGS="-funwind-tables -fexceptions -frtti"
-	;;
+    TOOLCHAIN_ARCH="aarch64-linux-android"
+    TOOLCHAIN_NAME="aarch64-linux-android"
+    AOSP_ABI="arm64-v8a"
+    AOSP_ARCH="arch-arm64"
+    AOSP_FLAGS="-funwind-tables -fexceptions -frtti"
+    ;;
   mips|mipsel)
-	TOOLCHAIN_ARCH="mipsel-linux-android"
-	TOOLCHAIN_NAME="mipsel-linux-android"
-	AOSP_ABI="mips"
-	AOSP_ARCH="arch-mips"
-	AOSP_FLAGS="-funwind-tables -fexceptions -frtti"
-	;;
+    TOOLCHAIN_ARCH="mipsel-linux-android"
+    TOOLCHAIN_NAME="mipsel-linux-android"
+    AOSP_ABI="mips"
+    AOSP_ARCH="arch-mips"
+    AOSP_FLAGS="-funwind-tables -fexceptions -frtti"
+    ;;
   mips64|mipsel64|mips64el)
-	TOOLCHAIN_ARCH="mips64el-linux-android"
-	TOOLCHAIN_NAME="mips64el-linux-android"
-	AOSP_ABI="mips64"
-	AOSP_ARCH="arch-mips64"
-	AOSP_FLAGS="-funwind-tables -fexceptions -frtti"
-	;;
+    TOOLCHAIN_ARCH="mips64el-linux-android"
+    TOOLCHAIN_NAME="mips64el-linux-android"
+    AOSP_ABI="mips64"
+    AOSP_ARCH="arch-mips64"
+    AOSP_FLAGS="-funwind-tables -fexceptions -frtti"
+    ;;
   x86)
-	TOOLCHAIN_ARCH="x86"
-	TOOLCHAIN_NAME="i686-linux-android"
-	AOSP_ABI="x86"
-	AOSP_ARCH="arch-x86"
-	AOSP_FLAGS="-mtune=intel -mssse3 -mfpmath=sse -funwind-tables -fexceptions -frtti"
-	;;
+    TOOLCHAIN_ARCH="x86"
+    TOOLCHAIN_NAME="i686-linux-android"
+    AOSP_ABI="x86"
+    AOSP_ARCH="arch-x86"
+    AOSP_FLAGS="-mtune=intel -mssse3 -mfpmath=sse -funwind-tables -fexceptions -frtti"
+    ;;
   x86_64|x64)
-	TOOLCHAIN_ARCH="x86_64"
-	TOOLCHAIN_NAME="x86_64-linux-android"
-	AOSP_ABI="x86_64"
-	AOSP_ARCH="arch-x86_64"
-	AOSP_FLAGS="-march=x86-64 -msse4.2 -mpopcnt -mtune=intel -funwind-tables -fexceptions -frtti"
-	;;
+    TOOLCHAIN_ARCH="x86_64"
+    TOOLCHAIN_NAME="x86_64-linux-android"
+    AOSP_ABI="x86_64"
+    AOSP_ARCH="arch-x86_64"
+    AOSP_FLAGS="-march=x86-64 -msse4.2 -mpopcnt -mtune=intel -funwind-tables -fexceptions -frtti"
+    ;;
   *)
-	echo "ERROR: Unknown architecture $1"
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
-	;;
+    echo "ERROR: Unknown architecture $1"
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
+    ;;
 esac
 
 #####################################################################
@@ -209,79 +214,79 @@ export AOSP_SYS_ARCH_INC="$ANDROID_NDK_ROOT/sysroot/usr/include/$TOOLCHAIN_NAME"
 AOSP_TOOLCHAIN_PATH=""
 for host in "linux-x86_64" "darwin-x86_64" "linux-x86" "darwin-x86"
 do
-	if [ -d "$ANDROID_NDK_ROOT/toolchains/$TOOLCHAIN_ARCH-$AOSP_TOOLCHAIN_SUFFIX/prebuilt/$host/bin" ]; then
-		AOSP_TOOLCHAIN_PATH="$ANDROID_NDK_ROOT/toolchains/$TOOLCHAIN_ARCH-$AOSP_TOOLCHAIN_SUFFIX/prebuilt/$host/bin"
-		break
-	fi
+    if [ -d "$ANDROID_NDK_ROOT/toolchains/$TOOLCHAIN_ARCH-$AOSP_TOOLCHAIN_SUFFIX/prebuilt/$host/bin" ]; then
+        AOSP_TOOLCHAIN_PATH="$ANDROID_NDK_ROOT/toolchains/$TOOLCHAIN_ARCH-$AOSP_TOOLCHAIN_SUFFIX/prebuilt/$host/bin"
+        break
+    fi
 done
 
 # Error checking
 if [ -z "$AOSP_TOOLCHAIN_PATH" ] || [ ! -d "$AOSP_TOOLCHAIN_PATH" ]; then
-	echo "ERROR: AOSP_TOOLCHAIN_PATH is not valid. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: AOSP_TOOLCHAIN_PATH is not valid. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$CPP" ]; then
-	echo "ERROR: Failed to find Android cpp. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Failed to find Android cpp. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$CC" ]; then
-	echo "ERROR: Failed to find Android gcc. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Failed to find Android gcc. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$CXX" ]; then
-	echo "ERROR: Failed to find Android g++. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Failed to find Android g++. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$RANLIB" ]; then
-	echo "ERROR: Failed to find Android ranlib. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Failed to find Android ranlib. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$AR" ]; then
-	echo "ERROR: Failed to find Android ar. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Failed to find Android ar. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$AS" ]; then
-	echo "ERROR: Failed to find Android as. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Failed to find Android as. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$LD" ]; then
-	echo "ERROR: Failed to find Android ld. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Failed to find Android ld. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Only modify/export PATH if AOSP_TOOLCHAIN_PATH good
 if [ -d "$AOSP_TOOLCHAIN_PATH" ]; then
 
-	# And only modify PATH if AOSP_TOOLCHAIN_PATH is not present
-	LEN=${#AOSP_TOOLCHAIN_PATH}
-	SUBSTR=${PATH:0:$LEN}
-	if [ "$SUBSTR" != "$AOSP_TOOLCHAIN_PATH" ]; then
-		export PATH="$AOSP_TOOLCHAIN_PATH":"$PATH"
-	fi
+    # And only modify PATH if AOSP_TOOLCHAIN_PATH is not present
+    LEN=${#AOSP_TOOLCHAIN_PATH}
+    SUBSTR=${PATH:0:$LEN}
+    if [ "$SUBSTR" != "$AOSP_TOOLCHAIN_PATH" ]; then
+        export PATH="$AOSP_TOOLCHAIN_PATH":"$PATH"
+    fi
 fi
 
 #####################################################################
 
 # Error checking
 if [ ! -d "$ANDROID_NDK_ROOT/platforms/$AOSP_API" ]; then
-	echo "ERROR: AOSP_API is not valid. Does the NDK support the API? Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: AOSP_API is not valid. Does the NDK support the API? Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 elif [ ! -d "$ANDROID_NDK_ROOT/platforms/$AOSP_API/$AOSP_ARCH" ]; then
-	echo "ERROR: AOSP_ARCH is not valid. Does the NDK support the architecture? Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: AOSP_ARCH is not valid. Does the NDK support the architecture? Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Android SYSROOT. It will be used on the command line with --sysroot
@@ -294,76 +299,76 @@ export AOSP_LD_SYSROOT="$ANDROID_NDK_ROOT/platforms/$AOSP_API/$AOSP_ARCH"
 # Android STL. We support GNU, LLVM and STLport out of the box.
 
 if [ "$#" -lt 2 ]; then
-	THE_STL=gnu-shared
+    THE_STL=gnu-shared
 else
-	THE_STL=$(tr [A-Z] [a-z] <<< "$2")
+    THE_STL=$(tr [A-Z] [a-z] <<< "$2")
 fi
 
 # LLVM include directory may be different depending on NDK version. Default to new location (latest NDK checked: r16beta1).
 LLVM_INCLUDE_DIR="$ANDROID_NDK_ROOT/sources/cxx-stl/llvm-libc++/include"
 if [ ! -d "$LLVM_INCLUDE_DIR" ]; then
-	LLVM_INCLUDE_DIR="$ANDROID_NDK_ROOT/sources/cxx-stl/llvm-libc++/libcxx/include"
+    LLVM_INCLUDE_DIR="$ANDROID_NDK_ROOT/sources/cxx-stl/llvm-libc++/libcxx/include"
 fi
 
 case "$THE_STL" in
   stlport-static)
-	AOSP_STL_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/stlport/stlport/"
-	AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/stlport/libs/$AOSP_ABI/libstlport_static.a"
-	;;
+    AOSP_STL_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/stlport/stlport/"
+    AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/stlport/libs/$AOSP_ABI/libstlport_static.a"
+    ;;
   stlport|stlport-shared)
-	AOSP_STL_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/stlport/stlport/"
-	AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/stlport/libs/$AOSP_ABI/libstlport_shared.so"
-	;;
+    AOSP_STL_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/stlport/stlport/"
+    AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/stlport/libs/$AOSP_ABI/libstlport_shared.so"
+    ;;
   gabi++-static|gnu-static)
-	AOSP_STL_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/include"
-	AOSP_BITS_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/libs/$AOSP_ABI/include"
-	AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/libs/$AOSP_ABI/libgnustl_static.a"
-	;;
+    AOSP_STL_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/include"
+    AOSP_BITS_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/libs/$AOSP_ABI/include"
+    AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/libs/$AOSP_ABI/libgnustl_static.a"
+    ;;
   gnu|gabi++|gnu-shared|gabi++-shared)
-	AOSP_STL_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/include"
-	AOSP_BITS_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/libs/$AOSP_ABI/include"
-	AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/libs/$AOSP_ABI/libgnustl_shared.so"
-	;;
+    AOSP_STL_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/include"
+    AOSP_BITS_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/libs/$AOSP_ABI/include"
+    AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/libs/$AOSP_ABI/libgnustl_shared.so"
+    ;;
   llvm-static)
-	echo WARNING: llvm is still in experimental state and migth not work as expected
-	if [ ! -d "$LLVM_INCLUDE_DIR" ]; then
-		echo "ERROR: Unable to locate include LLVM directory at $LLVM_INCLUDE_DIR -- has it moved since NDK r16beta1?"
-		[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
-	fi
-	AOSP_STL_INC="$LLVM_INCLUDE_DIR"
-	AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/llvm-libc++/libs/$AOSP_ABI/libc++_static.a"
-	;;
+    echo WARNING: llvm is still in experimental state and migth not work as expected
+    if [ ! -d "$LLVM_INCLUDE_DIR" ]; then
+        echo "ERROR: Unable to locate include LLVM directory at $LLVM_INCLUDE_DIR -- has it moved since NDK r16beta1?"
+        [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
+    fi
+    AOSP_STL_INC="$LLVM_INCLUDE_DIR"
+    AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/llvm-libc++/libs/$AOSP_ABI/libc++_static.a"
+    ;;
   llvm|llvm-shared)
-	echo WARNING: llvm is still in experimental state and migth not work as expected
-	if [ ! -d "$LLVM_INCLUDE_DIR" ]; then
-		echo "ERROR: Unable to locate LLVM include directory at $LLVM_INCLUDE_DIR -- has it moved since NDK r16beta1?"
-		[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
-	fi
-	AOSP_STL_INC="$LLVM_INCLUDE_DIR"
-	AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/llvm-libc++/libs/$AOSP_ABI/libc++_shared.so"
-	;;
+    echo WARNING: llvm is still in experimental state and migth not work as expected
+    if [ ! -d "$LLVM_INCLUDE_DIR" ]; then
+        echo "ERROR: Unable to locate LLVM include directory at $LLVM_INCLUDE_DIR -- has it moved since NDK r16beta1?"
+        [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
+    fi
+    AOSP_STL_INC="$LLVM_INCLUDE_DIR"
+    AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/llvm-libc++/libs/$AOSP_ABI/libc++_shared.so"
+    ;;
   *)
-	echo "ERROR: Unknown STL library $2"
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Unknown STL library $2"
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 esac
 
 # Error checking
 if [ ! -d "$AOSP_STL_INC" ] || [ ! -e "$AOSP_STL_INC/memory" ]; then
-	echo "ERROR: AOSP_STL_INC is not valid. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: AOSP_STL_INC is not valid. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_STL_LIB" ]; then
-	echo "ERROR: AOSP_STL_LIB is not valid. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: AOSP_STL_LIB is not valid. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 export AOSP_STL_INC
 export AOSP_STL_LIB
 
 if [ ! -z "$AOSP_BITS_INC" ]; then
-	export AOSP_BITS_INC
+    export AOSP_BITS_INC
 fi
 
 # Now that we are using cpu-features from Android rather than CPU probing, we
@@ -371,14 +376,14 @@ fi
 # directory and then build it.
 
 if [[ ! -e "$ANDROID_NDK_ROOT/sources/android/cpufeatures/cpu-features.h" ]]; then
-	echo "ERROR: Unable to locate cpu-features.h"
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Unable to locate cpu-features.h"
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 cp "$ANDROID_NDK_ROOT/sources/android/cpufeatures/cpu-features.h" .
 
 if [[ ! -e "$ANDROID_NDK_ROOT/sources/android/cpufeatures/cpu-features.c" ]]; then
-	echo "ERROR: Unable to locate cpu-features.c"
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Unable to locate cpu-features.c"
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 cp "$ANDROID_NDK_ROOT/sources/android/cpufeatures/cpu-features.c" .
 
@@ -409,33 +414,33 @@ fi
 
 COUNT=$(echo -n "$AOSP_STL_LIB" | egrep -i -c 'libstdc\+\+')
 if [[ ("$COUNT" -ne "0") ]]; then
-	echo
-	echo "*******************************************************************************"
-	echo "You are using GNU's runtime and STL library. Please ensure the resulting"
-	echo "binary meets licensing requirements. If you can't use GNU's runtime"
-	echo "and STL library, then reconfigure with stlport or llvm. Also see"
-	echo "http://code.google.com/p/android/issues/detail?id=216331"
-	echo "*******************************************************************************"
+    echo
+    echo "*******************************************************************************"
+    echo "You are using GNU's runtime and STL library. Please ensure the resulting"
+    echo "binary meets licensing requirements. If you can't use GNU's runtime"
+    echo "and STL library, then reconfigure with stlport or llvm. Also see"
+    echo "http://code.google.com/p/android/issues/detail?id=216331"
+    echo "*******************************************************************************"
 fi
 
 COUNT=$(echo -n "$AOSP_STL_LIB" | grep -i -c 'libstlport')
 if [[ ("$COUNT" -ne "0") ]]; then
-	echo
-	echo "*******************************************************************************"
-	echo "You are using STLport's runtime and STL library. STLport could cause problems"
-	echo "if the resulting binary is used in other environments, like a QT project."
-	echo "Also see http://code.google.com/p/android/issues/detail?id=216331"
-	echo "*******************************************************************************"
+    echo
+    echo "*******************************************************************************"
+    echo "You are using STLport's runtime and STL library. STLport could cause problems"
+    echo "if the resulting binary is used in other environments, like a QT project."
+    echo "Also see http://code.google.com/p/android/issues/detail?id=216331"
+    echo "*******************************************************************************"
 fi
 
 COUNT=$(echo -n "$AOSP_STL_LIB" | egrep -i -c 'libc\+\+')
 if [[ ("$COUNT" -ne "0") ]]; then
-	echo
-	echo "*******************************************************************************"
-	echo "You are using LLVM's runtime and STL library. LLVM could cause problems"
-	echo "if the resulting binary is used in other environments, like a QT project."
-	echo "Also see http://code.google.com/p/android/issues/detail?id=216331"
-	echo "*******************************************************************************"
+    echo
+    echo "*******************************************************************************"
+    echo "You are using LLVM's runtime and STL library. LLVM could cause problems"
+    echo "if the resulting binary is used in other environments, like a QT project."
+    echo "Also see http://code.google.com/p/android/issues/detail?id=216331"
+    echo "*******************************************************************************"
 fi
 
 echo
@@ -446,4 +451,4 @@ echo "shared object using 'HAS_SOLIB_VERSION=1 make -f GNUmakefile-cross'"
 echo "*******************************************************************************"
 echo
 
-[ "$0" = "$BASH_SOURCE" ] && exit 0 || return 0
+[ "$0" = "${BASH_SOURCE[0]}" ] && exit 0 || return 0
diff --git a/TestScripts/setenv-android-old.sh b/TestScripts/setenv-android-old.sh
index d93b568d..ade69bd0 100755
--- a/TestScripts/setenv-android-old.sh
+++ b/TestScripts/setenv-android-old.sh
@@ -20,6 +20,11 @@
 
 # set -eu
 
+# Sanity check
+if [ "$0" != "${BASH_SOURCE[0]}" ]; then
+    echo "Please source this setenv script"
+fi
+
 unset IS_CROSS_COMPILE
 
 unset IS_IOS
@@ -38,8 +43,8 @@ unset CPP CC CXX LD AS AR RANLIB STRIP
 
 # Similar to a "make clean"
 if [ x"${1-}" = "xunset" ]; then
-	echo "Unsetting script variables. PATH may remain tainted"
-	[ "$0" = "$BASH_SOURCE" ] && exit 0 || return 0
+    echo "Unsetting script variables. PATH may remain tainted"
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 0 || return 0
 fi
 
 # Set AOSP_TOOLCHAIN_SUFFIX to your preference of tools and STL library.
@@ -47,7 +52,7 @@ fi
 # AOSP_TOOLCHAIN_SUFFIX=4.8
 # AOSP_TOOLCHAIN_SUFFIX=4.9
 if [ -z "${AOSP_TOOLCHAIN_SUFFIX-}" ]; then
-	AOSP_TOOLCHAIN_SUFFIX=4.9
+    AOSP_TOOLCHAIN_SUFFIX=4.9
 fi
 
 # Set AOSP_API to the API you want to use. 'armeabi' and 'armeabi-v7a' need
@@ -63,7 +68,7 @@ fi
 # AOSP_API="android-21"    # Android 5.0 and above
 # AOSP_API="android-23"    # Android 6.0 and above
 if [ -z "${AOSP_API-}" ]; then
-	AOSP_API="android-21"
+    AOSP_API="android-21"
 fi
 
 #####################################################################
@@ -74,102 +79,102 @@ fi
 #   like ANDROID_NDK_ROOT=/opt/android-ndk-r10e or ANDROID_NDK_ROOT=/usr/local/android-ndk-r10e.
 
 if [ -z "${ANDROID_NDK_ROOT-}" ]; then
-	ANDROID_NDK_ROOT=$(find /opt -maxdepth 1 -type d -name android-ndk* 2>/dev/null | tail -1)
+    ANDROID_NDK_ROOT=$(find /opt -maxdepth 1 -type d -name android-ndk* 2>/dev/null | tail -1)
 
-	if [ -z "$ANDROID_NDK_ROOT" ]; then
-		ANDROID_NDK_ROOT=$(find /usr/local -maxdepth 1 -type d -name android-ndk* 2>/dev/null | tail -1)
-	fi
-	if [ -z "$ANDROID_NDK_ROOT" ]; then
-		ANDROID_NDK_ROOT=$(find $HOME -maxdepth 1 -type d -name android-ndk* 2>/dev/null | tail -1)
-	fi
-	if [ -d "$HOME/Library/Android/sdk/ndk-bundle" ]; then
-		ANDROID_NDK_ROOT="$HOME/Library/Android/sdk/ndk-bundle"
-	fi
+    if [ -z "$ANDROID_NDK_ROOT" ]; then
+        ANDROID_NDK_ROOT=$(find /usr/local -maxdepth 1 -type d -name android-ndk* 2>/dev/null | tail -1)
+    fi
+    if [ -z "$ANDROID_NDK_ROOT" ]; then
+        ANDROID_NDK_ROOT=$(find $HOME -maxdepth 1 -type d -name android-ndk* 2>/dev/null | tail -1)
+    fi
+    if [ -d "$HOME/Library/Android/sdk/ndk-bundle" ]; then
+        ANDROID_NDK_ROOT="$HOME/Library/Android/sdk/ndk-bundle"
+    fi
 fi
 
 # Error checking
 if [ ! -d "$ANDROID_NDK_ROOT/toolchains" ]; then
-	echo "ERROR: ANDROID_NDK_ROOT is not a valid path. Please set it."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: ANDROID_NDK_ROOT is not a valid path. Please set it."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 #####################################################################
 
 if [ "$#" -lt 1 ]; then
-	THE_ARCH=armv7a-neon
+    THE_ARCH=armv7a-neon
 else
-	THE_ARCH=$(tr [A-Z] [a-z] <<< "$1")
+    THE_ARCH=$(tr [A-Z] [a-z] <<< "$1")
 fi
 
 # https://developer.android.com/ndk/guides/abis.html
 case "$THE_ARCH" in
   arm|armv5|armv6|armv7|armeabi)
-	TOOLCHAIN_ARCH="arm-linux-androideabi"
-	TOOLCHAIN_NAME="arm-linux-androideabi"
-	AOSP_ABI="armeabi"
-	AOSP_ARCH="arch-arm"
-	AOSP_FLAGS="-march=armv5te -mtune=xscale -mthumb -msoft-float -DCRYPTOPP_DISABLE_ASM -funwind-tables -fexceptions -frtti"
-	;;
+    TOOLCHAIN_ARCH="arm-linux-androideabi"
+    TOOLCHAIN_NAME="arm-linux-androideabi"
+    AOSP_ABI="armeabi"
+    AOSP_ARCH="arch-arm"
+    AOSP_FLAGS="-march=armv5te -mtune=xscale -mthumb -msoft-float -DCRYPTOPP_DISABLE_ASM -funwind-tables -fexceptions -frtti"
+    ;;
   armv7a|armv7-a|armeabi-v7a)
-	TOOLCHAIN_ARCH="arm-linux-androideabi"
-	TOOLCHAIN_NAME="arm-linux-androideabi"
-	AOSP_ABI="armeabi-v7a"
-	AOSP_ARCH="arch-arm"
-	AOSP_FLAGS="-march=armv7-a -mthumb -mfpu=vfpv3-d16 -mfloat-abi=softfp -DCRYPTOPP_DISABLE_ASM -Wl,--fix-cortex-a8 -funwind-tables -fexceptions -frtti"
-	;;
+    TOOLCHAIN_ARCH="arm-linux-androideabi"
+    TOOLCHAIN_NAME="arm-linux-androideabi"
+    AOSP_ABI="armeabi-v7a"
+    AOSP_ARCH="arch-arm"
+    AOSP_FLAGS="-march=armv7-a -mthumb -mfpu=vfpv3-d16 -mfloat-abi=softfp -DCRYPTOPP_DISABLE_ASM -Wl,--fix-cortex-a8 -funwind-tables -fexceptions -frtti"
+    ;;
   hard|armv7a-hard|armeabi-v7a-hard)
-	TOOLCHAIN_ARCH="arm-linux-androideabi"
-	TOOLCHAIN_NAME="arm-linux-androideabi"
-	AOSP_ABI="armeabi-v7a"
-	AOSP_ARCH="arch-arm"
-	AOSP_FLAGS="-mhard-float -D_NDK_MATH_NO_SOFTFP=1 -march=armv7-a -mfpu=vfpv3-d16 -DCRYPTOPP_DISABLE_ASM -mfloat-abi=softfp -Wl,--fix-cortex-a8 -funwind-tables -fexceptions -frtti -Wl,--no-warn-mismatch -Wl,-lm_hard"
-	;;
+    TOOLCHAIN_ARCH="arm-linux-androideabi"
+    TOOLCHAIN_NAME="arm-linux-androideabi"
+    AOSP_ABI="armeabi-v7a"
+    AOSP_ARCH="arch-arm"
+    AOSP_FLAGS="-mhard-float -D_NDK_MATH_NO_SOFTFP=1 -march=armv7-a -mfpu=vfpv3-d16 -DCRYPTOPP_DISABLE_ASM -mfloat-abi=softfp -Wl,--fix-cortex-a8 -funwind-tables -fexceptions -frtti -Wl,--no-warn-mismatch -Wl,-lm_hard"
+    ;;
   neon|armv7a-neon)
-	TOOLCHAIN_ARCH="arm-linux-androideabi"
-	TOOLCHAIN_NAME="arm-linux-androideabi"
-	AOSP_ABI="armeabi-v7a"
-	AOSP_ARCH="arch-arm"
-	AOSP_FLAGS="-march=armv7-a -mfpu=neon -mfloat-abi=softfp -Wl,--fix-cortex-a8 -funwind-tables -fexceptions -frtti"
-	;;
+    TOOLCHAIN_ARCH="arm-linux-androideabi"
+    TOOLCHAIN_NAME="arm-linux-androideabi"
+    AOSP_ABI="armeabi-v7a"
+    AOSP_ARCH="arch-arm"
+    AOSP_FLAGS="-march=armv7-a -mfpu=neon -mfloat-abi=softfp -Wl,--fix-cortex-a8 -funwind-tables -fexceptions -frtti"
+    ;;
   armv8|armv8a|aarch64|arm64|arm64-v8a)
-	TOOLCHAIN_ARCH="aarch64-linux-android"
-	TOOLCHAIN_NAME="aarch64-linux-android"
-	AOSP_ABI="arm64-v8a"
-	AOSP_ARCH="arch-arm64"
-	AOSP_FLAGS="-funwind-tables -fexceptions -frtti"
-	;;
+    TOOLCHAIN_ARCH="aarch64-linux-android"
+    TOOLCHAIN_NAME="aarch64-linux-android"
+    AOSP_ABI="arm64-v8a"
+    AOSP_ARCH="arch-arm64"
+    AOSP_FLAGS="-funwind-tables -fexceptions -frtti"
+    ;;
   mips|mipsel)
-	TOOLCHAIN_ARCH="mipsel-linux-android"
-	TOOLCHAIN_NAME="mipsel-linux-android"
-	AOSP_ABI="mips"
-	AOSP_ARCH="arch-mips"
-	AOSP_FLAGS="-funwind-tables -fexceptions -frtti"
-	;;
+    TOOLCHAIN_ARCH="mipsel-linux-android"
+    TOOLCHAIN_NAME="mipsel-linux-android"
+    AOSP_ABI="mips"
+    AOSP_ARCH="arch-mips"
+    AOSP_FLAGS="-funwind-tables -fexceptions -frtti"
+    ;;
   mips64|mipsel64|mips64el)
-	TOOLCHAIN_ARCH="mips64el-linux-android"
-	TOOLCHAIN_NAME="mips64el-linux-android"
-	AOSP_ABI="mips64"
-	AOSP_ARCH="arch-mips64"
-	AOSP_FLAGS="-funwind-tables -fexceptions -frtti"
-	;;
+    TOOLCHAIN_ARCH="mips64el-linux-android"
+    TOOLCHAIN_NAME="mips64el-linux-android"
+    AOSP_ABI="mips64"
+    AOSP_ARCH="arch-mips64"
+    AOSP_FLAGS="-funwind-tables -fexceptions -frtti"
+    ;;
   x86)
-	TOOLCHAIN_ARCH="x86"
-	TOOLCHAIN_NAME="i686-linux-android"
-	AOSP_ABI="x86"
-	AOSP_ARCH="arch-x86"
-	AOSP_FLAGS="-mtune=intel -mssse3 -mfpmath=sse -funwind-tables -fexceptions -frtti"
-	;;
+    TOOLCHAIN_ARCH="x86"
+    TOOLCHAIN_NAME="i686-linux-android"
+    AOSP_ABI="x86"
+    AOSP_ARCH="arch-x86"
+    AOSP_FLAGS="-mtune=intel -mssse3 -mfpmath=sse -funwind-tables -fexceptions -frtti"
+    ;;
   x86_64|x64)
-	TOOLCHAIN_ARCH="x86_64"
-	TOOLCHAIN_NAME="x86_64-linux-android"
-	AOSP_ABI="x86_64"
-	AOSP_ARCH="arch-x86_64"
-	AOSP_FLAGS="-march=x86-64 -msse4.2 -mpopcnt -mtune=intel -funwind-tables -fexceptions -frtti"
-	;;
+    TOOLCHAIN_ARCH="x86_64"
+    TOOLCHAIN_NAME="x86_64-linux-android"
+    AOSP_ABI="x86_64"
+    AOSP_ARCH="arch-x86_64"
+    AOSP_FLAGS="-march=x86-64 -msse4.2 -mpopcnt -mtune=intel -funwind-tables -fexceptions -frtti"
+    ;;
   *)
-	echo "ERROR: Unknown architecture $1"
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
-	;;
+    echo "ERROR: Unknown architecture $1"
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
+    ;;
 esac
 
 #####################################################################
@@ -195,79 +200,79 @@ export STRIP="$TOOLCHAIN_NAME-strip"
 AOSP_TOOLCHAIN_PATH=""
 for host in "linux-x86_64" "darwin-x86_64" "linux-x86" "darwin-x86"
 do
-	if [ -d "$ANDROID_NDK_ROOT/toolchains/$TOOLCHAIN_ARCH-$AOSP_TOOLCHAIN_SUFFIX/prebuilt/$host/bin" ]; then
-		AOSP_TOOLCHAIN_PATH="$ANDROID_NDK_ROOT/toolchains/$TOOLCHAIN_ARCH-$AOSP_TOOLCHAIN_SUFFIX/prebuilt/$host/bin"
-		break
-	fi
+    if [ -d "$ANDROID_NDK_ROOT/toolchains/$TOOLCHAIN_ARCH-$AOSP_TOOLCHAIN_SUFFIX/prebuilt/$host/bin" ]; then
+        AOSP_TOOLCHAIN_PATH="$ANDROID_NDK_ROOT/toolchains/$TOOLCHAIN_ARCH-$AOSP_TOOLCHAIN_SUFFIX/prebuilt/$host/bin"
+        break
+    fi
 done
 
 # Error checking
 if [ -z "$AOSP_TOOLCHAIN_PATH" ] || [ ! -d "$AOSP_TOOLCHAIN_PATH" ]; then
-	echo "ERROR: AOSP_TOOLCHAIN_PATH is not valid. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: AOSP_TOOLCHAIN_PATH is not valid. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$CPP" ]; then
-	echo "ERROR: Failed to find Android cpp. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Failed to find Android cpp. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$CC" ]; then
-	echo "ERROR: Failed to find Android gcc. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Failed to find Android gcc. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$CXX" ]; then
-	echo "ERROR: Failed to find Android g++. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Failed to find Android g++. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$RANLIB" ]; then
-	echo "ERROR: Failed to find Android ranlib. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Failed to find Android ranlib. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$AR" ]; then
-	echo "ERROR: Failed to find Android ar. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Failed to find Android ar. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$AS" ]; then
-	echo "ERROR: Failed to find Android as. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Failed to find Android as. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$LD" ]; then
-	echo "ERROR: Failed to find Android ld. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Failed to find Android ld. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Only modify/export PATH if AOSP_TOOLCHAIN_PATH good
 if [ -d "$AOSP_TOOLCHAIN_PATH" ]; then
 
-	# And only modify PATH if AOSP_TOOLCHAIN_PATH is not present
-	LEN=${#AOSP_TOOLCHAIN_PATH}
-	SUBSTR=${PATH:0:$LEN}
-	if [ "$SUBSTR" != "$AOSP_TOOLCHAIN_PATH" ]; then
-		export PATH="$AOSP_TOOLCHAIN_PATH":"$PATH"
-	fi
+    # And only modify PATH if AOSP_TOOLCHAIN_PATH is not present
+    LEN=${#AOSP_TOOLCHAIN_PATH}
+    SUBSTR=${PATH:0:$LEN}
+    if [ "$SUBSTR" != "$AOSP_TOOLCHAIN_PATH" ]; then
+        export PATH="$AOSP_TOOLCHAIN_PATH":"$PATH"
+    fi
 fi
 
 #####################################################################
 
 # Error checking
 if [ ! -d "$ANDROID_NDK_ROOT/platforms/$AOSP_API" ]; then
-	echo "ERROR: AOSP_API is not valid. Does the NDK support the API? Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: AOSP_API is not valid. Does the NDK support the API? Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 elif [ ! -d "$ANDROID_NDK_ROOT/platforms/$AOSP_API/$AOSP_ARCH" ]; then
-	echo "ERROR: AOSP_ARCH is not valid. Does the NDK support the architecture? Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: AOSP_ARCH is not valid. Does the NDK support the architecture? Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Android SYSROOT. It will be used on the command line with --sysroot
@@ -279,74 +284,74 @@ export AOSP_SYSROOT="$ANDROID_NDK_ROOT/platforms/$AOSP_API/$AOSP_ARCH"
 # Android STL. We support GNU, LLVM and STLport out of the box.
 
 if [ "$#" -lt 2 ]; then
-	THE_STL=gnu-shared
+    THE_STL=gnu-shared
 else
-	THE_STL=$(tr [A-Z] [a-z] <<< "$2")
+    THE_STL=$(tr [A-Z] [a-z] <<< "$2")
 fi
 
 # LLVM include directory may be different depending on NDK version. Default to new location (latest NDK checked: r16beta1).
 LLVM_INCLUDE_DIR="$ANDROID_NDK_ROOT/sources/cxx-stl/llvm-libc++/include"
 if [ ! -d "$LLVM_INCLUDE_DIR" ]; then
-	LLVM_INCLUDE_DIR="$ANDROID_NDK_ROOT/sources/cxx-stl/llvm-libc++/libcxx/include"
+    LLVM_INCLUDE_DIR="$ANDROID_NDK_ROOT/sources/cxx-stl/llvm-libc++/libcxx/include"
 fi
 
 case "$THE_STL" in
   stlport-static)
-	AOSP_STL_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/stlport/stlport/"
-	AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/stlport/libs/$AOSP_ABI/libstlport_static.a"
-	;;
+    AOSP_STL_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/stlport/stlport/"
+    AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/stlport/libs/$AOSP_ABI/libstlport_static.a"
+    ;;
   stlport|stlport-shared)
-	AOSP_STL_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/stlport/stlport/"
-	AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/stlport/libs/$AOSP_ABI/libstlport_shared.so"
-	;;
+    AOSP_STL_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/stlport/stlport/"
+    AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/stlport/libs/$AOSP_ABI/libstlport_shared.so"
+    ;;
   gabi++-static|gnu-static)
-	AOSP_STL_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/include"
-	AOSP_BITS_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/libs/$AOSP_ABI/include"
-	AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/libs/$AOSP_ABI/libgnustl_static.a"
-	;;
+    AOSP_STL_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/include"
+    AOSP_BITS_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/libs/$AOSP_ABI/include"
+    AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/libs/$AOSP_ABI/libgnustl_static.a"
+    ;;
   gnu|gabi++|gnu-shared|gabi++-shared)
-	AOSP_STL_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/include"
-	AOSP_BITS_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/libs/$AOSP_ABI/include"
-	AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/libs/$AOSP_ABI/libgnustl_shared.so"
-	;;
+    AOSP_STL_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/include"
+    AOSP_BITS_INC="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/libs/$AOSP_ABI/include"
+    AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/gnu-libstdc++/$AOSP_TOOLCHAIN_SUFFIX/libs/$AOSP_ABI/libgnustl_shared.so"
+    ;;
   llvm-static)
-  	if [ ! -d "$LLVM_INCLUDE_DIR" ]; then
-		echo "ERROR: Unable to locate include LLVM directory at $LLVM_INCLUDE_DIR -- has it moved since NDK r16beta1?"
-		[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
-	fi
-	AOSP_STL_INC="$LLVM_INCLUDE_DIR"
-	AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/llvm-libc++/libs/$AOSP_ABI/libc++_static.a"
-	;;
+      if [ ! -d "$LLVM_INCLUDE_DIR" ]; then
+        echo "ERROR: Unable to locate include LLVM directory at $LLVM_INCLUDE_DIR -- has it moved since NDK r16beta1?"
+        [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
+    fi
+    AOSP_STL_INC="$LLVM_INCLUDE_DIR"
+    AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/llvm-libc++/libs/$AOSP_ABI/libc++_static.a"
+    ;;
   llvm|llvm-shared)
-  	if [ ! -d "$LLVM_INCLUDE_DIR" ]; then
-		echo "ERROR: Unable to locate LLVM include directory at $LLVM_INCLUDE_DIR -- has it moved since NDK r16beta1?"
-		[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
-	fi
-	AOSP_STL_INC="$LLVM_INCLUDE_DIR"
-	AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/llvm-libc++/libs/$AOSP_ABI/libc++_shared.so"
-	;;
+      if [ ! -d "$LLVM_INCLUDE_DIR" ]; then
+        echo "ERROR: Unable to locate LLVM include directory at $LLVM_INCLUDE_DIR -- has it moved since NDK r16beta1?"
+        [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
+    fi
+    AOSP_STL_INC="$LLVM_INCLUDE_DIR"
+    AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/llvm-libc++/libs/$AOSP_ABI/libc++_shared.so"
+    ;;
   *)
-	echo "ERROR: Unknown STL library $2"
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Unknown STL library $2"
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 esac
 
 # Error checking
 if [ ! -d "$AOSP_STL_INC" ] || [ ! -e "$AOSP_STL_INC/memory" ]; then
-	echo "ERROR: AOSP_STL_INC is not valid. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: AOSP_STL_INC is not valid. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_STL_LIB" ]; then
-	echo "ERROR: AOSP_STL_LIB is not valid. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: AOSP_STL_LIB is not valid. Please edit this script."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 export AOSP_STL_INC
 export AOSP_STL_LIB
 
 if [ ! -z "$AOSP_BITS_INC" ]; then
-	export AOSP_BITS_INC
+    export AOSP_BITS_INC
 fi
 
 # Now that we are using cpu-features from Android rather than CPU probing, we
@@ -354,14 +359,14 @@ fi
 # directory and then build it.
 
 if [[ ! -e "$ANDROID_NDK_ROOT/sources/android/cpufeatures/cpu-features.h" ]]; then
-	echo "ERROR: Unable to locate cpu-features.h"
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Unable to locate cpu-features.h"
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 cp "$ANDROID_NDK_ROOT/sources/android/cpufeatures/cpu-features.h" .
 
 if [[ ! -e "$ANDROID_NDK_ROOT/sources/android/cpufeatures/cpu-features.c" ]]; then
-	echo "ERROR: Unable to locate cpu-features.c"
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: Unable to locate cpu-features.c"
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 cp "$ANDROID_NDK_ROOT/sources/android/cpufeatures/cpu-features.c" .
 
@@ -390,33 +395,33 @@ fi
 
 COUNT=$(echo -n "$AOSP_STL_LIB" | egrep -i -c 'libstdc\+\+')
 if [[ ("$COUNT" -ne "0") ]]; then
-	echo
-	echo "*******************************************************************************"
-	echo "You are using GNU's runtime and STL library. Please ensure the resulting"
-	echo "binary meets licensing requirements. If you can't use GNU's runtime"
-	echo "and STL library, then reconfigure with stlport or llvm. Also see"
-	echo "http://code.google.com/p/android/issues/detail?id=216331"
-	echo "*******************************************************************************"
+    echo
+    echo "*******************************************************************************"
+    echo "You are using GNU's runtime and STL library. Please ensure the resulting"
+    echo "binary meets licensing requirements. If you can't use GNU's runtime"
+    echo "and STL library, then reconfigure with stlport or llvm. Also see"
+    echo "http://code.google.com/p/android/issues/detail?id=216331"
+    echo "*******************************************************************************"
 fi
 
 COUNT=$(echo -n "$AOSP_STL_LIB" | grep -i -c 'libstlport')
 if [[ ("$COUNT" -ne "0") ]]; then
-	echo
-	echo "*******************************************************************************"
-	echo "You are using STLport's runtime and STL library. STLport could cause problems"
-	echo "if the resulting binary is used in other environments, like a QT project."
-	echo "Also see http://code.google.com/p/android/issues/detail?id=216331"
-	echo "*******************************************************************************"
+    echo
+    echo "*******************************************************************************"
+    echo "You are using STLport's runtime and STL library. STLport could cause problems"
+    echo "if the resulting binary is used in other environments, like a QT project."
+    echo "Also see http://code.google.com/p/android/issues/detail?id=216331"
+    echo "*******************************************************************************"
 fi
 
 COUNT=$(echo -n "$AOSP_STL_LIB" | egrep -i -c 'libc\+\+')
 if [[ ("$COUNT" -ne "0") ]]; then
-	echo
-	echo "*******************************************************************************"
-	echo "You are using LLVM's runtime and STL library. LLVM could cause problems"
-	echo "if the resulting binary is used in other environments, like a QT project."
-	echo "Also see http://code.google.com/p/android/issues/detail?id=216331"
-	echo "*******************************************************************************"
+    echo
+    echo "*******************************************************************************"
+    echo "You are using LLVM's runtime and STL library. LLVM could cause problems"
+    echo "if the resulting binary is used in other environments, like a QT project."
+    echo "Also see http://code.google.com/p/android/issues/detail?id=216331"
+    echo "*******************************************************************************"
 fi
 
 echo
@@ -427,4 +432,4 @@ echo "shared object using 'HAS_SOLIB_VERSION=1 make -f GNUmakefile-cross'"
 echo "*******************************************************************************"
 echo
 
-[ "$0" = "$BASH_SOURCE" ] && exit 0 || return 0
+[ "$0" = "${BASH_SOURCE[0]}" ] && exit 0 || return 0
diff --git a/TestScripts/setenv-embedded.sh b/TestScripts/setenv-embedded.sh
index 7e743ab8..d785574f 100755
--- a/TestScripts/setenv-embedded.sh
+++ b/TestScripts/setenv-embedded.sh
@@ -15,6 +15,11 @@
 
 # set -eu
 
+# Sanity check
+if [ "$0" != "${BASH_SOURCE[0]}" ]; then
+    echo "Please source this setenv script"
+fi
+
 # Unset old options
 
 unset IS_CROSS_COMPILE
@@ -24,12 +29,12 @@ unset IS_ANDROID
 unset IS_ARM_EMBEDDED
 
 if [ -z "${ARM_EMBEDDED_TOOLCHAIN-}" ]; then
-	ARM_EMBEDDED_TOOLCHAIN="/usr/bin"
+    ARM_EMBEDDED_TOOLCHAIN="/usr/bin"
 fi
 
 if [ ! -d "$ARM_EMBEDDED_TOOLCHAIN" ]; then
-	echo "ARM_EMBEDDED_TOOLCHAIN is not valid"
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ARM_EMBEDDED_TOOLCHAIN is not valid"
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Fedora
@@ -50,37 +55,37 @@ export RANLIB="$ARM_EMBEDDED_TOOLCHAIN/$TOOL_PREFIX-ranlib"
 # Test a few of the tools
 if [ ! -e "$CPP" ]; then
   echo "ERROR: CPP is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 if [ ! -e "$CC" ]; then
   echo "ERROR: CC is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 if [ ! -e "$CXX" ]; then
   echo "ERROR: CXX is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 if [ ! -e "$AR" ]; then
   echo "ERROR: AR is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 if [ ! -e "$AS" ]; then
   echo "ERROR: AS is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 if [ ! -e "$RANLIB" ]; then
   echo "ERROR: RANLIB is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 if [ ! -e "$LD" ]; then
   echo "ERROR: LD is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # The Crypto++ Makefile uses these to disable host settings like
@@ -94,7 +99,7 @@ fi
 
 if [ ! -d "$ARM_EMBEDDED_SYSROOT" ]; then
   echo "ERROR: ARM_EMBEDDED_SYSROOT is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Fix C++ header paths for Ubuntu
@@ -104,12 +109,12 @@ ARM_EMBEDDED_CXX_HEADERS="$ARM_EMBEDDED_SYSROOT/include/c++/$ARM_EMBEDDED_TOOLCH
 
 if [ ! -d "$ARM_EMBEDDED_CXX_HEADERS" ]; then
   echo "ERROR: ARM_EMBEDDED_CXX_HEADERS is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 if [ ! -d "$ARM_EMBEDDED_CXX_HEADERS/arm-linux-gnueabi" ]; then
   echo "ERROR: ARM_EMBEDDED_CXX_HEADERS is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Finally, the flags...
@@ -142,4 +147,4 @@ echo "shared object using 'HAS_SOLIB_VERSION=1 make -f GNUmakefile-cross'"
 echo "*******************************************************************************"
 echo
 
-[ "$0" = "$BASH_SOURCE" ] && exit 0 || return 0
+[ "$0" = "${BASH_SOURCE[0]}" ] && exit 0 || return 0
diff --git a/TestScripts/setenv-ios.sh b/TestScripts/setenv-ios.sh
index efd6a8b5..577ad055 100755
--- a/TestScripts/setenv-ios.sh
+++ b/TestScripts/setenv-ios.sh
@@ -13,6 +13,11 @@
 
 # set -eu
 
+# Sanity check
+if [ "$0" != "${BASH_SOURCE[0]}" ]; then
+    echo "Please source this setenv script"
+fi
+
 #########################################
 #####       Clear old options       #####
 #########################################
@@ -131,12 +136,12 @@ done
 # Defaults if not set
 if [ -z "$APPLE_SDK" ]; then
     BACK_ARCH=armv7
-	APPLE_SDK=iPhoneOS
+    APPLE_SDK=iPhoneOS
 fi
 
 # Defaults if not set
 if [ -z "$IOS_ARCH" ]; then
-	IOS_ARCH="$BACK_ARCH"
+    IOS_ARCH="$BACK_ARCH"
 fi
 
 # Allow a user override? I think we should be doing this. The use case is:
@@ -149,7 +154,7 @@ fi
 
 if [ ! -d "$XCODE_DEVELOPER" ]; then
   echo "ERROR: unable to find XCODE_DEVELOPER directory."
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Default toolchain location
@@ -157,7 +162,7 @@ XCODE_TOOLCHAIN="$XCODE_DEVELOPER/usr/bin"
 
 if [ ! -d "$XCODE_TOOLCHAIN" ]; then
   echo "ERROR: unable to find XCODE_TOOLCHAIN directory."
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # XCODE_DEVELOPER_TOP is the top of the development tools tree
@@ -165,7 +170,7 @@ XCODE_DEVELOPER_TOP="$XCODE_DEVELOPER/Platforms/$APPLE_SDK.platform/Developer"
 
 if [ ! -d "$XCODE_DEVELOPER_TOP" ]; then
   echo "ERROR: unable to find XCODE_DEVELOPER_TOP directory."
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # IOS_TOOLCHAIN is the location of the actual compiler tools.
@@ -177,7 +182,7 @@ fi
 
 if [ -z "$IOS_TOOLCHAIN" ] || [ ! -d "$IOS_TOOLCHAIN" ]; then
   echo "ERROR: unable to find Xcode cross-compiler tools."
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 #
@@ -187,16 +192,16 @@ fi
 unset XCODE_SDK
 for i in $(seq -f "%.1f" 20.0 -0.1 1.0)
 do
-	if [ -d "$XCODE_DEVELOPER/Platforms/$APPLE_SDK.platform/Developer/SDKs/$APPLE_SDK$i.sdk" ]; then
-    	XCODE_SDK="$APPLE_SDK$i.sdk"
-      	break
-	fi
+    if [ -d "$XCODE_DEVELOPER/Platforms/$APPLE_SDK.platform/Developer/SDKs/$APPLE_SDK$i.sdk" ]; then
+        XCODE_SDK="$APPLE_SDK$i.sdk"
+          break
+    fi
 done
 
 # Error checking
 if [ -z "$XCODE_SDK" ]; then
     echo "ERROR: unable to find a SDK."
-    [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # https://github.com/weidai11/cryptopp/issues/635
@@ -276,16 +281,16 @@ fi
 # Only modify/export PATH if IOS_TOOLCHAIN good
 if [ ! -z "$IOS_TOOLCHAIN" ] && [ ! -z "$XCODE_TOOLCHAIN" ]; then
 
-	# And only modify PATH if IOS_TOOLCHAIN is not present
-	TOOL_PATH="$IOS_TOOLCHAIN:$XCODE_TOOLCHAIN"
-	LEN=${#TOOL_PATH}
-	SUBSTR=${PATH:0:$LEN}
-	if [ "$SUBSTR" != "$TOOL_PATH" ]; then
-		export PATH="$TOOL_PATH":"$PATH"
-	fi
+    # And only modify PATH if IOS_TOOLCHAIN is not present
+    TOOL_PATH="$IOS_TOOLCHAIN:$XCODE_TOOLCHAIN"
+    LEN=${#TOOL_PATH}
+    SUBSTR=${PATH:0:$LEN}
+    if [ "$SUBSTR" != "$TOOL_PATH" ]; then
+        export PATH="$TOOL_PATH":"$PATH"
+    fi
 else
-	echo "ERROR: unable to set new PATH."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: unable to set new PATH."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 ########################################
@@ -300,14 +305,14 @@ FOUND_ALL=1
 TOOLS=(clang clang++ libtool ld)
 for tool in ${TOOLS[@]}
 do
-	if [ ! -e "$IOS_TOOLCHAIN/$tool" ] && [ ! -e "$XCODE_TOOLCHAIN/$tool" ]; then
-		echo "ERROR: unable to find $tool at IOS_TOOLCHAIN or XCODE_TOOLCHAIN"
-		FOUND_ALL=0
-	fi
+    if [ ! -e "$IOS_TOOLCHAIN/$tool" ] && [ ! -e "$XCODE_TOOLCHAIN/$tool" ]; then
+        echo "ERROR: unable to find $tool at IOS_TOOLCHAIN or XCODE_TOOLCHAIN"
+        FOUND_ALL=0
+    fi
 done
 
 if [ "$FOUND_ALL" -eq "0" ]; then
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Exports added for Autotools. GNUmakefile-cross does not use them.
@@ -329,4 +334,4 @@ echo "shared object using 'HAS_SOLIB_VERSION=1 make -f GNUmakefile-cross'"
 echo "*******************************************************************************"
 echo
 
-[ "$0" = "$BASH_SOURCE" ] && exit 0 || return 0
+[ "$0" = "${BASH_SOURCE[0]}" ] && exit 0 || return 0
diff --git a/setenv-android-gcc.sh b/setenv-android-gcc.sh
index d49f2000..e115b2df 100755
--- a/setenv-android-gcc.sh
+++ b/setenv-android-gcc.sh
@@ -18,6 +18,11 @@
 
 # set -eu
 
+# Sanity check
+if [ "$0" != "${BASH_SOURCE[0]}" ]; then
+    echo "Please source this setenv script"
+fi
+
 unset IS_CROSS_COMPILE
 
 unset IS_IOS
@@ -39,7 +44,7 @@ unset CPP CC CXX LD AS AR RANLIB STRIP
 # Similar to a "make clean"
 if [ x"${1-}" = "xunset" ]; then
 	echo "Unsetting script variables. PATH may remain tainted"
-	[ "$0" = "$BASH_SOURCE" ] && exit 0 || return 0
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 0 || return 0
 fi
 
 # Set AOSP_TOOLCHAIN_SUFFIX to your preference of tools and STL library.
@@ -71,7 +76,7 @@ if [ -z "${AOSP_API-}" ]; then
 else
 	echo "WARNING: Using AOSP_API has been deprecated. Please use AOSP_API_VERSION instead."
 	echo "If you set for example AOSP_API=android-23 then now instead set AOSP_API_VERSION=23"
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 #####################################################################
@@ -98,7 +103,7 @@ fi
 # Error checking
 if [ ! -d "$ANDROID_NDK_ROOT/toolchains" ]; then
 	echo "ERROR: ANDROID_NDK_ROOT is not a valid path. Please set it."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 #####################################################################
@@ -127,7 +132,7 @@ case "$THE_ARCH" in
 	;;
   hard|armv7a-hard|armeabi-v7a-hard)
 	echo hard, armv7a-hard and armeabi-v7a-hard are not supported, as android uses softfloats
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 	#TOOLCHAIN_ARCH="arm-linux-androideabi"
 	#TOOLCHAIN_NAME="arm-linux-androideabi"
 	#AOSP_ABI="armeabi-v7a"
@@ -178,7 +183,7 @@ case "$THE_ARCH" in
 	;;
   *)
 	echo "ERROR: Unknown architecture $1"
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 	;;
 esac
 
@@ -218,48 +223,48 @@ done
 # Error checking
 if [ -z "$AOSP_TOOLCHAIN_PATH" ] || [ ! -d "$AOSP_TOOLCHAIN_PATH" ]; then
 	echo "ERROR: AOSP_TOOLCHAIN_PATH is not valid. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$CPP" ]; then
 	echo "ERROR: Failed to find Android cpp. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$CC" ]; then
 	echo "ERROR: Failed to find Android gcc. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$CXX" ]; then
 	echo "ERROR: Failed to find Android g++. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$RANLIB" ]; then
 	echo "ERROR: Failed to find Android ranlib. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$AR" ]; then
 	echo "ERROR: Failed to find Android ar. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$AS" ]; then
 	echo "ERROR: Failed to find Android as. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_TOOLCHAIN_PATH/$LD" ]; then
 	echo "ERROR: Failed to find Android ld. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Only modify/export PATH if AOSP_TOOLCHAIN_PATH good
@@ -278,10 +283,10 @@ fi
 # Error checking
 if [ ! -d "$ANDROID_NDK_ROOT/platforms/$AOSP_API" ]; then
 	echo "ERROR: AOSP_API is not valid. Does the NDK support the API? Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 elif [ ! -d "$ANDROID_NDK_ROOT/platforms/$AOSP_API/$AOSP_ARCH" ]; then
 	echo "ERROR: AOSP_ARCH is not valid. Does the NDK support the architecture? Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Android SYSROOT. It will be used on the command line with --sysroot
@@ -328,7 +333,7 @@ case "$THE_STL" in
 	echo WARNING: llvm is still in experimental state and migth not work as expected
 	if [ ! -d "$LLVM_INCLUDE_DIR" ]; then
 		echo "ERROR: Unable to locate include LLVM directory at $LLVM_INCLUDE_DIR -- has it moved since NDK r16beta1?"
-		[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+		[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 	fi
 	AOSP_STL_INC="$LLVM_INCLUDE_DIR"
 	AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/llvm-libc++/libs/$AOSP_ABI/libc++_static.a"
@@ -337,26 +342,26 @@ case "$THE_STL" in
 	echo WARNING: llvm is still in experimental state and migth not work as expected
 	if [ ! -d "$LLVM_INCLUDE_DIR" ]; then
 		echo "ERROR: Unable to locate LLVM include directory at $LLVM_INCLUDE_DIR -- has it moved since NDK r16beta1?"
-		[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+		[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 	fi
 	AOSP_STL_INC="$LLVM_INCLUDE_DIR"
 	AOSP_STL_LIB="$ANDROID_NDK_ROOT/sources/cxx-stl/llvm-libc++/libs/$AOSP_ABI/libc++_shared.so"
 	;;
   *)
 	echo "ERROR: Unknown STL library $2"
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 esac
 
 # Error checking
 if [ ! -d "$AOSP_STL_INC" ] || [ ! -e "$AOSP_STL_INC/memory" ]; then
 	echo "ERROR: AOSP_STL_INC is not valid. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Error checking
 if [ ! -e "$AOSP_STL_LIB" ]; then
 	echo "ERROR: AOSP_STL_LIB is not valid. Please edit this script."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 export AOSP_STL_INC
@@ -372,13 +377,13 @@ fi
 
 if [[ ! -e "$ANDROID_NDK_ROOT/sources/android/cpufeatures/cpu-features.h" ]]; then
 	echo "ERROR: Unable to locate cpu-features.h"
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 cp "$ANDROID_NDK_ROOT/sources/android/cpufeatures/cpu-features.h" .
 
 if [[ ! -e "$ANDROID_NDK_ROOT/sources/android/cpufeatures/cpu-features.c" ]]; then
 	echo "ERROR: Unable to locate cpu-features.c"
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+	[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 cp "$ANDROID_NDK_ROOT/sources/android/cpufeatures/cpu-features.c" .
 
@@ -446,4 +451,4 @@ echo "shared object using 'HAS_SOLIB_VERSION=1 make -f GNUmakefile-cross'"
 echo "*******************************************************************************"
 echo
 
-[ "$0" = "$BASH_SOURCE" ] && exit 0 || return 0
+[ "$0" = "${BASH_SOURCE[0]}" ] && exit 0 || return 0
diff --git a/setenv-embedded.sh b/setenv-embedded.sh
index 7e743ab8..d785574f 100755
--- a/setenv-embedded.sh
+++ b/setenv-embedded.sh
@@ -15,6 +15,11 @@
 
 # set -eu
 
+# Sanity check
+if [ "$0" != "${BASH_SOURCE[0]}" ]; then
+    echo "Please source this setenv script"
+fi
+
 # Unset old options
 
 unset IS_CROSS_COMPILE
@@ -24,12 +29,12 @@ unset IS_ANDROID
 unset IS_ARM_EMBEDDED
 
 if [ -z "${ARM_EMBEDDED_TOOLCHAIN-}" ]; then
-	ARM_EMBEDDED_TOOLCHAIN="/usr/bin"
+    ARM_EMBEDDED_TOOLCHAIN="/usr/bin"
 fi
 
 if [ ! -d "$ARM_EMBEDDED_TOOLCHAIN" ]; then
-	echo "ARM_EMBEDDED_TOOLCHAIN is not valid"
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ARM_EMBEDDED_TOOLCHAIN is not valid"
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Fedora
@@ -50,37 +55,37 @@ export RANLIB="$ARM_EMBEDDED_TOOLCHAIN/$TOOL_PREFIX-ranlib"
 # Test a few of the tools
 if [ ! -e "$CPP" ]; then
   echo "ERROR: CPP is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 if [ ! -e "$CC" ]; then
   echo "ERROR: CC is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 if [ ! -e "$CXX" ]; then
   echo "ERROR: CXX is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 if [ ! -e "$AR" ]; then
   echo "ERROR: AR is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 if [ ! -e "$AS" ]; then
   echo "ERROR: AS is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 if [ ! -e "$RANLIB" ]; then
   echo "ERROR: RANLIB is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 if [ ! -e "$LD" ]; then
   echo "ERROR: LD is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # The Crypto++ Makefile uses these to disable host settings like
@@ -94,7 +99,7 @@ fi
 
 if [ ! -d "$ARM_EMBEDDED_SYSROOT" ]; then
   echo "ERROR: ARM_EMBEDDED_SYSROOT is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Fix C++ header paths for Ubuntu
@@ -104,12 +109,12 @@ ARM_EMBEDDED_CXX_HEADERS="$ARM_EMBEDDED_SYSROOT/include/c++/$ARM_EMBEDDED_TOOLCH
 
 if [ ! -d "$ARM_EMBEDDED_CXX_HEADERS" ]; then
   echo "ERROR: ARM_EMBEDDED_CXX_HEADERS is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 if [ ! -d "$ARM_EMBEDDED_CXX_HEADERS/arm-linux-gnueabi" ]; then
   echo "ERROR: ARM_EMBEDDED_CXX_HEADERS is not valid"
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Finally, the flags...
@@ -142,4 +147,4 @@ echo "shared object using 'HAS_SOLIB_VERSION=1 make -f GNUmakefile-cross'"
 echo "*******************************************************************************"
 echo
 
-[ "$0" = "$BASH_SOURCE" ] && exit 0 || return 0
+[ "$0" = "${BASH_SOURCE[0]}" ] && exit 0 || return 0
diff --git a/setenv-ios.sh b/setenv-ios.sh
index efd6a8b5..577ad055 100755
--- a/setenv-ios.sh
+++ b/setenv-ios.sh
@@ -13,6 +13,11 @@
 
 # set -eu
 
+# Sanity check
+if [ "$0" != "${BASH_SOURCE[0]}" ]; then
+    echo "Please source this setenv script"
+fi
+
 #########################################
 #####       Clear old options       #####
 #########################################
@@ -131,12 +136,12 @@ done
 # Defaults if not set
 if [ -z "$APPLE_SDK" ]; then
     BACK_ARCH=armv7
-	APPLE_SDK=iPhoneOS
+    APPLE_SDK=iPhoneOS
 fi
 
 # Defaults if not set
 if [ -z "$IOS_ARCH" ]; then
-	IOS_ARCH="$BACK_ARCH"
+    IOS_ARCH="$BACK_ARCH"
 fi
 
 # Allow a user override? I think we should be doing this. The use case is:
@@ -149,7 +154,7 @@ fi
 
 if [ ! -d "$XCODE_DEVELOPER" ]; then
   echo "ERROR: unable to find XCODE_DEVELOPER directory."
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Default toolchain location
@@ -157,7 +162,7 @@ XCODE_TOOLCHAIN="$XCODE_DEVELOPER/usr/bin"
 
 if [ ! -d "$XCODE_TOOLCHAIN" ]; then
   echo "ERROR: unable to find XCODE_TOOLCHAIN directory."
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # XCODE_DEVELOPER_TOP is the top of the development tools tree
@@ -165,7 +170,7 @@ XCODE_DEVELOPER_TOP="$XCODE_DEVELOPER/Platforms/$APPLE_SDK.platform/Developer"
 
 if [ ! -d "$XCODE_DEVELOPER_TOP" ]; then
   echo "ERROR: unable to find XCODE_DEVELOPER_TOP directory."
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # IOS_TOOLCHAIN is the location of the actual compiler tools.
@@ -177,7 +182,7 @@ fi
 
 if [ -z "$IOS_TOOLCHAIN" ] || [ ! -d "$IOS_TOOLCHAIN" ]; then
   echo "ERROR: unable to find Xcode cross-compiler tools."
-  [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+  [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 #
@@ -187,16 +192,16 @@ fi
 unset XCODE_SDK
 for i in $(seq -f "%.1f" 20.0 -0.1 1.0)
 do
-	if [ -d "$XCODE_DEVELOPER/Platforms/$APPLE_SDK.platform/Developer/SDKs/$APPLE_SDK$i.sdk" ]; then
-    	XCODE_SDK="$APPLE_SDK$i.sdk"
-      	break
-	fi
+    if [ -d "$XCODE_DEVELOPER/Platforms/$APPLE_SDK.platform/Developer/SDKs/$APPLE_SDK$i.sdk" ]; then
+        XCODE_SDK="$APPLE_SDK$i.sdk"
+          break
+    fi
 done
 
 # Error checking
 if [ -z "$XCODE_SDK" ]; then
     echo "ERROR: unable to find a SDK."
-    [ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # https://github.com/weidai11/cryptopp/issues/635
@@ -276,16 +281,16 @@ fi
 # Only modify/export PATH if IOS_TOOLCHAIN good
 if [ ! -z "$IOS_TOOLCHAIN" ] && [ ! -z "$XCODE_TOOLCHAIN" ]; then
 
-	# And only modify PATH if IOS_TOOLCHAIN is not present
-	TOOL_PATH="$IOS_TOOLCHAIN:$XCODE_TOOLCHAIN"
-	LEN=${#TOOL_PATH}
-	SUBSTR=${PATH:0:$LEN}
-	if [ "$SUBSTR" != "$TOOL_PATH" ]; then
-		export PATH="$TOOL_PATH":"$PATH"
-	fi
+    # And only modify PATH if IOS_TOOLCHAIN is not present
+    TOOL_PATH="$IOS_TOOLCHAIN:$XCODE_TOOLCHAIN"
+    LEN=${#TOOL_PATH}
+    SUBSTR=${PATH:0:$LEN}
+    if [ "$SUBSTR" != "$TOOL_PATH" ]; then
+        export PATH="$TOOL_PATH":"$PATH"
+    fi
 else
-	echo "ERROR: unable to set new PATH."
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    echo "ERROR: unable to set new PATH."
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 ########################################
@@ -300,14 +305,14 @@ FOUND_ALL=1
 TOOLS=(clang clang++ libtool ld)
 for tool in ${TOOLS[@]}
 do
-	if [ ! -e "$IOS_TOOLCHAIN/$tool" ] && [ ! -e "$XCODE_TOOLCHAIN/$tool" ]; then
-		echo "ERROR: unable to find $tool at IOS_TOOLCHAIN or XCODE_TOOLCHAIN"
-		FOUND_ALL=0
-	fi
+    if [ ! -e "$IOS_TOOLCHAIN/$tool" ] && [ ! -e "$XCODE_TOOLCHAIN/$tool" ]; then
+        echo "ERROR: unable to find $tool at IOS_TOOLCHAIN or XCODE_TOOLCHAIN"
+        FOUND_ALL=0
+    fi
 done
 
 if [ "$FOUND_ALL" -eq "0" ]; then
-	[ "$0" = "$BASH_SOURCE" ] && exit 1 || return 1
+    [ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
 fi
 
 # Exports added for Autotools. GNUmakefile-cross does not use them.
@@ -329,4 +334,4 @@ echo "shared object using 'HAS_SOLIB_VERSION=1 make -f GNUmakefile-cross'"
 echo "*******************************************************************************"
 echo
 
-[ "$0" = "$BASH_SOURCE" ] && exit 0 || return 0
+[ "$0" = "${BASH_SOURCE[0]}" ] && exit 0 || return 0