qt5base-lts/config.tests/unix/endian.test

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#!/bin/sh
QMKSPEC=$1
VERBOSE=$2
SRCDIR=$3
OUTDIR=$4
# debuggery
[ "$VERBOSE" = "yes" ] && echo "Determining machine byte-order... ($*)"
# build and run a test program
test -d "$OUTDIR/config.tests/unix/endian" || mkdir -p "$OUTDIR/config.tests/unix/endian"
"$OUTDIR/bin/qmake" -nocache -spec "$QMKSPEC" "QT_BUILD_TREE=$OUTDIR" "$SRCDIR/config.tests/unix/endian/endiantest.pro" -o "$OUTDIR/config.tests/unix/endian/Makefile" >/dev/null 2>&1
cd "$OUTDIR/config.tests/unix/endian"
ENDIAN="UNKNOWN"
[ "$VERBOSE" = "yes" ] && $MAKE || $MAKE >/dev/null 2>&1
if [ -f ./endiantest.exe ]; then
binary=./endiantest.exe
else
binary=./endiantest
fi
if [ -f $binary ]; then
: # nop
else
[ "$VERBOSE" = "yes" ] && echo "Unknown byte order!"
exit 2
fi
if strings - $binary | grep LeastSignificantByteFirst >/dev/null 2>&1; then
[ "$VERBOSE" = "yes" ] && echo " Found 'LeastSignificantByteFirst' in binary"
ENDIAN="LITTLE"
elif strings - $binary | grep MostSignificantByteFirst >/dev/null 2>&1; then
[ "$VERBOSE" = "yes" ] && echo " Found 'MostSignificantByteFirst' in binary"
ENDIAN="BIG"
fi
# make clean as this tests is compiled for both the host and the target
$MAKE distclean
# done
if [ "$ENDIAN" = "LITTLE" ]; then
[ "$VERBOSE" = "yes" ] && echo "Using little endian."
exit 0
elif [ "$ENDIAN" = "BIG" ]; then
[ "$VERBOSE" = "yes" ] && echo "Using big endian."
exit 1
else
[ "$VERBOSE" = "yes" ] && echo "Unknown byte order!"
exit 2
fi