Avoid (some) ppc cross-compilation problems
[..snip..]
A recent kvm merge with qemu brought code for 64bit power that broke cross
compilation. The issue is caused by configure trying to execute target
architecture binaries where configure is executed.
[..snip..]
The patch is based on Hollis's Blanchard idea.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5364 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/configure b/configure
index 3859bc6..a224e6a 100755
--- a/configure
+++ b/configure
@@ -15,6 +15,7 @@
TMPO="${TMPDIR1}/qemu-conf-${RANDOM}-$$-${RANDOM}.o"
TMPE="${TMPDIR1}/qemu-conf-${RANDOM}-$$-${RANDOM}"
TMPS="${TMPDIR1}/qemu-conf-${RANDOM}-$$-${RANDOM}.S"
+TMPI="${TMPDIR1}/qemu-conf-${RANDOM}-$$-${RANDOM}.i"
# default parameters
prefix=""
@@ -673,17 +674,8 @@
# ppc specific hostlongbits selection
if test "$cpu" = "powerpc" ; then
- cat > $TMPC <<EOF
-int main(void){return sizeof(long);}
-EOF
-
- if $cc $ARCH_CFLAGS -o $TMPE $TMPC 2> /dev/null; then
- $TMPE
- case $? in
- 4) hostlongbits="32";;
- 8) hostlongbits="64";;
- *) echo "Couldn't determine bits per long value"; exit 1;;
- esac
+ if $cc $ARCH_CFLAGS -dM -E - -o $TMPI 2>/dev/null </dev/null; then
+ grep -q __powerpc64__ $TMPI && hostlongbits=64
else
echo hostlongbits test failed
exit 1
@@ -1604,4 +1596,4 @@
done
fi
-rm -f $TMPO $TMPC $TMPE $TMPS
+rm -f $TMPO $TMPC $TMPE $TMPS $TMPI
