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let the preprocessor work its magic rather than executing the code
https://bugs.gentoo.org/432120
--- a/Configure
+++ b/Configure
@@ -2730,20 +2730,17 @@ LOCKF_OWNER4
rm -f ${LSOF_TMPC}.*
cat > $LSOF_TMPC.c << .LSOF_END_HERE_DOC1
#include <features.h>
-main() {
+#undef XXX
#if defined(__GLIBC__) && defined(__GLIBC_MINOR__)
-printf("-DGLIBCV=%d\n",__GLIBC__*100+__GLIBC_MINOR__);
+XXX: __GLIBC__ * 100 + __GLIBC_MINOR__
#elif defined(__GLIBC__)
-printf("-DGLIBCV=%d00\n",__GLIBC__);
-#else
-printf("\n");
+XXX: __GLIBC__ * 100
#endif
-return(0); }
.LSOF_END_HERE_DOC1
- $LINUX_CONF_CC ${LSOF_TMPC}.c -I$LSOF_INCLUDE -o ${LSOF_TMPC}.x > /dev/null 2>&1
+ $LINUX_CONF_CC ${LSOF_TMPC}.c -E -I$LSOF_INCLUDE 2>/dev/null | sed -n '/^XXX:/s|.*:||p' > ${LSOF_TMPC}.x
- if test -x ${LSOF_TMPC}.x # {
+ if test -s ${LSOF_TMPC}.x # {
then
- LINUX_CLIB=`${LSOF_TMPC}.x`
+ LINUX_CLIB="-DGLIBCV=$(( `cat ${LSOF_TMPC}.x` ))"
LSOF_TMP=$?
else
LINUX_CLIB=""
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