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cygwin: work around GCC 5 preprocessor changes

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GCC 5 adds #line directives (and hence extra newlines) for macros
expansions, which confuses cygmagic.  Using the -P flag avoids
them entirely.

https://cygwin.com/ml/cygwin-patches/2016-q1/msg00016.html

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
This commit is contained in:
Yaakov Selkowitz 2016-02-12 16:02:13 -06:00 committed by Corinna Vinschen
parent 919137b3d8
commit ef64aa4940
1 changed files with 1 additions and 1 deletions
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winsup/cygwin/cygmagic
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@ -24,7 +24,7 @@ sumit() {
while [ -n "$1" ]; do while [ -n "$1" ]; do
define=$1; shift define=$1; shift
struct=$1; shift struct=$1; shift
sum=`$gcc -D__CYGMAGIC__ -E $file | sed -n "/^$struct/,/^};/p" | sed -e 's/[ ]//g' -e '/^$/d' | sumit | awk '{printf "0x%xU", $1}'` sum=`$gcc -D__CYGMAGIC__ -E -P $file | sed -n "/^$struct/,/^};/p" | sed -e 's/[ ]//g' -e '/^$/d' | sumit | awk '{printf "0x%xU", $1}'`
echo "#define $define $sum" echo "#define $define $sum"
curr=`sed -n "s/^#[ ]*define CURR_$define[ ][ ]*\([^ ][^ ]*\)/\1/p" $file` curr=`sed -n "s/^#[ ]*define CURR_$define[ ][ ]*\([^ ][^ ]*\)/\1/p" $file`
[ "$curr" != "$sum" ] && echo "*** WARNING WARNING WARNING WARNING WARNING *** [ "$curr" != "$sum" ] && echo "*** WARNING WARNING WARNING WARNING WARNING ***