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fix invalid C in new trycppif tests in configure script

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an empty program is not valid and would be reasonable grounds for the
compiler to give an error, which would break these tests.
This commit is contained in:
Rich Felker 2013-07-18 20:37:19 -04:00
parent 3e7f186ea1
commit df065781ee
1 changed files with 2 additions and 1 deletions
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3
configure vendored
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@ -56,7 +56,8 @@ while eval "fnmatch '*/' \"\${$1}\"" ; do eval "$1=\${$1%/}" ; done
trycppif () {
printf "checking preprocessor condition %s... " "$1"
echo "#if $1" > "$tmpc"
echo "typedef int x;" > "$tmpc"
echo "#if $1" >> "$tmpc"
echo "#error yes" >> "$tmpc"
echo "#endif" >> "$tmpc"
if $CC $2 -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then