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fix invalid C in new trycppif tests in configure script

an empty program is not valid and would be reasonable grounds for the
compiler to give an error, which would break these tests.
Rich Felker 11 жил өмнө
parent
commit
df065781ee
1 өөрчлөгдсөн 2 нэмэгдсэн , 1 устгасан
  1. 2 1
      configure

+ 2 - 1
configure

@@ -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