mksysinfo: Only define PathMax if PATH_MAX is defined.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_7-branch@186779 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/libgo/mksysinfo.sh b/libgo/mksysinfo.sh
index 487965b..4f51533 100755 (executable)
--- a/libgo/mksysinfo.sh
+++ b/libgo/mksysinfo.sh
@@ -275,8 +275,9 @@ grep '^const __PC' gen-sysinfo.go |
   sed -e 's/^\(const \)__\(PC[^= ]*\)\(.*\)$/\1\2 = __\2/' >> ${OUT}
 
 # The PATH_MAX constant.
   sed -e 's/^\(const \)__\(PC[^= ]*\)\(.*\)$/\1\2 = __\2/' >> ${OUT}
 
 # The PATH_MAX constant.

-grep '^const _PATH_MAX ' gen-sysinfo.go |
+if grep '^const _PATH_MAX ' gen-sysinfo.go >/dev/null 2>&1; then

   echo 'const PathMax = _PATH_MAX' >> ${OUT}
   echo 'const PathMax = _PATH_MAX' >> ${OUT}

+fi

 
 # epoll constants.
 grep '^const _EPOLL' gen-sysinfo.go |
 
 # epoll constants.
 grep '^const _EPOLL' gen-sysinfo.go |