Build: Fix underquoted AC_LANG_SOURCE.

It made no practical difference in this case.

(cherry picked from commit f3c32762ae309afa2fe330e7fb397acfdedc4d37)

diff --git a/configure.ac b/configure.ac
index 9dfe80987afd8687e83b00b7a7e85f647c5a7d9d..e2c040706ee8a5783be74aee4d64706a4aa35885 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -941,7 +941,7 @@ AS_IF([test "$GCC" = yes], [
                OLD_CFLAGS="$CFLAGS"
                CFLAGS="$CFLAGS $NEW_FLAG -Werror"
                AC_COMPILE_IFELSE([AC_LANG_SOURCE(
-                               [void foo(void); void foo(void) { }])], [
+                               [[void foo(void); void foo(void) { }]])], [
                        AM_CFLAGS="$AM_CFLAGS $NEW_FLAG"
                        AC_MSG_RESULT([yes])
                ], [