Fix configure error in testing for POSIX regex.

gwsw · Jan 2, 2022 · d575033 · d575033
1 parent db20b9e
commit d575033
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/configure.ac b/configure.ac
@@ -426,9 +426,10 @@ if test $WANT_REGEX = auto -o $WANT_REGEX = posix; then
 # So we run a test program.  If we're cross-compiling, do it the old way.
 AC_MSG_CHECKING(for POSIX regcomp)
 AC_TRY_RUN([
+#include <stdlib.h>
 #include <sys/types.h>
 #include <regex.h>
-main() { regex_t r; regmatch_t rm; char *text = "xabcy";
+int main() { regex_t r; regmatch_t rm; char *text = "xabcy";
 if (regcomp(&r, "abc", 0)) exit(1);
 if (regexec(&r, text, 1, &rm, 0)) exit(1);
 #ifndef __WATCOMC__