https://bugs.gentoo.org/923618 --- a/m4/regex.m4 +++ b/m4/regex.m4 @@ -34,6 +34,7 @@ AC_DEFUN([gl_INCLUDED_REGEX], jm_cv_func_working_re_compile_pattern, AC_TRY_RUN( [#include <stdio.h> +#include <stdlib.h> #include <string.h> #include <regex.h> int