Updating autoconf

Nexarian · Nov 27, 2023 · 7ea116c · 7ea116c
1 parent e3be992
commit 7ea116c
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/configure.ac b/configure.ac
@@ -12,7 +12,10 @@ AC_SUBST([package_version_patchlevel], [${package_version_patchlevel}])
 AC_CONFIG_HEADERS(config_ac.h:config_ac-h.in)
 AM_INIT_AUTOMAKE([1.11 foreign parallel-tests])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
-AC_PROG_CC_C99
+m4_warn([obsolete],
+[AC_PROG_CC_C99 is obsolete; use AC_PROG_CC
+])dnl
+AC_REQUIRE(AC_PROG_CC)
 AC_C_CONST
 LT_INIT