Use the correct macro to make automake happy.

Reported by <bsdfan666@cyberdude.com>.
vor 16 Jahren · 7708f42ebc
--- a/configure.ac
+++ b/configure.ac
@@ -5,7 +5,7 @@ AM_INIT_AUTOMAKE([foreign subdir-objects])
 AC_CONFIG_FILES([Makefile])

 AC_PROG_CC
 AC_PROG_CC_C_O
 AM_PROG_CC_C_O
 AC_PROG_RANLIB
 AC_USE_SYSTEM_EXTENSIONS