-ansi -pednatic breaks various configure tests. autoconf already says
not to use -Werror but any -W* is dangerous for configure itself.
--- a/configure.in
+++ b/configure.in
@@ -4,7 +4,7 @@ dnl AM_INIT_AUTOMAKE
 
 AC_CONFIG_SRCDIR(src/libcuecue/cuecue.c)
 
-CFLAGS="$CFLAGS -Wall -ansi -pedantic -g -Os"
+CFLAGS="-Wall -O2 ${CFLAGS}"
 VERSION=0.2.2
 
 PACKAGE="cuecue"