Remove -Werror

Index: src/Makefile.in
--- src/Makefile.in.orig
+++ src/Makefile.in
@@ -258,7 +258,7 @@ target_alias = @target_alias@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
-AM_CPPFLAGS = -I$(top_srcdir)/include -Wall -Werror -Wextra
+AM_CPPFLAGS = -I$(top_srcdir)/include -Wall -Wextra
 hexcurse_SOURCES = file.c llist.c screen.c hexcurse.c stack.c getopt.c acceptch.c color.c
 all: all-am
 
