Import warnings.m4 from gnulib
* m4/warnings.m4: Replace with warnings.m4 from gnulib.
* configure.ac: Use gl_WARN_ADD from new warnings.m4.
* Makefile.am (AM_CFLAGS): Update for new warnings.m4.
diff --git a/Makefile.am b/Makefile.am
index 53fb0ad..3234502 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -10,8 +10,8 @@
ARCH = @arch@
ACLOCAL_AMFLAGS = -I m4
-AM_CFLAGS = $(WARNFLAGS)
-INCLUDES = -I$(srcdir)/$(OS)/$(ARCH) -I$(srcdir)/$(OS)
+AM_CFLAGS = $(WARN_CFLAGS)
+AM_CPPFLAGS = -I$(srcdir)/$(OS)/$(ARCH) -I$(srcdir)/$(OS)
strace_SOURCES = strace.c syscall.c count.c util.c desc.c file.c ipc.c \
io.c ioctl.c mem.c net.c process.c bjm.c quota.c \