build: re-add missing CPPFLAGS for libiptc

These got lost on commit v1.4.11-12-g5c8f5b6.

Note: When /usr/include/libiptc/libiptc.h exists, this error is
masked away :-/  (IMO, #include-with-quotes "foo.h" should not
search system dirs...)

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>

diff --git a/libiptc/Makefile.am b/libiptc/Makefile.am
index a7d0ea268c2e67d86a20ca8886576497ff5d9a59..22c920f6605f677139a6f7894785b4acf9dafe01 100644 (file)
--- a/libiptc/Makefile.am
+++ b/libiptc/Makefile.am
@@ -1,5 +1,8 @@
 # -*- Makefile -*-
 
+AM_CFLAGS        = ${regular_CFLAGS}
+AM_CPPFLAGS      = ${regular_CPPFLAGS} -I${top_builddir}/include -I${top_srcdir}/include ${kinclude_CPPFLAGS}
+
 pkgconfig_DATA      = libiptc.pc
 
 lib_LTLIBRARIES     = libip4tc.la libip6tc.la libiptc.la