[PATCH] Fix two compile errors during out-of-tree build

[PATCH] Fix two compile errors during out-of-tree build

[Keno Fischer]

The first:
```
iptables/extensions/libebt_limit.c:21:26: fatal error: iptables/nft.h: No such file or directory
 #include "iptables/nft.h"
```

The second:
```
/data/keno/sandbox/iptables/iptables/xtables-config-parser.y:19:32: fatal error: libiptc/linux_list.h: No such file or directory
 #include <libiptc/linux_list.h>
                                ^
```

Simply fixed by adding the relevant `-I` directives.

Signed-off-by: Keno Fischer <keno@juliacomputing.com>
---
 extensions/GNUmakefile.in | 2 +-
 iptables/Makefile.am      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/extensions/GNUmakefile.in b/extensions/GNUmakefile.in
index 33b06ef..b7a8a83 100644
--- a/extensions/GNUmakefile.in
+++ b/extensions/GNUmakefile.in
@@ -22,7 +22,7 @@ regular_CPPFLAGS   = @regular_CPPFLAGS@
 kinclude_CPPFLAGS  = @kinclude_CPPFLAGS@
 
 AM_CFLAGS       = ${regular_CFLAGS}
-AM_CPPFLAGS     = ${regular_CPPFLAGS} -I${top_builddir}/include -I${top_builddir} -I${top_srcdir}/include ${kinclude_CPPFLAGS} ${CPPFLAGS} @libnetfilter_conntrack_CFLAGS@ @libnftnl_CFLAGS@
+AM_CPPFLAGS     = ${regular_CPPFLAGS} -I${top_builddir}/include -I${top_builddir} -I${top_srcdir}/include -I${top_srcdir} ${kinclude_CPPFLAGS} ${CPPFLAGS} @libnetfilter_conntrack_CFLAGS@ @libnftnl_CFLAGS@
 AM_DEPFLAGS     = -Wp,-MMD,$(@D)/.$(@F).d,-MT,$@
 AM_LDFLAGS      = @noundef_LDFLAGS@
 
diff --git a/iptables/Makefile.am b/iptables/Makefile.am
index 569a739..f92cc4f 100644
--- a/iptables/Makefile.am
+++ b/iptables/Makefile.am
@@ -1,7 +1,7 @@
 # -*- Makefile -*-
 
 AM_CFLAGS        = ${regular_CFLAGS}
-AM_CPPFLAGS      = ${regular_CPPFLAGS} -I${top_builddir}/include -I${top_srcdir}/include ${kinclude_CPPFLAGS} ${libmnl_CFLAGS} ${libnftnl_CFLAGS} ${libnetfilter_conntrack_CFLAGS}
+AM_CPPFLAGS      = ${regular_CPPFLAGS} -I${top_builddir}/include -I${top_srcdir}/include -I${top_srcdir} ${kinclude_CPPFLAGS} ${libmnl_CFLAGS} ${libnftnl_CFLAGS} ${libnetfilter_conntrack_CFLAGS}
 AM_YFLAGS = -d
 
 BUILT_SOURCES =
-- 
2.9.3