net-p2p/c-lightning: fix build on GCC architectures

Needs C11 compiler:
cc1: error: unrecognized command line option "-std=gnu11"

Needs include sys/types.h in fdpass.c:
ccan/ccan/fdpass/fdpass.c: In function 'fdpass_send':
ccan/ccan/fdpass/fdpass.c:16:12: error: 'register_t' undeclared (first use in this function)
   16 |   char buf[CMSG_SPACE(sizeof(fd))];
      |            ^~~~~~~~~~

PR:		243481
Approved by:	vd (maintainer)
MFH:		2020Q1 (fix build blanket)

net-p2p/c-lightning/Makefile

@@ -22,7 +22,8 @@ LIB_DEPENDS=	libgmp.so:math/gmp \
 		libsqlite3.so:databases/sqlite3
 RUN_DEPENDS=	bitcoin-cli:net-p2p/bitcoin-utils
 
-USES=		autoreconf:build gettext gmake libtool python:3.5+,build
+USES=		autoreconf:build compiler:c11 gettext gmake libtool \
+		python:3.5+,build
 BINARY_ALIAS=	python=${PYTHON_CMD} python3=${PYTHON_CMD}
 ALL_TARGET=	default
 

net-p2p/c-lightning/files/patch-ccan_ccan_fdpass_fdpass.c

@@ -0,0 +1,10 @@
+--- ccan/ccan/fdpass/fdpass.c.orig	2020-01-20 22:03:36 UTC
++++ ccan/ccan/fdpass/fdpass.c
+@@ -1,6 +1,7 @@
+ /* CC0 license (public domain) - see LICENSE file for details */
+ #include <ccan/fdpass/fdpass.h>
+ #include <sys/socket.h>
++#include <sys/types.h>
+ #include <errno.h>
+ #include <string.h>
+