net/fort: don't depend on gcc10, fix version check

The current version of FORT builds fine with any c11 compiler.  There is
no need for USE_GCC.

Patch the build system to correctly define the version of FORT as seen
in the output of "fort --version" and the "User-Agent:" HTTP header. [1]

Approved by:	Toni Yannick Kalombo <toni@devboks.com> (maintainer)
Reported by:	Mark Tinka <mark@tinka.africa> [1]

(cherry picked from commit 9604608f8a)

net/fort/Makefile

@@ -1,5 +1,6 @@
 PORTNAME=	fort
 DISTVERSION=	1.5.2
+PORTREVISION=	1
 CATEGORIES=	net
 
 MAINTAINER=	toni@devboks.com
@@ -12,8 +13,7 @@ LIB_DEPENDS=	libcurl.so:ftp/curl libjansson.so:devel/jansson \
 		libxml2.so:textproc/libxml2
 RUN_DEPENDS=	${LOCALBASE}/bin/rsync:net/rsync
 
-USES=		autoreconf pkgconfig ssl
-USE_GCC=	yes
+USES=		autoreconf compiler:c11 pkgconfig ssl
 USE_GITHUB=	yes
 USE_RC_SUBR=	fort
 
@@ -25,6 +25,8 @@ GNU_CONFIGURE=	yes
 SUB_FILES=	pkg-message
 
 post-patch:
+	@${REINPLACE_CMD} -e "s|%%DISTVERSION%%|${DISTVERSION}|" \
+		${WRKSRC}/configure.ac
 	@${REINPLACE_CMD} -e "s|/tmp/fort|${ETCDIR}|" \
 		${WRKSRC}/examples/config.json
 	@${REINPLACE_CMD} -e "s|/usr/local/ssl|/etc/ssl|" \

net/fort/files/patch-configure.ac

@@ -0,0 +1,11 @@
+--- configure.ac.orig	2021-10-19 22:44:35 UTC
++++ configure.ac
+@@ -2,7 +2,7 @@
+ # Process this file with autoconf to produce a configure script.
+ 
+ AC_PREREQ([2.69])
+-AC_INIT([fort], [m4_esyscmd_s([git describe --dirty --always --tags])],
++AC_INIT([fort], [%%DISTVERSION%%],
+ 	[fort-validator@nic.mx])
+ AC_CONFIG_SRCDIR([src/main.c])
+ AM_INIT_AUTOMAKE([subdir-objects])