MFH: r521828

Attempt to fix build after removal of Linux c6.

- Replace build dependency on linux-c7-devtools with
  USE_LINUX=devtools:build so it takes into account LINUX_DEFAULT.
- Install libusb.so.3 which is the SONAME of the library.
- Disable -Werror.
- Don't build profiling library.  It's not installed and -pg and
  -fstack-protector are incompatible.
- Don't let the build make parse /etc/make.conf because this may redefine
  *FLAGS.  The file is already handled by the ports tree.
- Create symbolic links instead of hard links.

devel/linux_libusb/Makefile

@@ -3,27 +3,30 @@
 
 PORTNAME=	linux_libusb
 PORTVERSION=	11.0r${FSVN_REV}
-PORTREVISION=	3
+PORTREVISION=	4
 CATEGORIES=	devel linux
 MASTER_SITES=	LOCAL/nox
 
 MAINTAINER=	emulation@FreeBSD.org
 COMMENT=	Linux-compatibility libusb
 
-BUILD_DEPENDS=	${LINUXBASE}/usr/bin/gcc:devel/linux-c7-devtools
-
-USES=		tar:bzip2
+USES=		linux tar:bzip2
 ONLY_FOR_ARCHS=	i386 amd64
 USE_LDCONFIG=	yes
+USE_LINUX=	devtools:build
 USE_LINUX_PREFIX=	yes
 PLIST_FILES=		usr/lib/libusb.so	\
+			usr/lib/libusb.so.3	\
 			usr/lib/libusb-0.1.so.4
 CC=		${LINUXBASE}/usr/bin/gcc
 CFLAGS+=	-I${WRKDIR}/sys
 SSP_CFLAGS?=	-fstack-protector # XXX -strong isn't supported by GCC < 4.9
 MAKE_ARGS+=	LIBUSB_GLOBAL_INCLUDE_FILE=libusb_global_linux.h
 MAKE_ARGS+=	PTHREAD_LIBS="-lpthread -lrt"
+MAKE_ARGS+=	NO_WERROR=yes
+MAKE_ARGS+=	WITHOUT_PROFILE=yes
 MAKE_ARGS+=	WITHOUT_SSP=yes
+MAKE_ARGS+=	__MAKE_CONF=""
 # XXX ${LINUXBASE}/usr/bin/ld is a broken link with gentoo atm?
 #MAKE_ENV+=	COMPILER_PATH=/usr/i486-pc-linux-gnu/binutils-bin/2.22
 
@@ -56,14 +59,12 @@ post-patch:
 	${MKDIR} ${WRKDIR}/sys
 	${LN} -s ${SRC_BASE}/sys/compat ${SRC_BASE}/sys/dev ${WRKDIR}/sys
 
-# XXX: Due to problems with ports/ infrastructure, we don't seem to be able
-# to symlink files. I provide hardlink instead. If fixed, remember to remove
-# link name from PLIST_FILES.
 do-install:
 	${MKDIR} ${STAGEDIR}${PREFIX}/usr/lib
-	${INSTALL_DATA} ${WRKSRC}/libusb.so ${STAGEDIR}${PREFIX}/usr/lib
+	${INSTALL_LIB} ${WRKSRC}/libusb.so.3 ${STAGEDIR}${PREFIX}/usr/lib
+	${LN} -s libusb.so.3 ${STAGEDIR}${PREFIX}/usr/lib/libusb.so
 # Xilinx ISE requirement.
-	${LN} -f ${STAGEDIR}${PREFIX}/usr/lib/libusb.so ${STAGEDIR}${PREFIX}/usr/lib/libusb-0.1.so.4
+	${LN} -s libusb.so.3 ${STAGEDIR}${PREFIX}/usr/lib/libusb-0.1.so.4
 
 .if defined(BOOTSTRAP) || defined(SVN_FETCH)
 #FETCH_DEPENDS+=		svn:devel/subversion