Index: head/graphics/libdrm/Makefile
===================================================================
--- head/graphics/libdrm/Makefile	(revision 400651)
+++ head/graphics/libdrm/Makefile	(revision 400652)
@@ -1,67 +1,74 @@
 # Created by: lesi@FreeBSD.org
 # $FreeBSD$
 
 PORTNAME=	libdrm
 PORTVERSION=	2.4.65
+PORTREVISION=	1
 PORTEPOCH=	1
 CATEGORIES=	graphics x11
 MASTER_SITES=	http://dri.freedesktop.org/libdrm/
 
 MAINTAINER=	x11@FreeBSD.org
 COMMENT=	Userspace interface to kernel Direct Rendering Module services
 
 LIB_DEPENDS=	libpciaccess.so:${PORTSDIR}/devel/libpciaccess \
 		libpthread-stubs.so:${PORTSDIR}/devel/libpthread-stubs
 
 USES=		libtool pkgconfig tar:bzip2
 GNU_CONFIGURE=	yes
 USE_LDCONFIG=	yes
 INSTALL_TARGET=	install-strip
 
 OPTIONS_DEFINE=	MANPAGES
 
 .if defined(PACKAGE_BUILDING)
 OPTIONS_DEFAULT+=	MANPAGES
 .endif
 
 USES+=		gmake
 
 .include <bsd.port.options.mk>
 
 # KMS support in the kernel is only build on these archs, disable others
 .if ${ARCH} == "amd64" || ${ARCH} == "i386"
 CONFIGURE_ARGS+=--enable-libkms
 PLIST_SUB+=	KMS="" NOUVEAU=""
 .else
 CONFIGURE_ARGS+=--disable-libkms
 PLIST_SUB+=	KMS="@comment " NOUVEAU="@comment "
 .endif
 
 .if ${PORT_OPTIONS:MMANPAGES}
 BUILD_DEPENDS+=	${LOCALBASE}/share/xsl/docbook/manpages/docbook.xsl:${PORTSDIR}/textproc/docbook-xsl
 USE_GNOME+=	libxslt:build
 PLIST_SUB+=	MAN=""
 .else
 CONFIGURE_ARGS+=--disable-manpages
 PLIST_SUB+=	MAN="@comment "
 .endif
 
 CONFIGURE_ARGS+=--disable-vmwgfx
 
 .if ${ARCH} == amd64 || ${ARCH} == i386
 PLIST_SUB+=	INTEL_DRIVER=""
 PLIST_SUB+=	RADEON_DRIVERS=""
 .elif ${ARCH} == ia64 || ${ARCH} == powerpc || ${ARCH} == powerpc64
 PLIST_SUB+=	INTEL_DRIVER="@comment "
 PLIST_SUB+=	RADEON_DRIVERS=""
 .else
 PLIST_SUB+=	INTEL_DRIVER="@comment "
 PLIST_SUB+=	RADEON_DRIVERS="@comment "
+.endif
+
+# This variable is not for users. So use a non-default name, intended for
+# people working on DRM kernel module development.
+.if !defined(LIBDRM_SKIP_RETURN_PATCH)
+EXTRA_PATCHES+=	${FILESDIR}/extra-xf86drm.c
 .endif
 
 pre-patch:
 	@${REINPLACE_CMD} 's|{libdir}/pkgconfig|{prefix}/libdata/pkgconfig|g; \
 			   s,i?86|x86_64),i?86|amd64|x86_64),g' \
 		${WRKSRC}/configure
 
 .include <bsd.port.mk>
Index: head/graphics/libdrm/files/extra-xf86drm.c
===================================================================
--- head/graphics/libdrm/files/extra-xf86drm.c	(nonexistent)
+++ head/graphics/libdrm/files/extra-xf86drm.c	(revision 400652)
@@ -0,0 +1,19 @@
+Error code 512 is being leaked from kernel space. While it should be
+converted to either EINTR or EAGAIN in the kernel. Teach libdrm to do this
+for now. Newer kernel modules will have this fixed included.
+
+dragonfly fixed this issue in,
+http://gitweb.dragonflybsd.org/dragonfly.git/commit/b922632f623ee2cc2c1346bb3a6894a7756676aa
+which will be included in the 4.4 release when it is released.
+
+--- xf86drm.c.orig	2015-11-02 12:26:19.910518000 +0100
++++ xf86drm.c	2015-11-02 12:27:10.575894000 +0100
+@@ -174,7 +174,7 @@
+ 
+     do {
+ 	ret = ioctl(fd, request, arg);
+-    } while (ret == -1 && (errno == EINTR || errno == EAGAIN));
++    } while (ret == -1 && (errno == EINTR || errno == EAGAIN || errno == 512));
+     return ret;
+ }
+ 

Property changes on: head/graphics/libdrm/files/extra-xf86drm.c
___________________________________________________________________
Added: fbsd:nokeywords
## -0,0 +1 ##
+1
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Added: svn:eol-style
## -0,0 +1 ##
+native
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Added: svn:mime-type
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+text/plain
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