media-gfx/opencsg: fix build with GCC 6

Gentoo-bug: 623840
Package-Manager: Portage-2.3.6, Repoman-2.3.2

media-gfx/opencsg/files/opencsg-1.4.2-includepath.patch

@@ -0,0 +1,25 @@
+* Fix build with GCC 6
+* Don't hardcode libdir
+
+Gentoo-bug: 623840
+
+--- a/src.pro
++++ b/src.pro
+@@ -7,14 +7,14 @@
+ }
+
+ CONFIG += opengl warn_on release
+-INCLUDEPATH += ../include ../ $$INSTALLDIR/include
++INCLUDEPATH += ../include ..
+ CONFIG -= qt
+-LIBS += -L$$INSTALLDIR/lib -lGLEW
++LIBS += -lGLEW
+
+ DESTDIR = ../lib
+ headers.files = ../include/opencsg.h
+ headers.path = $$INSTALLDIR/include
+-target.path = $$INSTALLDIR/lib
++target.path = $$INSTALLDIR/$$LIBDIR
+ INSTALLS += target headers
+
+ HEADERS		= ../include/opencsg.h \

media-gfx/opencsg/opencsg-1.4.2.ebuild

@@ -22,19 +22,19 @@ DEPEND="${RDEPEND}
 
 S="${WORKDIR}/${MY_P}/src"
 
+PATCHES=(
+	"${FILESDIR}/${P}-includepath.patch"
+)
+
 src_prepare() {
 	default
 
 	# removes duplicated headers
 	rm -r ../glew || die "failed to remove bundled glew"
-
-	sed -i -e "s:^target.path.*:target.path = \$\$INSTALLDIR/$(get_libdir):" \
-		src.pro \
-		|| die 'failed to fix target.path in src.pro'
 }
 
 src_configure() {
-	eqmake5 src.pro INSTALLDIR="/usr"
+	eqmake5 src.pro INSTALLDIR="/usr" LIBDIR="$(get_libdir)"
 }
 
 src_install() {