nixpkgs/pkgs/development/libraries/mesa/symlink-drivers.patch

diff -ru -x '*~' mesa-11.1.4-orig/src/gallium/targets/dri/Makefile.am mesa-11.1.4/src/gallium/targets/dri/Makefile.am
--- mesa-11.1.4-orig/src/gallium/targets/dri/Makefile.am	2016-05-09 14:20:52.000000000 +0200
+++ mesa-11.1.4/src/gallium/targets/dri/Makefile.am	2016-05-22 17:56:03.396185082 +0200
@@ -126,14 +126,13 @@
 	done;
 endif
 
-# hardlink each megadriver instance, but don't actually have
-# gallium_dri.so in the set of final installed files.
+# symlink each megadriver instance.
 install-data-hook:
 	for i in $(TARGET_DRIVERS); do                                  \
-		ln -f $(DESTDIR)$(dridir)/gallium_dri.so                \
+		ln -srf $(DESTDIR)$(dridir)/gallium_dri.so               \
 		      $(DESTDIR)$(dridir)/$${i}_dri.so;                 \
 	done;                                                           \
-	$(RM) $(DESTDIR)$(dridir)/gallium_dri.*
+	$(RM) $(DESTDIR)$(dridir)/gallium_dri.la
 
 uninstall-hook:
 	for i in $(TARGET_DRIVERS); do                                  \
diff -ru -x '*~' mesa-11.1.4-orig/src/gallium/targets/vdpau/Makefile.am mesa-11.1.4/src/gallium/targets/vdpau/Makefile.am
--- mesa-11.1.4-orig/src/gallium/targets/vdpau/Makefile.am	2016-01-29 13:21:30.000000000 +0100
+++ mesa-11.1.4/src/gallium/targets/vdpau/Makefile.am	2016-05-22 20:54:12.722358242 +0200
@@ -103,15 +103,14 @@
 	done;
 endif
 
-# hardlink each megadriver instance, but don't actually have
-# libvdpau_gallium.so in the set of final installed files.
+# symlink each megadriver instance.
 install-data-hook:
 	$(AM_V_GEN)dest_dir=$(DESTDIR)/$(vdpaudir);			\
 	for i in $(TARGET_DRIVERS); do					\
 		j=libvdpau_gallium.$(LIB_EXT);				\
 		k=libvdpau_$${i}.$(LIB_EXT);				\
 		l=$${k}.$(VDPAU_MAJOR).$(VDPAU_MINOR).0;		\
-		ln -f $${dest_dir}/$${j}.$(VDPAU_MAJOR).$(VDPAU_MINOR).0 \
+		ln -srf $${dest_dir}/$${j}.$(VDPAU_MAJOR).$(VDPAU_MINOR).0 \
 		      $${dest_dir}/$${l};				\
 		ln -sf $${l}						\
 		       $${dest_dir}/$${k}.$(VDPAU_MAJOR).$(VDPAU_MINOR); \
@@ -120,7 +119,7 @@
 		ln -sf $${l}						\
 		       $${dest_dir}/$${k};				\
 	done;								\
-	$(RM) $${dest_dir}/libvdpau_gallium.*
+	$(RM) $${dest_dir}/libvdpau_gallium.la
 
 uninstall-hook:
 	for i in $(TARGET_DRIVERS); do					\
diff -ru -x '*~' mesa-11.1.4-orig/src/mesa/drivers/dri/Makefile.am mesa-11.1.4/src/mesa/drivers/dri/Makefile.am
--- mesa-11.1.4-orig/src/mesa/drivers/dri/Makefile.am	2016-01-18 08:39:26.000000000 +0100
+++ mesa-11.1.4/src/mesa/drivers/dri/Makefile.am	2016-05-22 17:55:46.251244940 +0200
@@ -86,14 +86,13 @@
 	done;
 endif
 
-# hardlink each megadriver instance, but don't actually have
-# mesa_dri_drivers.so in the set of final installed files.
+# symink each megadriver instance.
 install-data-hook:
 	for i in $(MEGADRIVERS); do \
-		ln -f $(DESTDIR)$(dridir)/mesa_dri_drivers.so \
+		ln -srf $(DESTDIR)$(dridir)/mesa_dri_drivers.so \
 		      $(DESTDIR)$(dridir)/$$i; \
 	done;
-	$(RM) $(DESTDIR)$(dridir)/mesa_dri_drivers.*
+	$(RM) $(DESTDIR)$(dridir)/mesa_dri_drivers.la
 
 uninstall-hook:
 	for i in $(MEGADRIVERS); do \