mesa: Optionally build a dricore support library (v3)

This an adds --enable-shared-dricore option to configure.  When enabled,
DRI modules will link against a shared copy of the common mesa routines
rather than statically linking these.

This saves about 30MB on disc with a full complement of classic DRI
drivers.

v2: Only enable with a gcc-compatible compiler that handles rpath
    Handle DRI_CFLAGS without filter-out magic
    Build shared libraries with the full mklib voodoo
    Fix typos
v3: Resolve conflicts with talloc removal patches

Signed-off-by: Christopher James Halse Rogers <christopher.halse.rogers@canonical.com>

7 files changed, 28 insertions, 8 deletions

diff --git a/configs/autoconf.in b/configs/autoconf.in
index 2ab18505cc..a3c69e1d39 100644
--- a/configs/autoconf.in
+++ b/configs/autoconf.in
@@ -16,10 +16,12 @@ PIC_FLAGS = @PIC_FLAGS@
 DEFINES = @DEFINES@
 API_DEFINES = @API_DEFINES@
 SHARED_GLAPI = @SHARED_GLAPI@
-CFLAGS = @CPPFLAGS@ @CFLAGS@ \
+CFLAGS_NOVISIBILITY = @CPPFLAGS@ @CFLAGS@ \
 	$(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) $(ASM_FLAGS) $(DEFINES)
-CXXFLAGS = @CPPFLAGS@ @CXXFLAGS@ \
+CXXFLAGS_NOVISIBILITY = @CPPFLAGS@ @CXXFLAGS@ \
 	$(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) $(DEFINES)
+CFLAGS = $(CFLAGS_NOVISIBILITY) @VISIBILITY_CFLAGS@
+CXXFLAGS = $(CXXFLAGS_NOVISIBILITY) @VISIBILITY_CXXFLAGS@
 LDFLAGS = @LDFLAGS@
 EXTRA_LIB_PATH = @EXTRA_LIB_PATH@
 RADEON_CFLAGS = @RADEON_CFLAGS@
@@ -34,6 +36,8 @@ LLVM_LIBS = @LLVM_LIBS@
 GLW_CFLAGS = @GLW_CFLAGS@
 GLUT_CFLAGS = @GLUT_CFLAGS@
 GLX_TLS = @GLX_TLS@
+DRI_CFLAGS = @DRI_CFLAGS@
+DRI_CXXFLAGS = @DRI_CXXFLAGS@
 
 # dlopen
 DLOPEN_LIBS = @DLOPEN_LIBS@
@@ -107,7 +111,10 @@ GALLIUM_AUXILIARIES = $(TOP)/src/gallium/auxiliary/libgallium.a
 GALLIUM_DRIVERS = $(foreach DIR,$(GALLIUM_DRIVERS_DIRS),$(TOP)/src/gallium/drivers/$(DIR)/lib$(DIR).a)
 
 # Driver specific build vars
-DRI_DIRS = @DRI_DIRS@ 
+DRI_DIRS = @DRI_DIRS@
+DRICORE_GLSL_LIBS = @DRICORE_GLSL_LIBS@
+DRICORE_LIBS = @DRICORE_LIBS@
+DRICORE_LIB_DEPS = @DRICORE_LIB_DEPS@
 EGL_PLATFORMS = @EGL_PLATFORMS@
 EGL_CLIENT_APIS = @EGL_CLIENT_APIS@
 
@@ -137,6 +144,7 @@ GLAPI_LIB_DEPS = $(EXTRA_LIB_PATH) @GLAPI_LIB_DEPS@
 WAYLAND_EGL_LIB_DEPS = $(EXTRA_LIBPATH) @WAYLAND_EGL_LIB_DEPS@
 
 # DRI dependencies
+MESA_MODULES = @MESA_MODULES@
 DRI_LIB_DEPS = $(EXTRA_LIB_PATH) @DRI_LIB_DEPS@
 LIBDRM_CFLAGS = @LIBDRM_CFLAGS@
 LIBDRM_LIB = @LIBDRM_LIBS@
diff --git a/configs/default b/configs/default
index 442eb848e5..0582a0210a 100644
--- a/configs/default
+++ b/configs/default
@@ -89,6 +89,9 @@ VG_LIB_GLOB = $(VG_LIB_NAME)*
 GLAPI_LIB_GLOB = $(GLAPI_LIB_NAME)*
 WAYLAND_EGL_LIB_GLOB = $(WAYLAND_EGL_LIB_NAME)*
 
+DRI_CFLAGS = $(CFLAGS)
+DRI_CXXFLAGS = $(CXXFLAGS)
+
 # Optional assembly language optimization files for libGL
 MESA_ASM_SOURCES = 
 
diff --git a/configs/freebsd-dri b/configs/freebsd-dri
index a4aa82e96d..23cf58a3bf 100644
--- a/configs/freebsd-dri
+++ b/configs/freebsd-dri
@@ -30,9 +30,11 @@ ASM_SOURCES =
 MESA_ASM_SOURCES = 
 
 # Library/program dependencies
+MESA_MODULES  = $(TOP)/src/mesa/libmesa.a
+
 LIBDRM_CFLAGS = `pkg-config --cflags libdrm`
 LIBDRM_LIB = `pkg-config --libs libdrm`
-DRI_LIB_DEPS = -L/usr/local/lib -lm -pthread -lexpat $(LIBDRM_LIB)
+DRI_LIB_DEPS = $(MESA_MODULES) -L/usr/local/lib -lm -pthread -lexpat $(LIBDRM_LIB)
 GL_LIB_DEPS = -L/usr/local/lib -lX11 -lXext -lXxf86vm -lXdamage -lXfixes \
 	-lm -pthread $(LIBDRM_LIB)
 
diff --git a/configs/linux-dri b/configs/linux-dri
index 1c94ed0b1f..22190bfc64 100644
--- a/configs/linux-dri
+++ b/configs/linux-dri
@@ -43,9 +43,11 @@ MESA_ASM_SOURCES =
 # Library/program dependencies
 EXTRA_LIB_PATH=-L/usr/X11R6/lib
 
+MESA_MODULES  = $(TOP)/src/mesa/libmesa.a
+
 LIBDRM_CFLAGS = $(shell pkg-config --cflags libdrm)
 LIBDRM_LIB = $(shell pkg-config --libs libdrm)
-DRI_LIB_DEPS  = $(EXTRA_LIB_PATH) -lm -lpthread -lexpat -ldl $(LIBDRM_LIB)
+DRI_LIB_DEPS  = $(MESA_MODULES) $(EXTRA_LIB_PATH) -lm -lpthread -lexpat -ldl $(LIBDRM_LIB)
 GL_LIB_DEPS   = $(EXTRA_LIB_PATH) -lX11 -lXext -lXxf86vm -lXdamage -lXfixes \
 		-lm -lpthread -ldl $(LIBDRM_LIB)
 
diff --git a/configs/linux-dri-xcb b/configs/linux-dri-xcb
index 8092a048d7..7518080703 100644
--- a/configs/linux-dri-xcb
+++ b/configs/linux-dri-xcb
@@ -41,9 +41,11 @@ MESA_ASM_SOURCES =
 # Library/program dependencies
 EXTRA_LIB_PATH=$(shell pkg-config --libs-only-L x11)
 
+MESA_MODULES  = $(TOP)/src/mesa/libmesa.a
+
 LIBDRM_CFLAGS = $(shell pkg-config --cflags libdrm)
 LIBDRM_LIB = $(shell pkg-config --libs libdrm)
-DRI_LIB_DEPS  = $(EXTRA_LIB_PATH) -lm -lpthread -lexpat -ldl $(LIBDRM_LIB)
+DRI_LIB_DEPS  = $(MESA_MODULES) $(EXTRA_LIB_PATH) -lm -lpthread -lexpat -ldl $(LIBDRM_LIB)
 GL_LIB_DEPS   = $(EXTRA_LIB_PATH) -lX11 -lXext -lXxf86vm -lm -lpthread -ldl \
                 $(LIBDRM_LIB) $(shell pkg-config --libs xcb) $(shell pkg-config --libs x11-xcb) $(shell pkg-config --libs xcb-glx)
 
diff --git a/configs/linux-egl b/configs/linux-egl
index 6393e942c7..216bcbab32 100644
--- a/configs/linux-egl
+++ b/configs/linux-egl
@@ -38,9 +38,11 @@ MESA_ASM_SOURCES =
 # Library/program dependencies
 EXTRA_LIB_PATH=-L/usr/X11R6/lib
 
+MESA_MODULES  = $(TOP)/src/mesa/libmesa.a
+
 LIBDRM_CFLAGS = $(shell pkg-config --cflags libdrm)
 LIBDRM_LIB = $(shell pkg-config --libs libdrm)
-DRI_LIB_DEPS  = $(EXTRA_LIB_PATH) -lm -lpthread -lexpat -ldl $(LIBDRM_LIB)
+DRI_LIB_DEPS  = $(MESA_MODULES) $(EXTRA_LIB_PATH) -lm -lpthread -lexpat -ldl $(LIBDRM_LIB)
 GL_LIB_DEPS   = $(EXTRA_LIB_PATH) -lX11 -lXext -lXxf86vm -lXdamage -lXfixes \
 		-lm -lpthread -ldl \
                 $(LIBDRM_LIB)
diff --git a/configs/linux-indirect b/configs/linux-indirect
index 272d34e840..507382adce 100644
--- a/configs/linux-indirect
+++ b/configs/linux-indirect
@@ -42,7 +42,8 @@ MESA_ASM_SOURCES =
 # Library/program dependencies
 EXTRA_LIB_PATH=-L/usr/X11R6/lib
 
-DRI_LIB_DEPS  = $(EXTRA_LIB_PATH) -lm -lpthread -lexpat -ldl
+MESA_MODULES  = $(TOP)/src/mesa/libmesa.a
+DRI_LIB_DEPS  = $(MESA_MODULES) $(EXTRA_LIB_PATH) -lm -lpthread -lexpat -ldl
 GL_LIB_DEPS   = $(EXTRA_LIB_PATH) -lX11 -lXext -lXxf86vm -lm -lpthread -ldl