automake: Convert dricore building to automake.

This is performed in a subdirectory to avoid needing to convert all of
src/mesa/Makefile in one go.

I can now cherry-pick a commit containing glapi XML changes, do "(cd
src/mapi/glapi/gen && make) && make", and get a working driver.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
diff --git a/configure.ac b/configure.ac
index 6830bde..20bd00b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -50,6 +50,7 @@
 AC_PROG_CC
 AC_PROG_CXX
 AM_PROG_CC_C_O
+AM_PROG_AS
 AC_CHECK_PROGS([MAKE], [gmake make])
 AC_CHECK_PROGS([PYTHON2], [python2 python])
 AC_PROG_SED
@@ -1087,7 +1088,9 @@
     DRI_CFLAGS='$(CFLAGS_NOVISIBILITY) -DUSE_DRICORE'
     DRI_CXXFLAGS='$(CXXFLAGS_NOVISIBILITY) -DUSE_DRICORE'
     MESA_MODULES='$(DRICORE_LIBS) $(DRICORE_GLSL_LIBS)'
+    HAVE_DRICORE=yes
 fi
+AM_CONDITIONAL(HAVE_DRICORE, test x$HAVE_DRICORE = xyes)
 AC_SUBST([DRICORE_LIBS])
 AC_SUBST([DRICORE_GLSL_LIBS])
 AC_SUBST([DRICORE_LIB_DEPS])
@@ -2074,6 +2077,14 @@
 AM_CONDITIONAL(HAVE_DRM_LOADER_GALLIUM, test x$enable_gallium_drm_loader = xyes)
 AC_SUBST([GALLIUM_MAKE_DIRS])
 
+AM_CONDITIONAL(HAVE_X11_DRIVER, echo "$DRIVER_DIRS" | grep 'x11' >/dev/null 2>&1)
+AM_CONDITIONAL(HAVE_DRI_DRIVER, echo "$DRIVER_DIRS" | grep 'dri' >/dev/null 2>&1)
+AM_CONDITIONAL(HAVE_OSMESA_DRIVER, echo "$DRIVER_DIRS" | grep 'osmesa' >/dev/null 2>&1)
+
+AM_CONDITIONAL(HAVE_X86_ASM, echo "$ASM_FLAGS" | grep 'X86_ASM' >/dev/null 2>&1)
+AM_CONDITIONAL(HAVE_X86_64_ASM, echo "$ASM_FLAGS" | grep 'X86_64_ASM' >/dev/null 2>&1)
+AM_CONDITIONAL(HAVE_SPARC_ASM, echo "$ASM_FLAGS" | grep 'SPARC_ASM' >/dev/null 2>&1)
+
 dnl prepend CORE_DIRS to SRC_DIRS
 SRC_DIRS="$CORE_DIRS $SRC_DIRS"
 
@@ -2108,6 +2119,7 @@
 		src/glx/Makefile
 		src/mapi/shared-glapi/Makefile
 		src/gtest/Makefile
+		src/mesa/libdricore/Makefile
 		src/mesa/drivers/dri/dri.pc
 		src/mesa/drivers/dri/Makefile
 		src/mesa/drivers/dri/common/Makefile