Mesa (9.0): build: Don't build libdricore if not building classic drivers

[Matt Turner]

Module: Mesa
Branch: 9.0
Commit: ddb9ecca3b0f820feb4dee6bd8901f8b6e3ee0d8
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=ddb9ecca3b0f820feb4dee6bd8901f8b6e3ee0d8

Author: Matt Turner <mattst88 at gmail.com>
Date:   Thu Sep 20 15:08:02 2012 -0700

build: Don't build libdricore if not building classic drivers
(cherry picked from commit 523c01524638b3d1bb363f4c0a647b0777840b7a)

---

 configure.ac         |    1 +
 src/mesa/Makefile.am |    6 +++++-
 2 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/configure.ac b/configure.ac
index 0ae8da3..1a795ca 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1089,6 +1089,7 @@ if test "x$enable_dri" = xyes; then
     DRI_LIB_DEPS="$DRI_LIB_DEPS $SELINUX_LIBS $LIBDRM_LIBS $EXPAT_LIB -lm $PTHREAD_LIBS $DLOPEN_LIBS"
     GALLIUM_DRI_LIB_DEPS="$GALLIUM_DRI_LIB_DEPS $SELINUX_LIBS $LIBDRM_LIBS $EXPAT_LIB -lm $PTHREAD_LIBS $DLOPEN_LIBS"
 fi
+AM_CONDITIONAL(NEED_LIBDRICORE, test -n "$DRI_DIRS")
 AC_SUBST([DRI_DIRS])
 AC_SUBST([EXPAT_INCLUDES])
 AC_SUBST([DRI_LIB_DEPS])
diff --git a/src/mesa/Makefile.am b/src/mesa/Makefile.am
index a76df8c..feec107 100644
--- a/src/mesa/Makefile.am
+++ b/src/mesa/Makefile.am
@@ -19,7 +19,11 @@
 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 # IN THE SOFTWARE.
 
-SUBDIRS = x86 x86-64 . libdricore drivers
+if NEED_LIBDRICORE
+DRICORE_SUBDIR = libdricore
+endif
+
+SUBDIRS = x86 x86-64 . $(DRICORE_SUBDIR) drivers
 
 gldir = $(includedir)/GL
 gl_HEADERS = $(top_srcdir)/include/GL/*.h