configure.ac: consolidate dependencies version check

Reviewed-by: Matt Turner <mattst88@gmail.com>

configure.ac

@@ -38,6 +38,13 @@ DRI3PROTO_REQUIRED=1.0
 PRESENTPROTO_REQUIRED=1.0
 LIBUDEV_REQUIRED=151
 GLPROTO_REQUIRED=1.4.14
+LIBOMXIL_BELLAGIO_REQUIRED=0.0
+VDPAU_REQUIRED=0.4.1
+WAYLAND_REQUIRED=1.2.0
+XCBDRI2_REQUIRED=1.8
+XCBGLX_REQUIRED=1.8.1
+XSHMFENCE_REQUIRED=1.1
+XVMC_REQUIRED=1.0.6
 
 dnl Check for progs
 AC_PROG_CPP
@@ -858,10 +865,10 @@ xyesno)
     fi
 
     # find the DRI deps for libGL
-    dri_modules="x11 xext xdamage xfixes x11-xcb xcb-glx >= 1.8.1 xcb-dri2 >= 1.8"
+    dri_modules="x11 xext xdamage xfixes x11-xcb xcb-glx >= $XCBGLX_REQUIRED xcb-dri2 >= $XCBDRI2_REQUIRED"
 
     if test x"$enable_dri3" = xyes; then
-        dri_modules="$dri_modules xcb-dri3 xcb-present xcb-sync xshmfence >= 1.1"
+        dri_modules="$dri_modules xcb-dri3 xcb-present xcb-sync xshmfence >= $XSHMFENCE_REQUIRED"
     fi
 
     # add xf86vidmode if available
@@ -1297,20 +1304,20 @@ if test -n "$with_gallium_drivers"; then
 fi
 
 if test "x$enable_xvmc" = xyes; then
-    PKG_CHECK_MODULES([XVMC], [xvmc >= 1.0.6 x11-xcb xcb-dri2 >= 1.8])
+    PKG_CHECK_MODULES([XVMC], [xvmc >= $XVMC_REQUIRED x11-xcb xcb-dri2 >= $XCBDRI2_REQUIRED])
     GALLIUM_STATE_TRACKERS_DIRS="$GALLIUM_STATE_TRACKERS_DIRS xvmc"
 fi
 AM_CONDITIONAL(HAVE_ST_XVMC, test "x$enable_xvmc" = xyes)
 
 if test "x$enable_vdpau" = xyes; then
-    PKG_CHECK_MODULES([VDPAU], [vdpau >= 0.4.1 x11-xcb xcb-dri2 >= 1.8],
+    PKG_CHECK_MODULES([VDPAU], [vdpau >= $VDPAU_REQUIRED x11-xcb xcb-dri2 >= $XCBDRI2_REQUIRED],
                       [VDPAU_LIBS="`$PKG_CONFIG --libs x11-xcb xcb-dri2`"])
     GALLIUM_STATE_TRACKERS_DIRS="$GALLIUM_STATE_TRACKERS_DIRS vdpau"
 fi
 AM_CONDITIONAL(HAVE_ST_VDPAU, test "x$enable_vdpau" = xyes)
 
 if test "x$enable_omx" = xyes; then
-    PKG_CHECK_MODULES([OMX], [libomxil-bellagio >= 0.0 x11-xcb xcb-dri2 >= 1.8])
+    PKG_CHECK_MODULES([OMX], [libomxil-bellagio >= $LIBOMXIL_BELLAGIO_REQUIRED x11-xcb xcb-dri2 >= $XCBDRI2_REQUIRED])
     GALLIUM_STATE_TRACKERS_DIRS="$GALLIUM_STATE_TRACKERS_DIRS omx"
 fi
 AM_CONDITIONAL(HAVE_ST_OMX, test "x$enable_omx" = xyes)
@@ -1423,7 +1430,7 @@ egl_platforms=`IFS=', '; echo $with_egl_platforms`
 for plat in $egl_platforms; do
 	case "$plat" in
 	wayland)
-		PKG_CHECK_MODULES([WAYLAND], [wayland-client >= 1.2.0 wayland-server >= 1.2.0])
+		PKG_CHECK_MODULES([WAYLAND], [wayland-client >= $WAYLAND_REQUIRED wayland-server >= $WAYLAND_REQUIRED])
 		GALLIUM_WINSYS_DIRS="$GALLIUM_WINSYS_DIRS sw/wayland"
 
                 WAYLAND_PREFIX=`$PKG_CONFIG --variable=prefix wayland-client`
@@ -1432,7 +1439,7 @@ for plat in $egl_platforms; do
 		;;
 
 	x11)
-		PKG_CHECK_MODULES([XCB_DRI2], [x11-xcb xcb-dri2 >= 1.8 xcb-xfixes])
+		PKG_CHECK_MODULES([XCB_DRI2], [x11-xcb xcb-dri2 >= $XCBDRI2_REQUIRED xcb-xfixes])
 		;;
 
 	drm)