[PATCH weston] build: Define wayland prereq version

[Bryce Harrington]

Establishes a single variable for defining the libwayland version
requirements.  Enforces the same version dependency between
libwayland-client and libwayland-server, as recommended by pq in the
1.11 release discussions.

Signed-off-by: Bryce Harrington <bryce at osg.samsung.com>
---
 configure.ac | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/configure.ac b/configure.ac
index 2ca1f4e..0b23fc4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,6 +4,8 @@ m4_define([weston_micro_version], [91])
 m4_define([weston_version],
           [weston_major_version.weston_minor_version.weston_micro_version])
 
+m4_define([WAYLAND_PREREQ_VERSION], "1.10.0")
+
 AC_PREREQ([2.64])
 AC_INIT([weston],
         [weston_version],
@@ -60,7 +62,7 @@ AC_CHECK_HEADERS([execinfo.h])
 
 AC_CHECK_FUNCS([mkostemp strchrnul initgroups posix_fallocate])
 
-COMPOSITOR_MODULES="wayland-server >= 1.10.0 pixman-1 >= 0.25.2"
+COMPOSITOR_MODULES="wayland-server >= WAYLAND_PREREQ_VERSION pixman-1 >= 0.25.2"
 
 AC_CONFIG_FILES([doc/doxygen/tools.doxygen doc/doxygen/tooldev.doxygen])
 
@@ -193,7 +195,7 @@ AM_CONDITIONAL(ENABLE_WAYLAND_COMPOSITOR,
 if test x$enable_wayland_compositor = xyes -a x$enable_egl = xyes; then
   AC_DEFINE([BUILD_WAYLAND_COMPOSITOR], [1],
 	    [Build the Wayland (nested) compositor])
-  PKG_CHECK_MODULES(WAYLAND_COMPOSITOR, [wayland-client >= 1.5.91 wayland-egl wayland-cursor])
+  PKG_CHECK_MODULES(WAYLAND_COMPOSITOR, [wayland-client >= WAYLAND_PREREQ_VERSION wayland-egl wayland-cursor])
 fi
 
 
@@ -332,7 +334,7 @@ AM_CONDITIONAL(ENABLE_VAAPI_RECORDER, test "x$have_libva" = xyes)
 
 PKG_CHECK_MODULES(CAIRO, [cairo])
 
-PKG_CHECK_MODULES(TEST_CLIENT, [wayland-client >= 1.10.0])
+PKG_CHECK_MODULES(TEST_CLIENT, [wayland-client >= WAYLAND_PREREQ_VERSION])
 
 AC_ARG_ENABLE(simple-clients,
               AS_HELP_STRING([--disable-simple-clients],
@@ -386,9 +388,9 @@ AM_CONDITIONAL(BUILD_CLIENTS, test x$enable_clients = xyes)
 if test x$enable_clients = xyes; then
   AC_DEFINE([BUILD_CLIENTS], [1], [Build the Wayland clients])
 
-  PKG_CHECK_MODULES(CLIENT, [wayland-client >= 1.5.91 cairo >= 1.10.0 xkbcommon wayland-cursor])
+  PKG_CHECK_MODULES(CLIENT, [wayland-client >= WAYLAND_PREREQ_VERSION cairo >= 1.10.0 xkbcommon wayland-cursor])
   PKG_CHECK_MODULES(SERVER, [wayland-server])
-  PKG_CHECK_MODULES(WESTON_INFO, [wayland-client >= 1.5.91])
+  PKG_CHECK_MODULES(WESTON_INFO, [wayland-client >= WAYLAND_PREREQ_VERSION])
 
   # Only check for cairo-egl if a GL or GLES renderer requested
   AS_IF([test "x$cairo_modules" = "xcairo-gl" -o "x$cairo_modules" = "xcairo-glesv2"], [
-- 
1.9.1