Use pkg-config to search for all XCB dependencies

The XCB platform plugin requires several XCB libraries to work. Without
this fix, we get the build error in compileTest only, which is hard to
check.

Change-Id: I6b599f5ad32661e9dc01db11705d702920350cfa
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>

diff --git a/configure b/configure
index 7a72ba7..5e77995 100755 (executable)
--- a/configure
+++ b/configure
@@ -4772,8 +4772,8 @@ fi
 
 if [ "$CFG_XCB" != "no" ]; then
     if [ -n "$PKG_CONFIG" ] && $PKG_CONFIG --exists "xcb >= 1.5" 2>/dev/null; then
-        QMAKE_CFLAGS_XCB="`$PKG_CONFIG --cflags xcb 2>/dev/null`"
-        QMAKE_LIBS_XCB="`$PKG_CONFIG --libs xcb 2>/dev/null`"
+        QMAKE_CFLAGS_XCB="`$PKG_CONFIG --cflags xcb xcb-image xcb-keysyms xcb-icccm xcb-sync xcb-xfixes xcb-randr 2>/dev/null`"
+        QMAKE_LIBS_XCB="`$PKG_CONFIG --libs xcb xcb-image xcb-keysyms xcb-icccm xcb-sync xcb-xfixes xcb-randr 2>/dev/null`"
     fi
     if compileTest qpa/xcb "xcb" $QMAKE_CFLAGS_XCB $QMAKE_LIBS_XCB; then
         CFG_XCB=yes