Revert "pdfform.module: repair whitespace"

[lyx.git] / config / qt4.m4

diff --git a/config/qt4.m4 b/config/qt4.m4
index 1346146ce7a73511d219f21d32b06eca191a3a7e..daa11718ee0ea66c5b1f53430738cf1ff8dbba4d 100644 (file)
--- a/config/qt4.m4
+++ b/config/qt4.m4
@@ -169,6 +169,19 @@ AC_DEFUN([QT_DO_IT_ALL],
        [AC_MSG_ERROR([LyX requires at least version $1 of Qt. Only version $QTLIB_VERSION has been found.])
        ])
 
+       if test x$USE_QT5 = xyes ; then
+         save_CPPFLAGS=$CPPFLAGS
+         AC_MSG_CHECKING([whether Qt uses the X Window system])
+         CPPFLAGS="$save_CPPFLAGS $QT_CORE_INCLUDES"
+         AC_EGREP_CPP(xcb,
+           [#include <qconfig.h>
+           QT_QPA_DEFAULT_PLATFORM_NAME],
+           [AC_MSG_RESULT(yes)
+            AC_DEFINE(QPA_XCB, 1, [Define if Qt uses the X Window System])],
+           [AC_MSG_RESULT(no)])
+         CPPFLAGS=$save_CPPFLAGS
+       fi
+
        QT_FIND_TOOL([QT_MOC], [moc])
        QT_FIND_TOOL([QT_UIC], [uic])
        QT_FIND_TOOL([QT_RCC], [rcc])