diff options
| -rw-r--r-- | configure.ac | 13 | ||||
| -rw-r--r-- | etc/NEWS | 5 |
2 files changed, 13 insertions, 5 deletions
diff --git a/configure.ac b/configure.ac index fb9aa19d6ee..9a51ea1f7ed 100644 --- a/configure.ac +++ b/configure.ac @@ -463,6 +463,7 @@ OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping]) OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif/Xaw3d/GTK toolkit scroll bars]) OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d]) OPTION_DEFAULT_ON([xim],[at runtime, default X11 XIM to off]) +OPTION_DEFAULT_ON([xdbe],[don't use X11 double buffering support]) AC_ARG_WITH([ns],[AS_HELP_STRING([--with-ns], [use Nextstep (macOS Cocoa or GNUstep) windowing system. On by default on macOS.])],[],[with_ns=maybe]) @@ -4023,11 +4024,13 @@ AC_SUBST(XFIXES_LIBS) ### Use Xdbe (-lXdbe) if available HAVE_XDBE=no if test "${HAVE_X11}" = "yes"; then - AC_CHECK_HEADER(X11/extensions/Xdbe.h, - [AC_CHECK_LIB(Xext, XdbeAllocateBackBufferName, HAVE_XDBE=yes)], - [], - [#include <X11/Xlib.h> - ]) + if test "${with_xdbe}" != "no"; then + AC_CHECK_HEADER(X11/extensions/Xdbe.h, + [AC_CHECK_LIB(Xext, XdbeAllocateBackBufferName, HAVE_XDBE=yes)], + [], + [#include <X11/Xlib.h> + ]) + fi if test $HAVE_XDBE = yes; then XDBE_LIBS=-lXext fi @@ -42,6 +42,11 @@ default. We strongly recommend building with HarBuzz support. 'x' is still a valid backend. --- +** Building without double buffering support. +configure --with-xdbe=no can now be used to disable double buffering +at build time. + +--- ** 'configure' now warns about building with libXft support. libXft is unmaintained, and causes a number of problems with modern fonts including but not limited to crashes; support for it may be |