From 44dbf3d6bb9e5ed3c60260f3da67da2df9f4e587 Mon Sep 17 00:00:00 2001
From: Sandro Santilli <strk@keybit.net>
Date: Fri, 10 Dec 2010 13:49:29 +0100
Subject: [PATCH] Implement yes/no/auto for FB gui. Defaults to auto. Build
 only on linux and if AGG renderer is enabled.

---
 configure.ac | 32 ++++++++++++++++++++++++++++++--
 1 file changed, 30 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index b24f5c782..58002127f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -647,7 +647,9 @@ AC_ARG_ENABLE(gui,
       break;
     fi
   done],
-  [if test x"${openbsd_os}" = x"openbsd"; then
+  [ dnl Run the following code if no --enable-gui is given
+  build_fb=auto
+  if test x"${openbsd_os}" = x"openbsd"; then
     build_kde3=yes;
     build_gtk=yes;
   else if test x"${haiku}" = xyes; then
@@ -657,7 +659,8 @@ AC_ARG_ENABLE(gui,
     build_gtk=yes
     build_dump=auto
   fi
-  fi]
+  fi
+  ]
 )
 
 if test x"${build_haiku}" = xyes; then
@@ -1812,6 +1815,31 @@ if test x"${build_dump}" != xno; then
   fi
 fi
 
+dnl Check possibility to build FB gui, if requested
+dnl FB dependencies are a linux system (linux/fb.h) 
+dnl and AGG renderer
+if test x"${build_fb}" != xno; then
+  if test x"${linux}" = xyes; then
+    if test x"${build_agg}" = xyes; then
+      build_fb=yes
+    else
+      if test x"${build_fb}" = xyes; then
+        dnl SHOULD we just check at the end of file instead ?
+        AC_MSG_ERROR([fb GUI cannot be built without AGG renderer])
+      fi
+      AC_MSG_NOTICE([fb GUI won't be built (needs AGG renderer)])
+      build_fb=no
+    fi
+  else
+    if test x"${build_fb}" = xyes; then
+      dnl SHOULD we just check at the end of file instead ?
+      AC_MSG_ERROR(fb GUI cannot be built on non-linux platforms);
+    fi
+    AC_MSG_NOTICE([fb GUI won't be built (non-linux platform)])
+    build_fb=no
+  fi
+fi
+
 dnl TODO: add checks for all other GUIs
 
 dnl -----------------------------------------------------------
-- 
2.11.4.GIT