Initial commit of the Exa bits.

Based on ajax' mga-exa-2.patch with some straight forward fixes
by myself.

1 files changed, 44 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index 1ea6ce1..d2df13a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -51,6 +51,11 @@ AC_ARG_ENABLE(dri, AC_HELP_STRING([--disable-dri],
                                   [Disable DRI support [[default=auto]]]),
               [DRI="$enableval"],
               [DRI=auto])
+AC_ARG_ENABLE(exa,
+              AC_HELP_STRING([--disable-exa],
+                             [Disable EXA support [[default enabled]]]),
+              [EXA="$enableval"],
+              [EXA=yes])
 
 # Checks for extensions
 XORG_DRIVER_CHECK_EXT(RANDR, randrproto)
@@ -95,6 +100,45 @@ if test "x$DRI" = xyes; then
         AC_DEFINE(XF86DRI_DEVEL,1,[Enable developmental DRI driver support])
 fi
 
+AM_CONDITIONAL(USE_XAA, true)
+AC_DEFINE(USE_XAA, 1, [Build support for XAA])
+
+# Properly handle EXA.
+AC_MSG_CHECKING([whether to enable EXA support])
+if test "x$EXA" = xyes; then
+    AC_MSG_RESULT(yes)
+
+    SAVE_CPPFLAGS="$CPPFLAGS"
+    CPPFLAGS="$CPPFLAGS $XORG_CFLAGS"
+    AC_CHECK_HEADER(exa.h,
+                   [have_exa_h="yes"], [have_exa_h="no"])
+    CPPFLAGS="$SAVE_CPPFLAGS"
+else
+    AC_MSG_RESULT(no)
+fi 
+
+SAVE_CPPFLAGS="$CPPFLAGS"
+CPPFLAGS="$CPPFLAGS $XORG_CFLAGS"
+if test "x$have_exa_h" = xyes; then
+    AC_MSG_CHECKING([whether EXA version is at least 2.0.0])
+    AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
+#include "exa.h"
+#if EXA_VERSION_MAJOR < 2
+#error OLD EXA!
+#endif
+                      ]])],
+                      [USE_EXA=yes],
+                      [USE_EXA=no])
+    AC_MSG_RESULT($USE_EXA)
+
+    if test "x$USE_EXA" = xyes; then
+        AC_DEFINE(USE_EXA, 1, [Build support for Exa])
+    fi
+fi
+CPPFLAGS="$SAVE_CPPFLAGS"
+
+AM_CONDITIONAL(USE_EXA, test "x$USE_EXA" = xyes)
+
 AC_SUBST([DRI_CFLAGS])
 AC_SUBST([XORG_CFLAGS])
 AC_SUBST([moduledir])