summaryrefslogtreecommitdiff
path: root/m4
diff options
context:
space:
mode:
authorChris Wilson <chris@chris-wilson.co.uk>2013-04-17 15:24:10 +0100
committerChris Wilson <chris@chris-wilson.co.uk>2013-04-17 15:28:13 +0100
commit1bf0d869ae07ffc5b9cd79904b421cd37997ae8c (patch)
tree62f4e73eef849d7133386b2feaf2d63ad26f6f85 /m4
parentddd75d6539dcf692cb76747cd63d1f301180f18a (diff)
Prefer i830_dri.so for gen2 chipsets
Probe for i830_dri.so and, if it exists, use that driver in preference to i915_dri.so for DRI (i.e. GL clients). This was suggested in the context of distributions supplying i915g as the main DRI driver for gen3, in which case we need to provide a separate DRI driver for gen2. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'm4')
-rw-r--r--m4/ac_define_dir.m449
1 files changed, 49 insertions, 0 deletions
diff --git a/m4/ac_define_dir.m4 b/m4/ac_define_dir.m4
new file mode 100644
index 00000000..db42d3eb
--- /dev/null
+++ b/m4/ac_define_dir.m4
@@ -0,0 +1,49 @@
+# ===========================================================================
+# http://autoconf-archive.cryp.to/ac_define_dir.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AC_DEFINE_DIR(VARNAME, DIR [, DESCRIPTION])
+#
+# DESCRIPTION
+#
+# This macro sets VARNAME to the expansion of the DIR variable, taking
+# care of fixing up ${prefix} and such.
+#
+# VARNAME is then offered as both an output variable and a C preprocessor
+# symbol.
+#
+# Example:
+#
+# AC_DEFINE_DIR([DATADIR], [datadir], [Where data are placed to.])
+#
+# LAST MODIFICATION
+#
+# 2008-04-12
+#
+# COPYLEFT
+#
+# Copyright (c) 2008 Stepan Kasal <kasal@ucw.cz>
+# Copyright (c) 2008 Andreas Schwab <schwab@suse.de>
+# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
+# Copyright (c) 2008 Alexandre Oliva
+#
+# Copying and distribution of this file, with or without modification, are
+# permitted in any medium without royalty provided the copyright notice
+# and this notice are preserved.
+
+AC_DEFUN([AC_DEFINE_DIR], [
+ prefix_NONE=
+ exec_prefix_NONE=
+ test "x$prefix" = xNONE && prefix_NONE=yes && prefix=$ac_default_prefix
+ test "x$exec_prefix" = xNONE && exec_prefix_NONE=yes && exec_prefix=$prefix
+dnl In Autoconf 2.60, ${datadir} refers to ${datarootdir}, which in turn
+dnl refers to ${prefix}. Thus we have to use `eval' twice.
+ eval ac_define_dir="\"[$]$2\""
+ eval ac_define_dir="\"$ac_define_dir\""
+ AC_SUBST($1, "$ac_define_dir")
+ AC_DEFINE_UNQUOTED($1, "$ac_define_dir", [$3])
+ test "$prefix_NONE" && prefix=NONE
+ test "$exec_prefix_NONE" && exec_prefix=NONE
+])