Mesa (master): configure.ac: drop manual detection of expat header/library

[Emil Velikov]

Module: Mesa
Branch: master
Commit: 5c007203b73da88b9e76ce28027c6d27661e45b1
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=5c007203b73da88b9e76ce28027c6d27661e45b1

Author: Emil Velikov <emil.velikov at collabora.com>
Date:   Wed Aug  2 19:39:05 2017 +0100

configure.ac: drop manual detection of expat header/library

Use the .pc file, as provided by version prior 2.1.0 onward and dropping
the manual header/library check.

Version 2.1.0 was released back in Mar 2012 and all major distributions
use it.

Signed-off-by: Emil Velikov <emil.l.velikov at gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle at amd.com>
Reviewed-by: Eric Engestrom <eric.engestrom at imgtec.com> (IRC)

---

 configure.ac | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/configure.ac b/configure.ac
index 21092abebf..5b12dd8506 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1792,13 +1792,7 @@ if test "x$with_dri_drivers" = xno; then
 fi
 
 # Check for expat
-PKG_CHECK_MODULES([EXPAT], [expat], [],
-    # expat version 2.0 and earlier do not provide expat.pc
-    [AC_CHECK_HEADER([expat.h],[],
-                     [AC_MSG_ERROR([Expat headers required for DRI not found])])
-     AC_CHECK_LIB([expat],[XML_ParserCreate],[],
-                 [AC_MSG_ERROR([Expat library required for DRI not found])])
-     EXPAT_LIBS="-lexpat"])
+PKG_CHECK_MODULES([EXPAT], [expat])
 
 dnl If $with_dri_drivers is yes, drivers will be added through
 dnl platform checks. Set DEFINES and LIB_DEPS