Mesa (master): configure: remove unneeded bits around libunwind handling

[Emil Velikov]

Module: Mesa
Branch: master
Commit: 709468a8088f7d9b3472ca6993e983a2361b5509
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=709468a8088f7d9b3472ca6993e983a2361b5509

Author: Emil Velikov <emil.velikov at collabora.com>
Date:   Mon May  8 17:37:02 2017 +0100

configure: remove unneeded bits around libunwind handling

If libunwind is not found we'll fail at PKG_CHECK_MODULES, so the
follow-up check will be false. Additionally the AM_CONDITIONAL is not
used, so we can drop it.

Fixes: 3bcef6aa245 ("configure.ac: honour --disable-libunwind if the .pc file is present")
Signed-off-by: Emil Velikov <emil.velikov at collabora.com>

---

 configure.ac | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/configure.ac b/configure.ac
index 5c460f43d5..ce5301f3e4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1079,14 +1079,9 @@ fi
 
 if test "x$LIBUNWIND" = "xyes"; then
     PKG_CHECK_MODULES(LIBUNWIND, libunwind)
-    if test "x$HAVE_LIBUNWIND" != "xyes"; then
-        AC_MSG_ERROR([libunwind requested but not installed.])
-    fi
     AC_DEFINE(HAVE_LIBUNWIND, 1, [Have libunwind support])
 fi
 
-AM_CONDITIONAL(HAVE_LIBUNWIND, [test "x$LIBUNWIND" = xyes])
-
 
 dnl Options for APIs
 AC_ARG_ENABLE([opengl],