[PATCH] Fix build of swrast only without libdrm

[Daniel Martin]

Signed-off-by: Daniel Martin <consume.noise at gmail.com>
---
There's a small logic error preventing mesa to be build with swrast only
and not having libdrm.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/configure.ac b/configure.ac
index 5701f8a..aa1b38a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1089,7 +1089,7 @@ if test "x$enable_dri" = xyes; then
     fi
 
     # if we are building any dri driver other than swrast or using the dri state tracker ...
-    if test -n "$DRI_DIRS" -a x"$DRI_DIRS" != xswrast || test "x$enable_dri" = xyes; then
+    if test -n "$DRI_DIRS" -a x"$DRI_DIRS" != xswrast && test "x$enable_dri" = xyes; then
         # ... libdrm is required
         if test "x$have_libdrm" != xyes; then
             AC_MSG_ERROR([DRI drivers requires libdrm >= $LIBDRM_REQUIRED])
-- 
1.7.2.5