i965/blorp: Convert brw_blorp.cpp to a C file

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
diff --git a/configure.ac b/configure.ac
index 38d1f5b..3556827 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2654,6 +2654,11 @@
 
 AC_OUTPUT
 
+# Fix up dependencies in *.Plo files, where we changed the extension of a
+# source file
+$SED -i -e 's/brw_blorp.cpp/brw_blorp.c/' src/mesa/drivers/dri/i965/.deps/brw_blorp.Plo
+
+
 dnl
 dnl Output some configuration info for the user
 dnl