[Piglit] [PATCH 4/4] cmake: Better .

[Jose Fonseca]

From: José Fonseca <jfonseca at vmware.com>

- Use find_path/find_library so one can see the variables on cmake-gui

- Provide better error message.
---
 CMakeLists.txt | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2da7aae..6fb6c8a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -65,6 +65,17 @@ if(PIGLIT_USE_WAFFLE)
 			message(FATAL_ERROR "Found waffle-${WAFFLE_VERSION}, but "
 			"piglit requires waffle-${WAFFLE_REQUIRED_VERSION}")
 		endif()
+	else ()
+		find_path(WAFFLE_INCLUDE_DIRS waffle.h)
+		find_library(WAFFLE_LDFLAGS waffle-1)
+		if(WAFFLE_INCLUDE_DIRS AND WAFFLE_LDFLAGS)
+			set(WAFFLE_FOUND TRUE)
+		else()
+			message(FATAL_ERROR "Failed to find Waffle. Get and build Waffle from "
+				"http://www.waffle-gl.org and set WAFFLE_INCLUDE_DIRS and "
+				"WAFFLE_LDFLAGS variables accordingly."
+			)
+		endif()
 	endif ()
 
 	add_definitions(-DPIGLIT_USE_WAFFLE)
-- 
2.1.0