Demos (master): cmake: Define HAVE_FREEGLUT when glutInitContextProfile symbol is present.

[Jose Fonseca]

Module: Demos
Branch: master
Commit: d014902154033339f0bea1a159cb1375ba6bd04d
URL:    http://cgit.freedesktop.org/mesa/demos/commit/?id=d014902154033339f0bea1a159cb1375ba6bd04d

Author: José Fonseca <jose.r.fonseca at gmail.com>
Date:   Tue Oct 21 20:26:04 2014 +0100

cmake: Define HAVE_FREEGLUT when glutInitContextProfile symbol is present.

Just like the configure.ac does.

Trivial.

---

 CMakeLists.txt |    9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 88a8b88..c3e217f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,6 +4,7 @@ project (mesademos)
 
 include (FindPkgConfig)
 include (CheckCCompilerFlag)
+include (CheckSymbolExists)
 
 find_package (OpenGL REQUIRED)
 find_package (GLUT REQUIRED)
@@ -25,6 +26,14 @@ if (PKG_CONFIG_FOUND AND NOT WIN32)
 	pkg_check_modules (VG vg)
 endif ()
 
+# Check for FreeGLUT 2.6 or later
+set (CMAKE_REQUIRED_INCLUDES "${GLUT_INCLUDE_DIR}")
+set (CMAKE_REQUIRED_LIBRARIES "${GLUT_glut_LIBRARY}")
+check_symbol_exists ("glutInitContextProfile" "GL/glut.h;GL/freeglut.h" HAVE_FREEGLUT)
+if (HAVE_FREEGLUT)
+	add_definitions (-DHAVE_FREEGLUT)
+endif ()
+
 if (UNIX)
 	link_libraries(m)
 endif (UNIX)