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From Philip Lowman, "I changed the test name to be a little easier to understand and defaulted Linux & Windows builds to false and to skip the compile check as you desired.

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This commit is contained in:
Robert Osfield 2008-05-26 21:18:41 +00:00
parent 3d163c3412
commit ee6f055bc5
1 changed files with 28 additions and 16 deletions
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44
CMakeLists.txt
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@ -260,24 +260,36 @@ ENDIF(PKG_CONFIG_FOUND)
# Test to determine if we want the "tripledot" form of the GLU tesselator callback.
#
IF(NOT DEFAULT_GLU_TESS_CALLBACK_TRIPLEDOT)
INCLUDE(CheckCXXSourceCompiles)
SET(CMAKE_REQUIRED_DEFINITIONS -DGLU_TESS_CALLBACK_TRIPLEDOT)
SET(CMAKE_REQUIRED_INCLUDES ${CMAKE_CURRENT_SOURCE_DIR}/include ${GLUT_INCLUDE_DIR} ${GL_INCLUDE_DIR})
SET(CMAKE_REQUIRED_LIBRARIES ${GLUT_LIBRARY} ${GL_LIBRARY})
CHECK_CXX_SOURCE_COMPILES(
"#include <osg/GL>
#include <osg/GLU>
static void testcb(GLvoid *, void*) { }
int main()
{
GLUtesselator *t = gluNewTess();
gluTessCallback(t, GLU_TESS_VERTEX_DATA, (GLU_TESS_CALLBACK) testcb);
return 0;
}"
DEFAULT_GLU_TESS_CALLBACK_TRIPLEDOT)
IF(WIN32 OR CMAKE_SYSTEM_NAME MATCHES "Linux")
# Skip the compile check for platforms that never need the variable
# form.
SET(DEFAULT_GLU_TESS_CALLBACK_TRIPLEDOT false)
ELSE(WIN32 OR CMAKE_SYSTEM_NAME MATCHES "Linux")
# For other platforms perform the check
INCLUDE(CheckCXXSourceCompiles)
SET(CMAKE_REQUIRED_DEFINITIONS -DGLU_TESS_CALLBACK_TRIPLEDOT)
SET(CMAKE_REQUIRED_INCLUDES ${CMAKE_CURRENT_SOURCE_DIR}/include ${GLUT_INCLUDE_DIR} ${GL_INCLUDE_DIR})
SET(CMAKE_REQUIRED_LIBRARIES ${GLUT_LIBRARY} ${GL_LIBRARY})
CHECK_CXX_SOURCE_COMPILES(
"#include <osg/GL>
#include <osg/GLU>
static void testcb(GLvoid *, void*) { }
int main() {
GLUtesselator *t = gluNewTess();
gluTessCallback(t, GLU_TESS_VERTEX_DATA, (GLU_TESS_CALLBACK) testcb);
return 0;
}"
GLU_Tesselator_Needs_Variable_Parameter_Callback_Convention_Failure_Means_No)
SET(DEFAULT_GLU_TESS_CALLBACK_TRIPLEDOT
${GLU_Tesselator_Needs_Variable_Parameter_Callback_Convention_Failure_Means_No})
ENDIF(WIN32 OR CMAKE_SYSTEM_NAME MATCHES "Linux")
ENDIF(NOT DEFAULT_GLU_TESS_CALLBACK_TRIPLEDOT)
OPTION(OSG_GLU_TESS_CALLBACK_TRIPLEDOT "Set to ON to build build with (...) version of GLU tesselator callback" ${DEFAULT_GLU_TESS_CALLBACK_TRIPLEDOT})
OPTION(OSG_GLU_TESS_CALLBACK_TRIPLEDOT "Set to ON to build build with variable parameter (...) version of GLU tesselator callback" ${DEFAULT_GLU_TESS_CALLBACK_TRIPLEDOT})
IF(OSG_GLU_TESS_CALLBACK_TRIPLEDOT)
ADD_DEFINITIONS(-DGLU_TESS_CALLBACK_TRIPLEDOT)
ENDIF(OSG_GLU_TESS_CALLBACK_TRIPLEDOT)