Merge pull request #256 from openscad/glewfix

fix bugs and rewrite GLEW finding code to be more clear.

tests/CMakeLists.txt

@@ -294,8 +294,7 @@ if (NOT $ENV{GLEWDIR} STREQUAL "")
 elseif (NOT $ENV{OPENSCAD_LIBRARIES} STREQUAL "")
   set(GLEW_DIR "$ENV{OPENSCAD_LIBRARIES}")
 endif()
-if (NOT GLEW_INCLUDE_DIR)
-  message(STATUS "OPENCSG_DIR: " ${OPENCSG_DIR})
+if (GLEW_DIR)
   find_path(GLEW_INCLUDE_DIR
             GL/glew.h
             HINTS ${GLEW_DIR}/include
@@ -304,16 +303,18 @@ if (NOT GLEW_INCLUDE_DIR)
                NAMES GLEW glew
                HINTS ${GLEW_DIR}/lib ${GLEW_DIR}/lib64
 	       NO_DEFAULT_PATH)
-  if (NOT GLEW_LIBRARY)
-    find_package(GLEW REQUIRED)
-    if (NOT GLEW_LIBRARY)
-      message(FATAL_ERROR "GLEW not found")
-    endif()
+  if (GLEW_INCLUDE_DIR AND GLEW_LIBRARY)
+    set(GLEW_FOUND 1)
   endif()
-  message(STATUS "GLEW include: " ${GLEW_INCLUDE_DIR})
-  message(STATUS "GLEW library: " ${GLEW_LIBRARY})
 endif()
 
+if (NOT GLEW_FOUND)
+  find_package(GLEW REQUIRED)
+endif()
+
+message(STATUS "GLEW include: " ${GLEW_INCLUDE_DIR})
+message(STATUS "GLEW library: " ${GLEW_LIBRARY})
+
 inclusion(GLEW_DIR GLEW_INCLUDE_DIR)
 
 # Flex/Bison

tests/FindGLEW.cmake

@@ -10,56 +10,58 @@
 # a few lines of this file are based on the LGPL code found at 
 # http://openlibraries.org/browser/trunk/FindGLEW.cmake?rev=1383 
 
-include(FindPkgConfig)
+if (WIN32 AND MSVC)
+  if (WIN32_STATIC_BUILD) # passed from caller
+    set(GLEW_LIB_SEARCH_NAME glew32s.lib) # static, non-debug (Release)
+  else ()
+    set(GLEW_LIB_SEARCH_NAME glew32.lib) # other. untested with OpenSCAD
+  endif()
+else () # GCC
+  set(GLEW_LIB_SEARCH_NAME "libglew32s.a")
+endif ()
 
-if (PKG_CONFIG_FOUND)
-  message("Doing pkg config glew check...")
-  pkg_check_modules(GLEW glew>=1.6)
+if (WIN32)
+  find_path(GLEW_INCLUDE_DIR GL/glew.h
+    $ENV{PROGRAMFILES}/GLEW/include
+    ${PROJECT_SOURCE_DIR}/src/nvgl/glew/include
+    DOC "The directory where GL/glew.h resides")
+  find_library(GLEW_LIBRARY
+    NAMES ${GLEW_LIB_SEARCH_NAME}
+    PATHS
+    $ENV{PROGRAMFILES}/GLEW/lib
+    ${PROJECT_SOURCE_DIR}/src/nvgl/glew/bin
+    ${PROJECT_SOURCE_DIR}/src/nvgl/glew/lib
+    DOC "The GLEW library")
+else()
+  find_path(GLEW_INCLUDE_DIR GL/glew.h
+    PATHS /usr/include /usr/local/include /usr/pkg/include
+    NO_DEFAULT_PATH
+    DOC "The directory where GL/glew.h resides")
+  find_library(GLEW_LIBRARY
+    NAMES GLEW glew
+    PATHS /usr/lib /usr/local/lib /usr/pkg/lib /lib /lib64 /usr/lib64
+    NO_DEFAULT_PATH
+    DOC "The GLEW library")
 endif()
 
-if (GLEW_LIBRARIES)
-  set(GLEW_INCLUDE_DIR "${GLEW_INCLUDE_DIRS}")
-  set(GLEW_LIBRARY ${GLEW_LDFLAGS})
+if (GLEW_INCLUDE_DIR AND GLEW_LIBRARY)
+  set(GLEW_FOUND 1 CACHE STRING "Set to 1 if GLEW is found, 0 otherwise")
 else()
-  if (WIN32 AND MSVC)
-    if (WIN32_STATIC_BUILD) # passed from caller
-      set(GLEW_LIB_SEARCH_NAME glew32s.lib) # static, non-debug (Release)
-    else ()
-      set(GLEW_LIB_SEARCH_NAME glew32.lib) # other. untested with OpenSCAD
+  set(GLEW_FOUND 0 CACHE STRING "Set to 1 if GLEW is found, 0 otherwise")
+endif()
+
+if (NOT GLEW_FOUND)
+  include(FindPkgConfig.cmake)
+  if (PKG_CONFIG_FOUND)
+    message(STATUS "Doing pkg config glew check...")
+    pkg_search_module(GLEW glew)
+    if (GLEW_FOUND)
+			set(GLEW_INCLUDE_DIR "${GLEW_INCLUDEDIR}")
+      set(GLEW_LIBRARY "-L${GLEW_LIBRARY_DIRS} -l${GLEW_LIBRARIES}")
     endif()
-  else () # GCC
-    set(GLEW_LIB_SEARCH_NAME "libglew32s.a")
-  endif ()
-
-  if (WIN32)
-    find_path(GLEW_INCLUDE_DIR GL/glew.h
-      $ENV{PROGRAMFILES}/GLEW/include
-      ${PROJECT_SOURCE_DIR}/src/nvgl/glew/include
-      DOC "The directory where GL/glew.h resides")
-    find_library(GLEW_LIBRARY
-      NAMES ${GLEW_LIB_SEARCH_NAME}
-      PATHS
-      $ENV{PROGRAMFILES}/GLEW/lib
-      ${PROJECT_SOURCE_DIR}/src/nvgl/glew/bin
-      ${PROJECT_SOURCE_DIR}/src/nvgl/glew/lib
-      DOC "The GLEW library")
-  else (WIN32)
-    find_path(GLEW_INCLUDE_DIR GL/glew.h
-      PATHS /usr/include /usr/local/include /usr/pkg/include
-      NO_DEFAULT_PATH
-      DOC "The directory where GL/glew.h resides")
-    find_library(GLEW_LIBRARY
-      NAMES GLEW glew
-      PATHS /usr/lib /usr/local/lib /usr/pkg/lib
-      NO_DEFAULT_PATH
-      DOC "The GLEW library")
-  endif (WIN32)
-
-  if (GLEW_INCLUDE_DIR)
-    set(GLEW_FOUND 1 CACHE STRING "Set to 1 if GLEW is found, 0 otherwise")
-    message(STATUS "GLEW include found in " ${GLEW_INCLUDE_DIR} )
-    message(STATUS "GLEW library found in " ${GLEW_LIBRARY} )
-  else()
-    set(GLEW_FOUND 0 CACHE STRING "Set to 1 if GLEW is found, 0 otherwise")
   endif()
 endif()
+
+if (NOT GLEW_FOUND)
+  message(FATAL_ERROR "GLEW not found")
+endif()