diff options
| author | Albrecht Schlosser <albrechts.fltk@online.de> | 2024-05-01 17:31:17 +0200 |
|---|---|---|
| committer | Albrecht Schlosser <albrechts.fltk@online.de> | 2024-05-13 15:19:27 +0200 |
| commit | bc63ea7629c8c3c4248a777d1c0325ae800556e0 (patch) | |
| tree | 257e30371623a35d8b7fb92e9abf83ce7cf8b856 /examples/OpenGL3test.cxx | |
| parent | d1ea57bc7a04ea611dec555ca310d5e572a4b60e (diff) | |
CMake: improve linking OpenGL3 example programs (#959)
- Remove find_library(LIB_GLEW ...) from 'resources.cmake'
- Use the variable FLTK_GLEW_DIR to "find" a user supplied GLEW library
for OpenGL3 example programs (examples/OpenGL3*.cxx).
Both static and shared libs (DLLs) are supported, but the static
library is preferred to avoid DLL dependencies.
- Define preprocessor macro 'GLEW_STATIC' by CMake compile definitions
if and only if the static glew library (glew32s) was found and linked.
The previous code defined 'GLEW_STATIC' unconditionally in the source
code which led to undefined references if a shared lib (DLL) was used.
Diffstat (limited to 'examples/OpenGL3test.cxx')
| -rw-r--r-- | examples/OpenGL3test.cxx | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/examples/OpenGL3test.cxx b/examples/OpenGL3test.cxx index deaf2ec8f..c9f0d59e5 100644 --- a/examples/OpenGL3test.cxx +++ b/examples/OpenGL3test.cxx @@ -25,9 +25,7 @@ #if defined(__APPLE__) # include <OpenGL/gl3.h> // defines OpenGL 3.0+ functions #else -# if defined(_WIN32) -# define GLEW_STATIC 1 -# endif +// Note: GLEW_STATIC is defined by CMake if the static lib is linked # include <GL/glew.h> #endif #include <FL/gl.h> // for gl_texture_reset() |