SDL2 OpenGL ES examples do not work on Linux x86-64 about magnum-examples HOT 3 CLOSED

Hi,

thanks for the reports!

This particular error is, in fact, really related to static build. Are you sure you didn't link to static MagnumShaders library by accident? (For example because CMake found it sooner than the shared one -- look for MAGNUM_SHADERS_LIBRARY in CMakeCache.txt.) The original point with the example was to keep it as short as possible, but, yeah, that doesn't work with static build. The fix for static build is simple, just adding these three lines. I'll add these or find a way to avoid these inconveniences altogether.

Incidentally, I tested the OpenGEX importer on GCC 4.9 and 4.7 and it worked on both, so I expected it to work also on all versions in between. Guess I need to install 4.8 and test it also there, then :)

from magnum-examples.

Thanks. The demos compiled and worked when I deleted the caches and rebuilt all the projects, including the demos, with the STATIC_BUILD=OFF option. But I had to explicitly mention the libEGL library in the examples' CMake files because of undefined references to a specific EGL method.

Here is the type of errors I receive when building the OpenGEXImporter with 64-bit GCC 4.8.2 on Linux.

....../MagnumPlugins/OpenGexImporter/OpenDdl/parsers.cpp:328:52: error: redeclaration ‘Magnum::OpenDdl::Type Magnum::OpenDdl::Implementation::{anonymous}::typeFor() [with = unsigned char]’ differs in ‘constexpr’
#define _c(T) template<> constexpr Type typeFor() { return Type::T; }

I instead used Clang++ 3.4 to build the plug-ins.

from magnum-examples.

Okay, so:

• examples with static builds should be working now, no more group 'MagnumShaders' was not found messages
• EGL linking is now also done automatically
• OpenGEX plugin (and everything else) now builds also on GCC 4.8 without errors and test failures

Note that you need to pull new changes also from Corrade to make the fixes compilable.

Thanks for all the reports!

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