Fix linkage against modern GLVND OpenGL implementation on GNU/Linux.

deathkiller · May 22, 2024 · ffc917c · ffc917c
1 parent aa97e2a
commit ffc917c
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Showing 2 changed files with 13 additions and 1 deletion.
diff --git a/cmake/ncine_compiler_options.cmake b/cmake/ncine_compiler_options.cmake
@@ -202,4 +202,8 @@ else() # GCC and LLVM
 			target_link_libraries(${NCINE_APP} PRIVATE dl)
 		endif()
 	endif()
+
+	if(NOT ANDROID AND NOT APPLE)
+		target_link_libraries(${NCINE_APP} PUBLIC ${OpenGL_LIBRARY})
+	endif()
 endif()
diff --git a/cmake/ncine_imported_targets.cmake b/cmake/ncine_imported_targets.cmake
@@ -207,7 +207,15 @@ elseif(NOT ANDROID AND NOT NCINE_BUILD_ANDROID) # GCC and LLVM
 		find_package(GLEW)
 	endif()
 	if(NOT NINTENDO_SWITCH)
-		find_package(OpenGL REQUIRED)
+		find_package(OpenGL QUIET)
+		if(OpenGL_FOUND)
+			message(STATUS "Using legacy GLX OpenGL implementation")
+		else(OpenGL_FOUND)
+			# If we couldn't find old GLX package, try to use modern libglvnd libOpenGL.so instead.
+			message(STATUS "Using modern GLVND OpenGL implementation")
+			FIND_LIBRARY(OpenGL_LIBRARY OpenGL)
+			SET(EXTRA_LIBS ${OpenGL_LIBRARY})
+		endif(OpenGL_FOUND)
 	endif()
 	if(NCINE_ARM_PROCESSOR)
 		include(check_atomic)