Add unit tests for the GRIB plugin.

Author: sebastien-rosset

plugins/grib_pi/tests/CMakeLists.txt

@@ -13,6 +13,35 @@ if (NOT DEFINED wxWidgets_USE_FILE)
     set(BUILD_SHARED_LIBS TRUE)
     find_package(wxWidgets REQUIRED)
 endif ()
+
+# Handle Windows-specific bzip2
+if(WIN32)
+    target_include_directories(grib_pi_tests
+        PRIVATE
+        ${CMAKE_SOURCE_DIR}/plugins/grib_pi/src/bzip2
+    )
+    target_link_libraries(grib_pi_tests PRIVATE LIB_BZIP)
+endif()
+
+# Handle OpenGL/GLEW dependencies only if OpenGL is enabled
+if(OCPN_USE_GL)
+    if(WIN32)
+        target_include_directories(grib_pi_tests
+            PRIVATE
+            ${CMAKE_SOURCE_DIR}/cache/buildwin/include/glew
+        )
+        target_link_libraries(grib_pi_tests
+            PRIVATE
+            ${CMAKE_SOURCE_DIR}/cache/buildwin/glew32.lib
+        )
+    elseif(UNIX AND NOT APPLE)
+        find_package(OpenGL REQUIRED)
+        find_package(GLEW REQUIRED)
+        target_link_libraries(grib_pi_tests PRIVATE ${OPENGL_LIBRARIES} GLEW::GLEW)
+    endif()
+endif()
+
+
 include(${wxWidgets_USE_FILE})
 
 # Define test source files
@@ -41,15 +70,6 @@ target_include_directories(grib_pi_tests
     ${wxWidgets_INCLUDE_DIRS}
 )
 
-# Add Windows-specific dependencies
-if(WIN32)
-    target_include_directories(grib_pi_tests
-        PRIVATE
-        ${CMAKE_SOURCE_DIR}/plugins/grib_pi/src/bzip2
-    )
-    target_link_libraries(grib_pi_tests PRIVATE LIB_BZIP)
-endif()
-
 # Link libraries
 target_link_libraries(grib_pi_tests
     PRIVATE