[build] Making `config.h` fully available to CMake users (#4044)

* Create ParseConfigHeader.cmake

This script parses the config.h file to automate the process of exposing the configuration flags and configuration values found in the latter.

* Update CompileDefinitions.cmake

Makes use of the new functionality found in ParseConfigHeader.cmake to make things consistent.

* Update CMakeOptions.txt

Makes use of the new functionality found in ParseConfigHeader.cmake to make things consistent.

* Update CMakeLists.txt

Changes required to make possible building raylib for web on Windows 10.

* Update LibraryConfigurations.cmake

Removes a warning that linker-only flags were being passed to the compiler, which is in accordance to https://emscripten.org/docs/tools_reference/settings_reference.html.

* Update CMakeOptions.txt

Removed clutter.

* Update CompileDefinitions.cmake

Removed clutter.

* Update CompileDefinitions.cmake

Some applications might check for PLATFORM_WEB instead of __EMSCRIPTEN__.

* Update CompileDefinitions.cmake

Reverting

* Update CMakeLists.txt

USE_AUDIO is redundant in the presence of the already existent and more descriptive SUPPORT_MODULE_RAUDIO.

* Update CompileDefinitions.cmake

USE_AUDIO is redundant in the presence of the already existent and more descriptive SUPPORT_MODULE_RAUDIO.

* Update ParseConfigHeader.cmake

* Revert "Update CMakeLists.txt"

This reverts commit 1785fc06b5b89e65515cea3afd3e3c095f15e350.

* Revert "Update CompileDefinitions.cmake"

This reverts commit 62f9a3a0ea21af7bd0a1ab74d10a305fca2a5695.

* Revert "Update CMakeLists.txt"

This reverts commit 3e7912144edc5c69c53ed5a9515ae21d66937963.

* Revert "Update LibraryConfigurations.cmake"

This reverts commit bcc4310c4960c200c340671caa298983340ea386.

1 files changed, 13 insertions, 117 deletions

diff --git a/cmake/CompileDefinitions.cmake b/cmake/CompileDefinitions.cmake
index cc8324c4..0acbe2fa 100644
--- a/cmake/CompileDefinitions.cmake
+++ b/cmake/CompileDefinitions.cmake
@@ -3,126 +3,22 @@ target_compile_definitions("raylib" PUBLIC "${PLATFORM_CPP}")
 target_compile_definitions("raylib" PUBLIC "${GRAPHICS}")
 
 function(define_if target variable)
-    if (${${variable}})
+    if(${${variable}})
         message(STATUS "${variable}=${${variable}}")
-        target_compile_definitions(${target} PUBLIC "${variable}")
-    endif ()
+        target_compile_definitions(${target} PRIVATE "${variable}")
+    endif()
 endfunction()
 
-if (${CUSTOMIZE_BUILD})
-    target_compile_definitions("raylib" PUBLIC EXTERNAL_CONFIG_FLAGS)
+if(${CUSTOMIZE_BUILD})
+    target_compile_definitions("raylib" PRIVATE EXTERNAL_CONFIG_FLAGS)
     define_if("raylib" USE_AUDIO)
-    define_if("raylib" SUPPORT_MODULE_RSHAPES)
-    define_if("raylib" SUPPORT_MODULE_RTEXTURES)
-    define_if("raylib" SUPPORT_MODULE_RTEXT)
-    define_if("raylib" SUPPORT_MODULE_RMODELS)
-    define_if("raylib" SUPPORT_MODULE_RAUDIO)
-    define_if("raylib" SUPPORT_CAMERA_SYSTEM)
-    define_if("raylib" SUPPORT_GESTURES_SYSTEM)
-    define_if("raylib" SUPPORT_MOUSE_GESTURES)
-    define_if("raylib" SUPPORT_SSH_KEYBOARD_RPI)
-    define_if("raylib" SUPPORT_DEFAULT_FONT)
-    define_if("raylib" SUPPORT_SCREEN_CAPTURE)
-    define_if("raylib" SUPPORT_GIF_RECORDING)
-    define_if("raylib" SUPPORT_BUSY_WAIT_LOOP)
-    define_if("raylib" SUPPORT_EVENTS_WAITING)
-    define_if("raylib" SUPPORT_WINMM_HIGHRES_TIMER)
-    define_if("raylib" SUPPORT_COMPRESSION_API)
-    define_if("raylib" SUPPORT_EVENTS_AUTOMATION)
-    define_if("raylib" SUPPORT_CUSTOM_FRAME_CONTROL)
-    define_if("raylib" SUPPORT_QUADS_DRAW_MODE)
-    define_if("raylib" SUPPORT_IMAGE_EXPORT)
-    define_if("raylib" SUPPORT_IMAGE_GENERATION)
-    define_if("raylib" SUPPORT_IMAGE_MANIPULATION)
-    define_if("raylib" SUPPORT_FILEFORMAT_PNG)
-    define_if("raylib" SUPPORT_FILEFORMAT_DDS)
-    define_if("raylib" SUPPORT_FILEFORMAT_HDR)
-    define_if("raylib" SUPPORT_FILEFORMAT_PIC)
-    define_if("raylib" SUPPORT_FILEFORMAT_PNM)
-    define_if("raylib" SUPPORT_FILEFORMAT_KTX)
-    define_if("raylib" SUPPORT_FILEFORMAT_ASTC)
-    define_if("raylib" SUPPORT_FILEFORMAT_BMP)
-    define_if("raylib" SUPPORT_FILEFORMAT_TGA)
-    define_if("raylib" SUPPORT_FILEFORMAT_JPG)
-    define_if("raylib" SUPPORT_FILEFORMAT_GIF)
-    define_if("raylib" SUPPORT_FILEFORMAT_QOI)
-    define_if("raylib" SUPPORT_FILEFORMAT_PSD)
-    define_if("raylib" SUPPORT_FILEFORMAT_PKM)
-    define_if("raylib" SUPPORT_FILEFORMAT_PVR)
-    define_if("raylib" SUPPORT_FILEFORMAT_SVG)
-    define_if("raylib" SUPPORT_FILEFORMAT_FNT)
-    define_if("raylib" SUPPORT_FILEFORMAT_TTF)
-    define_if("raylib" SUPPORT_TEXT_MANIPULATION)
-    define_if("raylib" SUPPORT_MESH_GENERATION)
-    define_if("raylib" SUPPORT_FILEFORMAT_OBJ)
-    define_if("raylib" SUPPORT_FILEFORMAT_MTL)
-    define_if("raylib" SUPPORT_FILEFORMAT_IQM)
-    define_if("raylib" SUPPORT_FILEFORMAT_GLTF)
-    define_if("raylib" SUPPORT_FILEFORMAT_VOX)
-    define_if("raylib" SUPPORT_FILEFORMAT_M3D)
-    define_if("raylib" SUPPORT_FILEFORMAT_WAV)
-    define_if("raylib" SUPPORT_FILEFORMAT_OGG)
-    define_if("raylib" SUPPORT_FILEFORMAT_XM)
-    define_if("raylib" SUPPORT_FILEFORMAT_MOD)
-    define_if("raylib" SUPPORT_FILEFORMAT_MP3)
-    define_if("raylib" SUPPORT_FILEFORMAT_QOA)
-    define_if("raylib" SUPPORT_FILEFORMAT_FLAC)
-    define_if("raylib" SUPPORT_STANDARD_FILEIO)
-    define_if("raylib" SUPPORT_TRACELOG)
 
-    if (UNIX AND NOT APPLE)
-        target_compile_definitions("raylib" PUBLIC "MAX_FILEPATH_LENGTH=4096")
-    else ()
-        target_compile_definitions("raylib" PUBLIC "MAX_FILEPATH_LENGTH=512")
-    endif ()
-
-    target_compile_definitions("raylib" PUBLIC "MAX_GAMEPADS=4")
-    target_compile_definitions("raylib" PUBLIC "MAX_GAMEPAD_AXIS=8")
-    target_compile_definitions("raylib" PUBLIC "MAX_GAMEPAD_BUTTONS=32")
-    target_compile_definitions("raylib" PUBLIC "MAX_TOUCH_POINTS=10")
-    target_compile_definitions("raylib" PUBLIC "MAX_KEY_PRESSED_QUEUE=16")
-
-    target_compile_definitions("raylib" PUBLIC "STORAGE_DATA_FILE=\"storage.data\"")
-    target_compile_definitions("raylib" PUBLIC "MAX_CHAR_PRESSED_QUEUE=16")
-    target_compile_definitions("raylib" PUBLIC "MAX_DECOMPRESSION_SIZE=64")
-
-    if (${GRAPHICS} MATCHES "GRAPHICS_API_OPENGL_33" OR ${GRAPHICS} MATCHES "GRAPHICS_API_OPENGL_11")
-        target_compile_definitions("raylib" PUBLIC "DEFAULT_BATCH_BUFFER_ELEMENTS=8192")
-    elseif (${GRAPHICS} MATCHES "GRAPHICS_API_OPENGL_ES2")
-        target_compile_definitions("raylib" PUBLIC "DEFAULT_BATCH_BUFFER_ELEMENTS=2048")
-    endif ()
-
-    target_compile_definitions("raylib" PUBLIC "DEFAULT_BATCH_DRAWCALLS=256")
-    target_compile_definitions("raylib" PUBLIC "MAX_MATRIX_STACK_SIZE=32")
-    target_compile_definitions("raylib" PUBLIC "MAX_SHADER_LOCATIONS=32")
-    target_compile_definitions("raylib" PUBLIC "MAX_MATERIAL_MAPS=12")
-    target_compile_definitions("raylib" PUBLIC "RL_CULL_DISTANCE_NEAR=0.01")
-    target_compile_definitions("raylib" PUBLIC "RL_CULL_DISTANCE_FAR=1000.0")
-
-    target_compile_definitions("raylib" PUBLIC "RL_DEFAULT_SHADER_ATTRIB_LOCATION_POSITION=0")
-    target_compile_definitions("raylib" PUBLIC "RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD=1")
-    target_compile_definitions("raylib" PUBLIC "RL_DEFAULT_SHADER_ATTRIB_LOCATION_NORMAL=2")
-    target_compile_definitions("raylib" PUBLIC "RL_DEFAULT_SHADER_ATTRIB_LOCATION_COLOR=3")
-    target_compile_definitions("raylib" PUBLIC "RL_DEFAULT_SHADER_ATTRIB_LOCATION_TANGENT=4")
-    target_compile_definitions("raylib" PUBLIC "RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD2=5")
-
-    target_compile_definitions("raylib" PUBLIC "RL_DEFAULT_SHADER_ATTRIB_NAME_POSITION=\"vertexPosition\"")
-    target_compile_definitions("raylib" PUBLIC "RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD=\"vertexTexCoord\"")
-    target_compile_definitions("raylib" PUBLIC "RL_DEFAULT_SHADER_ATTRIB_NAME_NORMAL=\"vertexNormal\"")
-    target_compile_definitions("raylib" PUBLIC "RL_DEFAULT_SHADER_ATTRIB_NAME_COLOR=\"vertexColor\"")
-    target_compile_definitions("raylib" PUBLIC "RL_DEFAULT_SHADER_ATTRIB_NAME_TANGENT=\"vertexTangent\"")
-    target_compile_definitions("raylib" PUBLIC "RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD2=\"vertexTexCoord2\"")
-
-    target_compile_definitions("raylib" PUBLIC "MAX_TEXT_BUFFER_LENGTH=1024")
-    target_compile_definitions("raylib" PUBLIC "MAX_TEXT_UNICODE_CHARS=512")
-    target_compile_definitions("raylib" PUBLIC "MAX_TEXTSPLIT_COUNT=128")
-
-    target_compile_definitions("raylib" PUBLIC "AUDIO_DEVICE_FORMAT=ma_format_f32")
-    target_compile_definitions("raylib" PUBLIC "AUDIO_DEVICE_CHANNELS=2")
-    target_compile_definitions("raylib" PUBLIC "AUDIO_DEVICE_SAMPLE_RATE=44100")
-    target_compile_definitions("raylib" PUBLIC "DEFAULT_AUDIO_BUFFER_SIZE=4096")
-
-    target_compile_definitions("raylib" PUBLIC "MAX_TRACELOG_MSG_LENGTH=128")
-    target_compile_definitions("raylib" PUBLIC "MAX_UWP_MESSAGES=512")
-endif ()
+    foreach(FLAG IN LISTS CONFIG_HEADER_FLAGS)
+        string(REGEX MATCH "([^=]+)=(.+)" _ ${FLAG})
+        define_if("raylib" ${CMAKE_MATCH_1})
+    endforeach()
 
+    foreach(VALUE IN LISTS CONFIG_HEADER_VALUES)
+        target_compile_definitions("raylib" PRIVATE ${VALUE})
+    endforeach()
+endif()