Revert "CMake: Build glfw separately with CMake"

This reverts commit 0adb4b67de6dfe3f7a0a557130dffc3b8f4d6a43,
because it failed tests for Alien::raylib:
http://www.cpantesters.org/distro/A/Alien-raylib.html

.travis.yml

@@ -18,18 +18,19 @@ matrix:
     - os: linux
       env: ARCH=amd64 GLFW=SYSTEM
       sudo: required
-    - os: linux
-      env: USE_WAYLAND=ON ARCH=amd64
-      sudo: required
-      addons:
-          apt:
-              packages:
-                  - libwayland-dev
-                  - libxkbcommon-dev
-                  - libegl1-mesa-dev
     - os: osx
       env: ARCH=universal
 
+#   - os: linux
+#     env: USE_WAYLAND=ON ARCH=amd64
+#     sudo: required
+#     addons:
+#         apt:
+#             packages:
+#                 - libwayland-dev
+#                 - libxkbcommon-dev
+#                 - libegl1-mesa-dev
+
 before_script:
 
 before_install:
@@ -37,12 +38,11 @@ before_install:
       sudo apt-get install -y gcc-multilib
                               libasound2-dev:$ARCH
                               libxcursor-dev:$ARCH libxinerama-dev:$ARCH mesa-common-dev:$ARCH
-                              libx11-dev:$ARCH libxrandr-dev:$ARCH libxrandr2:$ARCH libxi-dev:$ARCH
+                              libx11-dev:$ARCH libxrandr-dev:$ARCH libxi-dev:$ARCH
                               libgl1-mesa-dev:$ARCH libglu1-mesa-dev:$ARCH;
-      if [ "$ARCH" == "i386" ]; then
-        export CMAKE_ARCH_ARGS='-DCMAKE_C_FLAGS=-m32 -DCMAKE_SYSTEM_LIBRARY_PATH=/usr/lib/i386-linux-gnu';
-      fi;
       export RAYLIB_PACKAGE_SUFFIX="-Linux-$ARCH";
+      if [ "$ARCH" == "i386" ]; then export CFLAGS="-m32"; fi;
+      if [ "$ARCH" == "amd64" ]; then export CFLAGS="-m64"; fi;
       if [ "$GLFW" == "SYSTEM" ]; then
         wget 'http://ftp.de.debian.org/debian/pool/main/g/glfw3/libglfw3_3.2.1-1_amd64.deb';
         wget 'http://ftp.de.debian.org/debian/pool/main/g/glfw3/libglfw3-dev_3.2.1-1_amd64.deb';

src/CMakeLists.txt

@@ -10,28 +10,16 @@ include("CMakeOptions.txt")
 configure_file(config.h.in ${CMAKE_BINARY_DIR}/cmake/config.h)
 include_directories(${CMAKE_BINARY_DIR})
 
-if(MACOS_FATLIB)
-    if (CMAKE_OSX_ARCHITECTURES)
-        message(FATAL_ERROR "User supplied -DCMAKE_OSX_ARCHITECTURES overrides -DMACOS_FATLIB=ON")
-    else()
-        SET(CMAKE_OSX_ARCHITECTURES "x86_64;i386")
-    endif()
-endif()
-
-if(NOT glfw3_FOUND)
-  set(GLFW_BUILD_DOCS OFF CACHE BOOL "" FORCE)
-  set(GLFW_BUILD_TESTS OFF CACHE BOOL "" FORCE)
-  set(GLFW_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
-  set(GLFW_USE_WAYLAND ${USE_WAYLAND} CACHE BOOL "" FORCE)
-
-  add_subdirectory(external/glfw)
-endif()
-
 include("../utils.cmake")
 
 # Get the sources together
 file(GLOB raylib_sources *.c)
-list(REMOVE_ITEM raylib_sources ${CMAKE_CURRENT_SOURCE_DIR}/rglfw.c)
+
+if(glfw3_FOUND)
+  list(REMOVE_ITEM raylib_sources ${CMAKE_CURRENT_SOURCE_DIR}/rglfw.c)
+else()
+  include_directories(external/glfw/include)
+endif()
 
 if(USE_AUDIO)
   file(GLOB stb_vorbis external/stb_vorbis.c)
@@ -63,6 +51,7 @@ if(${PLATFORM} MATCHES "Desktop")
   # See: https://github.com/raysan5/raylib/issues/341
   if(APPLE)
     set(GRAPHICS "GRAPHICS_API_OPENGL_33")
+    set_source_files_properties(rglfw.c PROPERTIES COMPILE_FLAGS "-x objective-c")
     link_libraries("${LIBS_PRIVATE}")
   elseif(WIN32)
     add_definitions(-D_CRT_SECURE_NO_WARNINGS)
@@ -87,6 +76,14 @@ elseif(${PLATFORM} MATCHES "Raspberry Pi")
   set(GRAPHICS "GRAPHICS_API_OPENGL_ES2")
 endif()
 
+if(MACOS_FATLIB)
+    if (CMAKE_OSX_ARCHITECTURES)
+        message(FATAL_ERROR "User supplied -DCMAKE_OSX_ARCHITECTURES overrides -DMACOS_FATLIB=ON")
+    else()
+        SET(CMAKE_OSX_ARCHITECTURES "x86_64;i386")
+    endif()
+endif()
+
 # Which platform?
 if(${PLATFORM} MATCHES "PLATFORM_DESKTOP")
 
@@ -103,7 +100,7 @@ if(${PLATFORM} MATCHES "PLATFORM_DESKTOP")
     set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
     set(CMAKE_MACOSX_RPATH ON)
 
-    target_link_libraries(${RAYLIB}_shared ${LIBS_PRIVATE} glfw)
+    target_link_libraries(${RAYLIB}_shared ${LIBS_PRIVATE})
     if (UNIX AND ${FILESYSTEM_LACKS_SYMLINKS})
       MESSAGE(WARNING "Can't version UNIX shared library on file system without symlink support")
     else()
@@ -140,7 +137,6 @@ if(${PLATFORM} MATCHES "PLATFORM_DESKTOP")
     )
 
     set(PKG_CONFIG_LIBS_PRIVATE ${__PKG_CONFIG_LIBS_PRIVATE})
-    target_link_libraries(${RAYLIB} glfw)
 
     if (WITH_PIC)
       set_property(TARGET ${RAYLIB} PROPERTY POSITION_INDEPENDENT_CODE ON)

utils.cmake

@@ -17,24 +17,47 @@ if(APPLE)
 elseif(WIN32)
   # no pkg-config --static on Windows yet...
 else()
+  if(USE_WAYLAND)
+    set(_GLFW_WAYLAND 1)
+  else()
+    set(_GLFW_X11 1)
+  endif()
+
   find_library(pthread NAMES pthread)
   find_package(OpenGL QUIET)
   if ("${OPENGL_LIBRARIES}" STREQUAL "")
-    set(OPENGL_LIBRARIES "GL")
-  endif()
-
-  include_directories(${OPENGL_INCLUDE_DIR})
-
-  if ("${CMAKE_SYSTEM_NAME}" MATCHES "(Net|Open)BSD")
-    find_library(OSS_LIBRARY ossaudio)
-  endif()
-
-  set(LIBS_PRIVATE m pthread ${OPENGL_LIBRARIES} ${OSS_LIBRARY})
-  # TODO: maybe read those out of glfw's cmake config?
-  if(USE_WAYLAND)
-    set(LIBS_PRIVATE ${LIBS_PRIVATE} wayland-client wayland-cursor wayland-egl)
+    if(NOT USE_WAYLAND)
+      # CFLAGS=-m32 cmake on Linux fails for some reason, so fallback to hardcoding
+      set(LIBS_PRIVATE m pthread GL X11 Xrandr Xinerama Xi Xxf86vm Xcursor)
+    else()
+      # CFLAGS=-m32 cmake on Linux fails for some reason, so fallback to hardcoding
+      set(LIBS_PRIVATE m pthread GL wayland-client wayland-cursor wayland-egl)
+    endif()
   else()
-    set(LIBS_PRIVATE ${LIBS_PRIVATE} X11 Xrandr Xinerama Xi Xxf86vm Xcursor)
+    if(NOT USE_WAYLAND)
+      find_package(X11 REQUIRED X11)
+      find_library(XRANDR_LIBRARY Xrandr)
+      find_library(XI_LIBRARY Xi)
+      find_library(XINERAMA_LIBRARY Xinerama)
+      find_library(XXF86VM_LIBRARY Xxf86vm)
+      find_library(XCURSOR_LIBRARY Xcursor)
+    else()
+      find_library(WAYLAND_CLIENT_LIBRARY wayland-client)
+      find_library(WAYLAND_CURSOR_LIBRARY wayland-cursor)
+      find_library(WAYLAND_EGL_LIBRARY wayland-egl)
+    endif()
+
+    include_directories(${OPENGL_INCLUDE_DIR})
+
+    if ("${CMAKE_SYSTEM_NAME}" MATCHES "(Net|Open)BSD")
+      find_library(OSS_LIBRARY ossaudio)
+    endif()
+
+    if(NOT USE_WAYLAND)
+      set(LIBS_PRIVATE m ${pthread} ${OPENGL_LIBRARIES} ${X11_LIBRARIES} ${XRANDR_LIBRARY} ${XINERAMA_LIBRARY} ${XI_LIBRARY} ${XXF86VM_LIBRARY} ${XCURSOR_LIBRARY} ${OSS_LIBRARY})
+    else()
+      set(LIBS_PRIVATE m ${pthread} ${OPENGL_LIBRARIES} ${WAYLAND_CLIENT_LIBRARY} ${WAYLAND_CURSOR_LIBRARY} ${WAYLAND_EGL_LIBRARY} ${OSS_LIBRARY})
+    endif()
   endif()
 endif()