CMake: Fix (Add?) Android support

Not sure if this ever worked, but now it at least compiles.
2018-05-20 23:03:04 +02:00 · 2018-05-20 23:03:04 +02:00 · ad8509732c
parent ff55af14f9
commit ad8509732c
4 changed files with 70 additions and 26 deletions
--- a/.travis.yml
+++ b/.travis.yml
@ -29,24 +29,39 @@ matrix:
                  - libegl1-mesa-dev
    - os: osx
      env: ARCH=universal
+    - os: linux
+      env: ARCH=arm64-android
+      sudo: required

 before_script:

 before_install:
+  - export PLATFORM=Desktop
  - if [ "$TRAVIS_OS_NAME" == "linux" ]; then
-      sudo apt-get install -y gcc-multilib
-                              libasound2-dev:$ARCH
-                              libxcursor-dev:$ARCH libxinerama-dev:$ARCH mesa-common-dev:$ARCH
-                              libx11-dev:$ARCH libxrandr-dev:$ARCH libxrandr2:$ARCH libxi-dev:$ARCH
-                              libgl1-mesa-dev:$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-$ARCH";
-      if [ "$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';
-        sudo dpkg -i libglfw3_3.2.1-1_amd64.deb libglfw3-dev_3.2.1-1_amd64.deb;
+      if [[ "$ARCH" == *-android ]]; then
+        export RAYLIB_PACKAGE_SUFFIX="-Android-arm64";
+        wget https://dl.google.com/android/repository/android-ndk-r17-linux-x86_64.zip;
+        unzip -qq android-ndk*.zip;
+        android-ndk*/build/tools/make_standalone_toolchain.py --arch arm64 --api 21 --install-dir /tmp/android-toolchain;
+        export PATH=/tmp/android-toolchain/bin:$PATH;
+        export PLATFORM=Android;
+        export CC=aarch64-linux-android-clang;
+        export CXX=aarch64-linux-android-clang++;
+      else
+        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
+                                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 [ "$GLFW" == "SYSTEM" ]; then
+          wget 'http://ftp.de.debian.org/debian/pool/main/g/glfw3/libglfw3_3.2.1-1_amd64.deb';
+          wget 'http://ftp.de.debian.org/debian/pool/main/g/glfw3/libglfw3-dev_3.2.1-1_amd64.deb';
+          sudo dpkg -i libglfw3_3.2.1-1_amd64.deb libglfw3-dev_3.2.1-1_amd64.deb;
+        fi;
      fi;
    fi
  - if [ "$TRAVIS_OS_NAME" == "osx" ]; then
@ -66,7 +81,7 @@ script:
      git checkout 1.12 && ./autogen.sh --prefix=/usr && make && sudo make install;
      popd;
    fi
-  - cmake $CMAKE_ARCH_ARGS -DMACOS_FATLIB=ON -DSTATIC=ON -DSHARED=ON -DBUILD_EXAMPLES=ON -DBUILD_GAMES=ON -DUSE_EXTERNAL_GLFW=IF_POSSIBLE -DUSE_WAYLAND=${USE_WAYLAND} ..
+  - cmake $CMAKE_ARCH_ARGS -DMACOS_FATLIB=ON -DSTATIC=ON -DSHARED=ON -DBUILD_EXAMPLES=ON -DBUILD_GAMES=ON -DUSE_EXTERNAL_GLFW=IF_POSSIBLE -DUSE_WAYLAND=${USE_WAYLAND} -DPLATFORM=${PLATFORM} ..
  - make VERBOSE=1
  - if [ "$GLFW" != "SYSTEM" ]; then make package; fi;
  - sudo make install
--- a/cmake/utils.cmake
+++ b/cmake/utils.cmake
@ -16,6 +16,9 @@ if(APPLE)
                   ${IOKIT_LIBRARY} ${COREFOUNDATION_LIBRARY} ${COREVIDEO_LIBRARY})
 elseif(WIN32)
  # no pkg-config --static on Windows yet...
+elseif(${PLATFORM} MATCHES "Android")
+  find_library(OPENGL_LIBRARY OpenGL)
+  set(LIBS_PRIVATE m log android EGL GLESv2 OpenSLES atomic c)
 else()
  find_library(pthread NAMES pthread)
  find_package(OpenGL QUIET)
@ -38,13 +41,15 @@ else()
  endif()
 endif()

-if(USE_EXTERNAL_GLFW STREQUAL "ON")
+if(${PLATFORM} MATCHES "Desktop")
+  if(USE_EXTERNAL_GLFW STREQUAL "ON")
    find_package(glfw3 3.2.1 REQUIRED)
-elseif(USE_EXTERNAL_GLFW STREQUAL "IF_POSSIBLE")
+  elseif(USE_EXTERNAL_GLFW STREQUAL "IF_POSSIBLE")
    find_package(glfw3 3.2.1 QUIET)
-endif()
-if (glfw3_FOUND)
-  set(LIBS_PRIVATE ${LIBS_PRIVATE} glfw)
+  endif()
+  if (glfw3_FOUND)
+    set(LIBS_PRIVATE ${LIBS_PRIVATE} glfw)
+  endif()
 endif()

 if(CMAKE_SYSTEM_NAME STREQUAL Linux)
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@ -11,6 +11,7 @@ include("CMakeOptions.txt")
 include(BuildType)
 configure_file(config.h.in ${CMAKE_BINARY_DIR}/cmake/config.h)
 include_directories(${CMAKE_BINARY_DIR})
+include_directories(SYSTEM .)

 if(MACOS_FATLIB)
    if (CMAKE_OSX_ARCHITECTURES)
@ -24,7 +25,7 @@ endif()
 file(GLOB raylib_sources *.c)
 list(REMOVE_ITEM raylib_sources ${CMAKE_CURRENT_SOURCE_DIR}/rglfw.c)

-if(NOT glfw3_FOUND)
+if(NOT glfw3_FOUND AND "${PLATFORM}" MATCHES "Desktop")
  set(GLFW_BUILD_DOCS OFF CACHE BOOL "" FORCE)
  set(GLFW_BUILD_TESTS OFF CACHE BOOL "" FORCE)
  set(GLFW_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
@ -53,6 +54,8 @@ else()
  set(sources ${raylib_sources})
 endif()

+include(AddIfFlagCompiles)
+
 ### Config options ###
 # Translate the config options to what raylib wants
 if(${PLATFORM} MATCHES "Desktop")
@ -92,14 +95,27 @@ elseif(${PLATFORM} MATCHES "Web")
 elseif(${PLATFORM} MATCHES "Android")
  set(PLATFORM "PLATFORM_ANDROID")
  set(GRAPHICS "GRAPHICS_API_OPENGL_ES2")
+  add_if_flag_compiles(-ffunction-sections CMAKE_C_FLAGS)
+  add_if_flag_compiles(-funwind-tables CMAKE_C_FLAGS)
+  add_if_flag_compiles(-fstack-protector-strong CMAKE_C_FLAGS)
+  set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+  add_if_flag_compiles(-Wa,--noexecstack CMAKE_C_FLAGS)
+  add_if_flag_compiles(-no-canonical-prefixes CMAKE_C_FLAGS)
+  add_definitions(-DANDROID -D__ANDROID_API__=21)
+  include_directories(external/android/native_app_glue )
+  set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--exclude-libs,libatomic.a -Wl,--build-id -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -Wl,--warn-shared-textrel -Wl,--fatal-warnings -uANativeActivity_onCreate")
+
 elseif(${PLATFORM} MATCHES "Raspberry Pi")
  set(PLATFORM "PLATFORM_RPI")
  set(GRAPHICS "GRAPHICS_API_OPENGL_ES2")
 endif()

 # Which platform?
-if(${PLATFORM} MATCHES "PLATFORM_DESKTOP")
+if(${PLATFORM} MATCHES "PLATFORM_WEB")
+  # For the web.
+  add_executable(${RAYLIB} ${sources})

+else()
  if(${SHARED})
    add_library(${RAYLIB}_shared SHARED ${sources})

@ -113,7 +129,10 @@ 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 ${GLFW_LIBRARIES})
+    target_link_libraries(${RAYLIB}_shared ${LIBS_PRIVATE})
+    if (${PLATFORM} MATCHES "Desktop")
+      target_link_libraries(${RAYLIB}_shared glfw ${GLFW_LIBRARIES})
+    endif()
    if (UNIX AND ${FILESYSTEM_LACKS_SYMLINKS})
      MESSAGE(WARNING "Can't version UNIX shared library on file system without symlink support")
    else()
@ -150,7 +169,9 @@ if(${PLATFORM} MATCHES "PLATFORM_DESKTOP")
    )

    set(PKG_CONFIG_LIBS_PRIVATE ${__PKG_CONFIG_LIBS_PRIVATE})
-    target_link_libraries(${RAYLIB} glfw ${GLFW_LIBRARIES})
+    if (${PLATFORM} MATCHES "Desktop")
+      target_link_libraries(${RAYLIB} glfw ${GLFW_LIBRARIES})
+    endif()

    if (WITH_PIC)
      set_property(TARGET ${RAYLIB} PROPERTY POSITION_INDEPENDENT_CODE ON)
@ -171,9 +192,6 @@ if(${PLATFORM} MATCHES "PLATFORM_DESKTOP")
  file(COPY "physac.h" DESTINATION ".")
  file(COPY "raymath.h" DESTINATION ".")
  file(COPY "audio.h" DESTINATION ".")
-elseif(${PLATFORM} MATCHES "PLATFORM_WEB")
-  # For the web.
-  add_executable(${RAYLIB} ${sources})
 endif()

 # Print the flags for the user
--- a/src/utils.c
+++ b/src/utils.c
@ -57,6 +57,12 @@
 #include <stdarg.h>                 // Required for: va_list, va_start(), vfprintf(), va_end()
 #include <string.h>                 // Required for: strlen(), strrchr(), strcmp()

+/* This should be in <stdio.h>, but Travis doesn't find it... */
+FILE *funopen(const void *cookie, int (*readfn)(void *, char *, int),
+              int (*writefn)(void *, const char *, int),
+              fpos_t (*seekfn)(void *, fpos_t, int), int (*closefn)(void *));
+
+
 #if defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI)
    #define STB_IMAGE_WRITE_IMPLEMENTATION
    #include "external/stb_image_write.h"   // Required for: stbi_write_bmp(), stbi_write_png()