From 3a2e176e5922523c8f931db83d4d99c2fff1e12f Mon Sep 17 00:00:00 2001
From: Mario Liebisch <mario.liebisch@gmail.com>
Date: Sat, 23 Jul 2016 12:57:36 +0200
Subject: [PATCH] Android: Readded support for libc++ and use it as the
 standard STL

---
 CMakeLists.txt                           |  2 +-
 cmake/toolchains/android.toolchain.cmake | 27 +++++++++++++++++++++++-
 examples/android/jni/Application.mk      |  2 +-
 3 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index fb320b0b..deda6250 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,7 +24,7 @@ set(ANDROID_NATIVE_API_LEVEL ${ANDROID_API_MIN})
 sfml_set_option(ANDROID_NDK "$ENV{ANDROID_NDK}" PATH "Path to the Android NDK")
 
 # define the STL implementation to be used
-sfml_set_option(ANDROID_STL stlport_shared STRING "Choose the STL implementation to be used (experimental)")
+sfml_set_option(ANDROID_STL c++_shared STRING "Choose the STL implementation to be used (experimental)")
 
 # default the ABI to ARM v7a for hardware floating point
 if(NOT ANDROID_ABI)
diff --git a/cmake/toolchains/android.toolchain.cmake b/cmake/toolchains/android.toolchain.cmake
index 5573c79c..d0fdf005 100644
--- a/cmake/toolchains/android.toolchain.cmake
+++ b/cmake/toolchains/android.toolchain.cmake
@@ -154,6 +154,8 @@
 #                          Implies -frtti -fno-exceptions.
 #                          Available for NDK r7b and newer.
 #                          Silently degrades to gnustl_static if not available.
+#        c++_static     -> Use libc++ as a static library.
+#        c++_shared     -> Use libc++ as a shared library.
 #
 #    ANDROID_STL_FORCE_FEATURES=ON - turn rtti and exceptions support based on
 #      chosen runtime. If disabled, then the user is responsible for settings
@@ -833,7 +835,7 @@ set( ANDROID_STL_FORCE_FEATURES ON CACHE BOOL "automatically configure rtti and
 mark_as_advanced( ANDROID_STL ANDROID_STL_FORCE_FEATURES )
 
 if( BUILD_WITH_ANDROID_NDK )
- if( NOT "${ANDROID_STL}" MATCHES "^(none|system|system_re|gabi\\+\\+_static|gabi\\+\\+_shared|stlport_static|stlport_shared|gnustl_static|gnustl_shared)$")
+ if( NOT "${ANDROID_STL}" MATCHES "^(none|system|system_re|gabi\\+\\+_static|gabi\\+\\+_shared|stlport_static|stlport_shared|gnustl_static|gnustl_shared|c\\+\\+_static|c\\+\\+_shared)$")
   message( FATAL_ERROR "ANDROID_STL is set to invalid value \"${ANDROID_STL}\".
 The possible values are:
   none           -> Do not configure the runtime.
@@ -845,6 +847,8 @@ The possible values are:
   stlport_shared -> Use the STLport runtime as a shared library.
   gnustl_static  -> (default) Use the GNU STL as a static library.
   gnustl_shared  -> Use the GNU STL as a shared library.
+  c++_static     -> Use libc++ as a static library.
+  c++_shared     -> Use libc++ as a shared library.
 " )
  endif()
 elseif( BUILD_WITH_STANDALONE_TOOLCHAIN )
@@ -1026,6 +1030,27 @@ if( BUILD_WITH_ANDROID_NDK )
   else()
    set( __libstl                "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" )
   endif()
+ elseif( ANDROID_STL MATCHES "c\\+\\+_shared" OR ANDROID_STL MATCHES "c\\+\\+_static" )
+  set( ANDROID_EXCEPTIONS       ON )
+  set( ANDROID_RTTI             ON )
+  set( ANDROID_CXX_ROOT     "${ANDROID_NDK}/sources/cxx-stl/" )
+  set( ANDROID_LLVM_ROOT    "${ANDROID_CXX_ROOT}/llvm-libc++" )
+  if( X86 )
+   set( ANDROID_ABI_INCLUDE_DIRS "${ANDROID_CXX_ROOT}/gabi++/include" )
+  else()
+   set( ANDROID_ABI_INCLUDE_DIRS "${ANDROID_CXX_ROOT}/llvm-libc++abi/include" )
+  endif()
+  set( ANDROID_STL_INCLUDE_DIRS     "${ANDROID_LLVM_ROOT}/libcxx/include"
+                                    "${ANDROID_ABI_INCLUDE_DIRS}" )
+  # android support sfiles
+  include_directories ( SYSTEM ${ANDROID_NDK}/sources/android/support/include )
+  if( ANDROID_STL MATCHES "c\\+\\+_shared" AND EXISTS "${ANDROID_LLVM_ROOT}/libs/${ANDROID_NDK_ABI_NAME}/libc++_shared.so" )
+   set( __libstl "${ANDROID_LLVM_ROOT}/libs/${ANDROID_NDK_ABI_NAME}/libc++_shared.so" )
+  elseif( ANDROID_STL MATCHES "c\\+\\+_static" AND EXISTS "${ANDROID_LLVM_ROOT}/libs/${ANDROID_NDK_ABI_NAME}/libc++_static.a" )
+   set( __libstl "${ANDROID_LLVM_ROOT}/libs/${ANDROID_NDK_ABI_NAME}/libc++_static.a" )
+  else()
+   message( "c++ library doesn't exist" )
+  endif()
  else()
   message( FATAL_ERROR "Unknown runtime: ${ANDROID_STL}" )
  endif()
diff --git a/examples/android/jni/Application.mk b/examples/android/jni/Application.mk
index 7b0c3855..71828c8d 100644
--- a/examples/android/jni/Application.mk
+++ b/examples/android/jni/Application.mk
@@ -1,5 +1,5 @@
 NDK_TOOLCHAIN_VERSION := 4.9
 APP_PLATFORM := android-9
-APP_STL := stlport_shared
+APP_STL := c++_shared
 APP_ABI := armeabi-v7a
 APP_MODULES := sfml-activity sfml-example