Merge bitcoin/bitcoin#22469: build: Add support for Android NDK r22+

acaac6e86a ci: Bump Android NDK to r22 which supports std::filesystem (Hennadii Stepanov)
cac7890386 build: Add support for Android NDK r22+ (Hennadii Stepanov)

Pull request description:

  This is required to support [`std::filesystem`](https://github.com/android/ndk/wiki/Changelog-r22#changes) on Android (see #20744).

  Fixes #22074.

ACKs for top commit:
  icota:
    re-tACK acaac6e86a

Tree-SHA512: ecbec374ee590c4cb30012210f1422d469e7e8b68989f9eb53d36b5feee150d31e6bd10e1fc4a2056fbf4f8f8513e435b446e5feaf21a3a4d09dfc561fb22e73

ci/test/00_setup_env_android.sh

@@ -16,7 +16,7 @@ export RUN_FUNCTIONAL_TESTS=false
 
 export ANDROID_API_LEVEL=28
 export ANDROID_BUILD_TOOLS_VERSION=28.0.3
-export ANDROID_NDK_VERSION=21.1.6352462
+export ANDROID_NDK_VERSION=22.1.7171670
 export ANDROID_TOOLS_URL=https://dl.google.com/android/repository/commandlinetools-linux-6609375_latest.zip
 export ANDROID_HOME="${DEPENDS_DIR}/SDKs/android"
 export ANDROID_NDK_HOME="${ANDROID_HOME}/ndk/${ANDROID_NDK_VERSION}"

depends/packages/qt.mk

@@ -9,7 +9,7 @@ $(package)_qt_libs=corelib network widgets gui plugins testlib
 $(package)_linguist_tools = lrelease lupdate lconvert
 $(package)_patches = qt.pro qttools_src.pro
 $(package)_patches += fix_qt_pkgconfig.patch mac-qmake.conf fix_no_printer.patch no-xlib.patch
-$(package)_patches+= fix_android_qmake_conf.patch fix_android_jni_static.patch dont_hardcode_pwd.patch
+$(package)_patches += support_new_android_ndks.patch fix_android_jni_static.patch dont_hardcode_pwd.patch
 $(package)_patches+= no_sdk_version_check.patch
 $(package)_patches+= fix_lib_paths.patch fix_android_pch.patch
 $(package)_patches+= qtbase-moc-ignore-gcc-macro.patch fix_limits_header.patch
@@ -224,7 +224,7 @@ define $(package)_preprocess_cmds
   patch -p1 -i $($(package)_patch_dir)/dont_hardcode_pwd.patch && \
   patch -p1 -i $($(package)_patch_dir)/fix_qt_pkgconfig.patch && \
   patch -p1 -i $($(package)_patch_dir)/fix_no_printer.patch && \
-  patch -p1 -i $($(package)_patch_dir)/fix_android_qmake_conf.patch && \
+  patch -p1 -i $($(package)_patch_dir)/support_new_android_ndks.patch && \
   patch -p1 -i $($(package)_patch_dir)/fix_android_jni_static.patch && \
   patch -p1 -i $($(package)_patch_dir)/fix_android_pch.patch && \
   patch -p1 -i $($(package)_patch_dir)/no-xlib.patch && \

depends/patches/qt/fix_android_pch.patch

@@ -1,6 +1,6 @@
 --- old/qtbase/mkspecs/common/android-base-head.conf
 +++ new/qtbase/mkspecs/common/android-base-head.conf
-@@ -73,6 +73,6 @@ CROSS_COMPILE = $$NDK_TOOLCHAIN_PATH/bin/$$NDK_TOOLS_PREFIX-
+@@ -72,6 +72,6 @@ CROSS_COMPILE = $$NDK_TOOLCHAIN_PATH/bin/$$NDK_TOOLS_PREFIX-
  QMAKE_PCH_OUTPUT_EXT    = .gch
 
  QMAKE_CFLAGS_PRECOMPILE       = -x c-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}

depends/patches/qt/fix_android_qmake_conf.patch

@@ -1,10 +0,0 @@
---- old/qtbase/mkspecs/android-clang/qmake.conf
-+++ new/qtbase/mkspecs/android-clang/qmake.conf
-@@ -47,7 +47,7 @@ ANDROID_STDCPP_PATH = $$ANDROID_SOURCES_CXX_STL_LIBDIR/libc++_shared.so
- ANDROID_USE_LLVM = true
- 
- exists($$ANDROID_SOURCES_CXX_STL_LIBDIR/libc++.so): \
--    ANDROID_CXX_STL_LIBS = -lc++
-+    ANDROID_CXX_STL_LIBS = -lc++_shared
- else: \
-     ANDROID_CXX_STL_LIBS = $$ANDROID_SOURCES_CXX_STL_LIBDIR/libc++.so.$$replace(ANDROID_PLATFORM, "android-", "")

depends/patches/qt/support_new_android_ndks.patch

@@ -0,0 +1,122 @@
+Follow Google's BuildSystemMaintainers doc to support future NDK releases.
+
+Upstream commit:
+ - Qt 5.14: 9b14950ff600a4ce5a8698b67ab38907c50417f1
+
+--- old/qtbase/mkspecs/android-clang/qmake.conf
++++ new/qtbase/mkspecs/android-clang/qmake.conf
+@@ -14,43 +14,29 @@
+ QMAKE_CC      = $$NDK_LLVM_PATH/bin/clang
+ QMAKE_CXX     = $$NDK_LLVM_PATH/bin/clang++
+ 
++# Follow https://android.googlesource.com/platform/ndk/+/ndk-release-r20/docs/BuildSystemMaintainers.md
++
+ equals(ANDROID_TARGET_ARCH, armeabi-v7a): \
+-    QMAKE_CFLAGS += -target armv7-none-linux-androideabi
+-else: equals(ANDROID_TARGET_ARCH, armeabi): \
+-    QMAKE_CFLAGS += -target armv5te-none-linux-androideabi
++    QMAKE_CFLAGS = -target armv7a-linux-androideabi$$replace(ANDROID_PLATFORM, "android-", "")
+ else: equals(ANDROID_TARGET_ARCH, arm64-v8a): \
+-    QMAKE_CFLAGS += -target aarch64-none-linux-android
++    QMAKE_CFLAGS = -target aarch64-linux-android$$replace(ANDROID_PLATFORM, "android-", "")
+ else: equals(ANDROID_TARGET_ARCH, x86): \
+-    QMAKE_CFLAGS += -target i686-none-linux-android -mstackrealign
++    QMAKE_CFLAGS = -target i686-linux-android$$replace(ANDROID_PLATFORM, "android-", "") -mstackrealign
+ else: equals(ANDROID_TARGET_ARCH, x86_64): \
+-    QMAKE_CFLAGS += -target x86_64-none-linux-android
+-else: equals(ANDROID_TARGET_ARCH, mips): \
+-    QMAKE_CFLAGS += -target mipsel-none-linux-android
+-else: equals(ANDROID_TARGET_ARCH, mips64): \
+-    QMAKE_CFLAGS += -target mips64el-none-linux-android
+-
+-QMAKE_CFLAGS += -gcc-toolchain $$NDK_TOOLCHAIN_PATH -fno-limit-debug-info
+-
+-QMAKE_LINK    = $$QMAKE_CXX $$QMAKE_CFLAGS -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libatomic.a -nostdlib++
+-equals(ANDROID_TARGET_ARCH, armeabi-v7a): QMAKE_LINK += -Wl,--exclude-libs,libunwind.a
+-
+-QMAKE_CFLAGS += -DANDROID_HAS_WSTRING --sysroot=$$NDK_ROOT/sysroot \
+-                -isystem $$NDK_ROOT/sysroot/usr/include/$$NDK_TOOLS_PREFIX \
+-                -isystem $$NDK_ROOT/sources/cxx-stl/llvm-libc++/include \
+-                -isystem $$NDK_ROOT/sources/android/support/include \
+-                -isystem $$NDK_ROOT/sources/cxx-stl/llvm-libc++abi/include
++    QMAKE_CFLAGS = -target x86_64-linux-android$$replace(ANDROID_PLATFORM, "android-", "")
+ 
+-ANDROID_SOURCES_CXX_STL_LIBDIR = $$NDK_ROOT/sources/cxx-stl/llvm-libc++/libs/$$ANDROID_TARGET_ARCH
++QMAKE_CFLAGS += -fno-limit-debug-info
+ 
+-ANDROID_STDCPP_PATH = $$ANDROID_SOURCES_CXX_STL_LIBDIR/libc++_shared.so
++QMAKE_LINK    = $$QMAKE_CXX $$QMAKE_CFLAGS
+ 
+-ANDROID_USE_LLVM = true
++ANDROID_STDCPP_PATH = $$NDK_LLVM_PATH/sysroot/usr/lib/$$NDK_TOOLS_PREFIX/libc++_shared.so
+ 
+-exists($$ANDROID_SOURCES_CXX_STL_LIBDIR/libc++.so): \
+-    ANDROID_CXX_STL_LIBS = -lc++
+-else: \
+-    ANDROID_CXX_STL_LIBS = $$ANDROID_SOURCES_CXX_STL_LIBDIR/libc++.so.$$replace(ANDROID_PLATFORM, "android-", "")
++ANDROID_USE_LLVM = true
+ 
+-QMAKE_CFLAGS_OPTIMIZE_SIZE = -Oz
++QMAKE_CFLAGS_OPTIMIZE_SIZE  = -Oz
++QMAKE_LIBDIR_POST           =
++QMAKE_LFLAGS                =
++QMAKE_LIBS_PRIVATE          =
++ANDROID_CXX_STL_LIBS        =
+ 
+ include(../common/android-base-tail.conf)
+
+--- old/qtbase/mkspecs/common/android-base-head.conf
++++ new/qtbase/mkspecs/common/android-base-head.conf
+@@ -64,7 +58,6 @@
+ }
+ 
+ CONFIG += $$ANDROID_PLATFORM
+-QMAKE_CFLAGS = -D__ANDROID_API__=$$replace(ANDROID_PLATFORM, "android-", "")
+ 
+ ANDROID_PLATFORM_ROOT_PATH  = $$NDK_ROOT/platforms/$$ANDROID_PLATFORM/arch-$$ANDROID_ARCHITECTURE/
+ 
+--- old/qtbase/mkspecs/common/android-base-tail.conf
++++ new/qtbase/mkspecs/common/android-base-tail.conf
+@@ -6,22 +6,17 @@
+ QMAKE_CFLAGS += -fstack-protector-strong -DANDROID
+ 
+ equals(ANDROID_TARGET_ARCH, armeabi-v7a): \
+-    QMAKE_CFLAGS += -march=armv7-a -mfloat-abi=softfp -mfpu=vfp -fno-builtin-memmove
++    QMAKE_CFLAGS += -march=armv7-a -mfloat-abi=softfp -mfpu=vfp
+ else: equals(ANDROID_TARGET_ARCH, armeabi): \
+-    QMAKE_CFLAGS += -march=armv5te -mtune=xscale -msoft-float -fno-builtin-memmove
+-# -fno-builtin-memmove is used to workaround https://code.google.com/p/android/issues/detail?id=81692
++    QMAKE_CFLAGS += -march=armv5te -mtune=xscale -msoft-float
+ 
+ QMAKE_CFLAGS_WARN_ON    = -Wall -W
+ QMAKE_CFLAGS_WARN_OFF   =
+ equals(ANDROID_TARGET_ARCH, armeabi-v7a) | equals(ANDROID_TARGET_ARCH, armeabi) {
+     CONFIG += optimize_size
+     QMAKE_CFLAGS_DEBUG                     = -g -marm -O0
+-    equals(ANDROID_TARGET_ARCH, armeabi):if(equals(NDK_TOOLCHAIN_VERSION, 4.8)|equals(NDK_TOOLCHAIN_VERSION, 4.9)) {
+-        DEFINES += QT_OS_ANDROID_GCC_48_WORKAROUND
+-    } else {
+-        QMAKE_CFLAGS_RELEASE += -mthumb
+-        QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO += -mthumb
+-    }
++    QMAKE_CFLAGS_RELEASE += -mthumb
++    QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO += -mthumb
+ }
+ 
+ QMAKE_CFLAGS_SHLIB      = -fPIC
+@@ -61,15 +56,12 @@
+ QMAKE_RANLIB            = $${CROSS_COMPILE}ranlib
+ 
+ QMAKE_INCDIR_POST       =
+-QMAKE_LIBDIR_POST       = $$ANDROID_SOURCES_CXX_STL_LIBDIR
+ QMAKE_INCDIR_X11        =
+ QMAKE_LIBDIR_X11        =
+ QMAKE_INCDIR_OPENGL     =
+ QMAKE_LIBDIR_OPENGL     =
+ 
+ QMAKE_LINK_SHLIB        = $$QMAKE_LINK
+-QMAKE_LFLAGS            = --sysroot=$$ANDROID_PLATFORM_ROOT_PATH
+-equals(ANDROID_TARGET_ARCH, x86_64) QMAKE_LFLAGS += -L$$ANDROID_PLATFORM_ROOT_PATH/usr/lib64
+ QMAKE_LFLAGS_APP        = -Wl,--no-undefined -Wl,-z,noexecstack -shared
+ QMAKE_LFLAGS_SHLIB      = -Wl,--no-undefined -Wl,-z,noexecstack -shared
+ QMAKE_LFLAGS_PLUGIN     = $$QMAKE_LFLAGS_SHLIB