build, test, doc: Temporarily remove Android-related stuff

Previously, our Android builds were geared towards generating APKs,
which relied on Qt. However, after migrating to C++20, compiling for
Android became unfeasible due to Qt 5.15's compatibility limitations
with NDK only up to r25, which includes an outdated embedded libc++.

All removed stuff will be reinstated after migrating the build system to
CMake and upgrading Qt to version 6.x."

1 files changed, 3 insertions, 25 deletions

diff --git a/build-aux/m4/bitcoin_qt.m4 b/build-aux/m4/bitcoin_qt.m4
index a716cd9a27..c6276e56b5 100644
--- a/build-aux/m4/bitcoin_qt.m4
+++ b/build-aux/m4/bitcoin_qt.m4
@@ -70,8 +70,6 @@ AC_DEFUN([BITCOIN_QT_INIT],[
                  [qt_lib_suffix= ]); bitcoin_qt_want_version=qt5],
         [qt_lib_suffix= ])
 
-  AS_CASE([$host], [*android*], [qt_lib_suffix=_$ANDROID_ARCH])
-
   AC_ARG_WITH([qt-incdir],[AS_HELP_STRING([--with-qt-incdir=INC_DIR],[specify qt include path (overridden by pkgconfig)])], [qt_include_path=$withval], [])
   AC_ARG_WITH([qt-libdir],[AS_HELP_STRING([--with-qt-libdir=LIB_DIR],[specify qt lib path (overridden by pkgconfig)])], [qt_lib_path=$withval], [])
   AC_ARG_WITH([qt-plugindir],[AS_HELP_STRING([--with-qt-plugindir=PLUGIN_DIR],[specify qt plugin path (overridden by pkgconfig)])], [qt_plugin_path=$withval], [])
@@ -80,19 +78,10 @@ AC_DEFUN([BITCOIN_QT_INIT],[
 
   AC_ARG_WITH([qtdbus],
     [AS_HELP_STRING([--with-qtdbus],
-    [enable DBus support (default is yes if qt is enabled and QtDBus is found, except on Android)])],
+    [enable DBus support (default is yes if qt is enabled and QtDBus is found)])],
     [use_dbus=$withval],
     [use_dbus=auto])
 
-  dnl Android doesn't support D-Bus and certainly doesn't use it for notifications
-  case $host in
-    *android*)
-      if test "$use_dbus" != "yes"; then
-        use_dbus=no
-      fi
-    ;;
-  esac
-
   AC_SUBST(QT_TRANSLATION_DIR,$qt_translation_path)
 ])
 
@@ -132,16 +121,11 @@ AC_DEFUN([BITCOIN_QT_CONFIGURE],[
       if test -d "$qt_plugin_path/accessible"; then
         QT_LIBS="$QT_LIBS -L$qt_plugin_path/accessible"
       fi
-      if test -d "$qt_plugin_path/platforms/android"; then
-        QT_LIBS="$QT_LIBS -L$qt_plugin_path/platforms/android -lqtfreetype -lEGL"
-      fi
     fi
 
     AC_DEFINE([QT_STATICPLUGIN], [1], [Define this symbol if qt plugins are static])
-    if test "$TARGET_OS" != "android"; then
-      _BITCOIN_QT_CHECK_STATIC_PLUGIN([QMinimalIntegrationPlugin], [-lqminimal])
-      AC_DEFINE([QT_QPA_PLATFORM_MINIMAL], [1], [Define this symbol if the minimal qt platform exists])
-    fi
+    _BITCOIN_QT_CHECK_STATIC_PLUGIN([QMinimalIntegrationPlugin], [-lqminimal])
+    AC_DEFINE([QT_QPA_PLATFORM_MINIMAL], [1], [Define this symbol if the minimal qt platform exists])
     if test "$TARGET_OS" = "windows"; then
       dnl Linking against wtsapi32 is required. See #17749 and
       dnl https://bugreports.qt.io/browse/QTBUG-27097.
@@ -160,9 +144,6 @@ AC_DEFUN([BITCOIN_QT_CONFIGURE],[
       _BITCOIN_QT_CHECK_STATIC_PLUGIN([QCocoaIntegrationPlugin], [-lqcocoa])
       _BITCOIN_QT_CHECK_STATIC_PLUGIN([QMacStylePlugin], [-lqmacstyle])
       AC_DEFINE([QT_QPA_PLATFORM_COCOA], [1], [Define this symbol if the qt platform is cocoa])
-    elif test "$TARGET_OS" = "android"; then
-      QT_LIBS="-Wl,--export-dynamic,--undefined=JNI_OnLoad -lplugins_platforms_qtforandroid${qt_lib_suffix} -ljnigraphics -landroid -lqtfreetype${qt_lib_suffix} $QT_LIBS"
-      AC_DEFINE([QT_QPA_PLATFORM_ANDROID], [1], [Define this symbol if the qt platform is android])
     fi
   fi
   CPPFLAGS=$TEMP_CPPFLAGS
@@ -357,9 +338,6 @@ AC_DEFUN([_BITCOIN_QT_CHECK_STATIC_LIBS], [
     PKG_CHECK_MODULES([QT_SERVICE], [${qt_lib_prefix}ServiceSupport${qt_lib_suffix}], [QT_LIBS="$QT_SERVICE_LIBS $QT_LIBS"])
   elif test "$TARGET_OS" = "windows"; then
     PKG_CHECK_MODULES([QT_WINDOWSUIAUTOMATION], [${qt_lib_prefix}WindowsUIAutomationSupport${qt_lib_suffix}], [QT_LIBS="$QT_WINDOWSUIAUTOMATION_LIBS $QT_LIBS"])
-  elif test "$TARGET_OS" = "android"; then
-    PKG_CHECK_MODULES([QT_EGL], [${qt_lib_prefix}EglSupport${qt_lib_suffix}], [QT_LIBS="$QT_EGL_LIBS $QT_LIBS"])
-    PKG_CHECK_MODULES([QT_SERVICE], [${qt_lib_prefix}ServiceSupport${qt_lib_suffix}], [QT_LIBS="$QT_SERVICE_LIBS $QT_LIBS"])
   fi
 ])