Fix build and running on Android 2.2

* INSTALL.android: Document that Android 2.2 is now supported,
with caveats.
* configure.ac (ANDROID_MIN_SDK, ANDROID_SDK_18_OR_EARLIER)
(SYSTEM_TYPE, ANDROID_STUBIFY, SIZEOF_LONG): Correctly detect
things missing on Android 2.2.
* java/Makefile.in (ANDROID_JAR, JARSIGNER_FLAGS):
* java/debug.sh (jdb, gdbserver, line):
* java/org/gnu/emacs/EmacsApplication.java (findDumpFile):
* java/org/gnu/emacs/EmacsService.java (onCreate):
* java/org/gnu/emacs/EmacsThread.java (EmacsThread, run): Run
parameter initialization on main thread.
* src/android-asset.h (struct android_asset_manager)
(struct android_asset, AAssetManager_fromJava, AAssetManager_open)
(AAsset_close, android_asset_create_stream)
(android_asset_read_internal, AAsset_openFileDescriptor)
(AAsset_getLength, AAsset_getBuffer, AAsset_read): New file.
* src/android.c (android_user_full_name, android_hack_asset_fd)
(android_check_compressed_file): Implement for Android 2.2.
* src/process.c (Fprocess_send_eof): Don't call tcdrain if
unavailable.
* src/sfntfont-android.c (system_font_directories): Fix compiler
warning.
* src/sfntfont.c (sfntfont_read_cmap): Correctly test rc of
emacs_open.
* src/textconv.c (handle_pending_conversion_events_1): Mark
buffer UNINIT.

1 files changed, 7 insertions, 1 deletions

diff --git a/java/debug.sh b/java/debug.sh
index cbef7518984..30e5a94eee5 100755
--- a/java/debug.sh
+++ b/java/debug.sh
@@ -32,6 +32,7 @@ jdb_port=64013
 jdb=no
 attach_existing=no
 gdbserver=
+gdb=gdb
 
 while [ $# -gt 0 ]; do
     case "$1" in
@@ -51,6 +52,7 @@ while [ $# -gt 0 ]; do
             echo "  --port PORT         run the GDB server on a specific port"
             echo "  --jdb-port PORT     run the JDB server on a specific port"
             echo "  --jdb               run JDB instead of GDB"
+            echo "  --gdb               use specified GDB binary"
             echo "  --attach-existing   attach to an existing process"
             echo "  --gdbserver BINARY  upload and use the specified gdbserver binary"
             echo "  --help              print this message"
@@ -65,6 +67,10 @@ while [ $# -gt 0 ]; do
         "--jdb" )
             jdb=yes
             ;;
+        "--gdb" )
+            shift
+            gdb=$1
+            ;;
         "--gdbserver" )
             shift
             gdbserver=$1
@@ -355,4 +361,4 @@ fi
 
 # Finally, start gdb with any extra arguments needed.
 cd "$oldpwd"
-gdb --eval-command "target remote localhost:$gdb_port" $gdbargs
+$gdb --eval-command "target remote localhost:$gdb_port" $gdbargs