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Improve compression of Emacs packages on Android 2.2

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* configure.ac (ZIP): Search for a `zip' executable and
substitute the same if targeting SDK 8.

* java/INSTALL: Document new requirement.

* java/Makefile.in (GZIP_PROG, ZIP): New substitutions.
(.PHONY): Delete references to directory-tree.

(install_temp): On SDK 8 and earlier, compress large *.el and
Info files with gzip, and divide install_temp into three
separate directories, with one for large files, another for
gzipped files, and one more for the remainder.
(install_temp/assets/directory-tree, install_temp/assets/version)
(install_temp/assets/build_info): Merge these rules into
install_tmp, that they may execute before the assets directory
is split.
(emacs.apk-in): Package each directory separately, accounting
for their varied compression requirements.

* lisp/term/android-win.el (input-decode-map): Define select to
return in input-decode-map.
This commit is contained in:
Po Lu 2024-06-12 13:52:33 +08:00
parent a300db7ad4
commit 5fc75b051f
4 changed files with 109 additions and 31 deletions
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11
java/INSTALL
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@ -158,10 +158,13 @@ the NDK r10b or later. We wanted to make Emacs work on even older
versions of Android, but they are missing the required JNI graphics
library that allows Emacs to display text from C code.
Due to an extremely nasty bug in the Android 2.2 system, the generated
Emacs package cannot be compressed in builds for Android 2.2. As a
result, the Emacs package will be approximately 100 megabytes larger
than a compressed package for a newer version of Android.
There is an extremely nasty bug in the Android 2.2 system, the upshot of
which is that large files within the generated Emacs package cannot be
compressed in builds for Android 2.2, so that the Emacs package will be
approximately 15 megabytes larger than a compressed package for a newer
version of Android. For such systems the `zip' utility is also required
to produce packages that will not be misinterpreted by the package
manager.
BUILDING C++ DEPENDENCIES