Remove Autotools+Ant build system

There are some structural changes planned for the library, and having two
parallel build systems would make that harder.  We've carried both systems
in parallel for two releases / 15 months, so it should be reasonably
possible to drop the legacy one.

On platforms with older Meson and Python >= 3.7, it's still possible to
install OpenSlide Java by first upgrading Meson with `pip install
--upgrade meson`.

Closes: #45
Signed-off-by: Benjamin Gilbert <[email protected]>

.gitattributes

@@ -1,8 +1,3 @@
-# Shell scripts and Automake sources can't have CRLF line endings
-configure.ac eol=lf
-Makefile.am eol=lf
-*.m4 eol=lf
-
 # Don't include Git/GitHub metadata in release tarballs
 .gitattributes export-ignore
 .gitignore export-ignore

.github/ISSUE_TEMPLATE/release.md

@@ -1,7 +1,7 @@
 # OpenSlide Java release process
 
 - [ ] Run test build and `meson dist`
-- [ ] Update `CHANGELOG.md` and versions in `configure.ac` and `meson.build`
+- [ ] Update `CHANGELOG.md` and version in `meson.build`
 - [ ] Create and push signed tag
 - [ ] Verify that GitHub Actions created a [GitHub release](https://github.com/openslide/openslide-java/releases) with release notes and a source tarball
 - [ ] [Update openslide-bin](https://github.com/openslide/openslide-bin/issues/new?labels=release&template=release.md)

README.md

@@ -3,19 +3,15 @@
 This is a Java binding to [OpenSlide](https://openslide.org/).
 
 
-## Building with Meson
-
-This is the new method.
-
-### Build requirements
+## Build requirements
 
 - JDK
 - Meson ≥ 0.62
 - OpenSlide ≥ 3.4.0
 - pkg-config
 
 
-### Building
+## Building
 
 ```
 meson setup builddir
@@ -24,75 +20,6 @@ meson install -C builddir
 ```
 
 
-## Building with Autotools and Ant
-
-This is the old method, and will eventually be removed.
-
-
-### Build requirements
-
-- JDK
-- Apache Ant
-- OpenSlide ≥ 3.4.0
-- pkg-config
-
-
-### Building on Linux or Mac OS X
-
-```
-./configure
-make
-make install
-```
-
-(If building from the Git repository, you will first need to install
-autoconf, automake, libtool, and pkg-config and run `autoreconf -i`.)
-
-
-### Cross-compiling for Windows with MinGW-w64
-
-```
-PKG_CONFIG=pkg-config \
- PKG_CONFIG_PATH=/path/to/cross/compiled/openslide/lib/pkgconfig \
- ./configure --host=i686-w64-mingw32 --build=$(build-aux/config.guess)
-make
-make install
-```
-
-For a 64-bit JRE, substitute `--host=x86_64-w64-mingw32`.
-
-
-### Building on Windows
-
-Ensure that the path to the openslide-java source tree does not contain
-whitespace.
-
-Install Cygwin, selecting these additional packages:
-
-- `make`
-- `pkg-config`
-- `mingw64-i686-gcc-core` and/or `mingw64-x86_64-gcc-core`
-
-(Cygwin is only needed for the build environment; the resulting binaries
-do not require Cygwin.)
-
-Also install a JDK and Apache Ant.
-
-Then:
-
-```
-./configure --prefix=/path/to/install/dir \
- --host=i686-w64-mingw32 --build=$(build-aux/config.guess) \
- PKG_CONFIG_PATH="/path/to/openslide/lib/pkgconfig" \
- JAVA_HOME="$(cygpath c:/Program\ Files/Java/jdk*)" \
- ANT_HOME="/path/to/ant/directory"
-make
-make install
-```
-
-For a 64-bit JRE, substitute `--host=x86_64-w64-mingw32`.
-
-
 ## License
 
 OpenSlide Java is released under the terms of the [GNU Lesser General Public