In the configure script, checking whether the LoongArch LSX intrinsics
are supported by the compiler was done unconditionally, regardless of
the targetted host platform. Compared to how we support the other SIMD
platforms and compilers, this is rather unconventional.
We are placing this check under the guard of its own platform, for the
time being. A full solution, in line with the rest of the configure.ac
patterns concering SIMD optimizations, is TODO.
We also do an overall cleanup in the SIMD section of configure.ac, and,
finally, we regenerate the configure script.
Declare AWK explicitly via the AC_ARG_VAR directive, in order to make
it "precious", and to include it in the list of influential variables
at the end of the configure help text.
Rephrase a few comments and config traces.
Finally, regenerate the configure script.
Move all Autoconf macro files (except for those that need to be in
the top-level directory) to their own subdirectory scripts/autoconf/
In this commit, we introduce a better way to organize the scripts dir,
and we make a better separation between the build scripts under the
libpng license vs. the build scripts that fall under other licenses.
Please see scripts/autoconf/README.md for more information.
Rename
--enable-png-tests/--disable-png-tests
--enable-png-tools/--disable-png-tools
to
--enable-tests/--disable-tests
--enable-tools/--disable-tools
respectively.
While the `PNG_` prefix is necessary in CMakeLists.txt, a corresponding
`--...-png-` option qualifier would be redundant in a configure script.
This PR adds two set of options to the configure script:
--enable-png-tests/--disable-png-tests
and
--enable-png-tools/--disable-png-tools
By using this feature, a user will be allowed to build only library if
needed, which will be useful on platforms not able to build the tools
and/or the tests.
This PR leaves the existing behaviour as default setting, by building
both the tools and the tests if the options are not used.
CMakeLists.txt already supports this feature with the options PNG_TESTS
and PNG_EXECUTABLES. After this commit, Autotools will provide the same
feature.
Signed-off-by: Cosmin Truta <ctruta@gmail.com>
