Having commented-out checks for things that don't even need to be
checked serves no purpose.
MSVC floating point optimizations don't need to be set, /fp:precise is
the default and has been so for a very long time now:
https://learn.microsoft.com/en-us/cpp/build/reference/fp-specify-floating-point-behavior?view=msvc-140
ICU4C requires C++17 and there aren't any compilers capable of that
without namespace support so there's no need to check that.
When building icu4c, it defaults to clang instead of gcc when the default compiler, cc / c++, is a symlink to gcc / g++.
This not the expected behavior when building C and C++ code.
It appears that this behavior was put in place originally for supporting C++11, which hopefully is no longer such a concern.
This PR adjusts the configure.ac for icu4c to prefer the cc and c++ compilers first.
This helps to avoid missleading error message:
```
./source/configure: line 7981: syntax error near unexpected token 'newline'
./source/configure: line 7981: 'AX_CHECK_COMPILE_FLAG('
```
- update GitHub workflow / Azure pipeline to no longer specify layoutex
Also:
- update configure.ac that was missed in #1265cad3903cc2 ICU-21051
- some FALSE/TRUE were missed in source/test/letest
Using the C++ SFINAE (substitution failure is not an error) technique,
it's possible to provide an icu::StringPiece constructor that accepts
any string view type that might be available in the current compilation
unit, without adding any additional dependencies or configuration flags
to ICU.
targets to test/fuzzer/ directory. This will enable compilation and
smoke test of fuzzer targets as part of the ICU continuous build.
ICU-20652 Fixed exit-on-error behaviour of fuzzer targets execution.
Minor clean-ups and improvements
ICU-20652 Modifies fuzzer/Makefile.in to fix Windows build issue.
ICU-20627 Adds explicit enablement of fuzzer targets build to ICU4C
configuration and Makefile.in. File 'configure' was created from
'configure.ac' by executing 'autoreconf'.
autoreconf added some new entries into 'configure' about runstatedir. Not sure
why it did this, they are not related to fuzzer.
- see also ICU-20062
- add a `-B` option to the two python invocations on Windows
- set PYTHONDONTWRITEBYTECODE in configure.ac and icudefs.mk.in
Co-authored-by: Fredrik Roubert <roubert@google.com>
- If icu/source/data/locales/root.txt missing, skip
python rules.mk generation.
- Also, create build directories properly as needed
- Also includes noise changes to configure
(configure was probably generated using unreleased
autoconf 2.70 or 2.69 + patches)
- eac8f4b31a did not
regen configure properly, so BUILDTOOL_OPTS is now
ICU_DATA_BUILDTOOL_OPTS
- Reads filters.json or .hjson from ICU_DATA_FILTER_FILE environment variable
- Adds DepTarget for dependency semantics, and warns for missing deps.
- Fixes certain tests that crash with sliced locale data.
- Includes support for 4 filter types.
* Note: the diff will show changes to "runstatedir". This is
a feature which ICU does not use, and it is not in any released
autoconf version. Perhaps some distributions patched autoconf
locally.
https://lists.gnu.org/archive/html/autoconf/2018-07/msg00006.html
- Creates new Python package in icu4c/data/buildtool
- Creates BUILRDULES.py in icu4c/data and icu4c/test/testdata, unified between Unix/Windows
- Removes most data build orchestration rules from makedata.mak, testdata.mak, data/Makefile.in, and test/testdata/Makefile.in
- Removes pool.res files and builds them on the fly instead
