Sometimes it is needed to run the current compiler with specific options
not to compile a file but rather to obtain additional info. For example,
GCC has several -print-* options to query it about the paths to
different libraries and development files. One use case is to get the
location of development files for GCC plugins, which is not easily
obtainable by other means:
gcc -print-file-name=plugin
For this purpose, it would be convenient if the compiler object returned
by meson.get_compiler(lang) could be used in run_command() directly.
This commit implements it.
Signed-off-by: Evgenii Shatokhin <eshatokhin@virtuozzo.com>
The documentation doesn't require it and the interpreter code works around the
possibility of it being None. The ninja backend code however fails with
File "/home/whot/code/meson/mesonbuild/backend/ninjabackend.py", line 796, in generate_data_install
dstabs = os.path.join(subdir or None, plain_f)
File "/usr/lib64/python3.6/posixpath.py", line 78, in join
a = os.fspath(a)
TypeError: expected str, bytes or os.PathLike object, not NoneType
If install_dir is missing, default to datadir/projectname
After PR #2662, running test case common/125 shared module/ on Cygwin gets
me:
$ ninja -C _build
ninja: Entering directory `_build'
[7/7] Linking target prog.exe.
/usr/lib/gcc/x86_64-pc-cygwin/6.4.0/../../../../x86_64-pc-cygwin/bin/ld: warning: --export-dynamic is not supported for PE+ targets, did you mean --export-all-symbols?
Also, fix doc for correct version of first apperance.
Future work: Notwithstanding the hint that ld gives, these options are not
equivalent, and it's not clear we should be using it here:
--export-all-symbols is the default behaviour, and if the exports are
restricted by explicit annotations or a .def file, this option might be
overriding that...
Meson is able to redefine variables when retrieving them from
`pkg-config` dependencies. However, the documentation is missing.
This patch adds documentation for this feature.
For dependency() and subproject(), the default_options argument can
override the defaults in the subproject's meson_options.txt, not in
its project() invocation.
Resolves#2612
Aleksey Filippov
Alistair Thomas
Jussi Pakkanen
Jon Turney
Evgenii Shatokhin
Nirbheek Chauhan
Peter Hutterer
Nirbheek Chauhan
Eric Engestrom
Sami Kerola
Martin Kelly
Nikita Churaev
Iñigo Martínez
Ernestas Kulik
Zbigniew Jędrzejewski-Szmek
Josh Soref
Dylan Baker
Joergen Ibsen
Paulo Antonio Alvarez
Kevin Anderson
Luis Menina
xarkes
Mohammed Sadiq