PkgConfig automatically removes -L paths from libdirs if the -L points
to a system path. It knows what these paths are by taking this as a
configure option at build time, which the distro maintainers set
appropriately and everything works. This allows one to have two
versions of a package installed, a system and non system, and then
override PKG_CONFIG_PATH to use the non system version, and everything
just works. For non-pkgconfig dependencies (such as LLVM) meson needs to
strip these themselves to avoid breaking the above use case.
As stderr may contain information the user can use to solve the problem with
the gcc installation, it should not be ignore but added to the error message.
The valac binary was hard coded in meson. We now check if VALAC is
defined in the environment, and if it is, use its value as the vala
compiler, if not, we proceed with the hard coded binary name.
MESONINTROSPECT is set when running postconf scripts, which implies that
introspection is possible. But it isn't really possible because coredata
hasn't been written yet. We also still need to make sure to delete
coredata if any postconf scripts fail.
If making a typo, it used to output:
> Cross info file must have either host or a target machine.
This was not useful at all and looked like there could be a file format
error or some other issue with the content. Let's have an appropriate
error:
> File not found: /some/path
This is useful when build_machine appears to be compatible with
host_machine, but actually isn't. For example when:
- build_machine is macOS and host_machine is the iOS Simulator
- the build_machine's libc is glibc but the host_machine libc is uClibc
- code relies on kernel features not available on the build_machine
It's much faster to do 'if a in dict' instead of 'if a in dict.keys()',
since the latter constructs an iterator and walks that iterator and then
tests equality at each step, and the former does a single hash lookup.
The intel fortran compiler "ifort" was not listed in the list of
default fortran compilers. This caused it to not be found unless
explicitly set via the FC.
These compilers are available in MinGW and can be built on macOS.
More interestingly, `gcc` is a wrapper around `clang` on macOS, so we
will detect the compiler type incorrectly on macOS without this.
If you pass options, the last element in the array won't be the
compiler basename, so just check if the basename is in the exelist
somewhere.
Includes a test.
https://github.com/mesonbuild/meson/pull/1406 had an incomplete fix
for this. The test case caught it.
Note: this still doesn't test that setting it in the cross-info works,
but it's the same codepath as via the environment so it should be ok.
https://github.com/mesonbuild/meson/pull/1406 had an incomplete fix
for this. The test case caught it.
Note: this still doesn't test that setting it in the cross-info works,
but it's the same codepath as via the environment so it should be ok.