Currently it's just like if all builtin/base/compiler options are
yielding. This patch makes possible to have non-yielding builtin
options. The value in is overriden in this order:
- Value from parent project
- Value from subproject's default_options if set
- Value from subproject() default_options if set
- Value from command line if set
The documentation of "order-only" dependencies is limited and their
various purposes are especially not clear. See issue #6391 for a recent
example, search the internet for many more. So mention the particular
purpose here while making the documentation barely longer.
Sometimes qt can be installed not as framework on MacOS. One way to
achieve this behaviour is to use conan package manager.
Allow falling back to simple library search if framework was
not found. In addition, allow to find the debug version of qt debug
libraries which have "_debug" suffix added to them.
Fixes#5091
This allows Meson native-file [properties] to be used.
This avoids the need to call meson from a script file or have a
long command line invocation of `meson setup`
The method meson.get_native_property('prop', 'fallback') is added.
The native file can contain properties like
```
[properties]
myprop1 = 'foo'
mydir2 = 'lib/custom'
```
Then from within `meson.build`
```meson
x1 = meson.get_native_property('myprop1')
thedir = meson.get_native_property('mydir2', 'libs')
```
fallback values are optional
When subdir is '/foo/bar' and prefix '/foo' it was returning '/bar',
which is an absolute path. It was then constructing '-L${prefix}//bar'
with bogus double slash.
When subdir is '/fooo/bar' and prefix '/foo' it was returning 'o/bar'.
* Extend test_prefix_dependent_defaults unit test to cover default case
Extend test_prefix_dependent_defaults unit test to cover the default
case, when the default prefix is '/usr/local'. (On Windows, the default
prefix is 'c:/')
* Restore adjusting option defaults depending on the default prefix
Restore adjusting option defaults, depending on the default prefix.
Droppped in d778a371
The kludgy method we use to get env vars from vcvarsall.bat into our
environment doesn't correctly handle env var values which contain
newlines.
The BUILD_SOURCEVERSIONMESSAGE environment variable contains the
entirety of the commit message. If a line containing an equals sign
appears in the commit message, we could have problems.
Unset that environment variable to workaround this problem.