clang-cl does support '-Wmissing-include-dirs' (unlike msvc), but doesn't
(currently) support '/ZI' (which is used by the default 'debug' buildtype),
the presence of which will cause an 'unknown-argument' warning, which is
treated as an error with 'Werror'.
Adjust the default buildtype so this test can pass with clang-cl
Rewrite test common/100 manygen using get_argument_syntax(), so it
treats clang-cl as cl, can handle only clang-cl being available, and try
to make it a bit less convoluted.
It seems that clang-cl isn't quite compatible with cl in the way it handles
pch, and when the precompiled header is used, the pathname of the header is
needed, not just its filename.
This fixes test\common\13 pch with clang-cl
When invoked as clang-cl to compile, it doesn't emit cl-compatible D9002
warnings about unknown options, but fortunately also supports
-Werror-unknown-argument instead.
When invoked to link, and using LINK, it does emit cl-compatible LNK4044
warnings about unknown options.
Currently, ComplierHolder.determine_args() unconditionally adds the link
arguments to the commmand, even if we aren't linking, because it doesn't
have access to the mode (preprocess, compile, link) that
_get_compiler_check_args() will use.
This leads to command lines like:
'cl testfile.c /nologo /showIncludes /c /Fooutput.obj /Od kernel32.lib
user32.lib gdi32.lib winspool.lib shell32.lib ole32.lib oleaut32.lib
uuid.lib comdlg32.lib advapi32.lib'
which clang-cl considers invalid; MSVS cl accepts this, ignoring the
unneeded libraries
Change from passing extra_args down to _get_compiler_check_args(), to
passing down a callback to CompilerHolder.determine_args() (with a bound
kwargs argument), so it can consult mode and kwargs to determine the args to
use.
Accomodate clang-cl /showIncludes output in detect_vs_dep_prefix().
clang-cl outputs lines terminated with \n, not \r\n
v2:
should invoke the detected compiler, not hardcode 'cl'
Handle clang's cl or clang-cl being in PATH, or set in CC/CXX
Future work: checking the name of the executable here seems like a bad idea.
These compilers will fail to be detected if they are renamed.
v2:
Update compiler.get_argument_type() test
Fix comparisons of id inside CCompiler, backends and elsewhere
v3:
ClangClCPPCompiler should be a subclass of ClangClCCompier, as well
Future work: mocking in test_find_library_patterns() is effected, as we
now test for a subclass, rather than self.id in CCompiler.get_library_naming()
Some compilers try very had to pretend they're another compiler (ICC
pretends to be GCC and Linux and MacOS, and MSVC on windows), Clang
behaves much like GCC, but now also has clang-cl, which behaves like MSVC.
This method provides an easy way to determine whether testing for MSVC
like arguments `/w1234` or gcc like arguments `-Wfoo` are likely to
succeed, without having to check for dozens of compilers and the host
operating system, (as you would otherwise have to do with ICC).
As mentioned in #4407, if dependency('boost') fails, the error message
is 'Dependency "boost" not found, tried' (sic).
Similar to line 1451 above, suppress reporting the tried methods
returned by log_tried(), if the list is empty (as is the case with
boost)
This reduces the build time about 2 sec. The result itself is not hard
to calculate. However, persistent join calls with the same 2 strings are
not that usefull. This also caused about 600'000 calls to
get_target_dir, we are now down to 60'000 calls form this function to
get_target_dir.
Replace several checks against GCC_MINGW or (GCC_MINGW, GCC_CYGWIN) with
is_windows_compiler instead, so that clang and other gcc-like compilers
using MinGW work appropriately with vs_module_defs, c_winlibs, and
cpp_winlibs.
Fixes#4434.
It is a common idiom to look for a function or a specific type or
a header in various locations/libraries, and it can be confusing to
see the (seemingly) identical compiler check being done multiple
times.
Now we print the dependencies being used when a compiler check is run
Before:
Checking for function "fbGetDisplay": NO
Checking for type "GLeglImageOES": YES
Checking for function "asinh": YES
After:
Checking for function "fbGetDisplay" with dependency egl: NO
Checking for type "GLeglImageOES" with dependencies glesv2, gl: YES
Checking for function "asinh" with dependency -lm: YES
If a subproject is not required and fails during its configuration, the
parent project continues, but should not include any target or state set
by the failed subproject. This fix ninja still trying to build targets
generated by subprojects before they fail in their configuration.
The 'build' object is now per-interpreter instead of being global. Once
a subproject interpreter succeed, values from its 'build' object are
merged back into its parent 'build' object.
This allows using the imperfect profiles generated by multithreaded
programs. Without the argument, GCC fails to load them.
Clang just ignores the argument AFAICT.
Fixes https://github.com/mesonbuild/meson/issues/2159
Replace '\\' with \\\\ in config values args. Otherwise shlex will
helpfully remove path separators on windows, resulting in values like:
`-Ic:mydataishere`
fixup! dependencies/base: Replace windows path separators with /
Hotdoc really wants internal links to point to the .md files instead of
the generated names. Which makes sense, as we're currently relying on
the fact that meson only generated .html pages.
Including the following that has come up several times recent:
- How to use codegen for headers (that each target that uses the header
needs the object in it's sources)
- Using custom_targets with multiple outputs
For PE/COFF it is not possible to allow undefined symbols, so do not
try to use the option to do so.
While gcc ld silently ignores it, this is not the case for the llvm
linker.
Fix#4415
When dependency(), find_library(), find_program(), or
python.find_installation() return a not-found object and disabler is
true, they return a Disabler object instead.
Jon Turney
Dylan Baker
Aurélien Zanelli
Xavier Claessens
Marcel Hollerbach
Jussi Pakkanen
Josh Gao
Nirbheek Chauhan
Jan Alexander Steffens (heftig)
John Ericson
Nicole Mazzuca
pbl
Marvin Scholz
xiannox
Pieter Krul