compilers: Add default search path stdlib_only_link_flags

This should be done in all cases of language_stdlib_only_link_flags, but
I don't have access to all of the compilers to test it.

This is required in cases where object files created by gfortran are
linked using another compiler with a differen default search path, such
as gfortran and clang together.
pull/9207/head
Dylan Baker 3 years ago committed by Jussi Pakkanen
parent fee5cb697c
commit 64c267c49c
  1. 4
      mesonbuild/build.py
  2. 2
      mesonbuild/compilers/compilers.py
  3. 37
      mesonbuild/compilers/cpp.py
  4. 33
      mesonbuild/compilers/fortran.py
  5. 4
      test cases/fortran/9 cpp/meson.build

@ -1470,7 +1470,7 @@ You probably should put it in link_with instead.''')
# If the user set the link_language, just return that.
if self.link_language:
comp = all_compilers[self.link_language]
return comp, comp.language_stdlib_only_link_flags()
return comp, comp.language_stdlib_only_link_flags(self.environment)
# Languages used by dependencies
dep_langs = self.get_langs_used_by_deps()
@ -1488,7 +1488,7 @@ You probably should put it in link_with instead.''')
added_languages: T.Set[str] = set()
for dl in itertools.chain(self.compilers, dep_langs):
if dl != linker.language:
stdlib_args += all_compilers[dl].language_stdlib_only_link_flags()
stdlib_args += all_compilers[dl].language_stdlib_only_link_flags(self.environment)
added_languages.add(dl)
# Type of var 'linker' is Compiler.
# Pretty hard to fix because the return value is passed everywhere

@ -893,7 +893,7 @@ class Compiler(HoldableObject, metaclass=abc.ABCMeta):
def openmp_link_flags(self) -> T.List[str]:
return self.openmp_flags()
def language_stdlib_only_link_flags(self) -> T.List[str]:
def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
return []
def gnu_symbol_visibility_args(self, vistype: str) -> T.List[str]:

@ -246,13 +246,31 @@ class ClangCPPCompiler(ClangCompiler, CPPCompiler):
return libs
return []
def language_stdlib_only_link_flags(self) -> T.List[str]:
return ['-lstdc++']
def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
# We need to apply the search prefix here, as these link arguments may
# be passed to a differen compiler with a different set of default
# search paths, such as when using Clang for C/C++ and gfortran for
# fortran,
search_dir = self._get_search_dirs(env)
search_dirs: T.List[str] = []
if search_dir is not None:
for d in search_dir.split()[-1][len('libraries: ='):].split(':'):
search_dirs.append(f'-L{d}')
return search_dirs + ['-lstdc++']
class AppleClangCPPCompiler(ClangCPPCompiler):
def language_stdlib_only_link_flags(self) -> T.List[str]:
return ['-lc++']
def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
# We need to apply the search prefix here, as these link arguments may
# be passed to a differen compiler with a different set of default
# search paths, such as when using Clang for C/C++ and gfortran for
# fortran,
search_dir = self._get_search_dirs(env)
search_dirs: T.List[str] = []
if search_dir is not None:
for d in search_dir.split()[-1][len('libraries: ='):].split(':'):
search_dirs.append(f'-L{d}')
return search_dirs + ['-lc++']
class EmscriptenCPPCompiler(EmscriptenMixin, ClangCPPCompiler):
@ -396,7 +414,16 @@ class GnuCPPCompiler(GnuCompiler, CPPCompiler):
def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
return ['-fpch-preprocess', '-include', os.path.basename(header)]
def language_stdlib_only_link_flags(self) -> T.List[str]:
def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
# We need to apply the search prefix here, as these link arguments may
# be passed to a differen compiler with a different set of default
# search paths, such as when using Clang for C/C++ and gfortran for
# fortran,
search_dir = self._get_search_dirs(env)
search_dirs: T.List[str] = []
if search_dir is not None:
for d in search_dir.split()[-1][len('libraries: ='):].split(':'):
search_dirs.append(f'-L{d}')
return ['-lstdc++']

@ -211,8 +211,17 @@ class GnuFortranCompiler(GnuCompiler, FortranCompiler):
def get_module_outdir_args(self, path: str) -> T.List[str]:
return ['-J' + path]
def language_stdlib_only_link_flags(self) -> T.List[str]:
return ['-lgfortran', '-lm']
def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
# We need to apply the search prefix here, as these link arguments may
# be passed to a differen compiler with a different set of default
# search paths, such as when using Clang for C/C++ and gfortran for
# fortran,
search_dir = self._get_search_dirs(env)
search_dirs: T.List[str] = []
if search_dir is not None:
for d in search_dir.split()[-1][len('libraries: ='):].split(':'):
search_dirs.append(f'-L{d}')
return search_dirs + ['-lgfortran', '-lm']
def has_header(self, hname: str, prefix: str, env: 'Environment', *,
extra_args: T.Union[None, T.List[str], T.Callable[['CompileCheckMode'], T.List[str]]] = None,
@ -336,7 +345,8 @@ class IntelFortranCompiler(IntelGnuLikeCompiler, FortranCompiler):
def get_preprocess_only_args(self) -> T.List[str]:
return ['-cpp', '-EP']
def language_stdlib_only_link_flags(self) -> T.List[str]:
def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
# TODO: needs default search path added
return ['-lifcore', '-limf']
def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
@ -420,7 +430,8 @@ class PGIFortranCompiler(PGICompiler, FortranCompiler):
'2': default_warn_args,
'3': default_warn_args + ['-Mdclchk']}
def language_stdlib_only_link_flags(self) -> T.List[str]:
def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
# TODO: needs default search path added
return ['-lpgf90rtl', '-lpgf90', '-lpgf90_rpm1', '-lpgf902',
'-lpgf90rtl', '-lpgftnrtl', '-lrt']
@ -461,8 +472,18 @@ class FlangFortranCompiler(ClangCompiler, FortranCompiler):
'2': default_warn_args,
'3': default_warn_args}
def language_stdlib_only_link_flags(self) -> T.List[str]:
return ['-lflang', '-lpgmath']
def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
# We need to apply the search prefix here, as these link arguments may
# be passed to a differen compiler with a different set of default
# search paths, such as when using Clang for C/C++ and gfortran for
# fortran,
# XXX: Untested....
search_dir = self._get_search_dirs(env)
search_dirs: T.List[str] = []
if search_dir is not None:
for d in search_dir.split()[-1][len('libraries: ='):].split(':'):
search_dirs.append(f'-L{d}')
return search_dirs + ['-lflang', '-lpgmath']
class Open64FortranCompiler(FortranCompiler):

@ -3,10 +3,6 @@ project('C, C++ and Fortran', 'c', 'cpp', 'fortran')
cpp = meson.get_compiler('cpp')
fc = meson.get_compiler('fortran')
if cpp.get_id() == 'clang'
error('MESON_SKIP_TEST Clang C++ does not find -lgfortran for some reason.')
endif
if build_machine.system() == 'windows' and cpp.get_id() != fc.get_id()
error('MESON_SKIP_TEST mixing gfortran with non-GNU C++ does not work.')
endif

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