diff options
Diffstat (limited to 'mesonbuild/environment.py')
| -rw-r--r-- | mesonbuild/environment.py | 102 |
1 files changed, 65 insertions, 37 deletions
diff --git a/mesonbuild/environment.py b/mesonbuild/environment.py index 79c09ba..4166bda 100644 --- a/mesonbuild/environment.py +++ b/mesonbuild/environment.py @@ -289,6 +289,45 @@ class Environment(): if type(oldval) != type(value): self.coredata.user_options[name] = value + @staticmethod + def get_gnu_compiler_defines(compiler): + """ + Detect GNU compiler platform type (Apple, MinGW, Unix) + """ + # Arguments to output compiler pre-processor defines to stdout + # gcc, g++, and gfortran all support these arguments + args = compiler + ['-E', '-dM', '-'] + p = subprocess.Popen(args, universal_newlines=True, + stdin=subprocess.PIPE, stdout=subprocess.PIPE) + output = p.communicate('')[0] + if p.returncode != 0: + raise EnvironmentException('Unable to detect GNU compiler type:\n' + output) + # Parse several lines of the type: + # `#define ___SOME_DEF some_value` + # and extract `___SOME_DEF` + defines = {} + for line in output.split('\n'): + if not line: + continue + d, *rest = line.split(' ', 2) + if d != '#define': + continue + if len(rest) == 1: + defines[rest] = True + if len(rest) == 2: + defines[rest[0]] = rest[1] + return defines + + @staticmethod + def get_gnu_compiler_type(defines): + # Detect GCC type (Apple, MinGW, Cygwin, Unix) + if '__APPLE__' in defines: + return GCC_OSX + elif '__MINGW32__' in defines or '__MINGW64__' in defines: + return GCC_MINGW + # We ignore Cygwin for now, and treat it as a standard GCC + return GCC_STANDARD + def detect_c_compiler(self, want_cross): evar = 'CC' if self.is_cross_build() and want_cross: @@ -330,16 +369,13 @@ class Environment(): version = vmatch.group(0) else: version = 'unknown version' - if 'apple' in out and 'Free Software Foundation' in out: - return GnuCCompiler(ccache + [compiler], version, GCC_OSX, is_cross, exe_wrap) - if (out.startswith('cc') or 'gcc' in out.lower()) and \ - 'Free Software Foundation' in out: - lowerout = out.lower() - if 'mingw' in lowerout or 'msys' in lowerout or 'mingw' in compiler.lower(): - gtype = GCC_MINGW - else: - gtype = GCC_STANDARD - return GnuCCompiler(ccache + [compiler], version, gtype, is_cross, exe_wrap) + if 'Free Software Foundation' in out: + defines = self.get_gnu_compiler_defines([compiler]) + if not defines: + popen_exceptions[compiler] = 'no pre-processor defines' + continue + gtype = self.get_gnu_compiler_type(defines) + return GnuCCompiler(ccache + [compiler], version, gtype, is_cross, exe_wrap, defines) if 'clang' in out: if 'Apple' in out: cltype = CLANG_OSX @@ -395,13 +431,12 @@ class Environment(): version = vmatch.group(0) if 'GNU Fortran' in out: - if mesonlib.is_osx(): - gcctype = GCC_OSX - elif mesonlib.is_windows(): - gcctype = GCC_MINGW - else: - gcctype = GCC_STANDARD - return GnuFortranCompiler([compiler], version, gcctype, is_cross, exe_wrap) + defines = self.get_gnu_compiler_defines([compiler]) + if not defines: + popen_exceptions[compiler] = 'no pre-processor defines' + continue + gtype = self.get_gnu_compiler_type(defines) + return GnuFortranCompiler([compiler], version, gtype, is_cross, exe_wrap, defines) if 'G95' in out: return G95FortranCompiler([compiler], version, is_cross, exe_wrap) @@ -483,16 +518,13 @@ class Environment(): version = vmatch.group(0) else: version = 'unknown version' - if 'apple' in out and 'Free Software Foundation' in out: - return GnuCPPCompiler(ccache + [compiler], version, GCC_OSX, is_cross, exe_wrap) - if (out.startswith('c++ ') or 'g++' in out or 'GCC' in out) and \ - 'Free Software Foundation' in out: - lowerout = out.lower() - if 'mingw' in lowerout or 'msys' in lowerout or 'mingw' in compiler.lower(): - gtype = GCC_MINGW - else: - gtype = GCC_STANDARD - return GnuCPPCompiler(ccache + [compiler], version, gtype, is_cross, exe_wrap) + if 'Free Software Foundation' in out: + defines = self.get_gnu_compiler_defines([compiler]) + if not defines: + popen_exceptions[compiler] = 'no pre-processor defines' + continue + gtype = self.get_gnu_compiler_type(defines) + return GnuCPPCompiler(ccache + [compiler], version, gtype, is_cross, exe_wrap, defines) if 'clang' in out: if 'Apple' in out: cltype = CLANG_OSX @@ -533,13 +565,11 @@ class Environment(): version = vmatch.group(0) else: version = 'unknown version' - if (out.startswith('cc ') or 'gcc' in out) and \ - 'Free Software Foundation' in out: - return GnuObjCCompiler(exelist, version, is_cross, exe_wrap) + if 'Free Software Foundation' in out: + defines = self.get_gnu_compiler_defines(exelist) + return GnuObjCCompiler(exelist, version, is_cross, exe_wrap, defines) if out.startswith('Apple LLVM'): return ClangObjCCompiler(exelist, version, CLANG_OSX, is_cross, exe_wrap) - if 'apple' in out and 'Free Software Foundation' in out: - return GnuObjCCompiler(exelist, version, is_cross, exe_wrap) raise EnvironmentException('Unknown compiler "' + ' '.join(exelist) + '"') def detect_objcpp_compiler(self, want_cross): @@ -566,13 +596,11 @@ class Environment(): version = vmatch.group(0) else: version = 'unknown version' - if (out.startswith('c++ ') or out.startswith('g++')) and \ - 'Free Software Foundation' in out: - return GnuObjCPPCompiler(exelist, version, is_cross, exe_wrap) + if 'Free Software Foundation' in out: + defines = self.get_gnu_compiler_defines(exelist) + return GnuObjCPPCompiler(exelist, version, is_cross, exe_wrap, defines) if out.startswith('Apple LLVM'): return ClangObjCPPCompiler(exelist, version, CLANG_OSX, is_cross, exe_wrap) - if 'apple' in out and 'Free Software Foundation' in out: - return GnuObjCPPCompiler(exelist, version, is_cross, exe_wrap) raise EnvironmentException('Unknown compiler "' + ' '.join(exelist) + '"') def detect_java_compiler(self): |