diff options
Diffstat (limited to 'mesonbuild/environment.py')
| -rw-r--r-- | mesonbuild/environment.py | 38 |
1 files changed, 29 insertions, 9 deletions
diff --git a/mesonbuild/environment.py b/mesonbuild/environment.py index 6ff93cb..c4591b4 100644 --- a/mesonbuild/environment.py +++ b/mesonbuild/environment.py @@ -192,6 +192,7 @@ class Environment(): ccache = self.detect_ccache() is_cross = False exe_wrap = None + popen_exceptions = {} for compiler in compilers: try: basename = os.path.basename(compiler).lower() @@ -199,9 +200,10 @@ class Environment(): arg = '/?' else: arg = '--version' - p = subprocess.Popen([compiler] + [arg], stdout=subprocess.PIPE, + p = subprocess.Popen([compiler, arg], stdout=subprocess.PIPE, stderr=subprocess.PIPE) - except OSError: + except OSError as e: + popen_exceptions[' '.join([compiler, arg])] = e continue (out, err) = p.communicate() out = out.decode(errors='ignore') @@ -232,7 +234,12 @@ class Environment(): # everything else to stdout. Why? Lord only knows. version = re.search(Environment.version_regex, err).group() return VisualStudioCCompiler([compiler], version, is_cross, exe_wrap) - raise EnvironmentException('Unknown compiler(s): "' + ', '.join(compilers) + '"') + errmsg = 'Unknown compiler(s): "' + ', '.join(compilers) + '"' + if popen_exceptions: + errmsg += '\nThe follow exceptions were encountered:' + for (c, e) in popen_exceptions.items(): + errmsg += '\nRunning "{0}" gave "{1}"'.format(c, e) + raise EnvironmentException(errmsg) def detect_fortran_compiler(self, want_cross): evar = 'FC' @@ -248,13 +255,15 @@ class Environment(): compilers = self.default_fortran is_cross = False exe_wrap = None + popen_exceptions = {} for compiler in compilers: for arg in ['--version', '-V']: try: - p = subprocess.Popen([compiler] + [arg], + p = subprocess.Popen([compiler, arg], stdout=subprocess.PIPE, stderr=subprocess.PIPE) - except OSError: + except OSError as e: + popen_exceptions[' '.join([compiler, arg])] = e continue (out, err) = p.communicate() out = out.decode(errors='ignore') @@ -292,8 +301,12 @@ class Environment(): if 'NAG Fortran' in err: return NAGFortranCompiler([compiler], version, is_cross, exe_wrap) - - raise EnvironmentException('Unknown compiler(s): "' + ', '.join(compilers) + '"') + errmsg = 'Unknown compiler(s): "' + ', '.join(compilers) + '"' + if popen_exceptions: + errmsg += '\nThe follow exceptions were encountered:' + for (c, e) in popen_exceptions.items(): + errmsg += '\nRunning "{0}" gave "{1}"'.format(c, e) + raise EnvironmentException(errmsg) def get_scratch_dir(self): return self.scratch_dir @@ -319,6 +332,7 @@ class Environment(): ccache = self.detect_ccache() is_cross = False exe_wrap = None + popen_exceptions = {} for compiler in compilers: basename = os.path.basename(compiler).lower() if basename == 'cl' or basename == 'cl.exe': @@ -329,7 +343,8 @@ class Environment(): p = subprocess.Popen([compiler, arg], stdout=subprocess.PIPE, stderr=subprocess.PIPE) - except OSError: + except OSError as e: + popen_exceptions[' '.join([compiler, arg])] = e continue (out, err) = p.communicate() out = out.decode(errors='ignore') @@ -358,7 +373,12 @@ class Environment(): if 'Microsoft' in out or 'Microsoft' in err: version = re.search(Environment.version_regex, err).group() return VisualStudioCPPCompiler([compiler], version, is_cross, exe_wrap) - raise EnvironmentException('Unknown compiler(s) "' + ', '.join(compilers) + '"') + errmsg = 'Unknown compiler(s): "' + ', '.join(compilers) + '"' + if popen_exceptions: + errmsg += '\nThe follow exceptions were encountered:' + for (c, e) in popen_exceptions.items(): + errmsg += '\nRunning "{0}" gave "{1}"'.format(c, e) + raise EnvironmentException(errmsg) def detect_objc_compiler(self, want_cross): if self.is_cross_build() and want_cross: |