compilers/gnu: use Popen_safe to prevent resource leaks
Fixes the following ResourceWarnings:
ResourceWarning: subprocess 25556 is still running
_warn("subprocess %s is still running" % self.pid,
ResourceWarning: Enable tracemalloc to get the object allocation traceback
mesonbuild/compilers/mixins/gnu.py:195: ResourceWarning: unclosed file <_io.BufferedReader name=4>
return gnulike_default_include_dirs(tuple(self.exelist), self.language).copy()
ResourceWarning: Enable tracemalloc to get the object allocation traceback
diff --git a/mesonbuild/compilers/mixins/gnu.py b/mesonbuild/compilers/mixins/gnu.py
index b91788c..91e07e5 100644
--- a/mesonbuild/compilers/mixins/gnu.py
+++ b/mesonbuild/compilers/mixins/gnu.py
@@ -106,14 +106,7 @@
env = os.environ.copy()
env["LC_ALL"] = 'C'
cmd = list(compiler) + [f'-x{lang}', '-E', '-v', '-']
- p = subprocess.Popen(
- cmd,
- stdin=subprocess.DEVNULL,
- stderr=subprocess.STDOUT,
- stdout=subprocess.PIPE,
- env=env
- )
- stdout = p.stdout.read().decode('utf-8', errors='replace')
+ _, stdout, _ = mesonlib.Popen_safe(cmd, stderr=subprocess.STDOUT, env=env)
parse_state = 0
paths = [] # type: T.List[str]
for line in stdout.split('\n'):
