1 files changed, 111 insertions, 0 deletions
diff --git a/src/third_party/scons-3.1.1/scons-local-3.1.1/SCons/Tool/gcc.py b/src/third_party/scons-3.1.1/scons-local-3.1.1/SCons/Tool/gcc.py
new file mode 100644
index 00000000000..4f70be5fe0e
--- /dev/null
+++ b/src/third_party/scons-3.1.1/scons-local-3.1.1/SCons/Tool/gcc.py
@@ -0,0 +1,111 @@
+"""SCons.Tool.gcc
+
+Tool-specific initialization for gcc.
+
+There normally shouldn't be any need to import this module directly.
+It will usually be imported through the generic SCons.Tool.Tool()
+selection method.
+
+"""
+
+#
+# Copyright (c) 2001 - 2019 The SCons Foundation
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+__revision__ = "src/engine/SCons/Tool/gcc.py 72ae09dc35ac2626f8ff711d8c4b30b6138e08e3 2019-08-08 14:50:06 bdeegan"
+
+from . import cc
+import os
+import re
+import subprocess
+
+import SCons.Util
+
+compilers = ['gcc', 'cc']
+
+
+def generate(env):
+    """Add Builders and construction variables for gcc to an Environment."""
+
+    if 'CC' not in env:
+        env['CC'] = env.Detect(compilers) or compilers[0]
+
+    cc.generate(env)
+
+    if env['PLATFORM'] in ['cygwin', 'win32']:
+        env['SHCCFLAGS'] = SCons.Util.CLVar('$CCFLAGS')
+    else:
+        env['SHCCFLAGS'] = SCons.Util.CLVar('$CCFLAGS -fPIC')
+    # determine compiler version
+    version = detect_version(env, env['CC'])
+    if version:
+        env['CCVERSION'] = version
+
+
+def exists(env):
+    # is executable, and is a GNU compiler (or accepts '--version' at least)
+    return detect_version(env, env.Detect(env.get('CC', compilers)))
+
+
+def detect_version(env, cc):
+    """Return the version of the GNU compiler, or None if it is not a GNU compiler."""
+    version = None
+    cc = env.subst(cc)
+    if not cc:
+        return version
+
+    # -dumpversion was added in GCC 3.0.  As long as we're supporting
+    # GCC versions older than that, we should use --version and a
+    # regular expression.
+    # pipe = SCons.Action._subproc(env, SCons.Util.CLVar(cc) + ['-dumpversion'],
+    pipe = SCons.Action._subproc(env, SCons.Util.CLVar(cc) + ['--version'],
+                                 stdin='devnull',
+                                 stderr='devnull',
+                                 stdout=subprocess.PIPE)
+    if pipe.wait() != 0:
+        return version
+
+    with pipe.stdout:
+        # -dumpversion variant:
+        # line = pipe.stdout.read().strip()
+        # --version variant:
+        line = SCons.Util.to_str(pipe.stdout.readline())
+        # Non-GNU compiler's output (like AIX xlc's) may exceed the stdout buffer:
+        # So continue with reading to let the child process actually terminate.
+        while SCons.Util.to_str(pipe.stdout.readline()):
+            pass
+
+    # -dumpversion variant:
+    # if line:
+    #     version = line
+    # --version variant:
+    match = re.search(r'[0-9]+(\.[0-9]+)+', line)
+    if match:
+        version = match.group(0)
+
+    return version
+
+# Local Variables:
+# tab-width:4
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=4 shiftwidth=4: