vcpkg/ports/python3/0011-gcc-ldflags-fix.patch

From 84652c4c5658fd443a05bf54fe6040857ba9c36c Mon Sep 17 00:00:00 2001
From: Christoph Neuhauser <c.a.neuhauser@gmail.com>
Date: Sat, 15 Oct 2022 01:14:12 +0200
Subject: [PATCH 11/11] gcc ldflags fix

---
 Lib/distutils/unixccompiler.py | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/Lib/distutils/unixccompiler.py b/Lib/distutils/unixccompiler.py
index d00c48981e..b14ce8454e 100644
--- a/Lib/distutils/unixccompiler.py
+++ b/Lib/distutils/unixccompiler.py
@@ -13,7 +13,7 @@
   * link shared library handled by 'cc -shared'
 """
 
-import os, sys, re
+import os, sys, re, shutil
 
 from distutils import sysconfig
 from distutils.dep_util import newer
@@ -216,7 +216,27 @@ def library_dir_option(self, dir):
 
     def _is_gcc(self, compiler_name):
         # clang uses same syntax for rpath as gcc
-        return any(name in compiler_name for name in ("gcc", "g++", "clang"))
+        valid_compiler_names = ("gcc", "g++", "clang")
+        is_gcc = any(name in compiler_name for name in valid_compiler_names)
+        # On Linux systems, the compiler name may be, e.g., "cc -pthread".
+        # The executable "cc" is in this case a symlink to the true compiler.
+        if not is_gcc and "cc" in compiler_name:
+            # We need to make sure that this is not another compiler with "cc"
+            # at the end of its name, like "icc". For this, it is checked
+            # whether "cc" is the first word, or separated by a space or path
+            # delimiter before the "cc" substring.
+            cc_string_location = compiler_name.find("cc")
+            if cc_string_location == 0 \
+                    or compiler_name[cc_string_location - 1] == ' ' \
+                    or compiler_name[cc_string_location - 1] == '/' \
+                    or compiler_name[cc_string_location - 1] == '\\':
+                cc_path = shutil.which("cc")
+                if cc_path is not None:
+                    real_compiler_path = os.path.realpath(cc_path)
+                    is_gcc = any(
+                        name in real_compiler_path \
+                        for name in valid_compiler_names)
+        return is_gcc
 
     def runtime_library_dir_option(self, dir):
         # XXX Hackish, at the very least.  See Python bug #445902:
-- 
2.37.3.windows.1