- Cherry-pick upstream patch to fix build with GCC 14

* https://github.com/scrapinghub/python-crfsuite/pull/159.patch

OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-python-crfsuite?expand=0&rev=11

159.patch

@@ -0,0 +1,28 @@
+From df2857fff3c492692ca09f31699972970042bc07 Mon Sep 17 00:00:00 2001
+From: Michael Karcher <github@mkarcher.dialup.fu-berlin.de>
+Date: Wed, 12 Jun 2024 22:42:45 +0200
+Subject: [PATCH] Define _POSIX_C_SOURCE for crfsuite source files
+
+gcc-14 has "-Werror=implicit-function-declaration" enabled by default.
+crfsuite uses posix_memalign which only gets defined when _POSIX_C_SOURCE is
+defined, so make sure the flag is set when compiling crfsuite.
+
+On the other hand, openSUSE Tumbleweed has _POSIX_C_SOURCE defined
+in pyconfig.h, so you must not add "-D_POSIX_C_SOURCE" when compiling
+the python binding source code. So add it only for the subdir crfsuite.
+---
+ setup.py | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/setup.py b/setup.py
+index 8036363..f0dc370 100755
+--- a/setup.py
++++ b/setup.py
+@@ -30,6 +30,7 @@ def build_extensions(self):
+         _compile = c._compile
+ 
+         def c_compile(obj, src, ext, cc_args, extra_postargs, pp_opts):
++            cc_args = cc_args + ['-D_POSIX_C_SOURCE=200112L'] if src.startswith('crfsuite/') else cc_args
+             cc_args = cc_args + ['-std=c99'] if src.endswith('.c') else cc_args
+             return _compile(obj, src, ext, cc_args, extra_postargs, pp_opts)
+