We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
[package] fontconfig/2.13.93: Please make gettext dependency optional
### Package and Environment Details (include every applicable attribute)
  * Package Name/Version: **fontconfig/2.13.93**
  * Operating System+version: **MacOs**

The current recipe adds an unconditional dependency on libgettext/0.20.1 on MacOs.

Since libgettext is licensed under GPLv3, it places an additional license restriction to an otherwise more liberally licensed library.

</details>


--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `recipes/fontconfig/all/conanfile.py`
Content:
```
1 import os
2 import glob
3 
4 from conans import ConanFile, tools, AutoToolsBuildEnvironment
5 from conans.errors import ConanInvalidConfiguration
6 
7 
8 class FontconfigConan(ConanFile):
9     name = "fontconfig"
10     license = "MIT"
11     url = "https://github.com/conan-io/conan-center-index"
12     description = "Fontconfig is a library for configuring and customizing font access"
13     homepage = "https://gitlab.freedesktop.org/fontconfig/fontconfig"
14     topics = ("conan", "fontconfig", "fonts", "freedesktop")
15     settings = "os", "compiler", "build_type", "arch"
16     options = {"shared": [True, False], "fPIC": [True, False]}
17     default_options = {"shared": False, "fPIC": True}
18     generators = "pkg_config"
19 
20     _autotools = None
21 
22     @property
23     def _source_subfolder(self):
24         return "source_subfolder"
25 
26     def config_options(self):
27         if self.settings.os == "Windows":
28             del self.options.fPIC
29 
30     def configure(self):
31         if self.settings.compiler == "Visual Studio":
32             raise ConanInvalidConfiguration("Visual Studio builds are not supported.")
33         if self.options.shared:
34             del self.options.fPIC
35         del self.settings.compiler.libcxx
36         del self.settings.compiler.cppstd
37 
38     def requirements(self):
39         self.requires("freetype/2.10.4")
40         self.requires("expat/2.2.10")
41         if self.settings.os == "Linux":
42             self.requires("libuuid/1.0.3")
43         elif self.settings.os == "Macos":
44             self.requires("libgettext/0.20.1")
45 
46     def build_requirements(self):
47         self.build_requires("gperf/3.1")
48         self.build_requires("pkgconf/1.7.3")
49         if tools.os_info.is_windows and not tools.get_env("CONAN_BASH_PATH"):
50             self.build_requires("msys2/20200517")
51 
52     def source(self):
53         tools.get(**self.conan_data["sources"][self.version])
54         extrated_dir = self.name + "-" + self.version
55         os.rename(extrated_dir, self._source_subfolder)
56 
57     def _configure_autotools(self):
58         if not self._autotools:
59             args = ["--enable-static=%s" % ("no" if self.options.shared else "yes"),
60                     "--enable-shared=%s" % ("yes" if self.options.shared else "no"),
61                     "--disable-docs"]
62             args.append("--sysconfdir=%s" % tools.unix_path(os.path.join(self.package_folder, "bin", "etc")))
63             args.append("--datadir=%s" % tools.unix_path(os.path.join(self.package_folder, "bin", "share")))
64             args.append("--datarootdir=%s" % tools.unix_path(os.path.join(self.package_folder, "bin", "share")))
65             args.append("--localstatedir=%s" % tools.unix_path(os.path.join(self.package_folder, "bin", "var")))
66             self._autotools = AutoToolsBuildEnvironment(self, win_bash=tools.os_info.is_windows)
67             self._autotools.libs = []
68             self._autotools.configure(configure_dir=self._source_subfolder, args=args)
69             tools.replace_in_file("Makefile", "po-conf test", "po-conf")
70         return self._autotools
71 
72     def _patch_files(self):
73         #  - fontconfig requires libtool version number, change it for the corresponding freetype one
74         tools.replace_in_file(os.path.join(self._source_subfolder, 'configure'), '21.0.15', '2.8.1')
75 
76     def build(self):
77         # Patch files from dependencies
78         self._patch_files()
79         with tools.run_environment(self):
80             autotools = self._configure_autotools()
81             autotools.make()
82 
83     def package(self):
84         self.copy("COPYING", dst="licenses", src=self._source_subfolder)
85         with tools.run_environment(self):
86             autotools = self._configure_autotools()
87             autotools.install()
88         os.unlink(os.path.join(self.package_folder, "lib", "libfontconfig.la"))
89         tools.rmdir(os.path.join(self.package_folder, "lib", "pkgconfig"))
90         for f in glob.glob(os.path.join(self.package_folder, "bin", "etc", "fonts", "conf.d", "*.conf")):
91             if os.path.islink(f):
92                 os.unlink(f)
93         for def_file in glob.glob(os.path.join(self.package_folder, "lib", "*.def")):
94             os.remove(def_file)
95 
96     def package_info(self):
97         self.cpp_info.libs = ["fontconfig"]
98         if self.settings.os in ["Linux", "FreeBSD"]:
99             self.cpp_info.system_libs.extend(["m", "pthread"])
100         self.cpp_info.names["cmake_find_package"] = "Fontconfig"
101         self.cpp_info.names["cmake_find_package_multi"] = "Fontconfig"
102 
103         fontconfig_file = os.path.join(self.package_folder, "bin", "etc", "fonts", "fonts.conf")
104         self.output.info("Creating FONTCONFIG_FILE environment variable: {}".format(fontconfig_file))
105         self.env_info.FONTCONFIG_FILE = fontconfig_file
106         fontconfig_path = os.path.join(self.package_folder, "bin", "etc", "fonts")
107         self.output.info("Creating FONTCONFIG_PATH environment variable: {}".format(fontconfig_path))
108         self.env_info.FONTCONFIG_PATH = fontconfig_path
109
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/recipes/fontconfig/all/conanfile.py b/recipes/fontconfig/all/conanfile.py
--- a/recipes/fontconfig/all/conanfile.py
+++ b/recipes/fontconfig/all/conanfile.py
@@ -40,8 +40,6 @@
         self.requires("expat/2.2.10")
         if self.settings.os == "Linux":
             self.requires("libuuid/1.0.3")
-        elif self.settings.os == "Macos":
-            self.requires("libgettext/0.20.1")
 
     def build_requirements(self):
         self.build_requires("gperf/3.1")
@@ -58,7 +56,9 @@
         if not self._autotools:
             args = ["--enable-static=%s" % ("no" if self.options.shared else "yes"),
                     "--enable-shared=%s" % ("yes" if self.options.shared else "no"),
-                    "--disable-docs"]
+                    "--disable-docs",
+                    "--disable-nls",
+                   ]
             args.append("--sysconfdir=%s" % tools.unix_path(os.path.join(self.package_folder, "bin", "etc")))
             args.append("--datadir=%s" % tools.unix_path(os.path.join(self.package_folder, "bin", "share")))
             args.append("--datarootdir=%s" % tools.unix_path(os.path.join(self.package_folder, "bin", "share")))

{"golden_diff": "diff --git a/recipes/fontconfig/all/conanfile.py b/recipes/fontconfig/all/conanfile.py\n--- a/recipes/fontconfig/all/conanfile.py\n+++ b/recipes/fontconfig/all/conanfile.py\n@@ -40,8 +40,6 @@\n         self.requires(\"expat/2.2.10\")\n         if self.settings.os == \"Linux\":\n             self.requires(\"libuuid/1.0.3\")\n-        elif self.settings.os == \"Macos\":\n-            self.requires(\"libgettext/0.20.1\")\n \n     def build_requirements(self):\n         self.build_requires(\"gperf/3.1\")\n@@ -58,7 +56,9 @@\n         if not self._autotools:\n             args = [\"--enable-static=%s\" % (\"no\" if self.options.shared else \"yes\"),\n                     \"--enable-shared=%s\" % (\"yes\" if self.options.shared else \"no\"),\n-                    \"--disable-docs\"]\n+                    \"--disable-docs\",\n+                    \"--disable-nls\",\n+                   ]\n             args.append(\"--sysconfdir=%s\" % tools.unix_path(os.path.join(self.package_folder, \"bin\", \"etc\")))\n             args.append(\"--datadir=%s\" % tools.unix_path(os.path.join(self.package_folder, \"bin\", \"share\")))\n             args.append(\"--datarootdir=%s\" % tools.unix_path(os.path.join(self.package_folder, \"bin\", \"share\")))\n", "issue": "[package] fontconfig/2.13.93: Please make gettext dependency optional\n### Package and Environment Details (include every applicable attribute)\r\n  * Package Name/Version: **fontconfig/2.13.93**\r\n  * Operating System+version: **MacOs**\r\n\r\nThe current recipe adds an unconditional dependency on libgettext/0.20.1 on MacOs.\r\n\r\nSince libgettext is licensed under GPLv3, it places an additional license restriction to an otherwise more liberally licensed library.\r\n\r\n</details>\r\n\n", "before_files": [{"content": "import os\nimport glob\n\nfrom conans import ConanFile, tools, AutoToolsBuildEnvironment\nfrom conans.errors import ConanInvalidConfiguration\n\n\nclass FontconfigConan(ConanFile):\n    name = \"fontconfig\"\n    license = \"MIT\"\n    url = \"https://github.com/conan-io/conan-center-index\"\n    description = \"Fontconfig is a library for configuring and customizing font access\"\n    homepage = \"https://gitlab.freedesktop.org/fontconfig/fontconfig\"\n    topics = (\"conan\", \"fontconfig\", \"fonts\", \"freedesktop\")\n    settings = \"os\", \"compiler\", \"build_type\", \"arch\"\n    options = {\"shared\": [True, False], \"fPIC\": [True, False]}\n    default_options = {\"shared\": False, \"fPIC\": True}\n    generators = \"pkg_config\"\n\n    _autotools = None\n\n    @property\n    def _source_subfolder(self):\n        return \"source_subfolder\"\n\n    def config_options(self):\n        if self.settings.os == \"Windows\":\n            del self.options.fPIC\n\n    def configure(self):\n        if self.settings.compiler == \"Visual Studio\":\n            raise ConanInvalidConfiguration(\"Visual Studio builds are not supported.\")\n        if self.options.shared:\n            del self.options.fPIC\n        del self.settings.compiler.libcxx\n        del self.settings.compiler.cppstd\n\n    def requirements(self):\n        self.requires(\"freetype/2.10.4\")\n        self.requires(\"expat/2.2.10\")\n        if self.settings.os == \"Linux\":\n            self.requires(\"libuuid/1.0.3\")\n        elif self.settings.os == \"Macos\":\n            self.requires(\"libgettext/0.20.1\")\n\n    def build_requirements(self):\n        self.build_requires(\"gperf/3.1\")\n        self.build_requires(\"pkgconf/1.7.3\")\n        if tools.os_info.is_windows and not tools.get_env(\"CONAN_BASH_PATH\"):\n            self.build_requires(\"msys2/20200517\")\n\n    def source(self):\n        tools.get(**self.conan_data[\"sources\"][self.version])\n        extrated_dir = self.name + \"-\" + self.version\n        os.rename(extrated_dir, self._source_subfolder)\n\n    def _configure_autotools(self):\n        if not self._autotools:\n            args = [\"--enable-static=%s\" % (\"no\" if self.options.shared else \"yes\"),\n                    \"--enable-shared=%s\" % (\"yes\" if self.options.shared else \"no\"),\n                    \"--disable-docs\"]\n            args.append(\"--sysconfdir=%s\" % tools.unix_path(os.path.join(self.package_folder, \"bin\", \"etc\")))\n            args.append(\"--datadir=%s\" % tools.unix_path(os.path.join(self.package_folder, \"bin\", \"share\")))\n            args.append(\"--datarootdir=%s\" % tools.unix_path(os.path.join(self.package_folder, \"bin\", \"share\")))\n            args.append(\"--localstatedir=%s\" % tools.unix_path(os.path.join(self.package_folder, \"bin\", \"var\")))\n            self._autotools = AutoToolsBuildEnvironment(self, win_bash=tools.os_info.is_windows)\n            self._autotools.libs = []\n            self._autotools.configure(configure_dir=self._source_subfolder, args=args)\n            tools.replace_in_file(\"Makefile\", \"po-conf test\", \"po-conf\")\n        return self._autotools\n\n    def _patch_files(self):\n        #  - fontconfig requires libtool version number, change it for the corresponding freetype one\n        tools.replace_in_file(os.path.join(self._source_subfolder, 'configure'), '21.0.15', '2.8.1')\n\n    def build(self):\n        # Patch files from dependencies\n        self._patch_files()\n        with tools.run_environment(self):\n            autotools = self._configure_autotools()\n            autotools.make()\n\n    def package(self):\n        self.copy(\"COPYING\", dst=\"licenses\", src=self._source_subfolder)\n        with tools.run_environment(self):\n            autotools = self._configure_autotools()\n            autotools.install()\n        os.unlink(os.path.join(self.package_folder, \"lib\", \"libfontconfig.la\"))\n        tools.rmdir(os.path.join(self.package_folder, \"lib\", \"pkgconfig\"))\n        for f in glob.glob(os.path.join(self.package_folder, \"bin\", \"etc\", \"fonts\", \"conf.d\", \"*.conf\")):\n            if os.path.islink(f):\n                os.unlink(f)\n        for def_file in glob.glob(os.path.join(self.package_folder, \"lib\", \"*.def\")):\n            os.remove(def_file)\n\n    def package_info(self):\n        self.cpp_info.libs = [\"fontconfig\"]\n        if self.settings.os in [\"Linux\", \"FreeBSD\"]:\n            self.cpp_info.system_libs.extend([\"m\", \"pthread\"])\n        self.cpp_info.names[\"cmake_find_package\"] = \"Fontconfig\"\n        self.cpp_info.names[\"cmake_find_package_multi\"] = \"Fontconfig\"\n\n        fontconfig_file = os.path.join(self.package_folder, \"bin\", \"etc\", \"fonts\", \"fonts.conf\")\n        self.output.info(\"Creating FONTCONFIG_FILE environment variable: {}\".format(fontconfig_file))\n        self.env_info.FONTCONFIG_FILE = fontconfig_file\n        fontconfig_path = os.path.join(self.package_folder, \"bin\", \"etc\", \"fonts\")\n        self.output.info(\"Creating FONTCONFIG_PATH environment variable: {}\".format(fontconfig_path))\n        self.env_info.FONTCONFIG_PATH = fontconfig_path\n", "path": "recipes/fontconfig/all/conanfile.py"}], "after_files": [{"content": "import os\nimport glob\n\nfrom conans import ConanFile, tools, AutoToolsBuildEnvironment\nfrom conans.errors import ConanInvalidConfiguration\n\n\nclass FontconfigConan(ConanFile):\n    name = \"fontconfig\"\n    license = \"MIT\"\n    url = \"https://github.com/conan-io/conan-center-index\"\n    description = \"Fontconfig is a library for configuring and customizing font access\"\n    homepage = \"https://gitlab.freedesktop.org/fontconfig/fontconfig\"\n    topics = (\"conan\", \"fontconfig\", \"fonts\", \"freedesktop\")\n    settings = \"os\", \"compiler\", \"build_type\", \"arch\"\n    options = {\"shared\": [True, False], \"fPIC\": [True, False]}\n    default_options = {\"shared\": False, \"fPIC\": True}\n    generators = \"pkg_config\"\n\n    _autotools = None\n\n    @property\n    def _source_subfolder(self):\n        return \"source_subfolder\"\n\n    def config_options(self):\n        if self.settings.os == \"Windows\":\n            del self.options.fPIC\n\n    def configure(self):\n        if self.settings.compiler == \"Visual Studio\":\n            raise ConanInvalidConfiguration(\"Visual Studio builds are not supported.\")\n        if self.options.shared:\n            del self.options.fPIC\n        del self.settings.compiler.libcxx\n        del self.settings.compiler.cppstd\n\n    def requirements(self):\n        self.requires(\"freetype/2.10.4\")\n        self.requires(\"expat/2.2.10\")\n        if self.settings.os == \"Linux\":\n            self.requires(\"libuuid/1.0.3\")\n\n    def build_requirements(self):\n        self.build_requires(\"gperf/3.1\")\n        self.build_requires(\"pkgconf/1.7.3\")\n        if tools.os_info.is_windows and not tools.get_env(\"CONAN_BASH_PATH\"):\n            self.build_requires(\"msys2/20200517\")\n\n    def source(self):\n        tools.get(**self.conan_data[\"sources\"][self.version])\n        extrated_dir = self.name + \"-\" + self.version\n        os.rename(extrated_dir, self._source_subfolder)\n\n    def _configure_autotools(self):\n        if not self._autotools:\n            args = [\"--enable-static=%s\" % (\"no\" if self.options.shared else \"yes\"),\n                    \"--enable-shared=%s\" % (\"yes\" if self.options.shared else \"no\"),\n                    \"--disable-docs\",\n                    \"--disable-nls\",\n                   ]\n            args.append(\"--sysconfdir=%s\" % tools.unix_path(os.path.join(self.package_folder, \"bin\", \"etc\")))\n            args.append(\"--datadir=%s\" % tools.unix_path(os.path.join(self.package_folder, \"bin\", \"share\")))\n            args.append(\"--datarootdir=%s\" % tools.unix_path(os.path.join(self.package_folder, \"bin\", \"share\")))\n            args.append(\"--localstatedir=%s\" % tools.unix_path(os.path.join(self.package_folder, \"bin\", \"var\")))\n            self._autotools = AutoToolsBuildEnvironment(self, win_bash=tools.os_info.is_windows)\n            self._autotools.libs = []\n            self._autotools.configure(configure_dir=self._source_subfolder, args=args)\n            tools.replace_in_file(\"Makefile\", \"po-conf test\", \"po-conf\")\n        return self._autotools\n\n    def _patch_files(self):\n        #  - fontconfig requires libtool version number, change it for the corresponding freetype one\n        tools.replace_in_file(os.path.join(self._source_subfolder, 'configure'), '21.0.15', '2.8.1')\n\n    def build(self):\n        # Patch files from dependencies\n        self._patch_files()\n        with tools.run_environment(self):\n            autotools = self._configure_autotools()\n            autotools.make()\n\n    def package(self):\n        self.copy(\"COPYING\", dst=\"licenses\", src=self._source_subfolder)\n        with tools.run_environment(self):\n            autotools = self._configure_autotools()\n            autotools.install()\n        os.unlink(os.path.join(self.package_folder, \"lib\", \"libfontconfig.la\"))\n        tools.rmdir(os.path.join(self.package_folder, \"lib\", \"pkgconfig\"))\n        for f in glob.glob(os.path.join(self.package_folder, \"bin\", \"etc\", \"fonts\", \"conf.d\", \"*.conf\")):\n            if os.path.islink(f):\n                os.unlink(f)\n        for def_file in glob.glob(os.path.join(self.package_folder, \"lib\", \"*.def\")):\n            os.remove(def_file)\n\n    def package_info(self):\n        self.cpp_info.libs = [\"fontconfig\"]\n        if self.settings.os in [\"Linux\", \"FreeBSD\"]:\n            self.cpp_info.system_libs.extend([\"m\", \"pthread\"])\n        self.cpp_info.names[\"cmake_find_package\"] = \"Fontconfig\"\n        self.cpp_info.names[\"cmake_find_package_multi\"] = \"Fontconfig\"\n\n        fontconfig_file = os.path.join(self.package_folder, \"bin\", \"etc\", \"fonts\", \"fonts.conf\")\n        self.output.info(\"Creating FONTCONFIG_FILE environment variable: {}\".format(fontconfig_file))\n        self.env_info.FONTCONFIG_FILE = fontconfig_file\n        fontconfig_path = os.path.join(self.package_folder, \"bin\", \"etc\", \"fonts\")\n        self.output.info(\"Creating FONTCONFIG_PATH environment variable: {}\".format(fontconfig_path))\n        self.env_info.FONTCONFIG_PATH = fontconfig_path\n", "path": "recipes/fontconfig/all/conanfile.py"}]}