Add the musl package

packages/musl/conanfile.py

@@ -0,0 +1,81 @@
+# Toolchain builder for the Serene programming language
+#
+# Copyright (c) 2019-2023 Sameer Rahmani <lxsameer@gnu.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 2.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+import os
+import shutil
+from pathlib import Path
+
+from conan import ConanFile
+from conan.tools.gnu import AutotoolsToolchain, Autotools
+
+from conan.tools.files import get
+
+from conf.utils import current_dir, get_version
+
+
+class Musl(ConanFile):
+    name = "musl"
+    settings = "os", "arch", "build_type"
+    version = get_version("musl")
+
+    def build_requirements(self):
+        self.requires(
+            f"kernel-headers/{get_version('kernel')}@{self.user}/{self.channel}"
+        )
+
+        self.tool_requires(
+            f"clang-bootstrap/{get_version('llvm')}@{self.user}/{self.channel}"
+        )
+
+    @property
+    def target(self):
+        return os.environ["TARGET"]
+
+    def source(self):
+        get(
+            self,
+            f"https://git.musl-libc.org/cgit/musl/snapshot/musl-{self.version}.tar.gz",
+        )
+
+    def generate(self):
+        tc = AutotoolsToolchain(self, prefix=f"{self.package_folder}/")
+        env = tc.environment()
+        buildenv = self.dependencies.build["clang-bootstrap"].buildenv_info.vars(self)
+
+        tc.update_configure_args(
+            {
+                "--enable-shared": "",
+                "--enable-static": "",
+                "--disable-wrapper": "",
+                "--enable-optimize": "",
+            }
+        )
+
+        libcc_dir = Path(buildenv["LIBCC_GNU"])
+        if "musl" in self.target:
+            libcc_dir = Path(buildenv["LIBCC_MUSL"])
+
+        env.define("LIBCC", str(libcc_dir / "libclang_rt.builtins.a"))
+        # We will strip the debug data later
+        tc.extra_cflags = ["-g", f"--target={self.target}"]
+        tc.generate(env)
+
+    def build(self):
+        autotools = Autotools(self)
+        autotools.configure(
+            build_script_folder=f"{self.source_folder}/musl-{self.version}/"
+        )
+        autotools.make()
+        autotools.make(target="install")