libmount: Add 2.40.2 and use Meson

recipes/libmount/config.yml

@@ -1,4 +1,6 @@
 versions:
+  "2.40.1":
+    folder: meson
   "2.39.2":
     folder: all
   "2.39":

recipes/libmount/meson/conandata.yml

@@ -0,0 +1,4 @@
+sources:
+  "2.40.1":
+    url: "https://mirrors.edge.kernel.org/pub/linux/utils/util-linux/v2.40/util-linux-2.40.1.tar.xz"
+    sha256: "59e676aa53ccb44b6c39f0ffe01a8fa274891c91bef1474752fad92461def24f"

recipes/libmount/meson/conanfile.py

@@ -0,0 +1,103 @@
+from conan import ConanFile
+from conan.errors import ConanInvalidConfiguration
+from conan.tools.env import VirtualBuildEnv
+from conan.tools.files import apply_conandata_patches, copy, export_conandata_patches, get, replace_in_file, rm, rmdir
+from conan.tools.layout import basic_layout
+from conan.tools.meson import Meson, MesonToolchain
+import os
+
+required_conan_version = ">=1.53.0"
+
+
+class LibmountConan(ConanFile):
+    name = "libmount"
+    description = (
+        "The libmount library is used to parse /etc/fstab, /etc/mtab and "
+        "/proc/self/mountinfo files, manage the mtab file, evaluate mount options, etc"
+    )
+    topics = ("mount", "linux", "util-linux")
+    url = "https://github.com/conan-io/conan-center-index"
+    homepage = "https://git.kernel.org/pub/scm/utils/util-linux/util-linux.git"
+    license = "LGPL-2.1-or-later"
+    package_type = "library"
+    settings = "os", "arch", "compiler", "build_type"
+    options = {
+        "shared": [True, False],
+        "fPIC": [True, False],
+    }
+    default_options = {
+        "shared": False,
+        "fPIC": True,
+    }
+
+    def export_sources(self):
+        export_conandata_patches(self)
+
+    def configure(self):
+        if self.options.shared:
+            self.options.rm_safe("fPIC")
+        self.settings.rm_safe("compiler.cppstd")
+        self.settings.rm_safe("compiler.libcxx")
+
+    def layout(self):
+        basic_layout(self, src_folder="src")
+
+    def validate(self):
+        if self.settings.os != "Linux":
+            raise ConanInvalidConfiguration(f"{self.ref} only supports Linux")
+
+    def build_requirements(self):
+        self.tool_requires("bison/3.8.2")
+        self.tool_requires("flex/2.6.4")
+        self.tool_requires("meson/1.3.2")
+        if not self.conf.get("tools.gnu:pkg_config", default=False, check_type=str):
+            self.tool_requires("pkgconf/2.1.0")
+
+    def source(self):
+        get(self, **self.conan_data["sources"][self.version], strip_root=True)
+
+    def generate(self):
+        tc = MesonToolchain(self)
+        tc.project_options["auto_features"] = "disabled"
+        tc.project_options["build-libblkid"] = "enabled"
+        tc.project_options["build-libmount"] = "enabled"
+        # Enable libutil for older versions of glibc which still provide an actual libutil library.
+        tc.project_options["libutil"] = "enabled"
+        tc.project_options["program-tests"] = False
+        tc.generate()
+        virtual_build_env = VirtualBuildEnv(self)
+        virtual_build_env.generate()
+
+    def _patch_sources(self):
+        apply_conandata_patches(self)
+        # Disable tests for libmount.
+        replace_in_file(self, os.path.join(self.source_folder, "libmount", "meson.build"), "foreach libmount_test: libmount_tests", "foreach libmount_test: []")
+
+    def build(self):
+        self._patch_sources()
+        meson = Meson(self)
+        meson.configure()
+        meson.build()
+
+    def package(self):
+        copy(self, "COPYING", os.path.join(self.source_folder, "libmount"), os.path.join(self.package_folder, "licenses"))
+        copy(self, "COPYING.LGPL-2.1-or-later", os.path.join(self.source_folder, "Documentation", "licenses"), os.path.join(self.package_folder, "licenses"))
+        meson = Meson(self)
+        meson.install()
+        rmdir(self, os.path.join(self.package_folder, "sbin"))
+        rmdir(self, os.path.join(self.package_folder, "share"))
+        rmdir(self, os.path.join(self.package_folder, "lib", "pkgconfig"))
+        rmdir(self, os.path.join(self.package_folder, "usr"))
+        rm(self, "*.la", os.path.join(self.package_folder, "lib"))
+        # util-linux always builds both the shared and static libraries of libblkid, so delete the one that isn't needed.
+        rm(self, "libblkid.a" if self.options.shared else "libblkid.so*", os.path.join(self.package_folder, "lib"))
+
+    def package_info(self):
+        self.cpp_info.components["libblkid"].libs = ["blkid"]
+        self.cpp_info.components["libblkid"].set_property("pkg_config_name", "blkid")
+
+        self.cpp_info.components["libmount"].libs = ["mount"]
+        self.cpp_info.components["libmount"].system_libs = ["rt"]
+        self.cpp_info.components["libmount"].includedirs.append(os.path.join("include", "libmount"))
+        self.cpp_info.components["libmount"].set_property("pkg_config_name", "mount")
+        self.cpp_info.components["libmount"].requires = ["libblkid"]

recipes/libmount/meson/patches/2.40-0001-meson-Only-require-the-crypt-library-when-necessary.patch

@@ -0,0 +1,33 @@
+From f52903f43c091fd4487811ce948fbc67f341bf97 Mon Sep 17 00:00:00 2001
+From: Jordan Williams <[email protected]>
+Date: Fri, 29 Mar 2024 10:31:27 -0500
+Subject: [PATCH] meson: Only require the crypt library when necessary
+
+The `crypt` library is only necessary for two executables.
+These are build-newgrp and build-sulogin.
+Don't otherwise require this dependency.
+
+Signed-off-by: Jordan Williams <[email protected]>
+---
+ meson.build | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/meson.build b/meson.build
+index bc335709d..a80f96460 100644
+--- a/meson.build
++++ b/meson.build
+@@ -346,7 +346,10 @@ lib_udev = dependency(
+   required : get_option('systemd'))
+ conf.set('HAVE_LIBUDEV', lib_udev.found() ? 1 : false)
+
+-lib_crypt = cc.find_library('crypt')
++lib_crypt = cc.find_library('crypt', required : get_option('build-newgrp'))
++if not lib_crypt.found()
++  lib_crypt = cc.find_library('crypt', required : get_option('build-sulogin'))
++endif
+
+ lib_pam = cc.find_library('pam', required : get_option('build-login'))
+ if not lib_pam.found()
+-- 
+2.44.0
+

recipes/libmount/meson/test_package/CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 3.15)
+project(test_package LANGUAGES C)
+
+find_package(libmount REQUIRED CONFIG)
+
+add_executable(${PROJECT_NAME} test_package.c)
+target_link_libraries(${PROJECT_NAME} PRIVATE libmount::libmount)

recipes/libmount/meson/test_package/conanfile.py

@@ -0,0 +1,26 @@
+from conan import ConanFile
+from conan.tools.build import can_run
+from conan.tools.cmake import CMake, cmake_layout
+import os
+
+
+class TestPackageConan(ConanFile):
+    settings = "os", "arch", "compiler", "build_type"
+    generators = "CMakeToolchain", "CMakeDeps", "VirtualRunEnv"
+    test_type = "explicit"
+
+    def layout(self):
+        cmake_layout(self)
+
+    def requirements(self):
+        self.requires(self.tested_reference_str)
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def test(self):
+        if can_run(self):
+            bin_path = os.path.join(self.cpp.build.bindirs[0], "test_package")
+            self.run(bin_path, env="conanrun")

recipes/libmount/meson/test_package/test_package.c

@@ -0,0 +1,16 @@
+#include <libmount/libmount.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+int main()
+{
+    struct libmnt_context *ctx = mnt_new_context();
+    if (!ctx) {
+        printf("failed to initialize libmount\n");
+        return EXIT_FAILURE;
+    }
+    printf("path to fstab: %s", mnt_get_fstab_path());
+    mnt_free_context(ctx);
+    return EXIT_SUCCESS;
+}