Add CMake build

Co-Authored-by: John Ericson <John.Ericson@Obsidian.Systems>

.gitignore

@@ -18,6 +18,8 @@ Makefile
 .deps
 *.o
 
+CMakeLists.txt.user
+
 /tests/*.log
 /tests/*.trs
 /tests/no-rpath

CMakeLists.txt

@@ -0,0 +1,31 @@
+cmake_minimum_required(VERSION 3.5)
+
+project(patchelf)
+
+include(GNUInstallDirs)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+set(PAGESIZE 4096)
+
+set(ADDITIONAL_HEADERS src/elf.h)
+
+set(SOURCES src/patchelf.cc)
+
+file(READ version VERSION)
+
+add_executable(${PROJECT_NAME} ${SOURCES} ${ADDITIONAL_HEADERS})
+
+target_compile_definitions(
+  patchelf PRIVATE PAGESIZE=${PAGESIZE}
+                   PACKAGE_STRING="patchelf ${VERSION_STRING}")
+
+install(TARGETS patchelf RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+
+install(FILES patchelf.1 DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
+
+install(FILES README.md DESTINATION ${CMAKE_INSTALL_DOCDIR})
+
+install(FILES completions/zsh/_patchelf
+        DESTINATION ${CMAKE_INSTALL_DATADIR}/zsh/site-functions)

README.md

@@ -72,7 +72,7 @@ libraries.  In particular, it can do the following:
 
 ## Compiling and Testing
 
-### Via Autotools
+### Via [GNU Autotools](https://www.gnu.org/software/automake/manual/html_node/Autotools-Introduction.html)
 ```console
 ./bootstrap.sh
 ./configure
@@ -81,6 +81,16 @@ make check
 sudo make install
 ```
 
+## Via [CMake](https://cmake.org/) (and [Ninja](https://ninja-build.org/))
+
+```console
+mkdir build
+cd build
+cmake .. -GNinja
+ninja all
+sudo ninja install
+```
+
 ### Via Nix
 
 You can build with Nix in several ways.

flake.nix

@@ -30,27 +30,37 @@
       version = lib.removeSuffix "\n" (builtins.readFile ./version);
       pkgs = nixpkgs.legacyPackages.x86_64-linux;
 
-      src = lib.fileset.toSource {
+      baseSrcFiles = [
+        ./COPYING
+        ./README.md
+        ./completions
+        ./patchelf.1
+        ./patchelf.spec.in
+        ./src
+        ./tests
+        ./version
+      ];
+
+      autotoolsSrcFiles = [
+        ./Makefile.am
+        ./configure.ac
+        ./m4
+      ];
+
+      cmakeSrcFiles = [
+        ./CMakeLists.txt
+      ];
+
+      autotoolsSrc = lib.fileset.toSource {
         root = ./.;
-        fileset = lib.fileset.unions [
-          ./COPYING
-          ./Makefile.am
-          ./README.md
-          ./completions
-          ./configure.ac
-          ./m4
-          ./patchelf.1
-          ./patchelf.spec.in
-          ./src
-          ./tests
-          ./version
-        ];
+        fileset = lib.fileset.unions (baseSrcFiles ++ autotoolsSrcFiles);
       };
 
       patchelfFor =
         pkgs:
-        pkgs.callPackage ./package.nix {
-          inherit version src;
+        pkgs.callPackage ./package-autotools.nix {
+          inherit version;
+          src = autotoolsSrc;
         };
 
       # We don't apply flake-parts to the whole flake so that non-development attributes
@@ -76,7 +86,11 @@
       hydraJobs = {
         tarball = pkgs.releaseTools.sourceTarball rec {
           name = "patchelf-tarball";
-          inherit version src;
+          inherit version;
+          src = lib.fileset.toSource {
+            root = ./.;
+            fileset = lib.fileset.unions (baseSrcFiles ++ autotoolsSrcFiles ++ cmakeSrcFiles);
+          };
           versionSuffix = ""; # obsolete
           preAutoconf = "echo ${version} > version";
 
@@ -117,6 +131,8 @@
           })
         );
 
+        build-cmake = forAllSystems (system: self.packages.${system}.patchelf-cmake);
+
         # x86_64-linux seems to be only working clangStdenv at the moment
         build-sanitized-clang = lib.genAttrs [ "x86_64-linux" ] (
           system:
@@ -134,6 +150,7 @@
             self.hydraJobs.tarball
             self.hydraJobs.build.x86_64-linux
             self.hydraJobs.build.i686-linux
+            self.hydraJobs.build-cmake.x86_64-linux
             # FIXME: add aarch64 emulation to our github action...
             #self.hydraJobs.build.aarch64-linux
             self.hydraJobs.build-sanitized.x86_64-linux
@@ -172,8 +189,10 @@
                   }";
                 };
                 nativeBuildInputs = (old.nativeBuildInputs or [ ]) ++ [
+                  #pkgs.buildPackages.cmake
+                  #pkgs.buildPackages.ninja
                   modular.pre-commit.settings.package
-                  (pkgs.writeScriptBin "pre-commit-hooks-install" modular.pre-commit.settings.installationScript)
+                  (pkgs.buildPackages.writeScriptBin "pre-commit-hooks-install" modular.pre-commit.settings.installationScript)
                 ];
               }
             );
@@ -194,8 +213,9 @@
 
           patchelfForWindowsStatic =
             pkgs:
-            (pkgs.callPackage ./package.nix {
-              inherit version src;
+            (pkgs.callPackage ./package-autotools.nix {
+              inherit version;
+              src = autotoolsSrc;
               # On windows we use win32 threads to get a static binary,
               # otherwise `-static` below doesn't work.
               stdenv = pkgs.stdenv.override (old: {
@@ -217,6 +237,14 @@
           patchelf = patchelfFor pkgs;
           default = self.packages.${system}.patchelf;
 
+          patchelf-cmake = pkgs.callPackage ./package-cmake.nix {
+            inherit version;
+            src = lib.fileset.toSource {
+              root = ./.;
+              fileset = lib.fileset.unions (baseSrcFiles ++ cmakeSrcFiles);
+            };
+          };
+
           # This is a good test to see if packages can be cross-compiled. It also
           # tests if our testsuite uses target-prefixed executable names.
           patchelf-musl-cross = patchelfFor pkgs.pkgsCross.musl64;

maintainers/flake-module.nix

@@ -37,6 +37,9 @@
               fi
             ''}";
           };
+          cmake-format = {
+            enable = true;
+          };
           nixfmt-rfc-style = {
             enable = true;
           };

package-cmake.nix

@@ -0,0 +1,17 @@
+{
+  stdenv,
+  cmake,
+  ninja,
+  version,
+  src,
+}:
+
+stdenv.mkDerivation {
+  pname = "patchelf";
+  inherit version src;
+  nativeBuildInputs = [
+    cmake
+    ninja
+  ];
+  doCheck = true;
+}