Init Conan recipe (fix #635)

conanfile.py

@@ -0,0 +1,77 @@
+from conans import ConanFile, CMake, tools
+
+
+class GoogleBenchmarkConan(ConanFile):
+    name = "benchmark"
+    version = "1.4.1"
+    description = "A microbenchmark support library."
+    url = "https://github.com/google/benchmark"
+    homepage = "https://github.com/google/benchmark"
+    license = "Apache-2.0"
+    settings = "arch", "build_type", "compiler", "os"
+    options = {
+        "shared": [True, False],
+        "fPIC": [True, False],
+        "enable_exceptions": [True, False],
+        "enable_lto": [True, False],
+        "enable_testing": [True, False],
+        "enable_gtest_tests": [True, False]
+    }
+    default_options = "shared=False", "fPIC=True", "enable_exceptions=True", "enable_lto=False", "enable_testing=False", "enable_gtest_tests=False"
+    exports_sources = ["*"]
+    generators = "cmake"
+
+    build_subfolder = "."
+
+    def config_options(self):
+        if self.settings.os == 'Windows':
+            del self.options.fPIC
+
+    def configure(self):
+        if self.settings.os == 'Windows' and self.options.shared:
+            raise Exception("Windows shared builds are not supported right now, see issue #639")
+
+        if self.options.enable_testing == False:
+            self.options.enable_gtest_tests = False
+
+    def _configure_cmake(self):
+        cmake = CMake(self)
+        cmake.definitions['BENCHMARK_ENABLE_TESTING'] = "ON" if self.options.enable_testing else "OFF"
+        cmake.definitions['BENCHMARK_ENABLE_GTEST_TESTS'] = "ON" if self.options.enable_gtest_tests and self.options.enable_testing else "OFF"
+        cmake.definitions["BENCHMARK_ENABLE_LTO"] = "ON" if self.options.enable_lto else "OFF"
+        cmake.definitions["BENCHMARK_ENABLE_EXCEPTIONS"] = "ON" if self.options.enable_exceptions else "OFF"
+
+        # See https://github.com/google/benchmark/pull/638 for Windows 32 build explanation
+        if self.settings.os != "Windows":
+            cmake.definitions["BENCHMARK_BUILD_32_BITS"] = "ON" if "64" not in str(self.settings.arch) else "OFF"
+            cmake.definitions["BENCHMARK_USE_LIBCXX"] = "ON" if (str(self.settings.compiler.libcxx) == "libc++") else "OFF"
+        else:
+            cmake.definitions["BENCHMARK_USE_LIBCXX"] = "OFF"
+
+        cmake.configure(build_folder=self.build_subfolder)
+        return cmake
+
+    def build_requirements(self):
+        if self.options.enable_gtest_tests:
+            self.build_requires("gtest/1.8.0@bincrafters/stable")
+
+    def build(self):
+        tools.replace_in_file("CMakeLists.txt", "project (benchmark)", '''project (benchmark)
+        include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
+        conan_basic_setup()''')
+
+        cmake = self._configure_cmake()
+        cmake.build()
+
+    def package(self):
+        cmake = self._configure_cmake()
+        cmake.install()
+
+        self.copy(pattern="LICENSE", dst="licenses")
+
+    def package_info(self):
+        self.cpp_info.libs = tools.collect_libs(self)
+        if self.settings.os == "Linux":
+            self.cpp_info.libs.extend(["pthread", "rt"])
+        elif self.settings.os == "Windows":
+            self.cpp_info.libs.append("shlwapi")