libev: msvc support

recipes/libev/all/CMakeLists.txt

@@ -0,0 +1,22 @@
+cmake_minimum_required(VERSION 3.14)
+project(ev C)
+
+set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
+
+set(LIBEV_PUBLIC_HEADERS
+    ev.h
+    config.h)
+add_library(ev ev.c)
+target_link_libraries(ev PUBLIC ws2_32)
+target_compile_definitions(ev PRIVATE HAVE_CONFIG_H=1)
+target_include_directories(ev PUBLIC ${PROJECT_SOURCE_DIR})
+
+set_target_properties(ev PROPERTIES PUBLIC_HEADER "${LIBEV_PUBLIC_HEADERS}")
+include(GNUInstallDirs)
+
+install(TARGETS ev
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
+)

recipes/libev/all/conanfile.py

@@ -2,8 +2,9 @@
 from conan.errors import ConanInvalidConfiguration
 from conan.tools.apple import fix_apple_shared_install_name
 from conan.tools.env import VirtualBuildEnv
-from conan.tools.files import copy, get, rm, rmdir
+from conan.tools.files import apply_conandata_patches, export_conandata_patches, copy, get, rm, rmdir
 from conan.tools.gnu import Autotools, AutotoolsToolchain
+from conan.tools.cmake import CMake, CMakeToolchain
 from conan.tools.layout import basic_layout
 from conan.tools.microsoft import is_msvc, unix_path
 import os
@@ -33,6 +34,11 @@ class LibevConan(ConanFile):
     def _settings_build(self):
         return getattr(self, "settings_build", self.settings)
 
+    def export_sources(self):
+        copy(self, "CMakeLists.txt", self.recipe_folder, os.path.join(self.export_sources_folder, "src"))
+        copy(self, "config.h", self.recipe_folder, os.path.join(self.export_sources_folder, "src"))
+        export_conandata_patches(self)
+
     def config_options(self):
         if self.settings.os == "Windows":
             del self.options.fPIC
@@ -47,38 +53,51 @@ def layout(self):
         basic_layout(self, src_folder="src")
 
     def validate(self):
-        if is_msvc(self):
-            raise ConanInvalidConfiguration(f"{self.ref} is not supported by Visual Studio")
         if self.info.settings.os == "Windows" and self.info.options.shared:
             # libtool:   error: can't build i686-pc-mingw32 shared library unless -no-undefined is specified
             raise ConanInvalidConfiguration(f"{self.ref} can't be built as shared on Windows")
 
     def build_requirements(self):
-        if self._settings_build.os == "Windows":
+        if self._settings_build.os == "Windows" and not is_msvc(self):
             self.win_bash = True
             if not self.conf.get("tools.microsoft.bash:path", check_type=str):
                 self.tool_requires("msys2/cci.latest")
 
     def source(self):
         get(self, **self.conan_data["sources"][self.version],
             destination=self.source_folder, strip_root=True)
+        if not is_msvc(self):    
+            rm(self, "config.h", os.path.join(self.export_sources_folder, "src"))
 
     def generate(self):
-        env = VirtualBuildEnv(self)
-        env.generate()
-        tc = AutotoolsToolchain(self)
-        tc.generate()
+        if is_msvc(self):
+            tc = CMakeToolchain(self)
+            tc.generate()
+        else:    
+            env = VirtualBuildEnv(self)
+            env.generate()
+            tc = AutotoolsToolchain(self)
+            tc.generate()
 
     def build(self):
-        autotools = Autotools(self)
-        autotools.configure()
-        autotools.make()
+        if is_msvc(self):
+            apply_conandata_patches(self)
+            cmake = CMake(self)
+            cmake.configure()
+            cmake.build()
+        else:    
+            autotools = Autotools(self)
+            autotools.configure()
+            autotools.make()
 
     def package(self):
         copy(self, "LICENSE", src=self.source_folder, dst=os.path.join(self.package_folder, "licenses"))
-        autotools = Autotools(self)
-        # TODO: replace by autotools.install() once https://github.com/conan-io/conan/issues/12153 fixed
-        autotools.install(args=[f"DESTDIR={unix_path(self, self.package_folder)}"])
+        if is_msvc(self):
+            cmake = CMake(self)
+            cmake.install()
+        else:    
+            autotools = Autotools(self)
+            autotools.install(args=[f"DESTDIR={unix_path(self, self.package_folder)}"])
         rmdir(self, os.path.join(self.package_folder, "share"))
         rm(self, "*.la", os.path.join(self.package_folder, "lib"))
         fix_apple_shared_install_name(self)

recipes/libev/all/config.h

@@ -0,0 +1,128 @@
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Define to 1 if you have the `clock_gettime' function. */
+#undef HAVE_CLOCK_GETTIME
+
+/* Define to 1 to use the syscall interface for clock_gettime */
+#undef HAVE_CLOCK_SYSCALL
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#undef HAVE_DLFCN_H
+
+/* Define to 1 if you have the `epoll_ctl' function. */
+#undef HAVE_EPOLL_CTL
+
+/* Define to 1 if you have the `eventfd' function. */
+#undef HAVE_EVENTFD
+
+/* Define to 1 if the floor function is available */
+#undef HAVE_FLOOR
+
+/* Define to 1 if you have the `inotify_init' function. */
+#undef HAVE_INOTIFY_INIT
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define to 1 if you have the `kqueue' function. */
+#undef HAVE_KQUEUE
+
+/* Define to 1 if you have the `rt' library (-lrt). */
+#undef HAVE_LIBRT
+
+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
+/* Define to 1 if you have the `nanosleep' function. */
+#undef HAVE_NANOSLEEP
+
+/* Define to 1 if you have the `poll' function. */
+#undef HAVE_POLL
+
+/* Define to 1 if you have the <poll.h> header file. */
+#undef HAVE_POLL_H
+
+/* Define to 1 if you have the `port_create' function. */
+#undef HAVE_PORT_CREATE
+
+/* Define to 1 if you have the <port.h> header file. */
+#undef HAVE_PORT_H
+
+/* Define to 1 if you have the `select' function. */
+#undef HAVE_SELECT
+
+/* Define to 1 if you have the `signalfd' function. */
+#undef HAVE_SIGNALFD
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if you have the <sys/epoll.h> header file. */
+#undef HAVE_SYS_EPOLL_H
+
+/* Define to 1 if you have the <sys/eventfd.h> header file. */
+#undef HAVE_SYS_EVENTFD_H
+
+/* Define to 1 if you have the <sys/event.h> header file. */
+#undef HAVE_SYS_EVENT_H
+
+/* Define to 1 if you have the <sys/inotify.h> header file. */
+#undef HAVE_SYS_INOTIFY_H
+
+/* Define to 1 if you have the <sys/select.h> header file. */
+#undef HAVE_SYS_SELECT_H
+
+/* Define to 1 if you have the <sys/signalfd.h> header file. */
+#undef HAVE_SYS_SIGNALFD_H
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
+   */
+#undef LT_OBJDIR
+
+/* Name of package */
+#undef PACKAGE
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the home page for this package. */
+#undef PACKAGE_URL
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
+
+/* Define to 1 if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Version number of package */
+#undef VERSION
+
+#define HAVE_SELECT 1
+#define HAVE_SYS_SELECT_H 1