add cmake and ci

.github/workflows/ci.yml

@@ -0,0 +1,24 @@
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  build-macOS:
+    name: build (macOS)
+    runs-on: macos-latest
+    steps:
+        - uses: actions/checkout@v2
+        - run: |
+            brew install libev
+            cmake --debug-output -Bbuild -DCMAKE_BUILD_TYPE=Release
+            cmake --build build --config Release
+  build-linux:
+    name: build (Linux)
+    runs-on: ubuntu-latest
+    steps:
+        - uses: actions/checkout@v2
+        - run: |
+            sudo apt-get install libev-dev
+            cmake --debug-output -Bbuild -DCMAKE_BUILD_TYPE=Release
+            cmake --build build --config Release

CMakeLists.txt

@@ -0,0 +1,47 @@
+cmake_minimum_required(VERSION 3.15)
+
+project(jsonrcp-c
+    LANGUAGES C
+)
+
+set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake" ${CMAKE_MODULE_PATH})
+
+set(CMAKE_C_STANDARD 11)
+set(SRCS src/jsonrpc-c.c src/cJSON.c)
+set(HDRS include/jsonrpc-c.h include/cJSON.h)
+
+find_package(Libev REQUIRED)
+
+add_library(
+        jsonrpc-c
+        STATIC ${HDRS} ${SRCS}
+)
+target_include_directories(
+        jsonrpc-c
+        PUBLIC
+        $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
+        $<INSTALL_INTERFACE:include>
+        ${LIBEV_INCLUDE_DIRS}
+)
+target_link_libraries(
+        jsonrpc-c
+        PUBLIC
+        ${LIBEV_LIBRARIES}
+)
+
+add_library(
+        jsonrpc-c-shared
+        SHARED ${HDRS} ${SRCS}
+)
+target_include_directories(
+        jsonrpc-c-shared
+        PUBLIC
+        $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
+        $<INSTALL_INTERFACE:include>
+        ${LIBEV_INCLUDE_DIRS}
+)
+target_link_libraries(
+        jsonrpc-c-shared
+        PUBLIC
+        ${LIBEV_LIBRARIES}
+)

cmake/FindLibev.cmake

@@ -0,0 +1,40 @@
+# https://github.com/nghttp2/nghttp2/blob/master/cmake/FindLibev.cmake
+
+# - Try to find libev
+# Once done this will define
+#  LIBEV_FOUND        - System has libev
+#  LIBEV_INCLUDE_DIRS - The libev include directories
+#  LIBEV_LIBRARIES    - The libraries needed to use libev
+
+find_path(LIBEV_INCLUDE_DIR
+        NAMES ev.h
+)
+find_library(LIBEV_LIBRARY
+        NAMES ev
+)
+
+if(LIBEV_INCLUDE_DIR)
+    file(STRINGS "${LIBEV_INCLUDE_DIR}/ev.h"
+            LIBEV_VERSION_MAJOR REGEX "^#define[ \t]+EV_VERSION_MAJOR[ \t]+[0-9]+")
+    file(STRINGS "${LIBEV_INCLUDE_DIR}/ev.h"
+            LIBEV_VERSION_MINOR REGEX "^#define[ \t]+EV_VERSION_MINOR[ \t]+[0-9]+")
+    string(REGEX REPLACE "[^0-9]+" "" LIBEV_VERSION_MAJOR "${LIBEV_VERSION_MAJOR}")
+    string(REGEX REPLACE "[^0-9]+" "" LIBEV_VERSION_MINOR "${LIBEV_VERSION_MINOR}")
+    set(LIBEV_VERSION "${LIBEV_VERSION_MAJOR}.${LIBEV_VERSION_MINOR}")
+    unset(LIBEV_VERSION_MINOR)
+    unset(LIBEV_VERSION_MAJOR)
+endif()
+
+include(FindPackageHandleStandardArgs)
+# handle the QUIETLY and REQUIRED arguments and set LIBEV_FOUND to TRUE
+# if all listed variables are TRUE and the requested version matches.
+find_package_handle_standard_args(Libev REQUIRED_VARS
+        LIBEV_LIBRARY LIBEV_INCLUDE_DIR
+        VERSION_VAR LIBEV_VERSION)
+
+if(LIBEV_FOUND)
+    set(LIBEV_LIBRARIES     ${LIBEV_LIBRARY})
+    set(LIBEV_INCLUDE_DIRS  ${LIBEV_INCLUDE_DIR})
+endif()
+
+mark_as_advanced(LIBEV_INCLUDE_DIR LIBEV_LIBRARY)