Add shared library target to CMake (#60)

Author: saghul

.github/workflows/ci.yml

@@ -48,6 +48,21 @@ jobs:
         if: ${{ matrix.buildType == 'Release' }}
         run: |
           time ./build/run-test262 -m -c test262.conf -a
+  linux-shared:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: build
+        run: |
+          mkdir build
+          cd build
+          cmake -DBUILD_SHARED_LIBS=ON ..
+          cd ..
+          cmake --build build -j$(getconf _NPROCESSORS_ONLN)
+          ldd build/qjs
+      - name: stats
+        run: |
+          ./build/qjs -qd
   linux-asan:
     runs-on: ubuntu-latest
     steps:
@@ -160,6 +175,21 @@ jobs:
           ./build/qjs tests/test_loop.js
           ./build/qjs tests/test_std.js
           ./build/qjs tests/test_worker.js
+  macos-shared:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: build
+        run: |
+          mkdir build
+          cd build
+          cmake -DBUILD_SHARED_LIBS=ON ..
+          cd ..
+          cmake --build build -j$(getconf _NPROCESSORS_ONLN)
+          otool -L build/qjs
+      - name: stats
+        run: |
+          ./build/qjs -qd
   macos-asan:
     runs-on: macos-latest
     steps:
@@ -248,3 +278,31 @@ jobs:
         ./build/qjs tests/test_builtin.js
         ./build/qjs tests/test_loop.js
         ./build/qjs tests/test_std.js
+  windows-mingw-shared:
+    runs-on: windows-latest
+    defaults:
+      run:
+        shell: msys2 {0}
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup MSYS2
+        uses: msys2/setup-msys2@v2
+        with:
+          install: >-
+            git
+            make
+          pacboy: >-
+            cmake:p
+            ninja:p
+            toolchain:p
+      - name: build
+        run: |
+          mkdir build
+          cd build
+          cmake -DBUILD_SHARED_LIBS=ON ..
+          cd ..
+          cmake --build build -j$(getconf _NPROCESSORS_ONLN)
+          ldd build/qjs
+      - name: stats
+        run: |
+          ./build/qjs -qd

CMakeLists.txt

@@ -3,10 +3,8 @@ cmake_minimum_required(VERSION 3.9)
 project(quickjs LANGUAGES C)
 
 # TODO:
-#  - LTO
 #  - Support cross-compilation
 #  - Install targets
-#  - Shared library target
 
 set(CMAKE_C_STANDARD_REQUIRED ON)
 set(CMAKE_C_EXTENSIONS ON)
@@ -52,6 +50,11 @@ else()
     add_compile_options(-g)
 endif()
 
+option(BUILD_SHARED_LIBS "Build a shared library" OFF)
+if(BUILD_SHARED_LIBS)
+    message(STATUS "Building a shared library")
+endif()
+
 option(CONFIG_ASAN "Enable AddressSanitizer (ASan)" OFF)
 option(CONFIG_MSAN "Enable MemorySanitizer (MSan)" OFF)
 option(CONFIG_UBSAN "Enable UndefinedBehaviorSanitizer (UBSan)" OFF)
@@ -97,8 +100,6 @@ add_link_options(
 )
 endif()
 
-set(CMAKE_VERBOSE_MAKEFILE ON CACHE BOOL "ON")
-
 
 # QuickJS library
 #
@@ -113,7 +114,7 @@ set(qjs_sources
 
 list(APPEND qjs_defines _GNU_SOURCE)
 
-add_library(qjs STATIC ${qjs_sources})
+add_library(qjs ${qjs_sources})
 target_compile_definitions(qjs PRIVATE ${qjs_defines})
 if (CMAKE_BUILD_TYPE MATCHES Debug)
     target_compile_definitions(qjs PRIVATE