feat: use pkg-config to find Wasmer libs

Requires wasmerio/wasmer#2101

.github/workflows/lint.yaml

@@ -16,6 +16,11 @@ jobs:
         uses: shivammathur/setup-php@v2
         with:
           php-version: 7.4
+      - name: Install Wasmer
+        run: |
+          curl https://get.wasmer.io -sSfL | sh
+          sudo mkdir -p /usr/local/lib/pkgconfig
+          wasmer config --pkg-config | sudo tee /usr/local/lib/pkgconfig/wasmer.pc
       - name: Checkout code
         uses: actions/checkout@v2
       - name: Configure

.github/workflows/main.yaml

@@ -60,6 +60,11 @@ jobs:
         uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php }}
+      - name: Install Wasmer
+        run: |
+          curl https://get.wasmer.io -sSfL | sh
+          sudo mkdir -p /usr/local/lib/pkgconfig
+          wasmer config --pkg-config | sudo tee /usr/local/lib/pkgconfig/wasmer.pc
       - name: Checkout code
         uses: actions/checkout@v2
       - name: Configure

CMakeLists.txt

@@ -15,12 +15,20 @@ execute_process (
 )
 string(REGEX REPLACE "\n$" "" PHP_SOURCE "${PHP_SOURCE}")
 
-message("Using source directory: ${PHP_SOURCE}")
+execute_process (
+        COMMAND wasmer config --includedir
+        OUTPUT_VARIABLE WASMER_SOURCE
+)
+string(REGEX REPLACE "\n$" "" WASMER_SOURCE "${WASMER_SOURCE}")
+
+message("Using PHP include directory: ${PHP_SOURCE}")
+message("Using Wasmer include directory: ${WASMER_SOURCE}")
 
 include_directories(${PHP_SOURCE})
 include_directories(${PHP_SOURCE}/main)
 include_directories(${PHP_SOURCE}/Zend)
 include_directories(${PHP_SOURCE}/TSRM)
+include_directories(${WASMER_SOURCE})
 include_directories(${PROJECT_SOURCE_DIR})
 include_directories(${PROJECT_SOURCE_DIR}/include)
 

config.m4

@@ -1,13 +1,15 @@
 dnl config.m4 for extension Wasmer
 
-PHP_ARG_ENABLE(wasmer, whether to enable Wasmer support,
-    AS_HELP_STRING(--enable-wasmer, Enable Wasmer support))
+PHP_ARG_WITH(wasmer, for Wasmer support,
+    AS_HELP_STRING(--with-wasmer, Include Wasmer support))
 
 if test "$PHP_WASMER" != "no"; then
-    AC_DEFINE(HAVE_WASMER, 1, [ Have Wasmer support ])
+    PKG_CHECK_MODULES([LIBWASMER], [wasmer >= 1.0.2])
+    PKG_CHECK_MODULES([LIBWASMER], [wasmer < 2.0.0])
+    PHP_EVAL_INCLINE($LIBWASMER_CFLAGS)
+    PHP_EVAL_LIBLINE($LIBWASMER_LIBS, WASMER_SHARED_LIBADD)
 
     PHP_SUBST(WASMER_SHARED_LIBADD)
-    PHP_ADD_LIBRARY_WITH_PATH(wasmer, ./lib, WASMER_SHARED_LIBADD)
 
     WASMER_API="src/api/config.c src/api/engine.c src/api/store.c src/api/wasmer.c src/api/wat.c"
     WASMER_API_OBJECTS="src/api/objects/extern.c src/api/objects/foreign.c src/api/objects/func.c src/api/objects/frame.c src/api/objects/global.c src/api/objects/instance.c src/api/objects/memory.c src/api/objects/module.c src/api/objects/table.c src/api/objects/trap.c src/api/objects/val.c"