PHPC-1520: Define KMS_MSG_STATIC for bundled libmongocrypt

Author: jmikola

config.m4

@@ -285,7 +285,7 @@ if test "$PHP_MONGODB" != "no"; then
   if test "$PHP_MONGODB_SYSTEM_LIBS" = "no"; then
     PHP_MONGODB_BUNDLED_CFLAGS="$STD_CFLAGS -DBSON_COMPILATION -DMONGOC_COMPILATION"
     dnl TODO: MONGOCRYPT-219 makes the -std argument obsolete
-    PHP_MONGODB_LIBMONGOCRYPT_CFLAGS="$PHP_MONGODB_BUNDLED_CFLAGS -std=gnu99"
+    PHP_MONGODB_LIBMONGOCRYPT_CFLAGS="$PHP_MONGODB_BUNDLED_CFLAGS -DKMS_MSG_STATIC -std=gnu99"
 
     dnl M4 doesn't know if we're building statically or as a shared module, so
     dnl attempt to include both paths while ignoring errors. If neither path

config.w32

@@ -232,7 +232,7 @@ if (PHP_MONGODB != "no") {
     ADD_FLAG("CFLAGS_MONGODB", "/I" + configure_module_dirname + "/src/libmongocrypt/src");
     ADD_FLAG("CFLAGS_MONGODB", "/I" + configure_module_dirname + "/src/libmongocrypt/kms-message/src");
     ADD_FLAG("CFLAGS_MONGODB", "/I" + configure_module_dirname + "/src/libmongocrypt-compat");
-    ADD_FLAG("CFLAGS_MONGODB", "/D KMS_MESSAGE_ENABLE_CRYPTO=1 /D KMS_MESSAGE_ENABLE_CRYPTO_LIBCRYPTO=1");
+    ADD_FLAG("CFLAGS_MONGODB", "/D KMS_MSG_STATIC=1 /D KMS_MESSAGE_ENABLE_CRYPTO=1 /D KMS_MESSAGE_ENABLE_CRYPTO_LIBCRYPTO=1");
 
     var mongocrypt_opts = {
       MONGOCRYPT_ENABLE_TRACE: 1,