test-clibs: submodules

.gitmodules

@@ -1,3 +1,8 @@
+[submodule "vendor/bzip2"]
+    path = vendor/bzip2
+    url = https://github.com/upx/upx-vendor-bzip2.git
+    branch = upx-vendor
+    shallow = true
 [submodule "vendor/doctest"]
     path = vendor/doctest
     url = https://github.com/upx/upx-vendor-doctest.git
@@ -23,3 +28,8 @@
     url = https://github.com/upx/upx-vendor-zlib.git
     branch = upx-vendor
     shallow = true
+[submodule "vendor/zstd"]
+    path = vendor/zstd
+    url = https://github.com/upx/upx-vendor-zstd.git
+    branch = upx-vendor
+    shallow = true

misc/make/Makefile-extra.mk

@@ -375,7 +375,7 @@ UPX_CMAKE_CONFIG_FLAGS += $(call __add_cmake_config,UPX_CONFIG_EXTRA_COMPILE_OPT
 # check git submodules
 #***********************************************************************
 
-SUBMODULES = doctest lzma-sdk ucl valgrind zlib
+SUBMODULES = bzip2 doctest lzma-sdk ucl valgrind zlib zstd
 
 $(foreach 1,$(SUBMODULES),$(if $(wildcard vendor/$1/[CL]*),,\
   $(error ERROR: missing git submodule '$1'; run 'git submodule update --init')))