depends: set several missing build tags

contrib/depends/toolchain.cmake.in

@@ -136,11 +136,21 @@ endif()
 if(ARCHITECTURE STREQUAL "i686")
   SET(ARCH_ID "i386")
   if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+    set(BUILD_TAG "linux-x86")
     SET(LINUX_32 ON)
+  elseif(CMAKE_SYSTEM_NAME STREQUAL "Windows")
+    set(BUILD_TAG "win-x32")
   endif()
 endif()
 
 if(ARCHITECTURE STREQUAL "x86_64")
+  if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+    set(BUILD_TAG "linux-x64")
+  elseif(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
+    set(BUILD_TAG "freebsd-x64")
+  elseif(CMAKE_SYSTEM_NAME STREQUAL "Windows")
+    set(BUILD_TAG "win-x64")
+  endif()
   SET(ARCH_ID "x86_64")
 endif()