more changes for freebsd support

depends/packages/googletest.mk

@@ -8,6 +8,7 @@ $(package)_sha256_hash=58a6f4277ca2bc8565222b3bbd58a177609e9c488e8a72649359ba514
 define $(package)_set_vars
 $(package)_cxxflags+=-std=c++11
 $(package)_cxxflags_linux=-fPIC
+$(package)_cxxflags_freebsd=-fPIC
 endef
 
 ifeq ($(build_os),darwin)

depends/packages/libevent.mk

@@ -16,6 +16,7 @@ define $(package)_set_vars
   $(package)_config_opts=--disable-shared --disable-openssl --disable-libevent-regress
   $(package)_config_opts_release=--disable-debug-mode
   $(package)_config_opts_linux=--with-pic
+  $(package)_config_opts_freebsd=--with-pic
 endef
 
 define $(package)_config_cmds

depends/packages/rust.mk

@@ -7,6 +7,8 @@ $(package)_file_name_darwin=rust-$($(package)_version)-x86_64-apple-darwin.tar.g
 $(package)_sha256_hash_darwin=f0dfba507192f9b5c330b5984ba71d57d434475f3d62bd44a39201e36fa76304
 $(package)_file_name_mingw32=rust-$($(package)_version)-x86_64-pc-windows-gnu.tar.gz
 $(package)_sha256_hash_mingw32=358e1435347c67dbf33aa9cad6fe501a833d6633ed5d5aa1863d5dffa0349be9
+$(package)_file_name_freebsd=rust-$($(package)_version)-x86_64-unknown-freebsd.tar.gz
+$(package)_sha256_hash_freebsd=20d062493d01f1816014fe9dbe883bda06f1828a6ddbfb7ee5e4f1df20eb1c3a
 
 # Mapping from GCC canonical hosts to Rust targets
 # If a mapping is not present, we assume they are identical, unless $host_os is