Add a depends description for googletest.

depends/packages/googletest.mk

@@ -0,0 +1,15 @@
+package=googletest
+$(package)_version=1.7.0
+$(package)_download_path=https://github.com/google/$(package)/archive/
+$(package)_file_name=$(package)-$($(package)_version).tar.gz
+$(package)_download_file=release-$($(package)_version).tar.gz
+$(package)_sha256_hash=f73a6546fdf9fce9ff93a5015e0333a8af3062a152a9ad6bcb772c96687016cc
+
+define $(package)_build_cmds
+  $(MAKE) -C make CXXFLAGS=-fPIC gtest.a
+endef
+
+define $(package)_stage_cmds
+  install -D ./make/gtest.a $($(package)_staging_dir)$(host_prefix)/lib/libgtest.a && \
+  cp -a ./include $($(package)_staging_dir)$(host_prefix)/include
+endef

depends/packages/packages.mk

@@ -1,5 +1,5 @@
 zerocash_packages := libsnark crypto++ libgmp libsodium
-packages:=boost openssl $(zerocash_packages)
+packages := boost openssl $(zerocash_packages) googletest
 native_packages := native_ccache native_comparisontool
 
 qt_native_packages = native_protobuf