Installer fails when trying to apply patch about gitin HOT 10 CLOSED

git submodule -q foreach --recursive git reset -q --hard
git submodule update --init --recursive
if patch --dry-run -N -d /home/claussen/gocode/src/gopkg.in/libgit2/git2go.v27 -p1 < patch/git2go.v27.patch >/dev/null; then \
		patch -d /home/claussen/gocode/src/gopkg.in/libgit2/git2go.v27 -p1 < patch/git2go.v27.patch; \
	fi
patching file script/build-libgit2-static.sh
make -C /home/claussen/gocode/src/gopkg.in/libgit2/git2go.v27 install-static
make[1]: Entering directory `/home/claussen/gocode/src/gopkg.in/libgit2/git2go.v27'
./script/build-libgit2-static.sh
+ VENDORED_PATH=vendor/libgit2
+ cd vendor/libgit2
+ mkdir -p install/lib
+ mkdir -p build
+ cd build
+ cmake -DTHREADSAFE=ON -DBUILD_CLAR=OFF -DBUILD_SHARED_LIBS=OFF -DCMAKE_C_FLAGS=-fPIC -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_INSTALL_PREFIX=../install -DUSE_EXT_HTTP_PARSER=OFF -DUSE_HTTPS=OFF -DUSE_NSEC=OFF -DUSE_SSH=OFF -DCURL=OFF -DUSE_GSSAPI=OFF -DUSE_BUNDLED_ZLIB=ON ..
CMake Error: The source directory "/home/claussen/gocode/src/gopkg.in/libgit2/git2go.v27/vendor/libgit2" does not appear to contain CMakeLists.txt.
Specify --help for usage, or press the help button on the CMake GUI.
make[1]: *** [build-libgit2] Error 1
make[1]: Leaving directory `/home/claussen/gocode/src/gopkg.in/libgit2/git2go.v27'
make: *** [build-libgit2] Error 2

[...]
go install --tags "static" ./...
can't load package: package gopkg.in/libgit2/git2go.v27: /home/claussen/gocode/src/gopkg.in/libgit2/git2go.v27/git_static.go: malformed #cgo argument: -I${SRCDIR}/vendor/libgit2/include
make[1]: *** [install-static] Error 1
make[1]: Leaving directory `/home/claussen/gocode/src/gopkg.in/libgit2/git2go.v27'
make: *** [build-libgit2] Error 2