Install libgit2 to prefix

Author: simoncozens

build.sh

@@ -172,6 +172,7 @@ if [ -n "$LIBGIT2_VERSION" ]; then
                 -DCMAKE_BUILD_TYPE=$BUILD_TYPE
     else
         CMAKE_PREFIX_PATH=$OPENSSL_PREFIX:$LIBSSH2_PREFIX cmake . \
+                -DCMAKE_INSTALL_PREFIX=$PREFIX \
                 -DBUILD_SHARED_LIBS=ON \
                 -DBUILD_CLAR=OFF \
                 -DCMAKE_BUILD_TYPE=$BUILD_TYPE