Tighten up the build

Build as release, and there is no need to install the library, we know
where the files are.

script/build-libgit2-static.sh

@@ -4,13 +4,15 @@ set -ex
 
 VENDORED_PATH=vendor/libgit2
 
-cd $VENDORED_PATH
-
+cd $VENDORED_PATH &&
+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 \
-      .
+      .. &&
 
-make install
+cmake --build .

script/with-static.sh

@@ -2,12 +2,10 @@
 
 set -ex
 
-export INSTALL_LOCATION=$PWD/vendor/install
-export PKG_CONFIG_PATH=$INSTALL_LOCATION/lib/pkgconfig
+export BUILD="$PWD/vendor/libgit2/build"
+export PCFILE="$BUILD/libgit2.pc"
 
-export PCFILE="$PWD/vendor/libgit2/libgit2.pc"
-
-export CGO_LDFLAGS="$PWD/vendor/libgit2/libgit2.a $(pkg-config --static --libs $PCFILE)"
-export CGO_CFLAGS="$(pkg-config --static --cflags $PCFILE)"
+export CGO_LDFLAGS="$BUILD/libgit2.a -L$BUILD $(pkg-config --static --libs $PCFILE)"
+export CGO_CFLAGS="-I$PWD/vendor/libgit2/include"
 
 $@