Unable to install rugged 0.25.1 on windows 10

Hi. When attempting to install 0.25.1 as mentioned above, this is the result:

gem install rugged
Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
ERROR:  Error installing rugged:
        ERROR: Failed to build gem native extension.

    current directory: c:/Ruby233/lib/ruby/gems/2.3.0/gems/rugged-0.25.1/ext/rugged
c:/Ruby233/bin/ruby.exe -r ./siteconf20170118-10960-129ea6f.rb extconf.rb
checking for gmake... no
checking for make... yes
checking for cmake... yes
 -- cmake .. -DBUILD_CLAR=OFF -DTHREADSAFE=ON -DBUILD_SHARED_LIBS=OFF -DCMAKE_C_FLAGS=-fPIC -DCMAKE_BUILD_TYPE=RelWithDebInfo -G "MSYS Makefiles"
 -- C:\DevKit\bin/make.exe
checking for main() in -lgit2... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
        --with-opt-dir
        --without-opt-dir
        --with-opt-include
        --without-opt-include=${opt-dir}/include
        --with-opt-lib
        --without-opt-lib=${opt-dir}/lib
        --with-make-prog
        --without-make-prog
        --srcdir=.
        --curdir
        --ruby=c:/Ruby233/bin/$(RUBY_BASE_NAME)
        --use-system-libraries
        --with-git2-dir
        --without-git2-dir
        --with-git2-include
        --without-git2-include=${git2-dir}/include
        --with-git2-lib
        --without-git2-lib=${git2-dir}/lib
        --with-git2lib
        --without-git2lib
c:/Ruby233/lib/ruby/2.3.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
        from c:/Ruby233/lib/ruby/2.3.0/mkmf.rb:541:in `try_link0'
        from c:/Ruby233/lib/ruby/2.3.0/mkmf.rb:556:in `try_link'
        from c:/Ruby233/lib/ruby/2.3.0/mkmf.rb:765:in `try_func'
        from c:/Ruby233/lib/ruby/2.3.0/mkmf.rb:997:in `block in have_library'
        from c:/Ruby233/lib/ruby/2.3.0/mkmf.rb:942:in `block in checking_for'
        from c:/Ruby233/lib/ruby/2.3.0/mkmf.rb:350:in `block (2 levels) in postpone'
        from c:/Ruby233/lib/ruby/2.3.0/mkmf.rb:320:in `open'
        from c:/Ruby233/lib/ruby/2.3.0/mkmf.rb:350:in `block in postpone'
        from c:/Ruby233/lib/ruby/2.3.0/mkmf.rb:320:in `open'
        from c:/Ruby233/lib/ruby/2.3.0/mkmf.rb:346:in `postpone'
        from c:/Ruby233/lib/ruby/2.3.0/mkmf.rb:941:in `checking_for'
        from c:/Ruby233/lib/ruby/2.3.0/mkmf.rb:992:in `have_library'
        from extconf.rb:108:in `<main>'

To see why this extension failed to compile, please check the mkmf.log which can be found here:

  c:/Ruby233/lib/ruby/gems/2.3.0/extensions/x86-mingw32/2.3.0/rugged-0.25.1/mkmf.log

extconf failed, exit code 1

Gem files will remain installed in c:/Ruby233/lib/ruby/gems/2.3.0/gems/rugged-0.25.1 for inspection.
Results logged to c:/Ruby233/lib/ruby/gems/2.3.0/extensions/x86-mingw32/2.3.0/rugged-0.25.1/gem_make.out

I notice in mkmf.log that it manages to build git2, but then after that, ends up like this:

"gcc -o conftest.exe -Ic:/Ruby233/include/ruby-2.3.0/i386-mingw32 -Ic:/Ruby233/include/ruby-2.3.0/ruby/backward -Ic:/Ruby233/include/ruby-2.3.0 -I. -Ic:/Ruby233/lib/ruby/gems/2.3.0/gems/rugged-0.25.1/ext/rugged/../../vendor/libgit2/include -DFD_SETSIZE=2048 -D_WIN32_WINNT=0x0501 -D__MINGW_USE_VC2005_COMPAT -D_FILE_OFFSET_BITS=64   -O3 -fno-omit-frame-pointer -fno-fast-math -g -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat  -g -O3 -Wall -Wno-comment conftest.c  -Lc:/Ruby233/lib/ruby/gems/2.3.0/gems/rugged-0.25.1/ext/rugged/../../vendor/libgit2/build -L. -Lc:/Ruby233/lib -L.  -Lc:/Ruby233/lib/ruby/gems/2.3.0/gems/rugged-0.25.1/vendor/libgit2/build/deps/winhttp     -lmsvcrt-ruby230  -lshell32 -lws2_32 -liphlpapi -limagehlp -lshlwapi   -lwinhttp -lcrypt32 -lrpcrt4 -lole32 -lz"
c:/devkit/mingw/bin/../lib/gcc/i686-w64-mingw32/4.7.2/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lz
collect2.exe: error: ld returned 1 exit status
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <winsock2.h>
4: #include <windows.h>
5: int main(int argc, char **argv)
6: {
7:   return 0;
8: }
/* end */

Does anyone know why it can't find -lz, have any suggestions to troubleshoot further, or know how this might be fixed? I'm happy to provide more information about my setup if necessary.

Start with extconf.rb:108 and the mkmf.log entry showing the linker failure, then review gem_make.out for the complete installation context. Reproduce the rugged 0.25.1 installation on Windows 10 with the reported Ruby and DevKit setup; done means the native extension builds without the missing -lz error.