Building on Windows with Visual Studio 2015

• Get the required dependencies from http://windows.php.net/downloads/php-sdk/deps/vc14/ and http://windows.php.net/downloads/pecl/deps/, respectively. Choose the x86 or x64 packages depending on your needs.

• freetype

• libiconv
• libjpeg
• libpng
• libtiff
• libwebp
• libxpm

• zlib

• Unpack all dependency packages into the same folder.

• Open the VS2015 x86 or x64 Native Tools Command Prompt.

• Set the environment variable WITH_DEVEL to the path where you have unpacked the dependencies. WITH_DEVEL defaults to ..\deps.

• If you want a debug build, do

set DEBUG=1

• cd into the libgd source folder.

• To build the libraries, do:

nmake /f windows\Makefile.vc

• To build and run the tests, do:

nmake /f windows\Makefile.vc check

• To build the executable programs, do:

nmake /f windows\Makefile.vc build_progs

• After a successful build, you find the libraries and test executables in ..\gdbuild. You can change the build folder by setting the environment variable WITH_BUILD to the desired path.

• Before rebuilding, you may have to run:

nmake /f windows\Makefile.vc clean