icu

Releases are approximately six-monthly to annually. In addition to the general steps, the Windows solution and project files require creating for the supported versions of Visual Studio.

• delete win-vc*.diff files under packages/icu/patches

For each Visual Studio version:

• unpack the new ICU sources
• make a copy of the sources (icu-nn.orig)
• make a second copy of the source (icu-nn.vcmm)
• start the Visual Studio application
• open icu-nn.vcmm/source/allinone/allinone.sln, and allow Visual Studio to upgrade the projects to the current version
• save the solution (you must Save As to overwrite the existing solution; Save is insufficient)
• create a diff with diff -urN icu-nn.orig icu-nn.vcmm > win-vcmm.diff
• copy the diff to packages/icu/patches/
• ensure the patch is included in the corresponding series-vcmm file