make -f win32.mak release This command failed with: run idgen Error: 'run' not found It should be: dmd -run idgen The cause is HOST_DC variable was added, but it is empty. If environment variable HOST_DC is defined, we can make.
https://github.com/D-Programming-Language/dmd/pull/4492
This was intentional, not a regression. You need to define HOST_DC in your environment or pass it to the make invocation.
Commits pushed to master at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/c2b9108d01173d0a8414a99f895675ccce71a66a fix Issue 14279 - [REG:git-head]Failed to make dmd because of idgen : HOST_DC missing https://github.com/D-Programming-Language/dmd/commit/339cd188c7074108f4d51ab84e07092564af28ba Merge pull request #4492 from WalterBright/fix14279 fix Issue 14279 - [REG:git-head]Failed to make dmd because of idgen : HO...
Commits pushed to stable at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/c2b9108d01173d0a8414a99f895675ccce71a66a fix Issue 14279 - [REG:git-head]Failed to make dmd because of idgen : HOST_DC missing https://github.com/D-Programming-Language/dmd/commit/339cd188c7074108f4d51ab84e07092564af28ba Merge pull request #4492 from WalterBright/fix14279