Bug 23207 – dmd hangs compiling druntime/src/core/stdc/errno.c

The command: dmd druntime/src/core/stdc/errno.c -I -v -c hangs.

It's hanging here: 0x000000000084dc28 in dmd.lexer.Lexer.nextDefineLine() (this=0x7fffffffddd0) at src/dmd/lexer.d:177 177 } (gdb) bt #0 0x000000000084dc28 in dmd.lexer.Lexer.nextDefineLine() (this=0x7fffffffddd0) at src/dmd/lexer.d:177 #1 0x00000000007f13ef in dmd.cparse() (this=0x7fffffffddd0) at src/dmd/cparse.d:5241 #2 0x00000000007e6609 in dmd.cparse() (this=0x7fffffffddd0) at src/dmd/cparse.d:116 #3 0x00000000006a078e in dmd.dmodule.Module() (this=0x7ffff7edf5b0) at src/dmd/dmodule.d:984 #4 0x000000000069ea85 in Module::parse() (this=0x7ffff7edf5b0) at src/dmd/dmodule.d:701 #5 0x00000000006279d8 in dmd.mars.tryMain() (params=..., argv=0x7fffffffeb38, argc=4) at src/dmd/mars.d:360 #6 0x0000000000629b5e in D main (_param_0=...) at src/dmd/mars.d:962

Just including stdio.h hangs on my system. test.c: ``` #include <stdio.h> ```

@WalterBright created dlang/dmd pull request #14241 "fix Issue 23207 - dmd hangs compiling druntime/src/core/stdc/errno.c" fixing this issue: - fix Issue 23207 - dmd hangs compiling druntime/src/core/stdc/errno.c https://github.com/dlang/dmd/pull/14241

dlang/dmd pull request #14241 "fix Issue 23207 - dmd hangs compiling druntime/src/core/stdc/errno.c" was merged into master: - 1464e30a4da3a39c6b9f3c6669aa8a051fed13ec by Walter Bright: fix Issue 23207 - dmd hangs compiling druntime/src/core/stdc/errno.c https://github.com/dlang/dmd/pull/14241