[Bug preprocessor/126402] New: multiline macros

"uecker at gcc dot gnu.org via Gcc-bugs" <[email protected]> Sat, 25 Jul 2026 12:04:27 +0000

Newsgroups	gmane.comp.gcc.bugs
Message-ID	<[email protected]/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126402

            Bug ID: 126402
           Summary: multiline macros
           Product: gcc
           Version: 17.0
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: preprocessor
          Assignee: unassigned at gcc dot gnu.org
          Reporter: uecker at gcc dot gnu.org
  Target Milestone: ---

A commonly requested features are multi-line macros.

A recent user request:
https://gcc.gnu.org/pipermail/gcc/2026-July/248595.html

Very old patch:
https://www.cs.cornell.edu/andru/mlm.html

WG14 proposal.
https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3531.txt