Hi, On 2025-05-12 23:14:59 -0400, J. Javier Maestro wrote: > The pgflex wrapper runs flex with an explicit environment, so it doesn't > inherit environment variables from the parent process. However, flex can > use the M4 env variable and/or the PATH (via execvp) to find the m4 macro > processor.
> Thus, since flex honors the M4 env variable, it should be propagated to the > subprocess environment if it's set in the parent environment. This patch > fixes it. I think it probably was not intentional to fully specify the environment, rather than just *adding* FLEX_TMP_DIR to the caller's environment. Bilal, I think you wrote this originally, do you recall? It seems like an issue beyond just M4... Greetings, Andres Freund
