Re: BUG #19095: Test if function exit() is used fail when linked static

Hi Daniel, Michael,Nazir

Thanks for the feedback.

For v4 I will implement the approach you outlined:

  -Move the nm detection to the top-level build:
      - Add find_program('nm') in the root meson.build
      - Add PGAC_CHECK_PROG(NM_PROG, nm) in configure.ac
    and export the result down into src/interfaces/libpq for use by both
    Meson and Makefile builds.

  -Pass the resolved nm path into libpq-exit-check via a --nm argument,
    removing the internal which nm lookup from the script.

  -Expand the platform skip logic in the script to include Windows in
    addition to Solaris, and close the filehandle as suggested.

  -Replace the comments in Makefile and meson.build with the unified
    explanatory block, and keep all platform details inside the script.

I will post v4 with these changes shortly.

Regards,
Vasuki