Build of abps@3.4.0 fails w/ gcc@14.2.0 → sda broken.

sda → abps → fetk seems to have defs of main that use implicit int return type of main, which is now an error in gcc@14.2.0:

/tmp/spack/spack-stage/spack-stage-apbs-3.4.0-gwi3wprujwm3g3fwcrmmu5ibihaosmdm/spack-build-gwi3wpr/_deps/fetk-src/punc/src/vf2c/main.c:115:1: error: return type defaults to 'int' [-Wimplicit-int]
  115 | main(int argc, char **argv)

(Looks like abps@3.4.1, which updates fetk to 1.9.3 would also have this problem: https://github.com/Electrostatics/FETK/blob/2fbfc814968109cef03ca9b5426a0dd854d0b5f6/punc/src/vf2c/main.c#L115)