Use basename only when checking for gfortran

[frankwillmore]

In attempting to build on our system, we identified fc here as containing the entire path to gfortran, which caused the preprocessor directive to be set erroneously as -fpp instead of cpp . Using the basename solved the issue in our case and would be expected to deliver the correct behavior generally.

[frankwillmore]

@geohang

[codecov[bot]]

Codecov Report

Merging #117 (90b11ed) into master (8e7ece3) will decrease coverage by 48.251%. The diff coverage is 0.000%.

:exclamation: Current head 90b11ed differs from pull request most recent head 25c7eba. Consider uploading reports for the commit 25c7eba to get more accurate results

@@              Coverage Diff               @@
##            master      #117        +/-   ##
==============================================
- Coverage   62.355%   14.103%   -48.252%     
==============================================
  Files           18        17         -1     
  Lines         4492      4481        -11     
==============================================
- Hits          2801       632      -2169     
- Misses        1691      3849      +2158     

Impacted Files	Coverage Δ
pymake/pymake_base.py	2.702% <0.000%> (-84.042%)	:arrow_down:
pymake/utils/_usgs_src_update.py	6.353% <0.000%> (-79.006%)	:arrow_down:
pymake/utils/_compiler_switches.py	3.493% <0.000%> (-77.075%)	:arrow_down:
pymake/pymake_build_apps.py	7.272% <0.000%> (-73.637%)	:arrow_down:
pymake/utils/_Popen_wrapper.py	17.500% <0.000%> (-72.500%)	:arrow_down:
pymake/utils/_dag.py	9.729% <0.000%> (-71.892%)	:arrow_down:
pymake/utils/_compiler_language_files.py	7.086% <0.000%> (-67.717%)	:arrow_down:
pymake/plot/dependency_graphs.py	11.688% <0.000%> (-57.143%)	:arrow_down:
pymake/pymake.py	24.074% <0.000%> (-51.852%)	:arrow_down:
... and 5 more