Uses $Config{cpp} instead of $Config{cpprun}

[kentfredric]

This is just a follow up after hitting this issue on Devel-NYTProf

Perl/perl5#17948
timbunce/devel-nytprof#139

When Perl is configured with -Dcpp=$GCC -E, the resulting $Config{cpp} is just $GCC, which is very much probably not what you want.

You probably want $Config{cpprun} which contains the arguments required for $GCC to function as a C PreProcessor.

FFI-TinyCC/lib/FFI/TinyCC.pm

Line 318 in e922eec

my @lines = `$Config{cpp} -v $filename 2>&1`;

[plicease]

$Config{cpprun} does seem to be more correct with clang as well:

✅ starscream% perl -V:cpp
cpp='cpp';
✅ starscream% perl -V:cpprun
cpprun='clang  -E';

(/usr/bin/cpp being the Gnu C preprocessor on my Debian system)

[plicease]

Thanks for the suggestion. Updated and released as 0.30.