The simple names in default_exclude_exts do not match extension
paths under gems.
Extract each gem name from the gemspec file at the top level of each
gem directory. For example, if ext is syslog-0.1.2/ext/syslog/,
find out syslog-0.1.2/syslog.gemspec and take the base name syslog
without the suffix .gemspec.
Match
--with/--withoutoptions against gem namesThe simple names in
default_exclude_extsdo not match extensionpaths under gems.
Extract each gem name from the gemspec file at the top level of each
gem directory. For example, if
extissyslog-0.1.2/ext/syslog/,find out
syslog-0.1.2/syslog.gemspecand take the base namesyslogwithout the suffix
.gemspec.