On Fri, Mar 25, 2005 at 11:08:11AM +1100, Andrew Savige wrote: > Running 'perl test.pl', where test.pl is: > > print "exe_name='$^X'\n"; > > produces, on Windows and Linux at least, the absolute path of the > perl executable, for example: > > exe_name='C:\Perl\bin\perl.exe' > exe_name='/usr/bin/perl' > > With Pugs however, running: > > print "exe_name='$?EXECUTABLE_NAME'\n"; > > produces just the bald: > > exe_name='pugs' > > which is not useful when running pugs programs during make test. > I worked around this for now, by using "./pugs ..." for Unix and > "pugs ..." for Windows (where cwd comes first on PATH). > > $^X is defined as "The name used to execute the current copy of Perl". > In addition to that, there is C's argv[0] (which may or may not match > $^X) and the file name of the perl/pugs executable (which may or may > not match $^X). Not that I have a use for the last two, but I don't > a way to get them from perl.
I know for Linux (and at least FreeBSD and Solaris) there's some code in perl 5.8.0 and later to attempt to find the absolute path of the perl executable to populate $^X with. Offhand I don't know about Windows. This may explain why you're seeing full pathnames for Perl 5, but only the leafname in pugs - pugs is using whatever the OS passed in as argv[0] Nicholas Clark
