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author | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2013-06-29 19:19:47 +0000 |
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committer | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2013-06-29 19:19:47 +0000 |
commit | 380588e187c12000ac8082cb2a20a905d3c422a5 (patch) | |
tree | 296b1324b7a9360646a34ae836b8eb486b7feede /editor/ppmquant | |
parent | f8b633c2be1231a0c194214271caa456dc669ecb (diff) | |
download | netpbm-mirror-380588e187c12000ac8082cb2a20a905d3c422a5.tar.gz netpbm-mirror-380588e187c12000ac8082cb2a20a905d3c422a5.tar.xz netpbm-mirror-380588e187c12000ac8082cb2a20a905d3c422a5.zip |
Release 10.63.00
git-svn-id: http://svn.code.sf.net/p/netpbm/code/advanced@1968 9d0c8265-081b-0410-96cb-a4ca84ce46f8
Diffstat (limited to 'editor/ppmquant')
-rwxr-xr-x | editor/ppmquant | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/editor/ppmquant b/editor/ppmquant index 08f4c187..57963982 100755 --- a/editor/ppmquant +++ b/editor/ppmquant @@ -1,4 +1,28 @@ -#!/usr/bin/perl -w +#!/bin/sh + +############################################################################## +# This is essentially a Perl program. We exec the Perl interpreter specifying +# this same file as the Perl program and use the -x option to cause the Perl +# interpreter to skip down to the Perl code. The reason we do this instead of +# just making /usr/bin/perl the script interpreter (instead of /bin/sh) is +# that the user may have multiple Perl interpreters and the one he wants to +# use is properly located in the PATH. The user's choice of Perl interpreter +# may be crucial, such as when the user also has a PERL5LIB environment +# variable and it selects modules that work with only a certain main +# interpreter program. +# +# An alternative some people use is to have /usr/bin/env as the script +# interpreter. We don't do that because we think the existence and +# compatibility of /bin/sh is more reliable. +# +# Note that we aren't concerned about efficiency because the user who needs +# high efficiency can use directly the programs that this program invokes. +# +############################################################################## + +exec perl -w -x -S -- "$0" "$@" + +#!/usr/bin/perl ############################################################################## # This is nothing but a compatibility interface for Pnmquant. # An old program coded to call Ppmquant will continue working because |