Question

HI,

I've installed the GNU version of diff into /usr/local/bin (which ist the current PATH).

diff (GNU diffutils) 2.8.1 Copyright (C) 2002 Free Software Foundation, Inc.

Anyway, I am getting the following error message: Warning: 'diff' program was found on the PATH but is not GNU diff - this may cause problems. diff: illegal option -- version usage: diff [-bitw] [-c | -e | -f | -h | -n | -u] file1 file2 diff [-bitw] [-C number | -U number] file1 file2 diff [-bitw] [-D string] file1 file2 diff [-bitw] [-c | -e | -f | -h | -n | -u] [-l] [-r] [-s] [-S name] directory1 directory2

Has anyone an idea for that problem? Thanks

Environment

-- AlexRaabe - 21 Jul 2006

Answer

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This looks like TWiki is picking another version of diff and not the GNU one which you installed.

Probable reason: During initialisation, TWiki resets the PATH to whatever is configured as $TWiki::cfg{SafeEnvPath}, which defaults to '/bin:/usr/bin'.

So you'd have to choose:

• Either prepend /usr/local/bin to your $TWiki::cfg{SafeEnvPath} (e.g. with TWiki's bin/configure),
• or install GNU diff in the paths where TWiki looks for it,
• or just check whether your /bin/diff (or /usr/bin/diff) just works, though it does not understand --version.

-- HaraldJoerg - 21 Jul 2006

FYI, TWiki.org also runs on Solaris. We get the same error message, but diff and rcs just work fine.

-- PeterThoeny - 21 Jul 2006

That's the case in my installation as well. Thanks for the help!

-- AlexRaabe - 25 Jul 2006