40 lines
1 KiB
Text
40 lines
1 KiB
Text
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#serial 1
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dnl From Jim Meyering.
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dnl Find a new-enough version of Perl.
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dnl
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AC_DEFUN(jm_PERL,
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[
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dnl FIXME: don't hard-code 5.003
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dnl FIXME: should we cache the result?
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AC_MSG_CHECKING([for perl5.003 or newer])
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if test "${PERL+set}" = set; then
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# `PERL' is set in the user's environment.
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candidate_perl_names="$PERL"
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perl_specified=yes
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else
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candidate_perl_names='perl perl5'
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perl_specified=no
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fi
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found=no
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AC_SUBST(PERL)
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PERL="$missing_dir/missing perl"
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for perl in $candidate_perl_names; do
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# Run test in a subshell; some versions of sh will print an error if
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# an executable is not found, even if stderr is redirected.
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if ( $perl -e 'require 5.003' ) > /dev/null 2>&1; then
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PERL=$perl
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found=yes
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break
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fi
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done
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AC_MSG_RESULT($found)
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test $found = no && AC_MSG_WARN([
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*** You don't seem to have perl5.003 or newer installed.
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*** Because of that, you may be unable to regenerate certain files
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*** if you modify the sources from which they are derived.] )
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])
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