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Make configure check the version of Perl we're building with, and reject

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versions < 5.8.  Also, if there's no Perl, emit a warning informing the
user that he won't be able to build from a CVS pull.  This is exactly the
same treatment we give Bison and Perl, and for the same reasons.
This commit is contained in:
Tom Lane
2010-01-07 01:41:11 +00:00
parent d15cb38dec
commit 55233c3382
2 changed files with 62 additions and 3 deletions
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29
config/perl.m4
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@ -1,10 +1,35 @@
# $PostgreSQL: pgsql/config/perl.m4,v 1.5 2009/09/08 18:15:55 tgl Exp $
# $PostgreSQL: pgsql/config/perl.m4,v 1.6 2010/01/07 01:41:11 tgl Exp $
# PGAC_PATH_PERL
# --------------
AC_DEFUN([PGAC_PATH_PERL],
[AC_PATH_PROG(PERL, perl)])
[# Let the user override the search
if test -z "$PERL"; then
AC_PATH_PROG(PERL, perl)
fi
if test "$PERL"; then
pgac_perl_version=`$PERL -v 2>/dev/null | sed -n ['s/This is perl, v[a-z ]*//p'] | sed ['s/ .*//']`
AC_MSG_NOTICE([using perl $pgac_perl_version])
if echo "$pgac_perl_version" | sed ['s/[.a-z_]/ /g'] | \
$AWK '{ if ([$]1 = 5 && [$]2 >= 8) exit 1; else exit 0;}'
then
AC_MSG_WARN([
*** The installed version of Perl, $PERL, is too old to use with PostgreSQL.
*** Perl version 5.8 or later is required, but this is $pgac_perl_version.])
PERL=""
fi
fi
if test -z "$PERL"; then
AC_MSG_WARN([
*** Without Perl you will not be able to build PostgreSQL from CVS.
*** You can obtain Perl from any CPAN mirror site.
*** (If you are using the official distribution of PostgreSQL then you do not
*** need to worry about this, because the Perl output is pre-generated.)])
fi
])# PGAC_PATH_PERL
# PGAC_CHECK_PERL_CONFIG(NAME)