mirror of https://github.com/postgres/postgres
78 lines
2.2 KiB
Plaintext
78 lines
2.2 KiB
Plaintext
# ===========================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_prog_perl_modules.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_PROG_PERL_MODULES([MODULES], [ACTION-IF-TRUE], [ACTION-IF-FALSE])
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#
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# DESCRIPTION
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#
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# Checks to see if the given perl modules are available. If true the shell
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# commands in ACTION-IF-TRUE are executed. If not the shell commands in
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# ACTION-IF-FALSE are run. Note if $PERL is not set (for example by
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# calling AC_CHECK_PROG, or AC_PATH_PROG), AC_CHECK_PROG(PERL, perl, perl)
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# will be run.
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#
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# MODULES is a space separated list of module names. To check for a
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# minimum version of a module, append the version number to the module
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# name, separated by an equals sign.
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#
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# Example:
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#
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# AX_PROG_PERL_MODULES( Text::Wrap Net::LDAP=1.0.3, ,
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# AC_MSG_WARN(Need some Perl modules)
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#
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# LICENSE
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#
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# Copyright (c) 2009 Dean Povey <povey@wedgetail.com>
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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#serial 8
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AU_ALIAS([AC_PROG_PERL_MODULES], [AX_PROG_PERL_MODULES])
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AC_DEFUN([AX_PROG_PERL_MODULES],[dnl
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m4_define([ax_perl_modules])
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m4_foreach([ax_perl_module], m4_split(m4_normalize([$1])),
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[
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m4_append([ax_perl_modules],
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[']m4_bpatsubst(ax_perl_module,=,[ ])[' ])
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])
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# Make sure we have perl
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if test -z "$PERL"; then
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AC_CHECK_PROG(PERL,perl,perl)
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fi
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if test "x$PERL" != x; then
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ax_perl_modules_failed=0
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for ax_perl_module in ax_perl_modules; do
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AC_MSG_CHECKING(for perl module $ax_perl_module)
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# Would be nice to log result here, but can't rely on autoconf internals
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$PERL -e "use $ax_perl_module; exit" > /dev/null 2>&1
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if test $? -ne 0; then
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AC_MSG_RESULT(no);
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ax_perl_modules_failed=1
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else
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AC_MSG_RESULT(ok);
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fi
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done
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# Run optional shell commands
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if test "$ax_perl_modules_failed" = 0; then
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:
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$2
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else
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:
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$3
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fi
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else
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AC_MSG_WARN(could not find perl)
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fi])dnl
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