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Check for some perl modules.

These are the modules needed by the core barnowl. We should probably
eventually check for the ones Jabber and IRC need, too.

Reviewed-by: Anders Kaseorg <andersk@mit.edu>
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1 parent 4c97193 commit 2d3ed95eba3d5651a17d8ec24cd534352c8a2070 @nelhage committed Mar 28, 2010
Showing with 82 additions and 0 deletions.
  1. +5 −0 configure.ac
  2. +77 −0 m4/ax_prog_perl_modules.m4
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@@ -98,6 +98,11 @@ AC_MSG_NOTICE([Adding perl LIBS ${FOO}])
LIBS=${LIBS}\ ${FOO}
AC_CHECK_LIB([perl], [perl_alloc],, AC_MSG_ERROR([No libperl found]))
+AX_PROG_PERL_MODULES([Class::Accessor::Fast],,
+ [AC_MSG_ERROR([cannot find perl module Class::Accessor::Fast.])])
+AX_PROG_PERL_MODULES([PAR],,
+ [AC_MSG_WARN([PAR.pm not found. Loadable modules will be disabled.])])
+
dnl Add CFLAGS and LDFLAGS for glib-2.0
PKG_CHECK_MODULES(GLIB,glib-2.0)
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@@ -0,0 +1,77 @@
+# ===========================================================================
+# http://www.nongnu.org/autoconf-archive/ax_prog_perl_modules.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_PROG_PERL_MODULES([MODULES], [ACTION-IF-TRUE], [ACTION-IF-FALSE])
+#
+# DESCRIPTION
+#
+# Checks to see if the given perl modules are available. If true the shell
+# commands in ACTION-IF-TRUE are executed. If not the shell commands in
+# ACTION-IF-FALSE are run. Note if $PERL is not set (for example by
+# calling AC_CHECK_PROG, or AC_PATH_PROG), AC_CHECK_PROG(PERL, perl, perl)
+# will be run.
+#
+# MODULES is a space separated list of module names. To check for a
+# minimum version of a module, append the version number to the module
+# name, separated by an equals sign.
+#
+# Example:
+#
+# AX_PROG_PERL_MODULES( Text::Wrap Net::LDAP=1.0.3, ,
+# AC_MSG_WARN(Need some Perl modules)
+#
+# LICENSE
+#
+# Copyright (c) 2009 Dean Povey <povey@wedgetail.com>
+#
+# Copying and distribution of this file, with or without modification, are
+# permitted in any medium without royalty provided the copyright notice
+# and this notice are preserved. This file is offered as-is, without any
+# warranty.
+
+#serial 6
+
+AU_ALIAS([AC_PROG_PERL_MODULES], [AX_PROG_PERL_MODULES])
+AC_DEFUN([AX_PROG_PERL_MODULES],[dnl
+
+m4_define([ax_perl_modules])
+m4_foreach([ax_perl_module], m4_split(m4_normalize([$1])),
+ [
+ m4_append([ax_perl_modules],
+ [']m4_bpatsubst(ax_perl_module,=,[ ])[' ])
+ ])
+
+# Make sure we have perl
+if test -z "$PERL"; then
+AC_CHECK_PROG(PERL,perl,perl)
+fi
+
+if test "x$PERL" != x; then
+ ax_perl_modules_failed=0
+ for ax_perl_module in ax_perl_modules; do
+ AC_MSG_CHECKING(for perl module $ax_perl_module)
+
+ # Would be nice to log result here, but can't rely on autoconf internals
+ $PERL -e "use $ax_perl_module; exit" > /dev/null 2>&1
+ if test $? -ne 0; then
+ AC_MSG_RESULT(no);
+ ax_perl_modules_failed=1
+ else
+ AC_MSG_RESULT(ok);
+ fi
+ done
+
+ # Run optional shell commands
+ if test "$ax_perl_modules_failed" = 0; then
+ :
+ $2
+ else
+ :
+ $3
+ fi
+else
+ AC_MSG_WARN(could not find perl)
+fi])dnl

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