[SCM] GNU Libtool branch, master, updated. v2.4.2-157-g37a284f

[Peter O'Gorman]

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- Log -----------------------------------------------------------------
commit 37a284f50a93b772d86e8c68a346266aab5de7a5
Author: Mike Frysinger <address@hidden>
Date:   Wed Apr 18 23:14:50 2012 -0500

    Handle getconf returning "undefined".
    
    * m4/libtool.m4: Check for "undefined" from `getconf`.

-----------------------------------------------------------------------

Summary of changes:
 m4/libtool.m4 |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/m4/libtool.m4 b/m4/libtool.m4
index 75bfdb4..a8ecbc3 100644
--- a/m4/libtool.m4
+++ b/m4/libtool.m4
@@ -1692,7 +1692,8 @@ AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
     ;;
   *)
     lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
-    if test -n "$lt_cv_sys_max_cmd_len"; then
+    if test -n "$lt_cv_sys_max_cmd_len" && \
+       test undefined != "$lt_cv_sys_max_cmd_len"; then
       lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
       lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
     else


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