From: Todd Vierling <tv@duh.org>
Date: Sat, 17 Apr 2004 15:30:40 +0000 (+0000)
Subject: Peter O'Gorman  <peter@pogma.com>
X-Git-Tag: release-1-9b~90
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9e72c23fc80c9790266208e88db92b5c9dfdd5e4;p=thirdparty%2Flibtool.git

Peter O'Gorman  <peter@pogma.com>

* m4/libtool.m4 (AC_LIBTOOL_SYS_MAX_CMD_LEN): Use sysctl to get the
max cmd length on BSD* and darwin. Make sure that there is a safety
factor too.
---

diff --git a/ChangeLog b/ChangeLog
index 7532c5ed9..9f42fad75 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2004-04-17  Todd Vierling  <tv@duh.org>, 
+	Peter O'Gorman  <peter@pogma.com>
+
+	* m4/libtool.m4 (AC_LIBTOOL_SYS_MAX_CMD_LEN): Use sysctl to get the
+	max cmd length on BSD* and darwin. Make sure that there is a safety
+	factor too.
+
 2004-04-15  Scott James Remnant  <scott@netsplit.com>
 
 	* m4/libtool.m4 (_LT_LANG_DEFAULT_CONFIG): Remove code to handle 'none'
diff --git a/m4/libtool.m4 b/m4/libtool.m4
index 1ceda3282..5ae8637ce 100644
--- a/m4/libtool.m4
+++ b/m4/libtool.m4
@@ -1107,6 +1107,18 @@ AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
     lt_cv_sys_max_cmd_len=8192;
     ;;
 
+  netbsd* | freebsd* | openbsd* | darwin* )
+    # This has been around since 386BSD, at least.  Likely further.
+    if test -x /sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
+    elif test -x /usr/sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
+    else
+      lt_cv_sys_max_cmd_len=65536 # usable default for *BSD
+    fi
+    # And add a safety zone
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+    ;;
  *)
     # Make teststring a little bigger before we do anything with it.
     # a 1K string should be a reasonable start.