From: Ben Pfaff <blp@nicira.com>
Date: Tue, 31 Dec 2013 22:20:01 +0000 (-0800)
Subject: configure: Make autoconf fail if libtool is not installed.
X-Git-Tag: sliver-openvswitch-2.1.90-1~10^2~28
X-Git-Url: http://git.onelab.eu/?a=commitdiff_plain;h=32015a3fd30162d92350c94e756a9fb9e39025ca;p=sliver-openvswitch.git

configure: Make autoconf fail if libtool is not installed.

Otherwise users get an error later like:
    ./configure: line 5093: syntax error near unexpected token
    `disable-shared' ./configure: line 5093: `LT_INIT(disable-shared)'
It's probably friendlier to make configuration fail earlier.

Signed-off-by: Ben Pfaff <blp@nicira.com>
---

diff --git a/configure.ac b/configure.ac
index f6a11f03f..6a999d035 100644
--- a/configure.ac
+++ b/configure.ac
@@ -41,6 +41,8 @@ AC_C_BIGENDIAN
 AC_SYS_LARGEFILE
 
 LT_INIT([disable-shared])
+m4_pattern_forbid([LT_INIT]) dnl Make autoconf fail if libtool is missing.
+
 AC_SEARCH_LIBS([pow], [m])
 AC_SEARCH_LIBS([clock_gettime], [rt])
 AC_SEARCH_LIBS([timer_create], [rt])