build-sys: fix typo

Fix a typo s/unnessary/unnecessary/ in configure --help

Signed-off-by: Gilles Espinasse <g.esp@free.fr>

diff --git a/configure.ac b/configure.ac
index 567aaab1a3c9791041c73dd6cd3a375af325a978..cfdc9e7348e21255c77fa46c7b21d94a99fbd2c6 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -196,7 +196,7 @@ if test "x$enable_w_from" = xyes; then
 fi
 
 AC_ARG_ENABLE([whining],
-  AS_HELP_STRING([--disable-whining], [do not print unnessary warnings (slackware-ism)]),
+  AS_HELP_STRING([--disable-whining], [do not print unnecessary warnings (slackware-ism)]),
   [], enable_whining=yes
 )
 if test "x$enable_whining" = xyes; then