configure: fail if invoked with -param=value (instead of "-param value")

(Patch by Adrien Nader!)

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13842 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02

1 files changed, 4 insertions, 0 deletions

diff --git a/configure b/configure
index 48e218d77..b9f59de22 100755
--- a/configure
+++ b/configure
@@ -83,6 +83,10 @@ exec 3>&1
 
 # Parse command-line arguments
 
+if echo "$configure_options" | grep -q -e '--\?[a-zA-Z0-9-]\+='; then
+  err "Arguments to this script look like '-prefix /foo/bar', not '-prefix=/foo/bar' (note the '=')."
+fi
+
 while : ; do
   case "$1" in
     "") break;;