configure: add 'arch' variable again, needed for portability

It was removed by 2e78f75, but it only needed to remove the variable
that was written to config.h, not the one that was used internally by
configure.

1 files changed, 2 insertions, 0 deletions

diff --git a/configure b/configure
index d566484b..cabefe7c 100755
--- a/configure
+++ b/configure
@@ -56,6 +56,8 @@ ldap=0
 
 pie=1
 
+arch=$(uname -s)
+
 GLIB_MIN_VERSION=2.16
 
 # Cygwin and Darwin don't support PIC/PIE