--- a/configure
+++ b/configure
@@ -2361,7 +2361,7 @@ test -n "$target_alias" &&
     NONENONEs,x,x, &&
   program_prefix=${target_alias}-
 
-case "$build_os" in
+case "$host_os" in
   freebsd*)
 	OS=FREEBSD
 	$as_echo "#define FREEBSD 1" >>confdefs.h
@@ -3999,11 +3999,11 @@ $as_echo_n "checking whether enabling th
 	    LDFLAGS="$LDFLAGS -lpthread"
 	fi
 	if test "$cross_compiling" = yes; then :
-  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot run test program while cross compiling
-See \`config.log' for more details" "$LINENO" 5; }
-else
+#  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+#$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+#as_fn_error $? "cannot run test program while cross compiling
+#See \`config.log' for more details" "$LINENO" 5; }
+#else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */