build.sh: Only support 32/64bit word sizes.

diff --git a/build.sh b/build.sh
index 29687ba3507a841307e95e603f1b0456249a41d4..bfa7e8c3315a9a2e4990981c5f3309e5bf07df3a 100755 (executable)
--- a/build.sh
+++ b/build.sh
@@ -324,6 +324,14 @@ c_find_word_size() {
     check_ret $CC
     ./$C_WORD
     WORD=$?
+    case $WORD in
+        32) ;;
+        64) ;;
+        *)
+            echo "Word size should be 32/64, got $WORD"
+            exit_script 15;;
+    esac
+
     $DELETE -f $C_WORD
 }