---

yaml
---
r: 36575
b: refs/heads/try2
c: 10f6b0f
h: refs/heads/master
i:
  36573: 8dd6996
  36571: 70672ee
  36567: 5e33534
  36559: 5129eb6
  36543: fa3ec52
v: v3

Author: catamorphism

[refs]

@@ -5,7 +5,7 @@ refs/heads/snap-stage3: eb8fd119c65c67f3b1b8268cc7341c22d39b7b61
 refs/heads/try: d324a424d8f84b1eb049b12cf34182bda91b0024
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
-refs/heads/try2: 3af757631e1d1aca2fbf890a122123b638341633
+refs/heads/try2: 10f6b0f6e1f9864dd294b319857bd9d9ec7ae6c0
 refs/heads/incoming: d9317a174e434d4c99fc1a37fd7dc0d2f5328d37
 refs/heads/dist-snap: 22efa39382d41b084fde1719df7ae8ce5697d8c9
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596

branches/try2/configure

@@ -114,7 +114,38 @@ probe_need() {
     fi
 }
 
+validate_opt () {
+    for arg in $CFG_CONFIGURE_ARGS
+    do
+        isArgValid=0
+        for option in $BOOL_OPTIONS
+        do
+            if test --disable-$option = $arg
+            then
+                isArgValid=1
+            fi
+            if test --enable-$option = $arg
+            then
+                isArgValid=1
+            fi
+        done
+        for option in $VAL_OPTIONS
+        do
+            if echo "$arg" | grep -q -- "--$option="
+            then
+                isArgValid=1
+            fi
+        done
+        if test $isArgValid -eq 0
+        then
+            err "Option '$arg' is not recognized"
+        fi
+    done
+}
+
 valopt() {
+    VAL_OPTIONS="$VAL_OPTIONS $1"
+
     local OP=$1
     local DEFAULT=$2
     shift
@@ -145,6 +176,8 @@ valopt() {
 }
 
 opt() {
+    BOOL_OPTIONS="$BOOL_OPTIONS $1"
+
     local OP=$1
     local DEFAULT=$2
     shift
@@ -293,6 +326,9 @@ else
     step_msg "processing $CFG_SELF args"
 fi
 
+BOOL_OPTIONS=""
+VAL_OPTIONS=""
+
 opt sharedstd 1 "build libstd as a shared library"
 opt valgrind 0 "run tests with valgrind (memcheck by default)"
 opt helgrind 0 "run tests with helgrind instead of memcheck"
@@ -313,6 +349,10 @@ valopt llvm-root "" "set LLVM root"
 valopt host-triple "${DEFAULT_HOST_TRIPLE}" "LLVM host triple"
 valopt target-triples "${CFG_HOST_TRIPLE}" "LLVM target triples"
 
+# Validate Options
+step_msg "validating $CFG_SELF args"
+validate_opt
+
 if [ $HELP -eq 1 ]
 then
     echo ""