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-rw-r--r--Source/kwsys/CMakeLists.txt2
-rw-r--r--Source/kwsys/Configure.hxx.in4
-rw-r--r--Source/kwsys/hashtable.hxx.in8
-rw-r--r--Source/kwsys/kwsysPlatformCxxTests.cxx14
4 files changed, 28 insertions, 0 deletions
diff --git a/Source/kwsys/CMakeLists.txt b/Source/kwsys/CMakeLists.txt
index ff2a4bc..6423089 100644
--- a/Source/kwsys/CMakeLists.txt
+++ b/Source/kwsys/CMakeLists.txt
@@ -205,6 +205,8 @@ KWSYS_PLATFORM_CXX_TEST(KWSYS_CXX_HAS_MEMBER_TEMPLATES
"Checking for member template support" DIRECT)
KWSYS_PLATFORM_CXX_TEST(KWSYS_CXX_HAS_FULL_SPECIALIZATION
"Checking for standard template specialization syntax" DIRECT)
+KWSYS_PLATFORM_CXX_TEST(KWSYS_CXX_HAS_ARGUMENT_DEPENDENT_LOOKUP
+ "Checking whether argument dependent lookup is supported" DIRECT)
IF(UNIX)
KWSYS_PLATFORM_CXX_TEST(KWSYS_STAT_HAS_ST_MTIM
diff --git a/Source/kwsys/Configure.hxx.in b/Source/kwsys/Configure.hxx.in
index 1ea8b37..3cddb34 100644
--- a/Source/kwsys/Configure.hxx.in
+++ b/Source/kwsys/Configure.hxx.in
@@ -76,6 +76,9 @@
/* Whether the compiler supports member templates. */
#define @KWSYS_NAMESPACE@_CXX_HAS_MEMBER_TEMPLATES @KWSYS_CXX_HAS_MEMBER_TEMPLATES@
+/* Whether the compiler supports argument dependent lookup. */
+#define @KWSYS_NAMESPACE@_CXX_HAS_ARGUMENT_DEPENDENT_LOOKUP @KWSYS_CXX_HAS_ARGUMENT_DEPENDENT_LOOKUP@
+
/* Whether the compiler supports standard full specialization syntax. */
#define @KWSYS_NAMESPACE@_CXX_HAS_FULL_SPECIALIZATION @KWSYS_CXX_HAS_FULL_SPECIALIZATION@
@@ -128,6 +131,7 @@
# define KWSYS_CXX_DECL_TYPENAME @KWSYS_NAMESPACE@_CXX_DECL_TYPENAME
# define KWSYS_STL_HAS_ALLOCATOR_REBIND @KWSYS_NAMESPACE@_STL_HAS_ALLOCATOR_REBIND
# define KWSYS_STL_HAS_ALLOCATOR_MAX_SIZE_ARGUMENT @KWSYS_NAMESPACE@_STL_HAS_ALLOCATOR_MAX_SIZE_ARGUMENT
+# define KWSYS_CXX_HAS_ARGUMENT_DEPENDENT_LOOKUP @KWSYS_NAMESPACE@_CXX_HAS_ARGUMENT_DEPENDENT_LOOKUP
#endif
#endif
diff --git a/Source/kwsys/hashtable.hxx.in b/Source/kwsys/hashtable.hxx.in
index 80f633c..cb2f19f 100644
--- a/Source/kwsys/hashtable.hxx.in
+++ b/Source/kwsys/hashtable.hxx.in
@@ -1087,6 +1087,14 @@ void hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>
} // namespace @KWSYS_NAMESPACE@
+// Normally the comparison operators should be found in the @KWSYS_NAMESPACE@
+// namespace by argument dependent lookup. For compilers that do not
+// support it we must bring them into the global namespace now.
+#if !@KWSYS_NAMESPACE@_CXX_HAS_ARGUMENT_DEPENDENT_LOOKUP
+using @KWSYS_NAMESPACE@::operator==;
+using @KWSYS_NAMESPACE@::operator!=;
+#endif
+
#if defined(_MSC_VER)
# pragma warning (pop)
#endif
diff --git a/Source/kwsys/kwsysPlatformCxxTests.cxx b/Source/kwsys/kwsysPlatformCxxTests.cxx
index 74e83bd..9edbfc0 100644
--- a/Source/kwsys/kwsysPlatformCxxTests.cxx
+++ b/Source/kwsys/kwsysPlatformCxxTests.cxx
@@ -108,6 +108,20 @@ template <> struct A<int*>
int main() { return A<int*>::f(); }
#endif
+#ifdef TEST_KWSYS_CXX_HAS_ARGUMENT_DEPENDENT_LOOKUP
+namespace N
+{
+ class A {};
+ int f(A*) { return 0; }
+}
+void f(void*);
+int main()
+{
+ N::A* a = 0;
+ return f(a);
+}
+#endif
+
#ifdef TEST_KWSYS_STL_HAS_ALLOCATOR_REBIND
#include <memory>
template <class T, class Alloc>