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51 lines
1.6 KiB

diff --git a/configure.in b/configure.in
index 896e81c1ce..73b1c8ccbb 100644
--- a/configure.in
+++ b/configure.in
@@ -4275,6 +4275,10 @@ if test "yes" = "$use_atomic"; then
AC_MSG_RESULT($arch)
fi
+if test ! "$arch" = "x86_64" -a "$have_xaddq" = "yes"; then
+ AC_MSG_ERROR([XADDQ present but disabled by Fedora patch!])
+fi
+
if test "yes" = "$have_atomic"; then
AC_MSG_CHECKING([compiler support for inline assembly code])
diff --git a/lib/isc/include/isc/platform.h.in b/lib/isc/include/isc/platform.h.in
index 2ff522342f..58df86adb3 100644
--- a/lib/isc/include/isc/platform.h.in
+++ b/lib/isc/include/isc/platform.h.in
@@ -289,19 +289,25 @@
* If the "xaddq" operation (64bit xadd) is available on this architecture,
* ISC_PLATFORM_HAVEXADDQ will be defined.
*/
-@ISC_PLATFORM_HAVEXADDQ@
/*
- * If the 32-bit "atomic swap" operation is available on this
- * architecture, ISC_PLATFORM_HAVEATOMICSTORE" will be defined.
+ * If the 64-bit "atomic swap" operation is available on this
+ * architecture, ISC_PLATFORM_HAVEATOMICSTOREQ" will be defined.
*/
-@ISC_PLATFORM_HAVEATOMICSTORE@
+
+#ifdef __x86_64__
+#define ISC_PLATFORM_HAVEXADDQ 1
+#define ISC_PLATFORM_HAVEATOMICSTOREQ 1
+#else
+#undef ISC_PLATFORM_HAVEXADDQ
+#undef ISC_PLATFORM_HAVEATOMICSTOREQ
+#endif
/*
- * If the 64-bit "atomic swap" operation is available on this
+ * If the 32-bit "atomic swap" operation is available on this
* architecture, ISC_PLATFORM_HAVEATOMICSTORE" will be defined.
*/
-@ISC_PLATFORM_HAVEATOMICSTOREQ@
+@ISC_PLATFORM_HAVEATOMICSTORE@
/*
* If the "compare-and-exchange" operation is available on this architecture,