Taints the non-acquire RMW's store address with the load part

[oota-llvm.git] / autoconf / m4 / single_cxx_check.m4

diff --git a/autoconf/m4/single_cxx_check.m4 b/autoconf/m4/single_cxx_check.m4
index 516bc9f605d615c3f665e4f815e439383539ed04..cb4732641825a43e499ea47ff25e97ffe15fa7b7 100644 (file)
--- a/autoconf/m4/single_cxx_check.m4
+++ b/autoconf/m4/single_cxx_check.m4
@@ -1,14 +1,16 @@
-dnl AC_SINGLE_CXX_CHECK(DEFINEVAR, CACHEVAR, FUNCTION, HEADER, PROGRAM)
-dnl                     $1,        $2,       $3,       $4,     $5
-dnl 
+dnl
+dnl AC_SINGLE_CXX_CHECK(CACHEVAR, FUNCTION, HEADER, PROGRAM)
+dnl                     $1,       $2,       $3,     $4,
+
 AC_DEFUN([AC_SINGLE_CXX_CHECK],
-[AC_CACHE_CHECK([for $3 in $4], [$2],
- [AC_LANG_PUSH([C++])
-  AC_COMPILE_IFELSE(AC_LANG_SOURCE([$5]),[$2=yes],[$2=no])
- AC_LANG_POP([C++])])
- if test "$$2" = "yes"
- then
-   AC_DEFINE($1, 1, [Define to 1 if your compiler defines $3 in the $4
-                     header file.])
- fi])
+[
+  AC_CACHE_CHECK([for $2 in $3], [$1],
+  [
+    AC_LANG_PUSH([C++])
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include ]][$3], [$4])],
+                      [$1][[=yes]],
+                      [$1][[=no]])
+    AC_LANG_POP([C++])
+  ])
+])