diff options
Diffstat (limited to 'win/configure.in')
| -rw-r--r-- | win/configure.in | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/win/configure.in b/win/configure.in index 3ffe9f2..50f5de4 100644 --- a/win/configure.in +++ b/win/configure.in @@ -3,7 +3,7 @@ # generate the file "configure", which is run during Tcl installation # to configure the system for the local environment. # -# RCS: @(#) $Id: configure.in,v 1.127 2010/12/10 15:44:53 nijtmans Exp $ +# RCS: @(#) $Id: configure.in,v 1.128 2010/12/20 10:28:47 nijtmans Exp $ AC_INIT(../generic/tcl.h) AC_PREREQ(2.59) @@ -272,6 +272,29 @@ if test "$tcl_cv_mwmo_alertable" = "no"; then [Defined when MWMO_ALERTABLE is missing from winuser.h]) fi +# See if the compiler supports intrinsics. + +AC_CACHE_CHECK(for intrinsics support in compiler, + tcl_cv_intrinsics, +AC_TRY_COMPILE([ +#define WIN32_LEAN_AND_MEAN +#include <windows.h> +#undef WIN32_LEAN_AND_MEAN +#include <intrin.h> +], +[ + unsigned int regs[4]; + __cpuid(®s,0); + __debugbreak(); +], + tcl_cv_intrinsics=yes, + tcl_cv_intrinsics=no) +) +if test "$tcl_cv_intrinsics" = "yes"; then + AC_DEFINE(HAVE_INTRIN_H, 1, + [Defined when the compilers supports intrinsics]) +fi + #-------------------------------------------------------------------- # Determines the correct binary file extension (.o, .obj, .exe etc.) #-------------------------------------------------------------------- |