From: ghost_at_[hidden]
Date: 2007-12-01 09:56:23
Author: vladimir_prus
Date: 2007-12-01 09:56:23 EST (Sat, 01 Dec 2007)
New Revision: 41532
URL: http://svn.boost.org/trac/boost/changeset/41532
Log:
Change the detection of 64-bit windows to handle EM64T processors.
Text files modified:
trunk/tools/build/v2/tools/msvc.jam | 10 +++++++++-
1 files changed, 9 insertions(+), 1 deletions(-)
Modified: trunk/tools/build/v2/tools/msvc.jam
==============================================================================
--- trunk/tools/build/v2/tools/msvc.jam (original)
+++ trunk/tools/build/v2/tools/msvc.jam 2007-12-01 09:56:23 EST (Sat, 01 Dec 2007)
@@ -310,8 +310,16 @@
# and x86_ia64 is right one.
setup-option = x86 x86_amd64 x86_ia64 ;
- # Use a native x64 compiler if possible
+ # When using 64-bit Windows, and targeting 64-bit,
+ # it's possible to use native 64-bit compiler, which is
+ # selected by the "amd64" parameter to vcvarsall.bat.
+ # There are two variables we can use --
+ # PROCESSOR_ARCHITECTURE and PROCESSOR_IDENTIFIER.
+ # The first reflects processor proper, and the second is
+ # empirically found to be always x86 when using 32-bit
+ # windows.
if [ MATCH ^(AMD64) : [ os.environ PROCESSOR_IDENTIFIER ] ]
+ || [ MATCH ^(EM64T) : [ os.environ PROCESSOR_IDENTIFIER ] ]
{
setup-option = x86 amd64 x86_ia64 ;
}