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Change the detection of 64-bit windows to handle EM64T processors.

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[SVN r41532]
This commit is contained in:
Vladimir Prus
2007-12-01 14:56:23 +00:00
parent 208e193c6a
commit fa75fd6cd0
1 changed files with 9 additions and 1 deletions
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10
v2/tools/msvc.jam
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@@ -310,8 +310,16 @@ local rule configure-really (
# 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 ;
}