Nico Weber 951f362e25 [clang-cl] Add a /diasdkdir flag and make /winsysroot imply it ...

D109708 added "DIA SDK" to our win sysroot for hermetic builds
that use LLVM_ENABLE_DIA_SDK. But the build system still has to
manually pass flags pointing to it.

Since we have a /winsysroot flag, make it look at DIA SDK in
the sysroot.

With this, the following is enough to compile the DIA2Dump example:

out\gn\bin\clang-cl ^
  "sysroot\DIA SDK\Samples\DIA2Dump\DIA2Dump.cpp" ^
  "sysroot\DIA SDK\Samples\DIA2Dump\PrintSymbol.cpp" ^
  "sysroot\DIA SDK\Samples\DIA2Dump\regs.cpp" ^
  /diasdkdir "sysroot\DIA SDK" ^
  ole32.lib oleaut32.lib diaguids.lib

Differential Revision: https://reviews.llvm.org/D109828

2021-09-16 07:42:32 -04:00

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