[LLVMbugs] [Bug 18987] New: [ASan/Win] Warning D9025 : overriding '/MD' with '/MT'

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu Feb 27 04:29:13 PST 2014


            Bug ID: 18987
           Summary: [ASan/Win] Warning D9025 : overriding '/MD' with '/MT'
           Product: compiler-rt
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: compiler-rt
          Assignee: unassignedbugs at nondot.org
          Reporter: timurrrr at google.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

compiler-rt is supposed to be linked with the users' binaries rather than Clang
itself, so it doesn't necessarily need to be linked with the same MSVC runtime

Currently, clang mostly supports building /MT-linked binaries, thus the ASan
runtime should be built with /MT as well.
The command line for building ASan RTL source files looks like this though:
  ...\cl.exe ... /W3   /MD /O2 /Ob2 ... /MT ...  -c
that results in:
  Warning D9025 : overriding '/MD' with '/MT'

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