[LLVMbugs] [Bug 18990] New: Unnecessary ordering dependencies in generated build.ninja

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=18990

            Bug ID: 18990
           Summary: Unnecessary ordering dependencies in generated
                    build.ninja
           Product: Build scripts
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: cmake
          Assignee: unassignedbugs at nondot.org
          Reporter: rafael.espindola at gmail.com
                CC: brad.king at kitware.com, geek4civic at gmail.com,
                    llvmbugs at cs.uiuc.edu
    Classification: Unclassified

NAKAMURA Takumi noted that there are still some unnecessary ordering
dependencies being generated, even with cmake 2.8.12. For example:


build utils/TableGen/CMakeFiles/llvm-tblgen.dir/TableGen.cpp.o: CXX_COMPILER
/home/espindola/llvm/llvm/utils/TableGen/TableGen.cpp || lib/libLLVMTableGen.a
lib/libLLVMSupport.a

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