[LLVMbugs] [Bug 2040] New: Docs for building llvm-gcc-4. 2 incorrectly explain bootstrap option.

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=2040

           Summary: Docs for building llvm-gcc-4.2 incorrectly explain
                    bootstrap option.
           Product: Documentation
           Version: 2.2
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: General docs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: ttmrichter at gmail.com
                CC: llvmbugs at cs.uiuc.edu


For GCC 4.0.1 the instructions in README.LLVM are correct (barring the
oversight reported earlier).  Things have changed for 4.2, however, as regards
bootstrapping.  Where in the old system you just had to make
LLVM_VERSION_INFO=n.n bootstrap/bootstrap2 after doing your configure, the new
system has an extra configure option required: --enable-bootstrap.  Without
that option set up, the build fails with bizarre error messages like "unknown
target '!'" and the like.  Documentation should be updated to reflect this
change.


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