[LLVMbugs] [Bug 23947] New: CMake+Mips: find_library() doesn't work correctly when recursing 64-bit (both N32 and N64 ABI's) compiler on Debian Jessie

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=23947

            Bug ID: 23947
           Summary: CMake+Mips: find_library() doesn't work correctly when
                    recursing 64-bit (both N32 and N64 ABI's) compiler on
                    Debian Jessie
           Product: Build scripts
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: cmake
          Assignee: unassignedbugs at nondot.org
          Reporter: daniel.sanders at imgtec.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Here's the Debian bug report:
 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=785401
To summarize:
* libdl and libpthread aren't found but are installed in /usr/lib32
* libxml2 is found, but it's the O32 binary which is link-incompatible with
N32/N64.

Also, semi-related but not officially reported to Debian yet:
* zlib is present but is not usable. There is no zconf.h in the N32/N64 search
paths.

This blocks 64-bit Mips releases using cmake. We don't do 64-bit releases yet
but we hope to soon.

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