[cfe-dev] svn update then make gives cc1 error: unrecognized command line option '-Wcovered-switch-default'
Larry Evans
cppljevans at suddenlink.net
Sat Oct 6 06:14:17 PDT 2012
On 10/06/12 04:59, Larry Evans wrote:
> On 10/05/12 21:37, Larry Evans wrote:
>> On 10/05/12 20:48, Eli Friedman wrote:
>>> On Fri, Oct 5, 2012 at 6:38 PM, Larry Evans <cppljevans at suddenlink.net> wrote:
>>>> On 10/05/12 20:31, Eli Friedman wrote:
>>>>> On Fri, Oct 5, 2012 at 5:58 PM, Larry Evans <cppljevans at suddenlink.net> wrote:
>>>>>> On 10/05/12 19:35, Eli Friedman wrote:
>>>>>>> On Fri, Oct 5, 2012 at 5:25 PM, Larry Evans <cppljevans at suddenlink.net> wrote:
>>>>>>>> On 10/05/12 13:32, Larry Evans wrote:
>>>>>>>> I just ran svn update:
>>>>>>>>
>>>>>>>> ~/download/llvm/svn/llvm $ svn update
>>>>>>>> ~/download/llvm/svn/llvm/tools/clang $ svn update
>>>>>>>> ~/download/llvm/svn/llvm/tools $ svn co
>>>>>>>> http://llvm.org/svn/llvm-project/clang-tools-extra/trunk extra
>>>>>>>> ~/download/llvm/svn/llvm/projects/compiler-rt $ svn update
>>>>>>>>
>>>>>>>> However, make resulted in:
>>>>>>>>
>>>>>>>> .
>>>>>>>> .
>>>>>>>> .
>>>>>>>> llvm[1]: Compiling regexec.c for Debug+Asserts build
>>>>>>>> cc1: error: unrecognized command line option "-Wcovered-switch-default"
>>>>>>>> /bin/rm: cannot remove
>>>>>>>>
>>>>>>>> `/home/evansl/download/llvm/svn/build/lib/Support/Debug+Asserts/regexec.d.tmp':
>>>>>>>> No such file or directory
>>>>>>>> make[1]: ***
>>>>>>>> [/home/evansl/download/llvm/svn/build/lib/Support/Debug+Asserts/regexec.o]
>>>>>>>> Error 1
>>>>>>>> make[1]: Leaving directory
>>>>>>>> `/home/evansl/download/llvm/svn/build/lib/Support'
>>>>>>>> make: *** [all] Error 1
>>>>>>>> ~/download/llvm/svn/build $
>>>>>>>>
>>>>>>>> How can this be corrected?
>>>>>>>>
>>>>>>>> My system is:
>>>>>>>>
>>>>>>>> uname -a
>>>>>>>> Linux evansl-desktop 2.6.32-41-generic #90-Ubuntu SMP Tue May 22
>>>>>>>> 11:29:51 UTC 2012 x86_64 GNU/Linux
>>>>>>>>
>>>>>>>> TIA.
>>>>>>>>
>>>>>>>> -regards,
>>>>>>>> Larry
>>>>>>>> SOLVED:
>>>>>>>>
>>>>>>>> Changed Makefile.config to remove the COVERED_SWITCH_DEFAULT macro,
>>>>>>>> and now it's working:
>>>>>>>>
>>>>>>>> ~/download/llvm/svn/build $ cat Makefile.config|grep switch
>>>>>>>> # -Wcovered-switch-default
>>>>>>>> #COVERED_SWITCH_DEFAULT = -Wcovered-switch-default
>>>>>>>> ~/download/llvm/svn/build $ make
>>>>>>>> llvm[0]: Constructing LLVMBuild project information.
>>>>>>>> make[1]: Entering directory
>>>>>>>> `/home/evansl/download/llvm/svn/build/lib/Support'
>>>>>>>> llvm[1]: Compiling regexec.c for Debug+Asserts build
>>>>>>>> llvm[1]: Compiling system_error.cpp for Debug+Asserts build
>>>>>>>> llvm[1]: Building Debug+Asserts Archive Library libLLVMSupport.a
>>>>>>>
>>>>>>> Err, this is a guess, but it's possible you're setting the C++
>>>>>>> compiler to clang++, but not setting the C compiler to clang.
>>>>>>>
>>>>>>> -Eli
>>>>>>
>>>>>> Thanks Eli.
>>>>>>
>>>>>> I've not set anything directly. I did do the configure step:
>>>>>>
>>>>>> ~/download/llvm/svn/llvm $ cd ..
>>>>>> ~/download/llvm/svn $ cd build
>>>>>> ~/download/llvm/svn/build $ ls ../llvn/configure
>>>>>> ../llvn/configure: No such file or directory
>>>>>> ~/download/llvm/svn/build $ ls ../llvm/configure
>>>>>> ../llvm/configure
>>>>>> ~/download/llvm/svn/build $ ../llvm/configure
>>>>>> checking for clang... no
>>>>>> checking for llvm-gcc... no
>>>>>> checking for gcc... gcc
>>>>>> .
>>>>>> .
>>>>>> .
>>>>>>
>>>>>> and maybe that did what you say. Hmmm. This is not the
>>>>>> 1st time I've built clang; so, maybe something's left over
>>>>>> from the last build.
>>>>>>
>>>>>> Where would I check to see which compiler is being used?
>>>>>
>>>>> You can look in config.log for lines starting with CC= and CXX= .
>>>>>
>>>>> -Eli
>>>> Thanks, config.log contains:
>>>>
>>>> CC='gcc'
>>>>
>>>> and:
>>>>
>>>> CXX='clang++'
>>>
>>> Okay. I suppose that's theoretically a combination we should support,
>>> but I doubt anyone cares in practice.
>>>
>>> What's the output of "which clang" and "which clang++"? Do you have
>>> CC or CXX set in your environment?
>>>
>>> -Eli
>>
>> Thanks Eli.
>>
>> Here's the info:
>>
>> evansl at evansl-desktop:~/bin$ echo $CC
>>
>> evansl at evansl-desktop:~/bin$ echo $CXX
>>
>> evansl at evansl-desktop:~/bin$ which clang
>> evansl at evansl-desktop:~/bin$ which clang++
>> /home/evansl/bin/clang++
>> evansl at evansl-desktop:~/bin$ ls -l ~/bin/clang++
>> lrwxrwxrwx 1 evansl evansl 62 Feb 6 2011 /home/evansl/bin/clang++ ->
>> /home/evansl/download/llvm/svn/build/Debug+Asserts/bin/clang++
>> evansl at evansl-desktop:~/bin$
>>
>> Maybe if I made another symlink in ~/bin to
>> home/evansl/download/llvm/svn/build/Debug+Asserts/bin/clang
>> everything would work as expected.
>
> Finally finished the build, but got link error at maybe last step:
>
>> make[4]: Entering directory `/home/evansl/download/llvm/svn/build/tools/clang/tools/driver'
>> llvm[4]: Compiling cc1_main.cpp for Debug+Asserts build
>> llvm[4]: Compiling cc1as_main.cpp for Debug+Asserts build
>> llvm[4]: Compiling driver.cpp for Debug+Asserts build
>> llvm[4]: Linking Debug+Asserts executable clang
>> clang: error: unable to execute command: Killed
>> clang: error: linker command failed due to signal (use -v to see invocation)
>> clang: note: diagnostic msg: Please submit a bug report to http://llvm.org/bugs/ and include command line arguments and all diagnostic information.
>> clang: note: diagnostic msg: Error generating preprocessed source(s) - no preprocessable inputs.
>> make[4]: *** [/home/evansl/download/llvm/svn/build/Debug+Asserts/bin/clang] Error 254
>> make[4]: Leaving directory `/home/evansl/download/llvm/svn/build/tools/clang/tools/driver'
>> make[3]: *** [all] Error 1
>> make[3]: Leaving directory `/home/evansl/download/llvm/svn/build/tools/clang/tools'
>> make[2]: *** [all] Error 1
>> make[2]: Leaving directory `/home/evansl/download/llvm/svn/build/tools/clang'
>> make[1]: *** [clang/.makeall] Error 2
>> make[1]: Leaving directory `/home/evansl/download/llvm/svn/build/tools'
>> make: *** [all] Error 1
>> ~/download/llvm/svn/build $
>
> Maybe the problem is I'm using gcc and clang++, or maybe the last step
> is replacing the driver.exe using the driver.exe?
>
> Maybe I should start over by 1st rm'ing the symlink in ~/bin that
> points to home/evansl/download/llvm/svn/build/Debug+Asserts/bin/clang++
> then doing a make clean, then a configure specifying prefix that
> points to something other than the build directory?
>
I just re-configured and re-made:
/home/evansl/download/llvm/svn/build $ cat my-configure.sh
#!/bin/bash
this_dir=`pwd`
$this_dir/../llvm/configure \
--prefix=$this_dir/../install
/home/evansl/download/llvm/svn/build $ ./my-configure.sh
checking for clang... no
checking for llvm-gcc... no
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
.
.
.
make[4]: Leaving directory
`/home/evansl/download/llvm/svn/build/bindings/ocaml/transforms/ipo'
make[3]: Leaving directory
`/home/evansl/download/llvm/svn/build/bindings/ocaml/transforms'
make[2]: Leaving directory
`/home/evansl/download/llvm/svn/build/bindings/ocaml'
make[1]: Leaving directory `/home/evansl/download/llvm/svn/build/bindings'
llvm[0]: ***** Completed Debug+Asserts Build
llvm[0]: ***** Note: Debug build can be 10 times slower than an
llvm[0]: ***** optimized build. Use make ENABLE_OPTIMIZED=1 to
llvm[0]: ***** make an optimized build. Alternatively you can
llvm[0]: ***** configure with --enable-optimized.
/home/evansl/download/llvm/svn/build $
However, when I tried `make install`, got:
/home/evansl/download/llvm/svn/build $ make install
llvm[0]: Installing include files
llvm[0]: Making install directory
/home/evansl/download/llvm/svn/build/../install/include/./llvm-c
llvm[0]: Making install directory
/home/evansl/download/llvm/svn/build/../install/include/./llvm-c/Transforms
llvm[0]: Making install directory
/home/evansl/download/llvm/svn/build/../install/include/./llvm
.
.
.
llvm[4]: Installing compiler runtime library: linux/asan-i386
make[4]: Leaving directory
`/home/evansl/download/llvm/svn/build/tools/clang/runtime/compiler-rt'
make[4]: Entering directory
`/home/evansl/download/llvm/svn/build/tools/clang/runtime/libcxx'
/usr/bin/make -C /home/evansl/download/llvm/svn/llvm/projects/libcxx \
HEADER_DIR=/home/evansl/download/llvm/svn/build/../install/lib
installheaders
make[5]: Entering directory
`/home/evansl/download/llvm/svn/llvm/projects/libcxx'
mkdir -p /home/evansl/download/llvm/svn/build/../install/lib/c++/v1/ext
rsync -r --exclude=".*" --exclude="support" ./include/* \
/home/evansl/download/llvm/svn/build/../install/lib/c++/v1/
chown -R root:wheel /home/evansl/download/llvm/svn/build/../install/lib/c++
chown: invalid group: `root:wheel'
make[5]: *** [do-installhdrs] Error 1
make[5]: Leaving directory
`/home/evansl/download/llvm/svn/llvm/projects/libcxx'
make[4]: *** [install-local] Error 2
make[4]: Leaving directory
`/home/evansl/download/llvm/svn/build/tools/clang/runtime/libcxx'
make[3]: *** [libcxx/.makeinstall] Error 2
make[3]: Leaving directory
`/home/evansl/download/llvm/svn/build/tools/clang/runtime'
make[2]: *** [install] Error 1
make[2]: Leaving directory
`/home/evansl/download/llvm/svn/build/tools/clang'
make[1]: *** [clang/.makeinstall] Error 2
make[1]: Leaving directory `/home/evansl/download/llvm/svn/build/tools'
make: *** [install] Error 1
/home/evansl/download/llvm/svn/build $
There's no group `root:wheel' on my system.
What should be done to fix this?
TIA.
-regards,
Larry
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