llvm dev - Jul 2011 - [LLVMdev] Does also-emit-llvm plugin option in gold plugin still work?

I installed LLVM gold plugin and can ran the example in 
http://llvm.org/docs/GoldPlugin.html#example1. 


Then I tried to use it to build a big project. I set the environment variables 
like: 

export CC="/usr/local/bin/clang -use-gold-plugin -Wl, 
-plugin-opt=also-emit-llvm" 

export CXX="/usr/local/bin/clang++ -use-gold-plugin -Wl, 
-plugin-opt=also-emit-llvm" 

export AR="/usr/bin/ar" 
export NM="/usr/bin/nm" 
export RANLIB=/bin/true #ranlib is not needed, and doesn't support .bc files
in
.a 

export CFLAGS="-O4" 

========================== 
Then I ran configure and make but got the following errors: 
clang: warning: -Wl,: 'linker' input unused when '-c' is present
clang: warning: argument unused during compilation:
'-plugin-opt=also-emit-llvm'

  CXX(target) llvm/Debug/obj.target/base/base/base64.o 
clang: warning: -Wl,: 'linker' input unused when '-c' is present
clang: warning: argument unused during compilation:
'-plugin-opt=also-emit-llvm'

  CXX(target) llvm/Debug/obj.target/base/base/event_recorder_stubs.o 
clang: warning: -Wl,: 'linker' input unused when '-c' is present
clang: warning: argument unused during compilation:
'-plugin-opt=also-emit-llvm'

  CXX(target) llvm/Debug/obj.target/base/base/file_descriptor_shuffle.o 


Do you know how I can solve this problem? Thanks in advance.
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> =========================> Then I ran configure and make but got the
following errors:
> clang: warning: -Wl,: 'linker' input unused when '-c' is
present
> clang: warning: argument unused during compilation:
> '-plugin-opt=also-emit-llvm'
> CXX(target) llvm/Debug/obj.target/base/base/base64.o
> clang: warning: -Wl,: 'linker' input unused when '-c' is
present
> clang: warning: argument unused during compilation:
> '-plugin-opt=also-emit-llvm'
> CXX(target) llvm/Debug/obj.target/base/base/event_recorder_stubs.o
> clang: warning: -Wl,: 'linker' input unused when '-c' is
present
> clang: warning: argument unused during compilation:
> '-plugin-opt=also-emit-llvm'
> CXX(target) llvm/Debug/obj.target/base/base/file_descriptor_shuffle.o
>
>
> Do you know how I can solve this problem? Thanks in advance.
Those are warnings. You can put the -Wl,-plugin-opt in LDFLAGS.

Open a bug if you think that we shouldn't warn for

clang -c -Wl,foo bar.c

Cheers,
Rafael