[LLVMdev] Just got bitten by accidentally using the wrong gcc

[Eric Christopher]

On Mar 20, 2008, at 3:00 PM, Joachim Durchholz wrote:
> Hi all,
>
> I just forgot to ./configure with CC=gcc-4.2 CXX=g++-4.2, getting the
> (broken-for-LLVM) gcc-4.1 as a compiler.
> The error message that I got was this:
>  make[1]: Entering directory `/home/jo/llvm-wrk/lib/VMCore'
>  make[1]: *** No rule to make target
>    `/home/jo/llvm-wrk/Release/bin/tblgen', needed by
>    `/home/jo/llvm-wrk/lib/VMCore/Release/Intrinsics.gen.tmp'.  Stop.
>  make[1]: Leaving directory `/home/jo/llvm-wrk/lib/VMCore'
>  make: *** [install] Error 1
>
> It took me a while to figure out what went wrong.
>
> I guess I'm not the only one to stumble upon this problem.
>
> Would it be a good idea to make ./configure check whether there's an
> incompatible tool configured, and carp if it finds one?

Probably be a good idea. It's reasonably easy to check major/minor  
versions.

-eric