[LLVMdev] Just got bitten by accidentally using the wrong gcc
Tanya M. Lattner
tonic at nondot.org
Thu Mar 20 15:44:33 PDT 2008
>> 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: Entering directory `/home/jo/llvm-wrk/lib/VMCore'
>> make: *** 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: 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
Its not just a matter of checking major/minor versions. It also depends on
the target and in some cases the OS.
So for example, GCC 3.3.3 on Suse or GCC 3.4.0 on linux/x86
(32-bit) has issues. Is it easy to check these kinds of things? Do we even
I guess it could be done for things like 4.1.1 or a couple of others on
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