[LLVMdev] LLVM Build/install error?

[Reid Spencer]

Carsten,

Those messages are coming from bugs in gcc 3.4. I used 3.4.6
successfully with LLVM for a long time and got those "defined in
discarded section" warnings many times. You can safely ignore them.
However, we recommend you move up to the 4.0.4 compiler for compiling
LLVM.

Reid.

On Mon, 2007-02-12 at 13:35 +0100, Carsten Reuter wrote:
> Hi,
> 
> I am trying to build and install LLVM onto a current Debian Linux system 
> using gcc4 frontend binaries for Red Hat Enterprise Linux4/x86 .
> Using the commands below the Build finishes, ignoring an error that 
> comes up again when I try to make install.
> See the messages below. I have no good feeling about the "-i -k" options.
> Is it OK?
> 
> Thank you in advance for any advice and best regards
> 
> Carsten
> 
> /usr/bin/gcc-4.0 -v
> Using built-in specs.
> Target: i486-linux-gnu
> Configured with: ../src/configure -v --enable-languages=c,c++,java 
> --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib 
> --without-included-gettext --enable-threads=posix --enable-nls 
> --program-suffix=-4.0 --enable-__cxa_atexit --enable-clocale=gnu 
> --enable-libstdcxx-debug --enable-java-awt=gtk-default 
> --enable-gtk-cairo 
> --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-4.0-1.4.2.0/jre 
> --with-tune=i686 --enable-checking=release i486-linux-gnu
> Thread model: posix
> gcc version 4.0.4 20060730 (prerelease) (Debian 4.0.3-6)
> 
> /usr/bin/gcc-3.4 -v
> Reading specs from /usr/lib/gcc/i486-linux-gnu/3.4.6/specs
> Configured with: ../src/configure -v --enable-languages=c,c++,f77,pascal 
> --prefix=/usr --libexecdir=/usr/lib 
> --with-gxx-include-dir=/usr/include/c++/3.4 --enable-shared 
> --with-system-zlib --enable-nls --without-included-gettext 
> --program-suffix=-3.4 --enable-__cxa_atexit --enable-clocale=gnu 
> --enable-libstdcxx-debug --with-tune=i686 i486-linux-gnu
> Thread model: posix
> gcc version 3.4.6 (Debian 3.4.6-4)
> 
> 
> cd /data/xscratch1/reuter/llvm
> /data/xscratch1/reuter/llvm-1.9/configure --prefix=/home/reuter/llvm 
> CC=/usr/bin/gcc-4.0 CXX=/usr/bin/g++-3.4 --enable-optimized 
> --enable-targets=sparc,x86
> make -j4 -i 
> -k                                                                    
> make install -i -k
> 
> make[2]: Entering directory `/data/xscratch1/reuter/llvm/tools/opt'
> llvm[2]: Linking Release executable opt (without symbols)
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> referenced in section `.rodata' of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o): 
> defined in discarded section 
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o)
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> referenced in section `.rodata' of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o): 
> defined in discarded section 
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o)
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> referenced in section `.rodata' of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o): 
> defined in discarded section 
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o)
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> referenced in section `.rodata' of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o): 
> defined in discarded section 
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o)
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> referenced in section `.rodata' of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o): 
> defined in discarded section 
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o)
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> referenced in section `.rodata' of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o): 
> defined in discarded section 
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o)
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> referenced in section `.rodata' of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o): 
> defined in discarded section 
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o)
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> referenced in section `.rodata' of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o): 
> defined in discarded section 
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o)
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> referenced in section `.rodata' of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o): 
> defined in discarded section 
> `.gnu.linkonce.t._ZN4llvm11SCEVVisitorINS_12SCEVExpanderEPNS_5ValueEE5visitEPNS_4SCEVE' 
> of 
> /data/xscratch1/reuter/llvm/Release/lib/libLLVMAnalysis.a(ScalarEvolutionExpander.o)
> collect2: ld returned 1 exit status
>