llvm dev - Apr 2006 - [LLVMdev] successfully bootstraped on a i686-linux-gnu

Building with --enable-llvm failed latter on when compiling libojc:

configure:5099: checking for exception model to use
configure:5131:  /home/rafael/dev/gcc/build/gcc/xgcc
-B/home/rafael/dev/gcc/build/gcc/ -B/i686-pc-linux-gnu/bin/
-B/i686-pc-linux-gnu/lib/ -isystem /i686-pc-linux-gnu/include -isystem
/i686-pc-linux-gnu/sys-include -c -xobjecti
ve-c -fgnu-runtime -fobjc-exceptions -S  conftest.c >&5
WARNING: EH not supported yet!
configure:5134: $? = 0
configure:5155: error: unable to detect exception model

To work aroud the problem I edited gcc/objc/config-lang.in and removed
the comment from the line
#target_libs=target-libobjc

With this change it is again possible to build without objc. The
complete configure line was

../llvm-gcc4-1.7.source/configure --prefix=$CFEINSTALL
--enable-languages=c,c++ --program-prefix=llvm-
--enable-llvm=/home/rafael/dev/obj/ --enable-checking

Best Regards,
Rafael

On Fri, 21 Apr 2006, [UTF-8] Rafael Esp?ndola wrote:
> To work aroud the problem I edited gcc/objc/config-lang.in and removed
> the comment from the line
> #target_libs=target-libobjc
>
> With this change it is again possible to build without objc. The
> complete configure line was
>
> ../llvm-gcc4-1.7.source/configure --prefix=$CFEINSTALL
> --enable-languages=c,c++ --program-prefix=llvm-
> --enable-llvm=/home/rafael/dev/obj/ --enable-checking
This is the right fix, thanks!  I've applied it to the main llvmgcc tree.

-Chris

-- 
http://nondot.org/sabre/
http://llvm.org/

Hi,

I recently bootstrapped gcc4 frontend on a i686-linux-gnu too.
As I notice, if the llvm "tools-only " was build with srcdir != objdir
,
the building of llvm-gcc4-1.7.source encountered mistakes of unable to find some
header files.
So I just edited llvm-gcc4-1.7.source/gcc/Makefile.in and a line like this:

INCLUDES += -I$(LLVMOBJDIR)/include

With this change, the building errors were gone.
Is this the right hack? Thanks.

Nai



On Friday 28 April 2006 08:05, Chris Lattner wrote:
> On Fri, 21 Apr 2006, [UTF-8] Rafael Esp?ndola wrote:
> > To work aroud the problem I edited gcc/objc/config-lang.in and removed
> > the comment from the line
> > #target_libs=target-libobjc
> >
> > With this change it is again possible to build without objc. The
> > complete configure line was
> >
> > ../llvm-gcc4-1.7.source/configure --prefix=$CFEINSTALL
> > --enable-languages=c,c++ --program-prefix=llvm-
> > --enable-llvm=/home/rafael/dev/obj/ --enable-checking
> 
> This is the right fix, thanks!  I've applied it to the main llvmgcc
tree.
> 
> -Chris
>