llvm dev - Dec 2008 - [LLVMdev] Error when attempting to build llvm-gcc-1.5 on Mac OS X 10.5.6

Hi Anton,
			Where can I get gccas ? I am running Mac OS X 10.5.6 and I get the  
following error:

xgcc: installation problem, cannot exec `gccas': No such file or  
directory
make[2]: *** [libgcc/./_muldi3.o] Error 1
make[2]: *** Waiting for unfinished jobs....
xgcc: installation problem, cannot exec `gccas': No such file or  
directory
make[2]: *** [libgcc/./_negdi2.o] Error 1
make[1]: *** [libgcc.a] Error 2
make: *** [all-gcc] Error 2

Best regards,

Elvis Dowson


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gccas was part of pre-2.0 versions of LLVM.  LLVM and LLVM-GCC are  
version-locked.  You won't be able to build an llvm-gcc 1.5 frontend  
against a post-2.0 version of LLVM.

--Owen

On Dec 28, 2008, at 4:08 PM, Elvis Dowson wrote:
> Hi Anton,
> 			Where can I get gccas ? I am running Mac OS X 10.5.6 and I get  
> the following error:
>
> xgcc: installation problem, cannot exec `gccas': No such file or  
> directory
> make[2]: *** [libgcc/./_muldi3.o] Error 1
> make[2]: *** Waiting for unfinished jobs....
> xgcc: installation problem, cannot exec `gccas': No such file or  
> directory
> make[2]: *** [libgcc/./_negdi2.o] Error 1
> make[1]: *** [libgcc.a] Error 2
> make: *** [all-gcc] Error 2
>
> Best regards,
>
> Elvis Dowson
>
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
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2008/12/28 Elvis Dowson <elvis.dowson at mac.com>
> Where can I get gccas ? I am running Mac OS X 10.5.6 and I get the
> following error:
>
gccas is one of the LLVM tools; you have to build them before building
llvm-gcc and you should configure llvm-gcc with the --enable-llvm=[...] flag
unless the LLVM tools are in your PATH.

See http://llvm.org/svn/llvm-project/llvm-gcc-4.2/trunk/README.LLVM for more
details; http://llvm.org/docs/GCCFEBuildInstrs.html is also applicable, even
though it mostly talks about Ada.

Misha
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Thanks!! :-) I managed to get the full environment working. :-)

The solution was to build the llvm tools first and then continue with  
the rest of the build process. I've attached the full procedure below.

Best regards,

Elvis



Procedure

Step 01: Specify environment variables

export LLVM_HOME=$HOME/Tool/llvm-1.5
export LLVM_GCC_HOME=$HOME/Tool/llvm-gcc-1.5
export PATH=$PATH:$ANT_HOME/bin:$LLVM_HOME/install/bin:$LLVM_GCC_HOME/ 
install/bin:

Step 02: Configure, build and install llvm tools. This will build the  
gccas and gccld tools required to build the llvm-gcc front end.

$ ../src/configure --enable-checking --prefix=`pwd`/../install -- 
disable-bootstrap --disable-multilib
$ make tools-only $BUILDOPTIONS -j 2 ENABLE_OPTIMIZED=0
$ make install

The llvm tools will be installed into the $LLVM_HOME/install/bin  
directory.

Step 03:  Configure, build and install llvm-gcc-1.5.

llvm-gcc-1.5
	/	build
	/	install
	/	src

Type the following commands to build a debug version of llvm-gcc

$ cd build
$ export TARGETOPTIONS='--with-arch=i386'
$ export TRIPLE=i386-apple-darwin9.6.0
$ export BUILDOPTIONS=LLVM_VERSION_INFO=1.5
$ ../src/configure --enable-checking --with-gxx-include-dir=/usr/ 
include/c++/4.0.0 --build=$TRIPLE --host=$TRIPLE --target=$TRIPLE -- 
prefix=`pwd`/../install --program-prefix=llvm- --enable-languages=c,c++ 
$EXTRALANGS $TARGETOPTIONS --disable-bootstrap --disable-multilib
$ make $BUILDOPTIONS -j 2 ENABLE_OPTIMIZED=0
$ make install

$ ln -sf /usr/lib/libstdc++.6.dylib `pwd`/../install/lib
$ ln -sf /usr/lib/libstdc++.6.dylib `pwd`/../install/lib/libstdc++.dylib

The last step, "ln -sf ..." is required so that the linker (collect2)
can find libstdc++ ('-lstdc++') and subsequently link C++ executables  
correctly.

Type the following command to see if llvm-gcc is correctly installed:

$ llvm-gcc -v
$ gcc version 3.4-llvm 20030924 (experimental)


Step 04: Configure, build and install llvm-1.5.

Directory structure:

llvm-1.5
	/	build
	/	src

The following commands will build a debug version of llvm.

$ cd build
$ ../src/configure
$ make -j 2 ENABLE_OPTIMIZED=0

To build a release version of llvm, type the following command

$ make ENABLE_OPTIMIZED=1

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