[LLVMdev] configure with clang vs gcc

[reed kotler]

On 02/24/2014 04:19 PM, Eric Christopher wrote:
> On Mon, Feb 24, 2014 at 4:14 PM, reed kotler <rkotler at mips.com> wrote:
>> I'm trying to build a native hosted mips compiler on ubuntu x86.
>>
>> When I run configure with clang/llvm as the compiler, configure thinks that
>> zlib is present and that valgrind is.
>>
>> But later on the make it cannot find zlib.h. If I tell it to not do
>> compression, then it does not look for
>> zlib.h but dies looking for valgrind, even if I tell it to disable-valgrind.
>>
>> If I configure using gcc-mips, it decides on it's own that zlib.h is not
>> available.
>> It also decides that valgrind is not available.
>>
>> Why the difference?
>>
> How are you configuring?
>
> -eric
>

(You can see our wiki page 
https://dmz-portal.mips.com/wiki/Build_mips_clang_llvm )

Basically:

$ OPT="-target mipsel-linux-gnu -mips32r2 -gcc-toolchain ${MIPS}"


$ $CLANG_SRC/configure \
     --prefix=$CLANG_INSTALL \
     --build=i686-pc-linux-gnu \
     --host=mipsel-linux-gnu \
     --enable-optimized \                  # turn on optimization
     "--with-extra-options=${OPT}" \
     "--with-extra-ld-options=${OPT}" \
     CC=$CLANG_TC/bin/clang \
     CXX=$CLANG_TC/bin/clang++ \
     RANLIB=$MIPS/bin/mips-linux-gnu-ranlib \
     AR=$MIPS/bin/mips-linux-gnu-ar \
     build_alias=i686-unknown-linux-gnu host_alias=mipsel-linux-gnu


>> Any ideas?
>>
>> Reed
>>
>>
>>
>>
>>
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