[LLVMdev] llvm-gcc and -march

[Eric Christopher]

Still nothing here:

[yendi:~] echristo% llvm-gcc -march=nocona foo.c -S -arch x86_64
[yendi:~] echristo% 

So, perhaps you could send more information? Or bug the mac ports people.

-eric

On Aug 22, 2011, at 2:44 PM, Nichols A. Romero wrote:

> This comes up when trying to compile Valgrind, here is the full compile line:
> 
> /opt/local/bin/llvm-gcc-4.2 -Wbad-function-cast -Wcast-qual
> -Wcast-align -fstrict-aliasing \
> 	       -arch x86_64 -O2 -g -Wall -Wmissing-prototypes -Wshadow
> -Wpointer-arith -Wstrict-prototypes -Wmissing-declarations
> -Wno-format-zero-length -fno-strict-aliasing -mmacosx-version-min=10.5
> -fno-stack-protector \
> 				-O -S -o auxprogs/genoffsets.s \
> 					 auxprogs/genoffsets.c
> 
> On Mon, Aug 22, 2011 at 4:39 PM, Eli Friedman <eli.friedman at gmail.com> wrote:
>> On Mon, Aug 22, 2011 at 2:34 PM, Nichols A. Romero <naromero at gmail.com> wrote:
>>> Hi,
>>> 
>>> I apologize if I am not asking on the right mailing list.
>>> 
>>> I am using the llvm-gcc4.2 from MacPorts.
>>> https://trac.macports.org/browser/trunk/dports/lang/llvm-gcc42/Portfile
>>> 
>>> llvm-gcc does not seem to accept the -march flag. This is the error,
>>> I got:
>>> 
>>> cc1: error: unrecognized command line option "-march"
>>> 
>>> The port developer asked me to find out if this is a known issue.
>> 
>> llvm-gcc 4.2 should support almost exactly the same command-line
>> options as gcc 4.2, including -march.  How exactly are you getting
>> this error?
>> 
>> -Eli
>>