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Description of problem:
The test portion of gmp-4.1.4-6.src.rpm fails to properly set the '-mtune' and    
'-march' parameters regardless of the '--target' command line option.   
  
During the build of the program itself, both '-mtune' and '-march' are set  
properly.  However, during the build of the tests, '-march' is set to  
'pentium4' and '-mtune' does not exist. Since '-mtune' is not specified, gcc 
assumes the value for '-mtune' is the same as '-march'. 
 
If the architecture on which the package is being compiled does not support 
some of the more advanced instructions of the pentium4, like sse2, the tests 
will fail, resulting in an inability to build the package. 

Version-Release number of selected component (if applicable):
gmp-4.1.4-6.src.rpm

How reproducible:
Always

Steps to Reproduce:
Simply execute the following command on architectures that do not support the  
more advanced instructions:  
rpmbuild --rebuild gmp-4.1.4-6.src.rpm 

Actual Results:  make attempted to execute instructions not supported by the compiling 
architecture during the tests, which resulted in the tests failing. 

Expected Results:  make should have never built the tests with instruction not supported by the 
architecture, which would have resulted in successful test, and subsequently, 
a successful build. 

Additional info:

I tried it both with the '--target=i686' and without the '--target' command 
line option.  Results were the same both times. 
 
Since the package won't build regardless of the '--target' command line option  
on architectures that don't support the test, I set the priority to normal.