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Description of problem:
Running "rpmbuild -ba --target ppc glibc.spec" on PowerPC (Mac mini ["G4"]) shows these errors in the internal testcases:
-----
testing float (without inline functions)
Failure: Test: Real part of: cpow (2 + 3 i, 4 + 0 i) == -119.0 - 120.0 i
Result:
 is:         -1.18999961853027343750e+02  -0x1.dbfff600000000000000p+6
 should be:  -1.19000000000000000000e+02  -0x1.dc000000000000000000p+6
 difference:  3.81469726562500000000e-05   0x1.40000000000000000000p-15
 ulp       :  5.0000
 max.ulp   :  4.0000
Maximal error of real part of: cpow
 is      : 5 ulp
 accepted: 4 ulp
Maximal error of imaginary part of: cpow
 is      : 2 ulp
 accepted: 2 ulp

Test suite completed:
  2599 test cases plus 2384 tests for exception flags executed.
  2 errors occurred.
-----
testing float (inline functions)
Failure: Test: Real part of: cpow (2 + 3 i, 4 + 0 i) == -119.0 - 120.0 i
Result:
 is:         -1.18999961853027343750e+02  -0x1.dbfff600000000000000p+6
 should be:  -1.19000000000000000000e+02  -0x1.dc000000000000000000p+6
 difference:  3.81469726562500000000e-05   0x1.40000000000000000000p-15
 ulp       :  5.0000
 max.ulp   :  4.0000
Maximal error of real part of: cpow
 is      : 5 ulp
 accepted: 4 ulp
Maximal error of imaginary part of: cpow
 is      : 2 ulp
 accepted: 2 ulp

Test suite completed:
  2537 test cases plus 2322 tests for exception flags executed.
  2 errors occurred.
-----

Version-Release number of selected component (if applicable):
glibc-2.3.5-4

How reproducible:
Always

Steps to Reproduce:
1. rpmbuild -ba --target ppc glibc.spec >rpm.out 2>&1 &; wait
2.
3.
  

Actual Results:  Output from rpmbuild shows 2 testcases failed in each of test-float and test-ifloat.

Expected Results:  No [unexpected] errors.

Additional info: