Silent warnings

compute/pzgebrd.c

compute/zgesvd.c

control/auxiliary.h

testing/testing_zgemm.c

testing/testing_zgesvd.c

testing/testing_zhemm.c

testing/testing_zher2k.c

testing/testing_zherk.c

testing/testing_zlanhe.c

testing/testing_zlantr.c

testing/testing_zpoinv.c

testing/testing_zposv.c

testing/testing_zpotrf.c

testing/testing_zpotri.c

testing/testing_zpotrs.c

testing/testing_zsymm.c

testing/testing_zsyr2k.c

testing/testing_zsyrk.c

testing/testing_ztrmm.c

testing/testing_ztrsm.c