Given: scipy-0.6.4 numpy 1.0.4 python 2.5.1 AIX 5.3 xlc v8 xlf v10 essel 4.2 lapack 3.1.1 with CCI Problem: During the scipy build - python setyp.py build - the following error shows up: .... building 'scipy.lib.blas.fblas' extension compiling C sources C compiler: cc_r -DNDEBUG -O2 -qmaxmem=-1 compile options: '-DNO_ATLAS_INFO=1 -Ibuild/src.aix-5.3-2.5 -I/usr/local/lib/python2.5/site-packages/numpy/core/include -I/usr/local/include/python2.5 -c' compiling Fortran sources Fortran f77 compiler: /usr/bin/xlf -qextname -O5 Fortran f90 compiler: /usr/bin/xlf90 -qextname -O5 Fortran fix compiler: /usr/bin/xlf90 -qfixed -qextname -O5 compile options: '-DNO_ATLAS_INFO=1 -Ibuild/src.aix-5.3-2.5 -I/usr/local/lib/python2.5/site-packages/numpy/core/include -I/usr/local/include/python2.5 -c' xlf:f77: build/src.aix-5.3-2.5/build/src.aix-5.3-2.5/scipy/lib/blas/fblas-f2pywrappers.f /usr/bin/xlf: 1501-210 command option NO_ATLAS_INFO=1 contains an incorrect subargument /usr/bin/xlf: 1501-210 command option NO_ATLAS_INFO=1 contains an incorrect subargument

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>>>>>>>>>>>> error: Command "/usr/bin/xlf -qextname -O5 -DNO_ATLAS_INFO=1 -Ibuild/src.aix-5.3-2.5 -I/usr/local/lib/python2.5/site-packages/numpy/core/include -I/usr/local/include/python2.5 -c -c build/src.aix-5.3-2.5/build/src.aix-5.3-2.5/scipy/lib/blas/fblas-f2pywrappers.f -o build/temp.aix-5.3-2.5/build/src.aix-5.3-2.5/build/src.aix-5.3-2.5/scipy/lib/blas/fblas-f2pywrappers.o" failed with exit status 40 <<<<<<<<<<<<<<<<<<

I found a reference regarding the IBM XLF compiler running on mac http://projects.scipy.org/pipermail/scipy-user/2004-May/002884.html where Pearu says: ... it turns out that -D/-U options to xlf compiler are not for defining cpp macros... The following information from the xlf Compiler says regarding the -D option : ... -D Specifies whether the compiler compiles fixed source form lines with a D in column 1 or treats them as comments. Please note that in order to pass C-style -D macro definitions to the C preprocessor (e.g. compiling a file that ends with .F) use the -W option. For example: -WF,-DDEFINE_THIS -D is the short form of -qdlines ... -U Makes the compiler case-sensitive to identifier names. By default the compiler interprets all names as if they were lower-case. Solution: Changeing the Command line from : /usr/bin/xlf -qextname -O5 -DNO_ATLAS_INFO=1 ....../fblas-f2pywrappers.o to /usr/bin/xlf -qextname -O5 -WF,-DNO_ATLAS_INFO=1 .... /fblas-f2pywrappers.o allowed the command line to succed without an error. But i do not know if the -WF,DNO_ATLAS_INFO=1 will change the program logic nor where to change ( in case the -WF, is the solution ) this permanently. The only reference i found regarding -DNO_ATLAS_INFO=1 was within the file: ../site-packages/numpy/distutils/system_info.py tia Hajo