On 1 May, 2011, at 23:26, Irmen de Jong wrote: > Hi, > > I recently ran into a problem installing a module because it needed to > compile an > extension written in C. The compilation failed because the c extension needed > a header > file+lib that gcc could not find. This was caused by the fact that distutils > was adding > a '-isysroot' parameter to the gcc command line that pointed to the 10.4 SDK > location on > my mac. That SDK location doesn't have the particular header file. The issue > is almost > identical to this old message: > http://mail.python.org/pipermail/pythonmac-sig/2009-October/021712.html > > In the meantime, I worked around the problem by replacing the Python.org > python by a > non-framework version that I built from source. Building the extension module > was fine > because it could find the c-library dependency just fine from > /usr/local/include this time. > > This is on a mac mini powerpc, mac os 10.5.8, python.org python 2.7.1 for > ppc+intel. > > My questions are: > It's only recently that I discovered about the -isysroot option and I'm not > sure how to > deal with it. What would be the right way to solve the error I experienced? > Can I compile+install custom c libraries in the SDK location? If so, how > would I do > that? (I only seem to manage to compile+install them into /usr/local)
Adding ['-isysroot', '/'] to extra_compile_flags and extra_link_flags for the extension should work. It worries my a little that the OSX 10.4u SDK causes failures for libraries in /usr/local, that should work just fine, the SDK should only affect files in system locations (/usr/include and /System/Library). Which file couldn't be found? It it a file that's also included in OSX? Can you reproduce the problem with a self-contained example that you can share? Ronald
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