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AX_FUNC_POSIX_MEMALIGN
Some versions of posix_memalign (notably glibc 2.2.5) incorrectly apply their power-of-two check to the size argument, not the alignment argument. AX_FUNC_POSIX_MEMALIGN defines HAVE_POSIX_MEMALIGN if the power-of-two check is correctly applied to the alignment argument.
http://autoconf-archive.cryp.to/ax_func_posix_memalign.m4
Copyright © 2008 Scott Pakin <pakin@uiuc.edu>
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