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HP-UX Installation Notes (obsolete)

The following are not necessary with recent versions of FFTW, which should automatically guess the compiler flags described below. Please let us know if you have any problems installing FFTW on HP-UX.

Compiler Flags

Marc Lefranc informed us that the C compiler in HP-UX 10.10 is not ANSI-compatible by default; this confuses the configure scripts and breaks the compilation.

To fix this, he suggests the following sequence of instructions to configure and compile FFTW:

setenv CC "cc -Ae"
make CFLAGS="-Ae +O3 +Oall"

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