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Diffstat (limited to 'gnu/lib/libf2c/libU77/README')
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1 files changed, 40 insertions, 0 deletions
diff --git a/gnu/lib/libf2c/libU77/README b/gnu/lib/libf2c/libU77/README new file mode 100644 index 00000000000..bfedb90bd97 --- /dev/null +++ b/gnu/lib/libf2c/libU77/README @@ -0,0 +1,40 @@ +19970811 -*-text-*- + +g77 libU77 +---------- + +This directory contains an implementation of most of the `traditional' +Unix libU77 routines, mostly an interface to libc and libm routines +and some extra ones for time and date etc. It's intended for use with +g77, to whose configuration procedure it's currently tied, but should +be compatible with f2c otherwise, if using the same f2c.h. + +The contents of libU77 and its interfaces aren't consistent across +implementations. This one is mostly taken from documentation for (an +old version of) the Convex implementation and the v2 SunPro one. +As of g77 version 0.5.20, most of these routines have been made +into g77 intrinsics. Some routines have a version with a name prefixed +by `vxt', corresponding to the VMS Fortran versions, and these should +be integrated with g77's intrinsics visibility control. + +A few routines are currently missing; in the case of `fork', for +instance, because they're probably not useful, and in the case of +`qsort' and those for stream-based i/o handling, because they need +more effort/research. The configuration should weed out those few +which correspond to facilities which may not be present on some Unix +systems, such as symbolic links. It's unclear whether the interfaces +to the native library random number routines should be retained, since +their implementation is likely to be something one should avoid +assiduously. + +This library has been tested it under SunOS4.1.3 and Irix5.2 and there +has been some feedback from Linux; presumably potential problems lie +mainly with systems with impoverished native C library support which +haven't been properly taken care of with autoconf. + +There's another GPL'd implementation of this stuff which I only found +out about recently (despite having looked) and I haven't yet checked +how they should be amalgamated. + +Dave Love <d.love@dl.ac.uk> Aug '95 +(minor changes by Craig Burley <burley@gnu.org> Aug '97) |