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a100e80fc9
The newlib & libgloss dirs are already generated using autoconf-2.69. To avoid merging new code and/or accidental regeneration using diff versions, leverage config/override.m4 to pin to 2.69 exactly. This matches what gcc/binutils/gdb are already doing. The README file already says to use autoconf-2.69. To accomplish this, it's just as simple as adding -I flags to the top-level config/ dir when running aclocal. This is because the override.m4 file overrides AC_INIT to first require the specific autoconf version before calling the real AC_INIT.
This directory was an experiment to use floating-point operations to implement the math library when a processor had a floating-point instruction set. The experiment was a failure in that some of the algorithms chosen (e.g. recursive algorithms for sin/cos, etc..) are too simple and do not provide proper accuracy nor handle very large or very small inputs adequately. The code is considered moth-balled. The stable math library routines can be found in libm/math and the configuration option to use this has been removed. If you wish to experiment with the concept, please feel free and report back if you have major improvements.