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unistd: port readlink to Mac OS X 10.3.9 * lib/unistd.in.h (_GL_INCLUDING_UNISTD_H): New macro, to work around self-include problem in Mac OS X 10.3.9 when combined with readlink module. Problem reported by Klaus Zietler in <http://bugs.gnu.org/16825>.
author Paul Eggert <eggert@penguin.cs.ucla.edu>
date Tue, 25 Feb 2014 11:16:27 -0800
parents e9598f93f892
children
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Description:
log2() function: base 2 logarithm.

Files:
lib/log2.c
m4/log2.m4
m4/mathfunc.m4

Depends-on:
math
extensions
isnand          [test $HAVE_LOG2 = 0 || test $REPLACE_LOG2 = 1]
frexp           [test $HAVE_LOG2 = 0 || test $REPLACE_LOG2 = 1]
log             [test $HAVE_LOG2 = 0 || test $REPLACE_LOG2 = 1]

configure.ac:
gl_FUNC_LOG2
if test $HAVE_LOG2 = 0 || test $REPLACE_LOG2 = 1; then
  AC_LIBOBJ([log2])
fi
gl_MATH_MODULE_INDICATOR([log2])

Makefile.am:

Include:
<math.h>

Link:
$(LOG2_LIBM)

License:
LGPL

Maintainer:
Bruno Haible