gettimeofday: port recent C++ fix to Emacs Without this further patch, Emacs won't build due to the portcheck failing. Also, this simplifies the patch a bit. * lib/time.in.h (localtime, gmtime): Don't replace unless GNULIB_GETTIMEOFDAY. Treat them more like mktime. * lib/time.in.h (localtime, gmtime): * m4/gettimeofday.m4 (gl_GETTIMEOFDAY_REPLACE_LOCALTIME): * m4/time_h.m4 (gl_HEADER_TIME_H_DEFAULTS): * modules/time (time.h): Don't worry about about the possibility of localtime and gmtime being absent; they're present in all C libraries we know about. * m4/time_h.m4 (gl_HEADER_TIME_H_DEFAULTS): Don't assume sys_time is present and has been initialized. Instead, use a hack that should work even if it hasn't been. Don't use a portcheck for gmtime or localtime; this supports the hack. * modules/time (time.h): Substitute GNULIB_GETTIMEOFDAY.

Description:
log1pl() function: natural logarithm of 1 plus argument.

Files:
lib/log1pl.c
m4/log1pl.m4

Depends-on:
math
extensions
log1p           [{ test $HAVE_LOG1PL = 0 || test $REPLACE_LOG1PL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 1]
isnanl          [{ test $HAVE_LOG1PL = 0 || test $REPLACE_LOG1PL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
logl            [{ test $HAVE_LOG1PL = 0 || test $REPLACE_LOG1PL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
roundl          [{ test $HAVE_LOG1PL = 0 || test $REPLACE_LOG1PL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]

configure.ac:
gl_FUNC_LOG1PL
if test $HAVE_LOG1PL = 0 || test $REPLACE_LOG1PL = 1; then
  AC_LIBOBJ([log1pl])
fi
gl_MATH_MODULE_INDICATOR([log1pl])

Makefile.am:

Include:
<math.h>

Link:
$(LOG1PL_LIBM)

License:
LGPL

Maintainer:
Bruno Haible