This is needed on HP-UX 11.11 with GCC 4.24; see Bruno Haible's report
<http://lists.gnu.org/archive/html/bug-gnulib/2011-06/msg00154.html>.
* lib/ftoastr.c (STRTOF) [LENGTH == 1]: Use strtof only if HAVE_STRTOF.
* modules/ftoastr (configure.ac): Check for strtof.
This is so that a program like Emacs, which needs only dtoastr,
does not have to bother with distributing and compiling ftoastr
and ldtoastr.
* MODULES.html.sh: Document these modules (ftoastr wasn't documented).
* modules/dtoastr, modules/ldtoastr: New files.
* modules/ftoastr: Now works just for 'float'.
(Files): Remove lib/dtoastr.c, lib/ldtoastr.c.
(Makefile.am): Remove ftoastr.h (not needed and no effect),
dtoastr.c, ldtoastr.c.
* lib/ftoastr.c (snprintf) [! GNULIB_SNPRINTF_POSIX]:
Implement a subset of snprintf here, by using sprintf safely.
* modules/ftoastr (Depends-on): Remove snprintf.
* lib/ftoastr.c: Also mention Loitsch's draft.
* lib/ftoastr.h: Require WIDTH to be nonnegative. This isn't
needed in the current implementation, but it might simplify
speeding up the code later.
* modules/ftoastr: Depend on snprintf; this improves portability.
Suggested by Bruno Haible in the same email.
Problem reported by Bruno Haible in
<http://lists.gnu.org/archive/html/bug-gnulib/2010-11/msg00242.html>.
* lib/ftoastr.c (STRTOF): Define to strtod if in a pre-C99
environment and strtold (and presumably strtof) are not available.
* modules/ftoastr (Files): Add m4/c-strtod.m4.
(configure.ac): Require gl_C99_STRTOLD.
