strtold: New module. * lib/stdlib.in.h (strtold): New declaration. * lib/strtold.c: New file. * lib/strtod.c: Consider USE_LONG_DOUBLE. (STRTOD, LDEXP, HAVE_UNDERLYING_STRTOD, DOUBLE, MIN, MAX, L_, USE_LDEXP): New macros. (LDEXP, scale_radix_exp, parse_number, STRTOD): Adapt for USE_LONG_DOUBLE. (underlying_strtod): Remove function. Replace with some macros. Re-add the code for a missing underlying function that was removed on 2013-02-19. * m4/strtold.m4: New file. * m4/stdlib_h.m4 (gl_STDLIB_H): Test whether strtold is declared. (gl_STDLIB_H_DEFAULTS): Initialize GNULIB_STRTOLD, HAVE_STRTOLD, REPLACE_STRTOLD. * modules/stdlib (Makefile.am): Substitute GNULIB_STRTOLD, HAVE_STRTOLD, REPLACE_STRTOLD. * modules/strtold: New file. * doc/posix-functions/strtold.texi: Document the new module.

Description:
Character set conversion of strings with error handling, uses iconv.

Files:
lib/striconveh.h
lib/striconveh.c
lib/iconveh.h

Depends-on:
stdbool
iconv
iconv_open
unistr/u8-prev
unistr/u8-mbtouc-unsafe
unistr/u8-mbtouc
unistr/u8-mbtoucr
unistr/u8-uctomb
strdup
c-strcase
c-strcaseeq
memmove

configure.ac:
if test $gl_cond_libtool = false; then
  gl_ltlibdeps="$gl_ltlibdeps $LTLIBICONV"
  gl_libdeps="$gl_libdeps $LIBICONV"
fi

Makefile.am:
lib_SOURCES += striconveh.h striconveh.c
if GL_COND_LIBTOOL
lib_LDFLAGS += $(LTLIBICONV)
endif

Include:
"striconveh.h"

Link:
$(LTLIBICONV) when linking with libtool, $(LIBICONV) otherwise

License:
LGPLv2+

Maintainer:
all