strfmon_l: Fix -fsanitize=address finding. * lib/strfmon_l.c: Include <errno.h>, <stdbool.h>, <stdlib.h>, <string.h>. (MAX_ARGS): Renamed from MAX_ARG_WORDS. (directive_t, directives_t): New types. (fmon_parse): New function. (rpl_strfmon_l): Don't call va_arg more often than needed for the format string. Consume 'long double' arguments in places where the format string indicates so. * modules/strfmon_l (Depends-on): Add 'stdbool'.

Files:
tests/test-roundf1.c
tests/test-round2.c
tests/test-roundf2.c
tests/minus-zero.h
tests/infinity.h
tests/nan.h
tests/signature.h
tests/macros.h

Depends-on:
ceilf
floorf
isnanf-nolibm
stdbool
stdint
verify

configure.ac:

Makefile.am:
TESTS += test-roundf1 test-roundf2
check_PROGRAMS += test-roundf1 test-roundf2
test_roundf1_LDADD = $(LDADD) @ROUNDF_LIBM@
test_roundf2_LDADD = $(LDADD) @ROUNDF_LIBM@