new module 'xstrerror'

Looking for a function which produces the internationalized description of an errno value, with the two additional requirements that - it should be multithread-safe, - it should be easy to use, I didn't find any answer in POSIX or gnulib. https://man7.org/linux/man-pages/man3/strerror.3.html

Re: totalorderl: minor porting fixes

> Don’t assume sizeof (unsigned long long) == 2 * sizeof (unsigned). Thanks. Today 'unsigned int' is uint32_t, and 'unsigned long long' is uint64_t, but who knows whether this will still be the case in 10 years... Bruno

Re: isnan: slightly simplify configuration

Hi Paul, > + if test $gl_cv_func_isnand_no_libm = yes || test "$ISNAND_LIBM"; then This doesn't look right: * If $ISNAND_LIBM is empty, it executes test '' which is invalid in at least some version of 'test'. * If $ISNAND_LIBM is -lm, it executes test -lm which is always

[PATCH 2/3] totalorder: speed up configuration

* m4/totalorder.m4 (gl_FUNC_TOTALORDERF, gl_FUNC_TOTALORDER) (gl_FUNC_TOTALORDERL): Avoid unnecessary call to AC_SEARCH_LIBS, since the information is already available in shell vars. --- ChangeLog| 5 + m4/totalorder.m4 | 15 +++ 2 files changed, 8 insertions(+), 12

[PATCH 1/3] totalorderl: minor porting fixes

* lib/totalorderl.c (LDBL_SIGNBIT_WORD): Define to -1 if not defined. (totalorderl): Avoid unused local zu by preferring ‘if’ to ‘ifdef’. Don’t assume sizeof (unsigned long long) == 2 * sizeof (unsigned). --- ChangeLog | 7 +++ lib/totalorderl.c | 38

[PATCH 3/3] isnan: slightly simplify configuration

* m4/isnand.m4 (gl_FUNC_ISNAND): * m4/isnanf.m4 (gl_FUNC_ISNANF): * m4/isnanl.m4 (gl_FUNC_ISNANL): Slightly simplify shell ‘if’. This should simplify future changes. --- ChangeLog| 6 ++ m4/isnand.m4 | 5 ++--- m4/isnanf.m4 | 5 ++--- m4/isnanl.m4 | 5 ++--- 4 files changed, 12