configure: Remove obsolete and deprecated constructs.

These were uncovered when trying to run `bootstrap.sh` with Autoconf
2.71:

* AC_CONFIG_HEADER() is deprecated in favor of AC_CONFIG_HEADERS().
* AC_HEADER_TIME is obsolete.
* $as_echo is deprecated in favor of AS_ECHO() which requires an update
  to ax_pthread.m4.

Note that the generated artifacts in this commit are from Autoconf 2.69.

Resolves #139
This commit is contained in:
Sean Bright
2023-06-01 18:53:43 +00:00
parent e1f8dac6be
commit a36af23f20
5 changed files with 372 additions and 290 deletions

View File

@@ -1437,9 +1437,6 @@
/* Define to 1 if you have the ANSI C header files. */
#undef STDC_HEADERS
/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
#undef TIME_WITH_SYS_TIME
/* Define to 1 if your <sys/time.h> declares `struct tm'. */
#undef TM_IN_SYS_TIME