configure.ac needs to be updated, warns about HAVE_SYS_TIME_H
I updated my ghc.nix checkout to include https://github.com/alpmestan/ghc.nix/commit/c1c3dc2c4cba5d842c9f2262d597f5c4f0687626. Now I'm getting a thousand warnings of the form
configure.ac:34: warning: The macro `AC_FOREACH' is obsolete.
configure.ac:34: You should run autoupdate.
./lib/autoconf/general.m4:191: AC_FOREACH is expanded from...
aclocal.m4:43: FP_CHECK_CONSTS is expanded from...
configure.ac:34: the top level
configure.ac:34: warning: The macro `_AC_COMPUTE_INT' is obsolete.
configure.ac:34: You should run autoupdate.
./lib/autoconf/general.m4:3376: _AC_COMPUTE_INT is expanded from...
aclocal.m4:10: FP_COMPUTE_INT is expanded from...
lib/m4sugar/m4sh.m4:692: _AS_IF_ELSE is expanded from...
lib/m4sugar/m4sh.m4:699: AS_IF is expanded from...
./lib/autoconf/general.m4:2249: AC_CACHE_VAL is expanded from...
./lib/autoconf/general.m4:2270: AC_CACHE_CHECK is expanded from...
aclocal.m4:19: FP_CHECK_CONST is expanded from...
aclocal.m4:43: FP_CHECK_CONSTS is expanded from...
configure.ac:34: the top level
configure.ac:24: warning: The macro `AC_HEADER_TIME' is obsolete.
configure.ac:24: You should run autoupdate.
./lib/autoconf/headers.m4:743: AC_HEADER_TIME is expanded from...
aclocal.m4:6: FP_DECL_ALTZONE is expanded from...
configure.ac:24: the top level
configure.ac:111: warning: The macro `AC_FOREACH' is obsolete.
configure.ac:111: You should run autoupdate.
./lib/autoconf/general.m4:191: AC_FOREACH is expanded from...
aclocal.m4:43: FP_CHECK_CONSTS is expanded from...
configure.ac:111: the top level
configure.ac:111: warning: The macro `_AC_COMPUTE_INT' is obsolete.
configure.ac:111: You should run autoupdate.
./lib/autoconf/general.m4:3376: _AC_COMPUTE_INT is expanded from...
aclocal.m4:10: FP_COMPUTE_INT is expanded from...
lib/m4sugar/m4sh.m4:692: _AS_IF_ELSE is expanded from...
lib/m4sugar/m4sh.m4:699: AS_IF is expanded from...
./lib/autoconf/general.m4:2249: AC_CACHE_VAL is expanded from...
./lib/autoconf/general.m4:2270: AC_CACHE_CHECK is expanded from...
aclocal.m4:19: FP_CHECK_CONST is expanded from...
aclocal.m4:43: FP_CHECK_CONSTS is expanded from...
configure.ac:111: the top level
...It suggests to run autoupdate (first time I hear of that). If I do, I get
$ autoupdate
configure.ac:985: warning: Update your code to rely only on HAVE_SYS_TIME_H,
then remove this warning and the obsolete code below it.
All current systems provide time.h; it need not be checked for.
Not all systems provide sys/time.h, but those that do, all allow
you to include it and time.h simultaneously.and I don't know whether we already "rely only on HAVE_SYS_TIME_H".
But maybe someone else knows and can fix the script.