https://src.fedoraproject.org/rpms/guile/c/7fcab121be7d2bc8e3e48d0da476127b86cec90c?branch=rawhide

These issues have already been fixed upstream via gnulib imports:

commit 7e641595cd9b45ce7339e21c20a8ab81af9278f6
Author: Andy Wingo <wingo@pobox.com>
Date:   Wed Feb 15 21:41:24 2017 +0100

    Update Gnulib to v0.1-1157-gb03f418.

commit a91b95cca2d397c84f8b9bbd602d40209a7092ce
Author: Andy Wingo <wingo@pobox.com>
Date:   Wed Jan 20 21:52:54 2021 +0100

    Update Gnulib to v0.1-4379-g2ef5a9b4b

    Also bump required autoconf version to 2.64, as required by Gnulib.

--- a/m4/link.m4
+++ b/m4/link.m4
@@ -22,6 +22,7 @@ AC_DEFUN([gl_FUNC_LINK],
        AC_RUN_IFELSE(
          [AC_LANG_PROGRAM(
            [[#include <unistd.h>
+	   #include <stdio.h>
            ]],
            [[int result = 0;
              if (!link ("conftest.a", "conftest.b/"))
--- a/m4/round.m4
+++ b/m4/round.m4
@@ -57,7 +57,7 @@ int main()
     * (double) (1U << ((DBL_MANT_DIG + 3) / 5))
     * (double) (1U << ((DBL_MANT_DIG + 4) / 5));
   volatile double x = 0.5 - 0.5 / TWO_MANT_DIG;
-  exit (x < 0.5 && round (x) != 0.0);
+  return x < 0.5 && round (x) != 0.0;
 }]])], [gl_cv_func_round_works=yes], [gl_cv_func_round_works=no],
         [case "$host_os" in
            netbsd* | aix*) gl_cv_func_round_works="guessing no";;


Avoid implicit ints in the guile_cv_localtime_cache check.  It cause
the check to always fail with strict(er) C99 compilers that do not
support implicit int.

Submitted upstream:

  <https://lists.gnu.org/archive/html/bug-guile/2022-12/msg00017.html>
  <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=60022>

--- a/configure.ac
+++ b/configure.ac
@@ -1086,7 +1086,7 @@ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
 # include <stdlib.h>
 #endif
 extern char **environ;
-unset_TZ ()
+int unset_TZ ()
 {
   char **from, **to;
   for (to = from = environ; (*to = *from); from++)
@@ -1095,7 +1095,7 @@ unset_TZ ()
 }
 char TZ_GMT0[] = "TZ=GMT0";
 char TZ_PST8[] = "TZ=PST8";
-main()
+int main()
 {
   time_t now = time ((time_t *) 0);
   int hour_GMT0, hour_unset;