Presume ISO C90 functions are always available

* configure.ac: don't check for rename, setlocale, system, memcpy,
   and strcoll
* libguile/i18n.c [HAVE_SETLOCALE] (setlocale): remove static setlocale
    Don't use HAVE_SETLOCALE
* libguile/posix.c: include <locale.h>, remove HAVE_SETLOCALE
  (scm_setlocale): always include. remove HAVE_SETLOCALE
* libguile/simpos.c (scm_system): always include. remove HAVE_SYSTEM

4 files changed, 5 insertions, 21 deletions

diff --git a/configure.ac b/configure.ac
index 14aaf2055..ac2f91f57 100644
--- a/configure.ac
+++ b/configure.ac
@@ -522,13 +522,13 @@ AC_CHECK_HEADERS([crt_externs.h])
 AC_CHECK_FUNCS([DINFINITY DQNAN cexp chsize clog clog10 ctermid         \
   fesetround ftime ftruncate fchown fchmod getcwd geteuid getsid        \
   gettimeofday getuid getgid gmtime_r ioctl lstat mkdir mkdtemp mknod   \
-  nice readlink rename rmdir setegid seteuid                            \
-  setlocale setuid setgid setpgid setsid sigaction siginterrupt stat64  \
+  nice readlink rmdir setegid seteuid                            \
+  setuid setgid setpgid setsid sigaction siginterrupt stat64  \
   strptime symlink sync sysconf tcgetpgrp tcsetpgrp uname waitpid       \
-  strdup system usleep atexit on_exit chown link fcntl ttyname getpwent \
+  strdup usleep on_exit chown link fcntl ttyname getpwent \
   getgrent kill getppid getpgrp fork setitimer getitimer strchr strcmp  \
-  index bcopy memcpy rindex truncate isblank _NSGetEnviron              \
-  strcoll strcoll_l strtod_l strtol_l newlocale uselocale utimensat     \
+  index bcopy rindex truncate isblank _NSGetEnviron              \
+  strcoll_l strtod_l strtol_l newlocale uselocale utimensat     \
   sched_getaffinity sched_setaffinity sendfile pipe2])
 
 # The newlib C library uses _NL_ prefixed locale langinfo constants.
diff --git a/libguile/i18n.c b/libguile/i18n.c
index 52a808041..a56852248 100644
--- a/libguile/i18n.c
+++ b/libguile/i18n.c
@@ -75,15 +75,6 @@
 /* Use Gnulib's header, which also provides `nl_item' & co.  */
 #include <langinfo.h>
 
-#ifndef HAVE_SETLOCALE
-static inline char *
-setlocale (int category, const char *name)
-{
-  errno = ENOSYS;
-  return NULL;
-}
-#endif
-
 /* The newlib C library has alternative names for locale constants.  */
 #if HAVE_DECL__NL_NUMERIC_GROUPING
 #define INT_CURR_SYMBOL    _NL_MONETARY_INT_CURR_SYMBOL
diff --git a/libguile/posix.c b/libguile/posix.c
index 475312c2a..8471818ad 100644
--- a/libguile/posix.c
+++ b/libguile/posix.c
@@ -112,9 +112,7 @@
 #include <sys/utsname.h>
 #endif
 
-#ifdef HAVE_SETLOCALE
 #include <locale.h>
-#endif
 
 #if (defined HAVE_NEWLOCALE) && (defined HAVE_STRCOLL_L)
 # define USE_GNU_LOCALE_API
@@ -1833,8 +1831,6 @@ SCM_DEFINE (scm_putenv, "putenv", 1, 0, 0,
    details.  */
 scm_i_pthread_mutex_t scm_i_locale_mutex = SCM_I_PTHREAD_MUTEX_INITIALIZER;
 
-#ifdef HAVE_SETLOCALE
-
 SCM_DEFINE (scm_setlocale, "setlocale", 1, 1, 0,
             (SCM category, SCM locale),
 	    "If @var{locale} is omitted, return the current value of the\n"
@@ -1898,7 +1894,6 @@ SCM_DEFINE (scm_setlocale, "setlocale", 1, 1, 0,
   return scm_from_locale_string (rv);
 }
 #undef FUNC_NAME
-#endif /* HAVE_SETLOCALE */
 
 #ifdef HAVE_MKNOD
 SCM_DEFINE (scm_mknod, "mknod", 4, 0, 0,
diff --git a/libguile/simpos.c b/libguile/simpos.c
index 2a292eeff..537f194b9 100644
--- a/libguile/simpos.c
+++ b/libguile/simpos.c
@@ -36,7 +36,6 @@
 
 
 
-#ifdef HAVE_SYSTEM
 SCM_DEFINE (scm_system, "system", 0, 1, 0,
            (SCM cmd),
 	    "Execute @var{cmd} using the operating system's \"command\n"
@@ -67,7 +66,6 @@ SCM_DEFINE (scm_system, "system", 0, 1, 0,
   return scm_from_int (rv);
 }
 #undef FUNC_NAME
-#endif /* HAVE_SYSTEM */
 
 
 SCM_DEFINE (scm_getenv, "getenv", 1, 0, 0,