kc3-lang/gnulib/m4/signal_h.m4

• Show log

  Commit

• Hash : 182afcba
  Author :
  Date : 2020-02-22T20:57:30
  

  Use 'restrict' in all POSIX function declarations.
  
  * lib/iconv.in.h (iconv): Use 'restrict'.
  * lib/inttypes.in.h (strtoimax, strtoumax): Likewise.
  * lib/monetary.in.h (strfmon_l): Likewise.
  * lib/pthread.in.h (pthread_create, pthread_mutex_init,
  pthread_mutexattr_gettype, pthread_mutexattr_getrobust,
  pthread_mutex_timedlock, pthread_rwlock_init,
  pthread_rwlock_timedrdlock, pthread_rwlock_timedwrlock,
  pthread_cond_init, pthread_cond_wait, pthread_cond_timedwait): Likewise.
  * lib/search.in.h (tdelete): Likewise.
  * lib/signal.in.h (pthread_sigmask, sigprocmask): Likewise.
  * lib/stdio.in.h (dprintf, fgets, fopen, fprintf, fputs, fread, freopen,
  fscanf, fwrite, getdelim, getline, printf, scanf, snprintf, sprintf,
  vdprintf, vfprintf, vfscanf, vprintf, vscanf, vsnprintf, vsprintf):
  Likewise.
  * lib/stdlib.in.h (mbtowc, realpath, strtod, strtold, strtoll,
  strtoull): Likewise.
  * lib/string.in.h (strncat): Likewise.
  * lib/sys_socket.in.h (accept, getpeername, getsockname, getsockopt,
  recvfrom): Likewise.
  * lib/sys_stat.in.h (fstatat, lstat, stat): Likewise.
  * lib/time.in.h (strftime): Likewise.
  * lib/unistd.in.h (readlink, readlinkat): Likewise.
  * lib/wchar.in.h (mbrtowc, mbrlen, mbsrtowcs, mbsnrtowcs, wcrtomb,
  wcsrtombs, wcsnrtombs, wmemcpy, wcscpy, wcpcpy, wcsncpy, wcpncpy,
  wcscat, wcsncat, wcsxfrm, wcsstr, wcstok, wcsftime): Likewise.
  * m4/iconv_h.m4 (gl_ICONV_H): Require AC_C_RESTRICT.
  * m4/inttypes.m4 (gl_INTTYPES_INCOMPLETE): Likewise.
  * m4/monetary_h.m4 (gl_MONETARY_H): Likewise.
  * m4/search_h.m4 (gl_SEARCH_H): Likewise.
  * m4/signal_h.m4 (gl_SIGNAL_H): Likewise.
  * m4/stdio_h.m4 (gl_STDIO_H): Likewise.
  * m4/stdlib_h.m4 (gl_STDLIB_H): Likewise.
  * m4/sys_socket_h.m4 (gl_HEADER_SYS_SOCKET): Likewise.
  * m4/sys_stat_h.m4 (gl_HEADER_SYS_STAT_H): Likewise.
  * m4/unistd_h.m4 (gl_UNISTD_H): Likewise.
  * m4/wchar_h.m4 (gl_WCHAR_H): Likewise.
  * m4/string_h.m4 (gl_HEADER_STRING_H_BODY): Make consistent with the
  other *_h.m4 files.
  * m4/time_h.m4 (gl_HEADER_TIME_H): Likewise.
  

Download

• m4/signal_h.m4

• # signal_h.m4 serial 19
  dnl Copyright (C) 2007-2020 Free Software Foundation, Inc.
  dnl This file is free software; the Free Software Foundation
  dnl gives unlimited permission to copy and/or distribute it,
  dnl with or without modifications, as long as this notice is preserved.
  
  AC_DEFUN([gl_SIGNAL_H],
  [
    AC_REQUIRE([gl_SIGNAL_H_DEFAULTS])
    AC_REQUIRE([gl_CHECK_TYPE_SIGSET_T])
    gl_NEXT_HEADERS([signal.h])
  
  # AIX declares sig_atomic_t to already include volatile, and C89 compilers
  # then choke on 'volatile sig_atomic_t'.  C99 requires that it compile.
    AC_CHECK_TYPE([volatile sig_atomic_t], [],
      [HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=0], [[
  #include <signal.h>
      ]])
  
    dnl Ensure the type pid_t gets defined.
    AC_REQUIRE([AC_TYPE_PID_T])
  
    AC_REQUIRE([AC_TYPE_UID_T])
  
    dnl Persuade glibc <signal.h> to define sighandler_t.
    AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
    AC_CHECK_TYPE([sighandler_t], [], [HAVE_SIGHANDLER_T=0], [[
  #include <signal.h>
      ]])
  
    dnl Check for declarations of anything we want to poison if the
    dnl corresponding gnulib module is not in use.
    gl_WARN_ON_USE_PREPARE([[#include <signal.h>
      ]], [pthread_sigmask sigaction
      sigaddset sigdelset sigemptyset sigfillset sigismember
      sigpending sigprocmask])
  
    AC_REQUIRE([AC_C_RESTRICT])
  ])
  
  AC_DEFUN([gl_CHECK_TYPE_SIGSET_T],
  [
    AC_CHECK_TYPES([sigset_t],
      [gl_cv_type_sigset_t=yes], [gl_cv_type_sigset_t=no],
      [[
        #include <signal.h>
        /* Mingw defines sigset_t not in <signal.h>, but in <sys/types.h>.  */
        #include <sys/types.h>
      ]])
    if test $gl_cv_type_sigset_t != yes; then
      HAVE_SIGSET_T=0
    fi
  ])
  
  AC_DEFUN([gl_SIGNAL_MODULE_INDICATOR],
  [
    dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
    AC_REQUIRE([gl_SIGNAL_H_DEFAULTS])
    gl_MODULE_INDICATOR_SET_VARIABLE([$1])
    dnl Define it also as a C macro, for the benefit of the unit tests.
    gl_MODULE_INDICATOR_FOR_TESTS([$1])
  ])
  
  AC_DEFUN([gl_SIGNAL_H_DEFAULTS],
  [
    GNULIB_PTHREAD_SIGMASK=0;    AC_SUBST([GNULIB_PTHREAD_SIGMASK])
    GNULIB_RAISE=0;              AC_SUBST([GNULIB_RAISE])
    GNULIB_SIGNAL_H_SIGPIPE=0;   AC_SUBST([GNULIB_SIGNAL_H_SIGPIPE])
    GNULIB_SIGPROCMASK=0;        AC_SUBST([GNULIB_SIGPROCMASK])
    GNULIB_SIGACTION=0;          AC_SUBST([GNULIB_SIGACTION])
    dnl Assume proper GNU behavior unless another module says otherwise.
    HAVE_POSIX_SIGNALBLOCKING=1; AC_SUBST([HAVE_POSIX_SIGNALBLOCKING])
    HAVE_PTHREAD_SIGMASK=1;      AC_SUBST([HAVE_PTHREAD_SIGMASK])
    HAVE_RAISE=1;                AC_SUBST([HAVE_RAISE])
    HAVE_SIGSET_T=1;             AC_SUBST([HAVE_SIGSET_T])
    HAVE_SIGINFO_T=1;            AC_SUBST([HAVE_SIGINFO_T])
    HAVE_SIGACTION=1;            AC_SUBST([HAVE_SIGACTION])
    HAVE_STRUCT_SIGACTION_SA_SIGACTION=1;
                                 AC_SUBST([HAVE_STRUCT_SIGACTION_SA_SIGACTION])
    HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=1;
                                 AC_SUBST([HAVE_TYPE_VOLATILE_SIG_ATOMIC_T])
    HAVE_SIGHANDLER_T=1;         AC_SUBST([HAVE_SIGHANDLER_T])
    REPLACE_PTHREAD_SIGMASK=0;   AC_SUBST([REPLACE_PTHREAD_SIGMASK])
    REPLACE_RAISE=0;             AC_SUBST([REPLACE_RAISE])
  ])
  

Download