1 files changed, 0 insertions, 83 deletions
diff --git a/src/gl/m4/signal_h.m4 b/src/gl/m4/signal_h.m4
deleted file mode 100644
index bcfd7b4be3..0000000000
--- a/src/gl/m4/signal_h.m4
+++ /dev/null
@@ -1,83 +0,0 @@
-# signal_h.m4 serial 18
-dnl Copyright (C) 2007-2016 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_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])
-])