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43 lines
1.2 KiB
43 lines
1.2 KiB
# sigaction.m4 serial 6 |
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dnl Copyright (C) 2008-2011 Free Software Foundation, Inc. |
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dnl This file is free software; the Free Software Foundation |
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dnl gives unlimited permission to copy and/or distribute it, |
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dnl with or without modifications, as long as this notice is preserved. |
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# Determine if sigaction interface is present. |
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AC_DEFUN([gl_SIGACTION], |
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[ |
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AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) |
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AC_CHECK_FUNCS_ONCE([sigaction]) |
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if test $ac_cv_func_sigaction = yes; then |
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AC_CHECK_MEMBERS([struct sigaction.sa_sigaction], , , |
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[[#include <signal.h>]]) |
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if test $ac_cv_member_struct_sigaction_sa_sigaction = no; then |
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HAVE_STRUCT_SIGACTION_SA_SIGACTION=0 |
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fi |
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else |
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HAVE_SIGACTION=0 |
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fi |
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]) |
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# Prerequisites of the part of lib/signal.in.h and of lib/sigaction.c. |
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AC_DEFUN([gl_PREREQ_SIGACTION], |
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[ |
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AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) |
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AC_REQUIRE([AC_C_RESTRICT]) |
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AC_REQUIRE([AC_TYPE_UID_T]) |
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AC_REQUIRE([gl_PREREQ_SIG_HANDLER_H]) |
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AC_CHECK_FUNCS_ONCE([sigaltstack siginterrupt]) |
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AC_CHECK_TYPES([siginfo_t], [], [], [[ |
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#include <signal.h> |
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]]) |
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if test $ac_cv_type_siginfo_t = no; then |
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HAVE_SIGINFO_T=0 |
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fi |
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]) |
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# Prerequisites of lib/sig-handler.h. |
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AC_DEFUN([gl_PREREQ_SIG_HANDLER_H], |
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[ |
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AC_REQUIRE([AC_C_INLINE]) |
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])
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