nexmon – Blame information for rev 1
?pathlinks?
Rev | Author | Line No. | Line |
---|---|---|---|
1 | office | 1 | # signal_h.m4 serial 16 |
2 | dnl Copyright (C) 2007-2011 Free Software Foundation, Inc. |
||
3 | dnl This file is free software; the Free Software Foundation |
||
4 | dnl gives unlimited permission to copy and/or distribute it, |
||
5 | dnl with or without modifications, as long as this notice is preserved. |
||
6 | |||
7 | AC_DEFUN([gl_SIGNAL_H], |
||
8 | [ |
||
9 | AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) |
||
10 | AC_REQUIRE([gl_CHECK_TYPE_SIGSET_T]) |
||
11 | gl_NEXT_HEADERS([signal.h]) |
||
12 | |||
13 | # AIX declares sig_atomic_t to already include volatile, and C89 compilers |
||
14 | # then choke on 'volatile sig_atomic_t'. C99 requires that it compile. |
||
15 | AC_CHECK_TYPE([volatile sig_atomic_t], [], |
||
16 | [HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=0], [[ |
||
17 | #include <signal.h> |
||
18 | ]]) |
||
19 | |||
20 | AC_REQUIRE([AC_TYPE_UID_T]) |
||
21 | |||
22 | dnl Persuade glibc <signal.h> to define sighandler_t. |
||
23 | AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) |
||
24 | AC_CHECK_TYPE([sighandler_t], [], [HAVE_SIGHANDLER_T=0], [[ |
||
25 | #include <signal.h> |
||
26 | ]]) |
||
27 | |||
28 | dnl Check for declarations of anything we want to poison if the |
||
29 | dnl corresponding gnulib module is not in use. |
||
30 | gl_WARN_ON_USE_PREPARE([[#include <signal.h> |
||
31 | ]], [pthread_sigmask sigaction |
||
32 | sigaddset sigdelset sigemptyset sigfillset sigismember |
||
33 | sigpending sigprocmask]) |
||
34 | ]) |
||
35 | |||
36 | AC_DEFUN([gl_CHECK_TYPE_SIGSET_T], |
||
37 | [ |
||
38 | AC_CHECK_TYPES([sigset_t], |
||
39 | [gl_cv_type_sigset_t=yes], [gl_cv_type_sigset_t=no], |
||
40 | [[ |
||
41 | #include <signal.h> |
||
42 | /* Mingw defines sigset_t not in <signal.h>, but in <sys/types.h>. */ |
||
43 | #include <sys/types.h> |
||
44 | ]]) |
||
45 | if test $gl_cv_type_sigset_t != yes; then |
||
46 | HAVE_SIGSET_T=0 |
||
47 | fi |
||
48 | ]) |
||
49 | |||
50 | AC_DEFUN([gl_SIGNAL_MODULE_INDICATOR], |
||
51 | [ |
||
52 | dnl Use AC_REQUIRE here, so that the default settings are expanded once only. |
||
53 | AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) |
||
54 | gl_MODULE_INDICATOR_SET_VARIABLE([$1]) |
||
55 | dnl Define it also as a C macro, for the benefit of the unit tests. |
||
56 | gl_MODULE_INDICATOR_FOR_TESTS([$1]) |
||
57 | ]) |
||
58 | |||
59 | AC_DEFUN([gl_SIGNAL_H_DEFAULTS], |
||
60 | [ |
||
61 | GNULIB_PTHREAD_SIGMASK=0; AC_SUBST([GNULIB_PTHREAD_SIGMASK]) |
||
62 | GNULIB_SIGNAL_H_SIGPIPE=0; AC_SUBST([GNULIB_SIGNAL_H_SIGPIPE]) |
||
63 | GNULIB_SIGPROCMASK=0; AC_SUBST([GNULIB_SIGPROCMASK]) |
||
64 | GNULIB_SIGACTION=0; AC_SUBST([GNULIB_SIGACTION]) |
||
65 | dnl Assume proper GNU behavior unless another module says otherwise. |
||
66 | HAVE_POSIX_SIGNALBLOCKING=1; AC_SUBST([HAVE_POSIX_SIGNALBLOCKING]) |
||
67 | HAVE_PTHREAD_SIGMASK=1; AC_SUBST([HAVE_PTHREAD_SIGMASK]) |
||
68 | HAVE_SIGSET_T=1; AC_SUBST([HAVE_SIGSET_T]) |
||
69 | HAVE_SIGINFO_T=1; AC_SUBST([HAVE_SIGINFO_T]) |
||
70 | HAVE_SIGACTION=1; AC_SUBST([HAVE_SIGACTION]) |
||
71 | HAVE_STRUCT_SIGACTION_SA_SIGACTION=1; |
||
72 | AC_SUBST([HAVE_STRUCT_SIGACTION_SA_SIGACTION]) |
||
73 | HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=1; |
||
74 | AC_SUBST([HAVE_TYPE_VOLATILE_SIG_ATOMIC_T]) |
||
75 | HAVE_SIGHANDLER_T=1; AC_SUBST([HAVE_SIGHANDLER_T]) |
||
76 | REPLACE_PTHREAD_SIGMASK=0; AC_SUBST([REPLACE_PTHREAD_SIGMASK]) |
||
77 | ]) |