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author | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-16 18:49:26 +0900 |
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committer | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-30 00:39:06 +0900 |
commit | fcbf63e62c627deae76c1b8cb8c0876c536ed811 (patch) | |
tree | 64cb17de3f41a2b6fef2368028fbd00349946994 /jni/iconv/srcm4/signalblocking.m4 |
Fresh start
Diffstat (limited to 'jni/iconv/srcm4/signalblocking.m4')
-rw-r--r-- | jni/iconv/srcm4/signalblocking.m4 | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/jni/iconv/srcm4/signalblocking.m4 b/jni/iconv/srcm4/signalblocking.m4 new file mode 100644 index 0000000..82b0404 --- /dev/null +++ b/jni/iconv/srcm4/signalblocking.m4 @@ -0,0 +1,42 @@ +# signalblocking.m4 serial 10 +dnl Copyright (C) 2001-2002, 2006-2009 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. + +# Determine available signal blocking primitives. Three different APIs exist: +# 1) POSIX: sigemptyset, sigaddset, sigprocmask +# 2) SYSV: sighold, sigrelse +# 3) BSD: sigblock, sigsetmask +# For simplicity, here we check only for the POSIX signal blocking. +AC_DEFUN([gl_SIGNALBLOCKING], +[ + AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) + signals_not_posix= + AC_EGREP_HEADER([sigset_t], [signal.h], , [signals_not_posix=1]) + if test -z "$signals_not_posix"; then + AC_CHECK_FUNC([sigprocmask], [gl_cv_func_sigprocmask=1]) + fi + if test -z "$gl_cv_func_sigprocmask"; then + HAVE_POSIX_SIGNALBLOCKING=0 + AC_LIBOBJ([sigprocmask]) + gl_PREREQ_SIGPROCMASK + fi +]) + +# Prerequisites of the part of lib/signal.in.h and of lib/sigprocmask.c. +AC_DEFUN([gl_PREREQ_SIGPROCMASK], +[ + AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) + 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 + dnl HAVE_SIGSET_T is 1 if the system lacks the sigprocmask function but has + dnl the sigset_t type. + AC_SUBST([HAVE_SIGSET_T]) +]) |