diff options
Diffstat (limited to 'gnulib/m4/signalblocking.m4')
| m--------- | gnulib | 0 | ||||
| -rw-r--r-- | gnulib/m4/signalblocking.m4 | 27 |
2 files changed, 27 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/m4/signalblocking.m4 b/gnulib/m4/signalblocking.m4 new file mode 100644 index 0000000..eda856d --- /dev/null +++ b/gnulib/m4/signalblocking.m4 @@ -0,0 +1,27 @@ +# signalblocking.m4 serial 13 +dnl Copyright (C) 2001-2002, 2006-2011 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]) + AC_REQUIRE([gl_CHECK_TYPE_SIGSET_T]) + if test $gl_cv_type_sigset_t = yes; then + AC_CHECK_FUNC([sigprocmask], [gl_cv_func_sigprocmask=1]) + fi + if test -z "$gl_cv_func_sigprocmask"; then + HAVE_POSIX_SIGNALBLOCKING=0 + fi +]) + +# Prerequisites of lib/sigprocmask.c. +AC_DEFUN([gl_PREREQ_SIGPROCMASK], [ + AC_REQUIRE([AC_C_INLINE]) +]) |