diff options
Diffstat (limited to 'm4/pthread_sigmask.m4')
| -rw-r--r-- | m4/pthread_sigmask.m4 | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/m4/pthread_sigmask.m4 b/m4/pthread_sigmask.m4 index ff7fa96..2779528 100644 --- a/m4/pthread_sigmask.m4 +++ b/m4/pthread_sigmask.m4 @@ -1,5 +1,5 @@ -# pthread_sigmask.m4 serial 21 -dnl Copyright (C) 2011-2021 Free Software Foundation, Inc. +# pthread_sigmask.m4 serial 22 +dnl Copyright (C) 2011-2023 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. @@ -24,7 +24,7 @@ AC_DEFUN([gl_FUNC_PTHREAD_SIGMASK], [gl_cv_func_pthread_sigmask_macro=no]) ]) - LIB_PTHREAD_SIGMASK= + PTHREAD_SIGMASK_LIB= if test $gl_cv_func_pthread_sigmask_macro = yes; then dnl pthread_sigmask is a dummy macro. @@ -62,7 +62,7 @@ AC_DEFUN([gl_FUNC_PTHREAD_SIGMASK], ]) if test $gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD = yes; then dnl pthread_sigmask is available with -pthread or -lpthread. - LIB_PTHREAD_SIGMASK="$LIBMULTITHREAD" + PTHREAD_SIGMASK_LIB="$LIBMULTITHREAD" else dnl pthread_sigmask is not available at all. HAVE_PTHREAD_SIGMASK=0 @@ -101,6 +101,9 @@ AC_DEFUN([gl_FUNC_PTHREAD_SIGMASK], ]) fi + AC_SUBST([PTHREAD_SIGMASK_LIB]) + dnl For backward compatibility. + LIB_PTHREAD_SIGMASK="$PTHREAD_SIGMASK_LIB" AC_SUBST([LIB_PTHREAD_SIGMASK]) dnl We don't need a variable LTLIB_PTHREAD_SIGMASK, because when dnl "$gl_threads_api" = posix, $LTLIBMULTITHREAD and $LIBMULTITHREAD are the @@ -114,7 +117,7 @@ AC_DEFUN([gl_FUNC_PTHREAD_SIGMASK], dnl On FreeBSD 13.0, MidnightBSD 1.1, HP-UX 11.31, Solaris 9, in programs dnl that are not linked with -lpthread, the pthread_sigmask() function dnl always returns 0 and has no effect. - if test -z "$LIB_PTHREAD_SIGMASK"; then + if test -z "$PTHREAD_SIGMASK_LIB"; then case " $LIBS " in *' -pthread '*) ;; *' -lpthread '*) ;; @@ -162,7 +165,7 @@ AC_DEFUN([gl_FUNC_PTHREAD_SIGMASK], [gl_cv_func_pthread_sigmask_return_works], [ gl_save_LIBS="$LIBS" - LIBS="$LIBS $LIB_PTHREAD_SIGMASK" + LIBS="$LIBS $PTHREAD_SIGMASK_LIB" AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include <pthread.h> @@ -208,13 +211,14 @@ int main () gl_cv_func_pthread_sigmask_unblock_works="guessing yes";; esac m4_ifdef([gl_][THREADLIB], - [dnl Link against $LIBMULTITHREAD, not only $LIB_PTHREAD_SIGMASK. + [dnl Link against $LIBMULTITHREAD, not only $PTHREAD_SIGMASK_LIB. dnl Otherwise we get a false positive on those platforms where dnl $gl_cv_func_pthread_sigmask_in_libc_works is "no". gl_save_LIBS=$LIBS LIBS="$LIBS $LIBMULTITHREAD"]) AC_RUN_IFELSE( [AC_LANG_SOURCE([[ +#include <limits.h> #include <pthread.h> #include <signal.h> #include <stdio.h> @@ -230,14 +234,16 @@ sigint_handler (int sig) int main () { sigset_t set; - int pid = getpid (); + pid_t pid = getpid (); char command[80]; + if (LONG_MAX < pid) + return 6; signal (SIGINT, sigint_handler); sigemptyset (&set); sigaddset (&set, SIGINT); if (!(pthread_sigmask (SIG_BLOCK, &set, NULL) == 0)) return 1; - sprintf (command, "sh -c 'sleep 1; kill -%d %d' &", SIGINT, pid); + sprintf (command, "sh -c 'sleep 1; kill -INT %ld' &", (long) pid); if (!(system (command) == 0)) return 2; sleep (2); |