Mercurial > hg > octave-nkf > gnulib-hg
changeset 15376:4a29b3a9c9f9
pthread_sigmask: Assume POSIX when not gl_THREADLIB.
* m4/pthread_sigmask.m4 (gl_FUNC_PTHREAD_SIGMASK):
When gl_THREADLIB is not in use, assume that the POSIX sematics
are desired. This is better for Emacs, which uses POSIX semantics
on GNUish and/or POSIXish platforms, and does not use threads at
all otherwise.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Fri, 08 Jul 2011 10:49:07 -0700 |
parents | a4b85c8a1142 |
children | a8a19e40f9e2 |
files | ChangeLog m4/pthread_sigmask.m4 |
diffstat | 2 files changed, 19 insertions(+), 7 deletions(-) [+] |
line wrap: on
line diff
--- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,12 @@ 2011-07-08 Paul Eggert <eggert@cs.ucla.edu> + pthread_sigmask: Assume POSIX when not gl_THREADLIB. + * m4/pthread_sigmask.m4 (gl_FUNC_PTHREAD_SIGMASK): + When gl_THREADLIB is not in use, assume that the POSIX sematics + are desired. This is better for Emacs, which uses POSIX semantics + on GNUish and/or POSIXish platforms, and does not use threads at + all otherwise. + pthread_sigmask: fix typo when testing for libraries * m4/pthread_sigmask.m4 (gl_FUNC_PTHREAD_SIGMASK): AC_LINK_IFELSE, not AC_COMPILE_IFELSE.
--- a/m4/pthread_sigmask.m4 +++ b/m4/pthread_sigmask.m4 @@ -1,4 +1,4 @@ -# pthread_sigmask.m4 serial 6 +# pthread_sigmask.m4 serial 7 dnl Copyright (C) 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, @@ -57,12 +57,17 @@ fi fi ] ,[ - dnl If module 'threadlib' is not in use, assume all programs will be - dnl single-threaded. - if test $ac_cv_func_pthread_sigmask = yes; then - REPLACE_PTHREAD_SIGMASK=1 - else - HAVE_PTHREAD_SIGMASK=0 + dnl gl_THREADLIB is not in use. Assume the application wants + dnl POSIX semantics. + if test $ac_cv_func_pthread_sigmask != yes; then + gl_save_LIBS=$LIBS + AC_SEARCH_LIBS([pthread_sigmask], [pthread c_r]) + LIBS=$gl_save_LIBS + if test "$ac_cv_search_pthread_sigmask" = no; then + HAVE_PTHREAD_SIGMASK=0 + elif test "$ac_cv_search_pthread_sigmask" != 'none required'; then + LIB_PTHREAD_SIGMASK=$ac_cv_search_pthread_sigmask + fi fi ]) AC_SUBST([LIB_PTHREAD_SIGMASK])