From: Michael Jeanson Date: Tue, 16 Apr 2019 17:47:59 +0000 (-0400) Subject: Update macros from the autotools archive X-Git-Tag: v0.11.0~6 X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=8ca861a518cb4903c8ad997cb4e6ee5df296ad46;p=userspace-rcu.git Update macros from the autotools archive Signed-off-by: Michael Jeanson Signed-off-by: Mathieu Desnoyers --- diff --git a/m4/ax_c___attribute__.m4 b/m4/ax_c___attribute__.m4 index cf3d62b..6a1ede1 100644 --- a/m4/ax_c___attribute__.m4 +++ b/m4/ax_c___attribute__.m4 @@ -1,5 +1,5 @@ # =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_c___attribute__.html +# https://www.gnu.org/software/autoconf-archive/ax_c___attribute__.html # =========================================================================== # # SYNOPSIS @@ -28,7 +28,7 @@ # Public License for more details. # # You should have received a copy of the GNU General Public License along -# with this program. If not, see . +# with this program. If not, see . # # As a special exception, the respective Autoconf Macro's copyright owner # gives unlimited permission to copy, distribute and modify the configure @@ -43,7 +43,7 @@ # modified version of the Autoconf Macro, you may extend this special # exception to the GPL to apply to your modified version as well. -#serial 8 +#serial 9 AC_DEFUN([AX_C___ATTRIBUTE__], [ AC_CACHE_CHECK([for __attribute__], [ax_cv___attribute__], diff --git a/m4/ax_pthread.m4 b/m4/ax_pthread.m4 index 4c4051e..4920e07 100644 --- a/m4/ax_pthread.m4 +++ b/m4/ax_pthread.m4 @@ -1,5 +1,5 @@ # =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_pthread.html +# https://www.gnu.org/software/autoconf-archive/ax_pthread.html # =========================================================================== # # SYNOPSIS @@ -67,7 +67,7 @@ # Public License for more details. # # You should have received a copy of the GNU General Public License along -# with this program. If not, see . +# with this program. If not, see . # # As a special exception, the respective Autoconf Macro's copyright owner # gives unlimited permission to copy, distribute and modify the configure @@ -82,7 +82,7 @@ # modified version of the Autoconf Macro, you may extend this special # exception to the GPL to apply to your modified version as well. -#serial 23 +#serial 25 AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD]) AC_DEFUN([AX_PTHREAD], [ @@ -438,7 +438,8 @@ if test "x$ax_pthread_ok" = "xyes"; then AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT], [ax_cv_PTHREAD_PRIO_INHERIT], [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include ]], - [[int i = PTHREAD_PRIO_INHERIT;]])], + [[int i = PTHREAD_PRIO_INHERIT; + return i;]])], [ax_cv_PTHREAD_PRIO_INHERIT=yes], [ax_cv_PTHREAD_PRIO_INHERIT=no]) ]) diff --git a/m4/ax_tls.m4 b/m4/ax_tls.m4 index 7c86daf..51edee8 100644 --- a/m4/ax_tls.m4 +++ b/m4/ax_tls.m4 @@ -1,5 +1,5 @@ # =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_tls.html +# https://www.gnu.org/software/autoconf-archive/ax_tls.html # =========================================================================== # # SYNOPSIS @@ -9,9 +9,9 @@ # DESCRIPTION # # Provides a test for the compiler support of thread local storage (TLS) -# extensions. Defines TLS if it is found. Currently knows about GCC/ICC -# and MSVC. I think SunPro uses the same as GCC, and Borland apparently -# supports either. +# extensions. Defines TLS if it is found. Currently knows about C++11, +# GCC/ICC, and MSVC. I think SunPro uses the same as GCC, and Borland +# apparently supports either. # # LICENSE # @@ -29,7 +29,7 @@ # Public License for more details. # # You should have received a copy of the GNU General Public License along -# with this program. If not, see . +# with this program. If not, see . # # As a special exception, the respective Autoconf Macro's copyright owner # gives unlimited permission to copy, distribute and modify the configure @@ -44,44 +44,31 @@ # modified version of the Autoconf Macro, you may extend this special # exception to the GPL to apply to your modified version as well. -#serial 11 - -# Define m4_ifblank and m4_ifnblank macros from introduced in -# autotools 2.64 m4sugar.m4 if using an earlier autotools. - -ifdef([m4_ifblank], [], [ -m4_define([m4_ifblank], -[m4_if(m4_translit([[$1]], [ ][ ][ -]), [], [$2], [$3])]) -]) - - -ifdef([m4_ifnblank], [], [ -m4_define([m4_ifnblank], -[m4_if(m4_translit([[$1]], [ ][ ][ -]), [], [$3], [$2])]) -]) +#serial 14 AC_DEFUN([AX_TLS], [ - AC_MSG_CHECKING(for thread local storage (TLS) class) - AC_CACHE_VAL(ac_cv_tls, [ - ax_tls_keywords="__thread __declspec(thread) none" - for ax_tls_keyword in $ax_tls_keywords; do + AC_MSG_CHECKING([for thread local storage (TLS) class]) + AC_CACHE_VAL([ac_cv_tls], + [for ax_tls_keyword in thread_local _Thread_local __thread '__declspec(thread)' none; do AS_CASE([$ax_tls_keyword], [none], [ac_cv_tls=none ; break], - [AC_TRY_LINK( - [$ax_tls_keyword int foo;], - [++foo;], + [AC_TRY_COMPILE( + [#include + static void + foo(void) { + static ] $ax_tls_keyword [ int bar; + exit(1); + }], + [], [ac_cv_tls=$ax_tls_keyword ; break], - [ac_cv_tls=none] + ac_cv_tls=none )]) done ]) - AC_MSG_RESULT($ac_cv_tls) + AC_MSG_RESULT([$ac_cv_tls]) AS_IF([test "$ac_cv_tls" != "none"], - AC_DEFINE_UNQUOTED([TLS], $ac_cv_tls, [If the compiler supports a TLS storage class define it to that here]) - m4_ifnblank([$1], [$1]), - m4_ifnblank([$2], [$2]) - ) + [AC_DEFINE_UNQUOTED([TLS],[$ac_cv_tls],[If the compiler supports a TLS storage class define it to that here]) + m4_ifnblank([$1],[$1])], + [m4_ifnblank([$2],[$2])]) ])