Update ax_pthread.m4 to the most recent version

Closes #1901.
This commit is contained in:
Thomas Goyne 2016-01-11 20:44:09 -08:00
parent ad0f702a55
commit 9ed553e5fb
1 changed files with 54 additions and 31 deletions

View File

@ -82,7 +82,7 @@
# modified version of the Autoconf Macro, you may extend this special # modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well. # exception to the GPL to apply to your modified version as well.
#serial 17 #serial 21
AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD]) AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD])
AC_DEFUN([AX_PTHREAD], [ AC_DEFUN([AX_PTHREAD], [
@ -103,8 +103,8 @@ if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
save_LIBS="$LIBS" save_LIBS="$LIBS"
LIBS="$PTHREAD_LIBS $LIBS" LIBS="$PTHREAD_LIBS $LIBS"
AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS]) AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
AC_TRY_LINK_FUNC(pthread_join, ax_pthread_ok=yes) AC_TRY_LINK_FUNC([pthread_join], [ax_pthread_ok=yes])
AC_MSG_RESULT($ax_pthread_ok) AC_MSG_RESULT([$ax_pthread_ok])
if test x"$ax_pthread_ok" = xno; then if test x"$ax_pthread_ok" = xno; then
PTHREAD_LIBS="" PTHREAD_LIBS=""
PTHREAD_CFLAGS="" PTHREAD_CFLAGS=""
@ -145,8 +145,8 @@ ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mt
# --thread-safe: KAI C++ # --thread-safe: KAI C++
# pthread-config: use pthread-config program (for GNU Pth library) # pthread-config: use pthread-config program (for GNU Pth library)
case "${host_cpu}-${host_os}" in case ${host_os} in
*solaris*) solaris*)
# On Solaris (at least, for some versions), libc contains stubbed # On Solaris (at least, for some versions), libc contains stubbed
# (non-functional) versions of the pthreads routines, so link-based # (non-functional) versions of the pthreads routines, so link-based
@ -159,11 +159,25 @@ case "${host_cpu}-${host_os}" in
ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags" ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags"
;; ;;
*-darwin*) darwin*)
ax_pthread_flags="-pthread $ax_pthread_flags" ax_pthread_flags="-pthread $ax_pthread_flags"
;; ;;
esac esac
# Clang doesn't consider unrecognized options an error unless we specify
# -Werror. We throw in some extra Clang-specific options to ensure that
# this doesn't happen for GCC, which also accepts -Werror.
AC_MSG_CHECKING([if compiler needs -Werror to reject unknown flags])
save_CFLAGS="$CFLAGS"
ax_pthread_extra_flags="-Werror"
CFLAGS="$CFLAGS $ax_pthread_extra_flags -Wunknown-warning-option -Wsizeof-array-argument"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([int foo(void);],[foo()])],
[AC_MSG_RESULT([yes])],
[ax_pthread_extra_flags=
AC_MSG_RESULT([no])])
CFLAGS="$save_CFLAGS"
if test x"$ax_pthread_ok" = xno; then if test x"$ax_pthread_ok" = xno; then
for flag in $ax_pthread_flags; do for flag in $ax_pthread_flags; do
@ -178,7 +192,7 @@ for flag in $ax_pthread_flags; do
;; ;;
pthread-config) pthread-config)
AC_CHECK_PROG(ax_pthread_config, pthread-config, yes, no) AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no])
if test x"$ax_pthread_config" = xno; then continue; fi if test x"$ax_pthread_config" = xno; then continue; fi
PTHREAD_CFLAGS="`pthread-config --cflags`" PTHREAD_CFLAGS="`pthread-config --cflags`"
PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
@ -193,7 +207,7 @@ for flag in $ax_pthread_flags; do
save_LIBS="$LIBS" save_LIBS="$LIBS"
save_CFLAGS="$CFLAGS" save_CFLAGS="$CFLAGS"
LIBS="$PTHREAD_LIBS $LIBS" LIBS="$PTHREAD_LIBS $LIBS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS $ax_pthread_extra_flags"
# Check for various functions. We must include pthread.h, # Check for various functions. We must include pthread.h,
# since some functions may be macros. (On the Sequent, we # since some functions may be macros. (On the Sequent, we
@ -219,7 +233,7 @@ for flag in $ax_pthread_flags; do
LIBS="$save_LIBS" LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS" CFLAGS="$save_CFLAGS"
AC_MSG_RESULT($ax_pthread_ok) AC_MSG_RESULT([$ax_pthread_ok])
if test "x$ax_pthread_ok" = xyes; then if test "x$ax_pthread_ok" = xyes; then
break; break;
fi fi
@ -245,61 +259,70 @@ if test "x$ax_pthread_ok" = xyes; then
[attr_name=$attr; break], [attr_name=$attr; break],
[]) [])
done done
AC_MSG_RESULT($attr_name) AC_MSG_RESULT([$attr_name])
if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name, AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE], [$attr_name],
[Define to necessary symbol if this constant [Define to necessary symbol if this constant
uses a non-standard name on your system.]) uses a non-standard name on your system.])
fi fi
AC_MSG_CHECKING([if more special flags are required for pthreads]) AC_MSG_CHECKING([if more special flags are required for pthreads])
flag=no flag=no
case "${host_cpu}-${host_os}" in case ${host_os} in
*-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";; aix* | freebsd* | darwin*) flag="-D_THREAD_SAFE";;
*-osf* | *-hpux*) flag="-D_REENTRANT";; osf* | hpux*) flag="-D_REENTRANT";;
*solaris*) solaris*)
if test "$GCC" = "yes"; then if test "$GCC" = "yes"; then
flag="-D_REENTRANT" flag="-D_REENTRANT"
else else
# TODO: What about Clang on Solaris?
flag="-mt -D_REENTRANT" flag="-mt -D_REENTRANT"
fi fi
;; ;;
esac esac
AC_MSG_RESULT(${flag}) AC_MSG_RESULT([$flag])
if test "x$flag" != xno; then if test "x$flag" != xno; then
PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS" PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
fi fi
AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT], AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT],
ax_cv_PTHREAD_PRIO_INHERIT, [ [ax_cv_PTHREAD_PRIO_INHERIT], [
AC_LINK_IFELSE([ AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]],
AC_LANG_PROGRAM([[#include <pthread.h>]], [[int i = PTHREAD_PRIO_INHERIT;]])], [[int i = PTHREAD_PRIO_INHERIT;]])],
[ax_cv_PTHREAD_PRIO_INHERIT=yes], [ax_cv_PTHREAD_PRIO_INHERIT=yes],
[ax_cv_PTHREAD_PRIO_INHERIT=no]) [ax_cv_PTHREAD_PRIO_INHERIT=no])
]) ])
AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes"], AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes"],
AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], 1, [Have PTHREAD_PRIO_INHERIT.])) [AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], [1], [Have PTHREAD_PRIO_INHERIT.])])
LIBS="$save_LIBS" LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS" CFLAGS="$save_CFLAGS"
# More AIX lossage: must compile with xlc_r or cc_r # More AIX lossage: compile with *_r variant
if test x"$GCC" != xyes; then if test "x$GCC" != xyes; then
AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC}) case $host_os in
else aix*)
PTHREAD_CC=$CC AS_CASE(["x/$CC"],
[x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6],
[#handle absolute path differently from PATH based program lookup
AS_CASE(["x$CC"],
[x/*],
[AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])],
[AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])])])
;;
esac
fi fi
else
PTHREAD_CC="$CC"
fi fi
AC_SUBST(PTHREAD_LIBS) test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
AC_SUBST(PTHREAD_CFLAGS)
AC_SUBST(PTHREAD_CC) AC_SUBST([PTHREAD_LIBS])
AC_SUBST([PTHREAD_CFLAGS])
AC_SUBST([PTHREAD_CC])
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
if test x"$ax_pthread_ok" = xyes; then if test x"$ax_pthread_ok" = xyes; then
ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1]) ifelse([$1],,[AC_DEFINE([HAVE_PTHREAD],[1],[Define if you have POSIX threads libraries and header files.])],[$1])
: :
else else
ax_pthread_ok=no ax_pthread_ok=no