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- updated ax_pthread.m4 to version 21 with clang support, this

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removes a warning from compilation.


git-svn-id: file:///svn/unbound/trunk@3581 be551aaa-1e26-0410-a405-d3ace91eadb9
This commit is contained in:
Wouter Wijngaards 2015-12-11 12:19:12 +00:00
parent 72a5931a68
commit db64a96d79
3 changed files with 70 additions and 22 deletions
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49
ax_pthread.m4
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 20 #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=""
@ -164,6 +164,20 @@ case ${host_os} in
;; ;;
esac esac
# Clang doesn't consider unrecognized options an error unless we specify
# -Werror. We throw in some extra Clang-specific options to ensure that
# this doesn't happen for GCC, which also accepts -Werror.
AC_MSG_CHECKING([if compiler needs -Werror to reject unknown flags])
save_CFLAGS="$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$ax_pthread_ok" = xyes; then
break; break;
fi fi
@ -245,9 +259,9 @@ if test "x$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
@ -261,24 +275,25 @@ if test "x$ax_pthread_ok" = xyes; then
if test "$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="$save_CFLAGS"
@ -301,13 +316,13 @@ fi
test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
AC_SUBST(PTHREAD_LIBS) AC_SUBST([PTHREAD_LIBS])
AC_SUBST(PTHREAD_CFLAGS) AC_SUBST([PTHREAD_CFLAGS])
AC_SUBST(PTHREAD_CC) AC_SUBST([PTHREAD_CC])
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
if test x"$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

41
configure vendored
View file

@ -15524,6 +15524,37 @@ case ${host_os} in
;; ;;
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.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if compiler needs -Werror to reject unknown flags" >&5
$as_echo_n "checking if compiler needs -Werror to reject unknown flags... " >&6; }
save_CFLAGS="$CFLAGS"
ax_pthread_extra_flags="-Werror"
CFLAGS="$CFLAGS $ax_pthread_extra_flags -Wunknown-warning-option -Wsizeof-array-argument"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int foo(void);
int
main ()
{
foo()
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
ax_pthread_extra_flags=
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
CFLAGS="$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
@ -15593,7 +15624,7 @@ $as_echo_n "checking for the pthreads library -l$flag... " >&6; }
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
@ -15691,12 +15722,13 @@ $as_echo_n "checking if more special flags are required for pthreads... " >&6; }
if test "$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
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${flag}" >&5 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $flag" >&5
$as_echo "${flag}" >&6; } $as_echo "$flag" >&6; }
if test "x$flag" != xno; then if test "x$flag" != xno; then
PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS" PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
fi fi
@ -15709,8 +15741,7 @@ else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */ /* end confdefs.h. */
#include <pthread.h>
#include <pthread.h>
int int
main () main ()
{ {

2
doc/Changelog
View file

@ -1,5 +1,7 @@
11 December 2015: Wouter 11 December 2015: Wouter
- remove NULL-checks before free, patch from Michael McConville. - remove NULL-checks before free, patch from Michael McConville.
- updated ax_pthread.m4 to version 21 with clang support, this
removes a warning from compilation.
10 December 2015: Wouter 10 December 2015: Wouter
- 1.5.7 release - 1.5.7 release