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........
  r200985 | kpfleming | 2009-06-16 11:32:36 -0500 (Tue, 16 Jun 2009) | 7 lines
  
  Fix problems with new compiler attribute checking in configure script.
  
  The last changes to ast_gcc_attribute.m4 caused some problems checking for
  various attributes, because the scope of the symbol the attribute is applied
  to can be important; this patch allows the scope to be specified for the check.
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.1@200989 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2009-06-16 16:35:45 +00:00
parent 8e5e00bd07
commit 6b120bb149
3 changed files with 92 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
autoconf/ast_gcc_attribute.m4
View File

@@ -1,5 +1,5 @@
# Helper function to check for gcc attributes.
# AST_GCC_ATTRIBUTE([attribute name], [attribute syntax])
# AST_GCC_ATTRIBUTE([attribute name], [attribute syntax], [attribute scope])
AC_DEFUN([AST_GCC_ATTRIBUTE],
[
@@ -7,10 +7,17 @@ AC_MSG_CHECKING(for compiler 'attribute $1' support)
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall -Wno-unused -Werror"
if test "x$3" = "x"
then
attribute_scope="static"
else
attribute_scope="$3"
fi
if test "x$2" = "x"
then
AC_COMPILE_IFELSE(
AC_LANG_PROGRAM([static void __attribute__(($1)) *test(void *muffin, ...) {return (void *) 0;}],
AC_LANG_PROGRAM([$attribute_scope void __attribute__(($1)) *test(void *muffin, ...) {return (void *) 0;}],
[]),
AC_MSG_RESULT(yes)
AC_DEFINE_UNQUOTED([HAVE_ATTRIBUTE_$1], 1, [Define to 1 if your GCC C compiler supports the '$1' attribute.]),
@@ -18,7 +25,7 @@ AC_COMPILE_IFELSE(
)
else
AC_COMPILE_IFELSE(
AC_LANG_PROGRAM([static void __attribute__(($2)) *test(void *muffin, ...) {return (void *) 0;}],
AC_LANG_PROGRAM([$attribute_scope void __attribute__(($2)) *test(void *muffin, ...) {return (void *) 0;}],
[]),
AC_MSG_RESULT(yes)
AC_DEFINE_UNQUOTED([HAVE_ATTRIBUTE_$1], 1, [Define to 1 if your GCC C compiler supports the '$1' attribute.]),

99
configure vendored
View File

@@ -17470,6 +17470,13 @@ $as_echo_n "checking for compiler 'attribute pure' support... " >&6; }
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall -Wno-unused -Werror"
if test "x" = "x"
then
attribute_scope="static"
else
attribute_scope=""
fi
if test "x" = "x"
then
cat >conftest.$ac_ext <<_ACEOF
@@ -17478,7 +17485,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__((pure)) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__((pure)) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -17529,7 +17536,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -17584,6 +17591,13 @@ $as_echo_n "checking for compiler 'attribute malloc' support... " >&6; }
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall -Wno-unused -Werror"
if test "x" = "x"
then
attribute_scope="static"
else
attribute_scope=""
fi
if test "x" = "x"
then
cat >conftest.$ac_ext <<_ACEOF
@@ -17592,7 +17606,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__((malloc)) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__((malloc)) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -17643,7 +17657,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -17698,6 +17712,13 @@ $as_echo_n "checking for compiler 'attribute const' support... " >&6; }
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall -Wno-unused -Werror"
if test "x" = "x"
then
attribute_scope="static"
else
attribute_scope=""
fi
if test "x" = "x"
then
cat >conftest.$ac_ext <<_ACEOF
@@ -17706,7 +17727,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__((const)) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__((const)) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -17757,7 +17778,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -17812,6 +17833,13 @@ $as_echo_n "checking for compiler 'attribute unused' support... " >&6; }
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall -Wno-unused -Werror"
if test "x" = "x"
then
attribute_scope="static"
else
attribute_scope=""
fi
if test "x" = "x"
then
cat >conftest.$ac_ext <<_ACEOF
@@ -17820,7 +17848,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__((unused)) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__((unused)) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -17871,7 +17899,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -17926,6 +17954,13 @@ $as_echo_n "checking for compiler 'attribute always_inline' support... " >&6; }
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall -Wno-unused -Werror"
if test "x" = "x"
then
attribute_scope="static"
else
attribute_scope=""
fi
if test "x" = "x"
then
cat >conftest.$ac_ext <<_ACEOF
@@ -17934,7 +17969,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__((always_inline)) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__((always_inline)) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -17985,7 +18020,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -18040,6 +18075,13 @@ $as_echo_n "checking for compiler 'attribute deprecated' support... " >&6; }
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall -Wno-unused -Werror"
if test "x" = "x"
then
attribute_scope="static"
else
attribute_scope=""
fi
if test "x" = "x"
then
cat >conftest.$ac_ext <<_ACEOF
@@ -18048,7 +18090,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__((deprecated)) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__((deprecated)) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -18099,7 +18141,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -18154,6 +18196,13 @@ $as_echo_n "checking for compiler 'attribute sentinel' support... " >&6; }
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall -Wno-unused -Werror"
if test "x" = "x"
then
attribute_scope="static"
else
attribute_scope=""
fi
if test "x" = "x"
then
cat >conftest.$ac_ext <<_ACEOF
@@ -18162,7 +18211,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__((sentinel)) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__((sentinel)) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -18213,7 +18262,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -18268,6 +18317,13 @@ $as_echo_n "checking for compiler 'attribute warn_unused_result' support... " >&
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall -Wno-unused -Werror"
if test "x" = "x"
then
attribute_scope="static"
else
attribute_scope=""
fi
if test "x" = "x"
then
cat >conftest.$ac_ext <<_ACEOF
@@ -18276,7 +18332,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__((warn_unused_result)) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__((warn_unused_result)) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -18327,7 +18383,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -18382,6 +18438,13 @@ $as_echo_n "checking for compiler 'attribute weak' support... " >&6; }
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall -Wno-unused -Werror"
if test "x""" = "x"
then
attribute_scope="static"
else
attribute_scope=""""
fi
if test "x" = "x"
then
cat >conftest.$ac_ext <<_ACEOF
@@ -18390,7 +18453,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__((weak)) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__((weak)) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -18441,7 +18504,7 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
static void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
$attribute_scope void __attribute__(()) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{

2
configure.ac
View File

@@ -488,7 +488,7 @@ AST_GCC_ATTRIBUTE(always_inline)
AST_GCC_ATTRIBUTE(deprecated)
AST_GCC_ATTRIBUTE(sentinel)
AST_GCC_ATTRIBUTE(warn_unused_result)
AST_GCC_ATTRIBUTE(weak)
AST_GCC_ATTRIBUTE(weak, , "")
AC_MSG_CHECKING(for -ffunction-sections support)
saved_CFLAGS="${CFLAGS}"