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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/1.6.0@200986 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2009-06-16 16:34:03 +00:00
parent 6ba01d613f
commit 64cfe299bd
3 changed files with 74 additions and 18 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.]),

77
configure vendored
View File

@@ -17396,6 +17396,13 @@ $as_echo_n "checking for compiler 'attribute pure' support... " >&6; }
saved_CFLAGS="$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
@@ -17404,7 +17411,7 @@ _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;}
$attribute_scope void __attribute__((pure)) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -17455,7 +17462,7 @@ _ACEOF
cat confdefs.h >>conftest.$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 ()
{
@@ -17510,6 +17517,13 @@ $as_echo_n "checking for compiler 'attribute malloc' support... " >&6; }
saved_CFLAGS="$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
@@ -17518,7 +17532,7 @@ _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;}
$attribute_scope void __attribute__((malloc)) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -17569,7 +17583,7 @@ _ACEOF
cat confdefs.h >>conftest.$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 ()
{
@@ -17624,6 +17638,13 @@ $as_echo_n "checking for compiler 'attribute const' support... " >&6; }
saved_CFLAGS="$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
@@ -17632,7 +17653,7 @@ _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;}
$attribute_scope void __attribute__((const)) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -17683,7 +17704,7 @@ _ACEOF
cat confdefs.h >>conftest.$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 ()
{
@@ -17738,6 +17759,13 @@ $as_echo_n "checking for compiler 'attribute unused' support... " >&6; }
saved_CFLAGS="$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
@@ -17746,7 +17774,7 @@ _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;}
$attribute_scope void __attribute__((unused)) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -17797,7 +17825,7 @@ _ACEOF
cat confdefs.h >>conftest.$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 ()
{
@@ -17852,6 +17880,13 @@ $as_echo_n "checking for compiler 'attribute always_inline' support... " >&6; }
saved_CFLAGS="$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
@@ -17860,7 +17895,7 @@ _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;}
$attribute_scope void __attribute__((always_inline)) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -17911,7 +17946,7 @@ _ACEOF
cat confdefs.h >>conftest.$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 ()
{
@@ -17966,6 +18001,13 @@ $as_echo_n "checking for compiler 'attribute deprecated' support... " >&6; }
saved_CFLAGS="$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
@@ -17974,7 +18016,7 @@ _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;}
$attribute_scope void __attribute__((deprecated)) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -18025,7 +18067,7 @@ _ACEOF
cat confdefs.h >>conftest.$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 ()
{
@@ -18080,6 +18122,13 @@ $as_echo_n "checking for compiler 'attribute weak' support... " >&6; }
saved_CFLAGS="$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
@@ -18088,7 +18137,7 @@ _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;}
$attribute_scope void __attribute__((weak)) *test(void *muffin, ...) {return (void *) 0;}
int
main ()
{
@@ -18139,7 +18188,7 @@ _ACEOF
cat confdefs.h >>conftest.$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

@@ -484,7 +484,7 @@ AST_GCC_ATTRIBUTE(const)
AST_GCC_ATTRIBUTE(unused)
AST_GCC_ATTRIBUTE(always_inline)
AST_GCC_ATTRIBUTE(deprecated)
AST_GCC_ATTRIBUTE(weak)
AST_GCC_ATTRIBUTE(weak, , "")
AC_MSG_CHECKING(for -ffunction-sections support)
saved_CFLAGS="${CFLAGS}"