2008-08-23 Paolo Carlini <paolo.carlini@oracle.com>

	* acinclude.m4 ([GLIBCXX_CHECK_GETTIMEOFDAY]): Change to use
	GCC_TRY_COMPILE_OR_LINK.
	([GLIBCXX_CHECK_CLOCK_GETTIME]): Rename to
	[GLIBCXX_ENABLE_CLOCK_GETTIME], a versatile configure-time option,
	[no] by default, since it includes TRY_LINK checks.  librt is also
	searched, if requested.
	* doc/xml/manual/configure.xml: Document the latter.
	* configure.ac: Move the above checks outside native-only.
	* configure: Regenerate.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@139576 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 0 insertions, 88 deletions

diff --git a/libstdc++-v3/linkage.m4 b/libstdc++-v3/linkage.m4
index 62d2c1da140..f1a15ac1885 100644
--- a/libstdc++-v3/linkage.m4
+++ b/libstdc++-v3/linkage.m4
@@ -291,94 +291,6 @@ AC_DEFUN([GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3], [
 ])
 
 dnl
-dnl Because the builtins are picky picky picky about the arguments they take,
-dnl do an explict linkage tests here.
-dnl Check to see if the (math function) argument passed is
-dnl 1) declared when using the c++ compiler
-dnl 2) has "C" linkage
-dnl
-dnl Define HAVE_CARGF etc if "cargf" is declared and links
-dnl
-dnl argument 1 is name of function to check
-dnl
-dnl ASSUMES argument is a math function with ONE parameter
-dnl
-dnl GLIBCXX_CHECK_BUILTIN_MATH_DECL_LINKAGE_1
-AC_DEFUN([GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1], [
-  AC_MSG_CHECKING([for $1 declaration])
-  if test x${glibcxx_cv_func_$1_use+set} != xset; then
-    AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
-      AC_LANG_SAVE
-      AC_LANG_CPLUSPLUS
-      AC_TRY_COMPILE([#include <math.h>],
-                     [ $1(0);],
-                     [glibcxx_cv_func_$1_use=yes], [glibcxx_cv_func_$1_use=no])
-      AC_LANG_RESTORE
-    ])
-  fi
-  AC_MSG_RESULT($glibcxx_cv_func_$1_use)
-  if test x$glibcxx_cv_func_$1_use = x"yes"; then
-    AC_MSG_CHECKING([for $1 linkage])
-    if test x${glibcxx_cv_func_$1_link+set} != xset; then
-      AC_CACHE_VAL(glibcxx_cv_func_$1_link, [
-        AC_TRY_LINK([#include <math.h>],
-                    [ $1(0);],
-                    [glibcxx_cv_func_$1_link=yes], [glibcxx_cv_func_$1_link=no])
-      ])
-    fi
-    AC_MSG_RESULT($glibcxx_cv_func_$1_link)
-    define([NAME], [translit([$1],[abcdefghijklmnopqrstuvwxyz],
-    				  [ABCDEFGHIJKLMNOPQRSTUVWXYZ])])
-    if test x$glibcxx_cv_func_$1_link = x"yes"; then
-      AC_DEFINE([HAVE_]NAME, 1, [Define if the compiler/host combination has $1.])
-    fi
-    undefine([NAME])
-  fi
-])
-
-
-dnl
-dnl Check to see what builtin math functions are supported
-dnl
-dnl check for __builtin_abs
-dnl check for __builtin_fabsf
-dnl check for __builtin_fabs
-dnl check for __builtin_fabl
-dnl check for __builtin_labs
-dnl check for __builtin_sqrtf
-dnl check for __builtin_sqrtl
-dnl check for __builtin_sqrt
-dnl check for __builtin_sinf
-dnl check for __builtin_sin
-dnl check for __builtin_sinl
-dnl check for __builtin_cosf
-dnl check for __builtin_cos
-dnl check for __builtin_cosl
-dnl
-dnl GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT
-AC_DEFUN([GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT], [
-  dnl Test for builtin math functions.
-  dnl These are made in gcc/c-common.c
-  GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs)
-  GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf)
-  GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs)
-  GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl)
-  GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs)
-
-  GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf)
-  GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrt)
-  GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl)
-
-  GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf)
-  GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin)
-  GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl)
-
-  GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf)
-  GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos)
-  GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl)
-])
-
-dnl
 dnl Check to see what the underlying c library is like
 dnl These checks need to do two things:
 dnl 1) make sure the name is declared when using the c++ compiler