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linkage.m4 (GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1): Eliminate a subshell and if test fails...

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2005-04-08  Kelley Cook  <kcook@gcc.gnu.org>

	* linkage.m4 (GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1): Eliminate
	a subshell and if test fails, test for same functions with
	leading underscore.
	(GLIBCXX_CHECK_MATH_SUPPORT): Eliminate seperate checks for _funcs.
	* configure: Regenerate.

From-SVN: r97860
This commit is contained in:
Kelley Cook 2005-04-08 21:29:13 +00:00 committed by R. Kelley Cook
parent d411365616
commit 3df45831d7
3 changed files with 2274 additions and 2327 deletions
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8
libstdc++-v3/ChangeLog
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@ -1,3 +1,11 @@
2005-04-08 Kelley Cook <kcook@gcc.gnu.org>
* linkage.m4 (GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1): Eliminate
a subshell and if test fails, test for same functions with
leading underscore.
(GLIBCXX_CHECK_MATH_SUPPORT): Eliminate seperate checks for _funcs.
* configure: Regenerate.
2005-04-08 Danny Smith <dannysmith@users.sourceforge.net>
Paolo Carlini <pcarlini@suse.de>

4551
libstdc++-v3/configure vendored
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File diff suppressed because it is too large Load Diff

42
libstdc++-v3/linkage.m4
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@ -27,6 +27,7 @@ AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_1], [
AC_MSG_RESULT($glibcxx_cv_func_$1_use)
])
dnl
dnl Check to see if the (math function) argument passed is
dnl 1) declared when using the c++ compiler
@ -59,19 +60,35 @@ dnl of functions at once. It's an all-or-nothing check -- either
dnl HAVE_XYZ is defined for each of the functions, or for none of them.
dnl Doing it this way saves significant configure time.
AC_DEFUN([GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1], [
define([funclist],patsubst($3,\(\w+\)\(\W*\),\1 ))dnl
AC_MSG_CHECKING([for $1 functions])
AC_CACHE_VAL(glibcxx_cv_func_$2_use, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <math.h>],
[ `for x in $3; do echo "$x (0);"; done` ],
patsubst(funclist,[\w+],[\& (0);]),
[glibcxx_cv_func_$2_use=yes],
[glibcxx_cv_func_$2_use=no])
AC_LANG_RESTORE])
AC_MSG_RESULT($glibcxx_cv_func_$2_use)
if test x$glibcxx_cv_func_$2_use = x"yes"; then
AC_CHECK_FUNCS($3)
AC_CHECK_FUNCS(funclist)
else
AC_MSG_CHECKING([for _$1 functions])
AC_CACHE_VAL(glibcxx_cv_func__$2_use, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <math.h>],
patsubst(funclist,[\w+],[_\& (0);]),
[glibcxx_cv_func__$2_use=yes],
[glibcxx_cv_func__$2_use=no])
AC_LANG_RESTORE])
AC_MSG_RESULT($glibcxx_cv_func__$2_use)
if test x$glibcxx_cv_func__$2_use = x"yes"; then
AC_CHECK_FUNCS(patsubst(funclist,[\w+],[_\&]))
fi
fi
undefine([funclist])
])
dnl
@ -450,27 +467,6 @@ AC_DEFUN([GLIBCXX_CHECK_MATH_SUPPORT], [
dnl keep this sync'd with the one above. And if you add any new symbol,
dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h.
dnl Check to see if certain C math functions exist.
dnl Check to see if basic C math functions have float versions.
GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig,
_float_trig,
_acosf _asinf _atanf \
_cosf _sinf _tanf \
_coshf _sinhf _tanhf)
GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round,
_float_round,
_ceilf _floorf)
dnl Check to see if basic C math functions have long double versions.
GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig,
_long_double_trig,
_acosl _asinl _atanl \
_cosl _sinl _tanl \
_coshl _sinhl _tanhl)
GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round,
_long_double_round,
_ceill _floorl)
LIBS="$ac_save_LIBS"
CXXFLAGS="$ac_save_CXXFLAGS"
])