mirror of
https://github.com/gcc-mirror/gcc.git
synced 2024-11-21 13:40:47 +00:00
898fd81b83
The checks in linkage.m4 try to support math functions prefixed with underscores, like _acosf and _isinf. However, that doesn't work because they're renamed to the standard names using a macro, but then <cmath> undefines that macro again. This simply removes everything related to those underscored functions. libstdc++-v3/ChangeLog: PR libstdc++/111638 * config.h.in: Regenerate. * configure: Regenerate. * linkage.m4 (GLIBCXX_MAYBE_UNDERSCORED_FUNCS): Remove. (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1): Do not check for _foo. (GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1): Likewise. (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2): Likewise. (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3): Likewise. (GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2): Do not use GLIBCXX_MAYBE_UNDERSCORED_FUNCS.
380 lines
12 KiB
Plaintext
380 lines
12 KiB
Plaintext
dnl
|
|
dnl This file contains macros for testing linkage.
|
|
dnl
|
|
|
|
dnl
|
|
dnl Check to see if the (math function) argument passed is
|
|
dnl declared when using the c++ compiler
|
|
dnl ASSUMES argument is a math function with ONE parameter
|
|
dnl
|
|
dnl GLIBCXX_CHECK_MATH_DECL_1
|
|
AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_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>
|
|
#ifdef HAVE_IEEEFP_H
|
|
#include <ieeefp.h>
|
|
#endif
|
|
],
|
|
[ $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)
|
|
])
|
|
|
|
|
|
dnl
|
|
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_MATH_DECL_AND_LINKAGE_1
|
|
AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1], [
|
|
GLIBCXX_CHECK_MATH_DECL_1($1)
|
|
if test x$glibcxx_cv_func_$1_use = x"yes"; then
|
|
AC_CHECK_FUNCS($1)
|
|
fi
|
|
])
|
|
|
|
|
|
dnl
|
|
dnl Like GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1, but does a bunch of
|
|
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>],
|
|
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(funclist)
|
|
fi
|
|
undefine([funclist])
|
|
])
|
|
|
|
dnl
|
|
dnl Check to see if the (math function) argument passed is
|
|
dnl declared when using the c++ compiler
|
|
dnl ASSUMES argument is a math function with TWO parameters
|
|
dnl
|
|
dnl GLIBCXX_CHECK_MATH_DECL_2
|
|
AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_2], [
|
|
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, 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)
|
|
])
|
|
|
|
dnl
|
|
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 TWO parameters
|
|
dnl
|
|
dnl GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2
|
|
AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2], [
|
|
GLIBCXX_CHECK_MATH_DECL_2($1)
|
|
if test x$glibcxx_cv_func_$1_use = x"yes"; then
|
|
AC_CHECK_FUNCS($1)
|
|
fi
|
|
])
|
|
|
|
|
|
dnl
|
|
dnl Check to see if the (math function) argument passed is
|
|
dnl declared when using the c++ compiler
|
|
dnl ASSUMES argument is a math function with THREE parameters
|
|
dnl
|
|
dnl GLIBCXX_CHECK_MATH_DECL_3
|
|
AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_3], [
|
|
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, 0, 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)
|
|
])
|
|
|
|
dnl
|
|
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 THREE parameters
|
|
dnl
|
|
dnl GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3
|
|
AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3], [
|
|
GLIBCXX_CHECK_MATH_DECL_3($1)
|
|
if test x$glibcxx_cv_func_$1_use = x"yes"; then
|
|
AC_CHECK_FUNCS($1)
|
|
fi
|
|
])
|
|
|
|
|
|
dnl
|
|
dnl Check to see if the (stdlib function) argument passed is
|
|
dnl 1) declared when using the c++ compiler
|
|
dnl 2) has "C" linkage
|
|
dnl
|
|
dnl argument 1 is name of function to check
|
|
dnl
|
|
dnl ASSUMES argument is a stdlib function without parameters
|
|
dnl
|
|
dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_0
|
|
AC_DEFUN([GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_0], [
|
|
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 <stdlib.h>],
|
|
[ $1();],
|
|
[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_CHECK_FUNCS($1)
|
|
fi
|
|
])
|
|
|
|
|
|
dnl
|
|
dnl Check to see if the (stdlib function) argument passed is
|
|
dnl 1) declared when using the c++ compiler
|
|
dnl 2) has "C" linkage
|
|
dnl
|
|
dnl argument 1 is name of function to check
|
|
dnl
|
|
dnl ASSUMES argument is a stdlib function with ONE parameter
|
|
dnl
|
|
dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_1
|
|
AC_DEFUN([GLIBCXX_CHECK_STDLIB_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 <stdlib.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_CHECK_FUNCS($1)
|
|
fi
|
|
])
|
|
|
|
|
|
dnl
|
|
dnl Check to see if the (stdlib function) argument passed is
|
|
dnl 1) declared when using the c++ compiler
|
|
dnl 2) has "C" linkage
|
|
dnl
|
|
dnl argument 1 is name of function to check
|
|
dnl
|
|
dnl ASSUMES argument is a stdlib function with TWO parameters
|
|
dnl
|
|
dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2
|
|
AC_DEFUN([GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2], [
|
|
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 <stdlib.h>],
|
|
[ $1(0, 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_CHECK_FUNCS($1)
|
|
fi
|
|
])
|
|
|
|
|
|
dnl
|
|
dnl Check to see if the (stdlib function) argument passed is
|
|
dnl 1) declared when using the c++ compiler
|
|
dnl 2) has "C" linkage
|
|
dnl
|
|
dnl argument 1 is name of function to check
|
|
dnl
|
|
dnl ASSUMES argument is a stdlib function with THREE parameters
|
|
dnl
|
|
dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3
|
|
AC_DEFUN([GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3], [
|
|
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 <stdlib.h>],
|
|
[ $1(0, 0, 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_CHECK_FUNCS($1)
|
|
fi
|
|
])
|
|
|
|
dnl
|
|
dnl Check to see what the underlying c library is like
|
|
dnl These checks need to do two things:
|
|
dnl 1) make sure the name is declared when using the c++ compiler
|
|
dnl 2) make sure the name has "C" linkage
|
|
dnl This might seem like overkill but experience has shown that it's not...
|
|
dnl
|
|
dnl Define HAVE_STRTOLD if "strtold" is declared and links
|
|
dnl Define HAVE_STRTOF if "strtof" is declared and links
|
|
dnl
|
|
dnl GLIBCXX_CHECK_STDLIB_SUPPORT
|
|
AC_DEFUN([GLIBCXX_CHECK_STDLIB_SUPPORT], [
|
|
ac_test_CXXFLAGS="${CXXFLAGS+set}"
|
|
ac_save_CXXFLAGS="$CXXFLAGS"
|
|
CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
|
|
|
|
GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_1(at_quick_exit)
|
|
GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_1(quick_exit)
|
|
GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold)
|
|
GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtof)
|
|
|
|
CXXFLAGS="$ac_save_CXXFLAGS"
|
|
])
|
|
|
|
dnl
|
|
dnl Check to see what the underlying c library or math library is like.
|
|
dnl These checks need to do two things:
|
|
dnl 1) make sure the name is declared when using the c++ compiler
|
|
dnl 2) make sure the name has "C" linkage
|
|
dnl This might seem like overkill but experience has shown that it's not...
|
|
dnl
|
|
dnl Define HAVE_CARGF etc if "cargf" is found.
|
|
dnl
|
|
dnl GLIBCXX_CHECK_MATH_SUPPORT
|
|
AC_DEFUN([GLIBCXX_CHECK_MATH_SUPPORT], [
|
|
ac_test_CXXFLAGS="${CXXFLAGS+set}"
|
|
ac_save_CXXFLAGS="$CXXFLAGS"
|
|
CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
|
|
|
|
dnl Check libm
|
|
AC_CHECK_LIB(m, sin, libm="-lm")
|
|
ac_save_LIBS="$LIBS"
|
|
LIBS="$LIBS $libm"
|
|
|
|
dnl Check to see if certain C math functions exist.
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isinf)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isnan)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(finite)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3(sincos)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(hypot)
|
|
|
|
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)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(expf)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isinff)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(hypotf)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(logf)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(log10f)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(modff)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(modf)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(powf)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(finitef)
|
|
|
|
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)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(expl)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(hypotl)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(logl)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(log10l)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(modfl)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(powl)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl)
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(finitel)
|
|
|
|
LIBS="$ac_save_LIBS"
|
|
CXXFLAGS="$ac_save_CXXFLAGS"
|
|
])
|