From: Petr Mikhalicin <pmikhali...@rutoken.ru> Autotools tests for libstdc++ check only declaration of required symbols, but some symbols may not be defined.
This patch adds trying to link "C99 TR1" tests, not only compile them. Signed-off-by: Petr Mikhalicin <mkh199...@mail.ru> --- libstdc++-v3/acinclude.m4 | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4 index 90ecc4a87a2..8bf8b884a7c 100644 --- a/libstdc++-v3/acinclude.m4 +++ b/libstdc++-v3/acinclude.m4 @@ -1645,7 +1645,7 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [ ac_c99_complex_tr1=no; if test x"$ac_has_complex_h" = x"yes"; then AC_MSG_CHECKING([for ISO C99 support to TR1 in <complex.h>]) - AC_TRY_COMPILE([#include <complex.h>], + AC_TRY_LINK( [#include <complex.h>], [typedef __complex__ float float_type; float_type tmpf; cacosf(tmpf); casinf(tmpf); @@ -1680,7 +1680,7 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [ # Check for the existence of <ctype.h> functions. AC_MSG_CHECKING([for ISO C99 support to TR1 in <ctype.h>]) AC_CACHE_VAL(glibcxx_cv_c99_ctype_tr1, [ - AC_TRY_COMPILE([#include <ctype.h>], + AC_TRY_LINK( [#include <ctype.h>], [int ch; int ret; ret = isblank(ch); @@ -1699,7 +1699,7 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [ ac_c99_fenv_tr1=no; if test x"$ac_has_fenv_h" = x"yes"; then AC_MSG_CHECKING([for ISO C99 support to TR1 in <fenv.h>]) - AC_TRY_COMPILE([#include <fenv.h>], + AC_TRY_LINK( [#include <fenv.h>], [int except, mode; fexcept_t* pflag; fenv_t* penv; @@ -1727,7 +1727,7 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [ # Check for the existence of <stdint.h> types. AC_MSG_CHECKING([for ISO C99 support to TR1 in <stdint.h>]) AC_CACHE_VAL(glibcxx_cv_c99_stdint_tr1, [ - AC_TRY_COMPILE([#define __STDC_LIMIT_MACROS + AC_TRY_LINK( [#define __STDC_LIMIT_MACROS #define __STDC_CONSTANT_MACROS #include <stdint.h>], [typedef int8_t my_int8_t; @@ -1827,7 +1827,7 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [ # Check for the existence of <math.h> functions. AC_MSG_CHECKING([for ISO C99 support to TR1 in <math.h>]) AC_CACHE_VAL(glibcxx_cv_c99_math_tr1, [ - AC_TRY_COMPILE([#include <math.h>], + AC_TRY_LINK( [#include <math.h>], [typedef double_t my_double_t; typedef float_t my_float_t; acosh(0.0); @@ -1949,7 +1949,7 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [ darwin*) AC_MSG_CHECKING([for ISO C99 rounding functions in <math.h>]) AC_CACHE_VAL(glibcxx_cv_c99_math_llround, [ - AC_TRY_COMPILE([#include <math.h>], + AC_TRY_LINK([#include <math.h>], [llrint(0.0); llrintf(0.0f); llrintl(0.0l); @@ -1974,7 +1974,7 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [ ac_c99_inttypes_tr1=no; if test x"$glibcxx_cv_c99_stdint_tr1" = x"yes"; then AC_MSG_CHECKING([for ISO C99 support to TR1 in <inttypes.h>]) - AC_TRY_COMPILE([#include <inttypes.h>], + AC_TRY_LINK( [#include <inttypes.h>], [intmax_t i, numer, denom, base; const char* s; char** endptr; @@ -1996,7 +1996,7 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [ ac_c99_inttypes_wchar_t_tr1=no; if test x"$glibcxx_cv_c99_stdint_tr1" = x"yes"; then AC_MSG_CHECKING([for wchar_t ISO C99 support to TR1 in <inttypes.h>]) - AC_TRY_COMPILE([#include <inttypes.h>], + AC_TRY_LINK( [#include <inttypes.h>], [intmax_t base; const wchar_t* s; wchar_t** endptr; -- 2.31.1