diff options
Diffstat (limited to 'libstdc++-v3/acinclude.m4')
| -rw-r--r-- | libstdc++-v3/acinclude.m4 | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4 index e2c1214fe0a..d7279705d48 100644 --- a/libstdc++-v3/acinclude.m4 +++ b/libstdc++-v3/acinclude.m4 @@ -757,6 +757,7 @@ AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [ GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round, float_round, ceilf floorf) + GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expf) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f) @@ -843,17 +844,19 @@ AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [ AC_CHECK_LIB(m, main) AC_REPLACE_MATHFUNCS(nan copysignf) + dnl For __signbit to signbit conversions. + AC_CHECK_FUNCS([__signbit], , [LIBMATHOBJS="$LIBMATHOBJS signbit.lo"]) + AC_CHECK_FUNCS([__signbitf], , [LIBMATHOBJS="$LIBMATHOBJS signbitf.lo"]) + dnl Compile the long double complex functions only if the function dnl provides the non-complex long double functions that are needed. dnl Currently this includes copysignl, which should be dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above. - USE_COMPLEX_LONG_DOUBLE=no if test x$ac_cv_func_copysignl = x"yes"; then - USE_COMPLEX_LONG_DOUBLE=yes - AC_REPLACE_MATHFUNCS(signbitl) + AC_CHECK_FUNCS([__signbitl], , [LIBMATHOBJS="$LIBMATHOBJS signbitl.lo"]) fi - AC_SUBST(USE_COMPLEX_LONG_DOUBLE) + AC_SUBST(LIBMATHOBJS) ]) @@ -1686,7 +1689,6 @@ changequote([, ]) c_shadow) CSHADOW_FLAGS="-fno-builtin" C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_shadow' - AC_DEFINE(_GLIBCPP_USE_SHADOW_HEADERS) ;; c_std) CSHADOW_FLAGS="" @@ -1700,7 +1702,8 @@ changequote([, ]) AC_SUBST(CSHADOW_FLAGS) AC_SUBST(C_INCLUDE_DIR) - AM_CONDITIONAL(GLIBCPP_USE_CSHADOW, test "$enable_cheaders" = c_shadow) + AM_CONDITIONAL(GLIBCPP_C_HEADERS_C, test "$enable_cheaders" = c) + AM_CONDITIONAL(GLIBCPP_C_HEADERS_C_STD, test "$enable_cheaders" = c_std) ]) @@ -1888,10 +1891,7 @@ AC_SUBST(glibcpp_toolexeclibdir) dnl AC_REPLACE_MATHFUNCS(FUNCTION...) AC_DEFUN(AC_REPLACE_MATHFUNCS, -[AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"]) -AC_SUBST(LIBMATHOBJS)dnl -]) - +[AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"])]) dnl This macro searches for a GNU version of make. If a match is found, the |