TR29124 C++ Special Maths - Make <math.h> pull functions into global namespace.

[Mike Stump]

I’m seeing:

/home/mrs/work1/gcc/libstdc++-v3/testsuite/special_functions/18_riemann_zeta/check_value.cc: In function 'void test(const testcase_riemann_zeta<Tp> (&)[Num], Tp)':
/home/mrs/work1/gcc/libstdc++-v3/testsuite/special_functions/18_riemann_zeta/check_value.cc:285:15: error: 'riemann_zeta' is not a member of 'std'
compiler exited with status 1
output is:
/home/mrs/work1/gcc/libstdc++-v3/testsuite/special_functions/18_riemann_zeta/check_value.cc: In function 'void test(const testcase_riemann_zeta<Tp> (&)[Num], Tp)':
/home/mrs/work1/gcc/libstdc++-v3/testsuite/special_functions/18_riemann_zeta/check_value.cc:285:15: error: 'riemann_zeta' is not a member of 'std'

FAIL: special_functions/18_riemann_zeta/check_value.cc (test for excess errors)
Excess errors:
/home/mrs/work1/gcc/libstdc++-v3/testsuite/special_functions/18_riemann_zeta/check_value.cc:285:15: error: 'riemann_zeta' is not a member of 'std'

UNRESOLVED: special_functions/18_riemann_zeta/check_value.cc compilation failed to produce executable
extra_tool_flags are:
 -D__STDCPP_WANT_MATH_SPEC_FUNCS__

on a recent trunk.  This is a typical newlib port.  Not sure if this is a real bug or not, but thought I’d forward it long.