Hi,
When updating a port I came across a weird compile error within iostream
if _POSIX_C_SOURCE is set. 200112 and 200809 both error out in different
ways.
$ cat foo.cc
#include <iostream>
int main() {}
$ clang++ -D_POSIX_C_SOURCE=200112 foo.cc
In file included from foo.cc:1:
In file included from /usr/include/c++/v1/iostream:37:
In file included from /usr/include/c++/v1/ios:215:
In file included from /usr/include/c++/v1/__locale:32:
In file included from /usr/include/c++/v1/support/newlib/xlocale.h:25:
/usr/include/c++/v1/support/xlocale/__strtonum_fallback.h:23:64: error: unknown
type name 'locale_t'
char **endptr, locale_t) {
^
/usr/include/c++/v1/support/xlocale/__strtonum_fallback.h:28:65: error: unknown
type name 'locale_t'
char **endptr, locale_t) {
^
/usr/include/c++/v1/support/xlocale/__strtonum_fallback.h:33:71: error: unknown
type name 'locale_t'
...char **endptr, locale_t) {
^
/usr/include/c++/v1/support/xlocale/__strtonum_fallback.h:38:54: error: unknown
type name 'locale_t'
strtoll_l(const char *nptr, char **endptr, int base, locale_t) {
^
/usr/include/c++/v1/support/xlocale/__strtonum_fallback.h:43:55: error: unknown
type name 'locale_t'
strtoull_l(const char *nptr, char **endptr, int base, locale_t) {
^
/usr/include/c++/v1/support/xlocale/__strtonum_fallback.h:48:60: error: unknown
type name 'locale_t'
wcstoll_l(const wchar_t *nptr, wchar_t **endptr, int base, locale_t) {
^
/usr/include/c++/v1/support/xlocale/__strtonum_fallback.h:53:61: error: unknown
type name 'locale_t'
wcstoull_l(const wchar_t *nptr, wchar_t **endptr, int base, locale_t) {
^
/usr/include/c++/v1/support/xlocale/__strtonum_fallback.h:58:74: error: unknown
type name 'locale_t'
...wchar_t **endptr, locale_t) {
^
In file included from foo.cc:1:
In file included from /usr/include/c++/v1/iostream:37:
In file included from /usr/include/c++/v1/ios:215:
/usr/include/c++/v1/__locale:54:25: error: unknown type name 'locale_t'
__libcpp_locale_guard(locale_t& __loc) : __old_loc_(uselocale(__loc)) {}
^
/usr/include/c++/v1/__locale:62:3: error: unknown type name 'locale_t'
locale_t __old_loc_;
^
/usr/include/c++/v1/__locale:132:20: error: use of undeclared identifier
'LC_COLLATE_MASK'
collate = LC_COLLATE_MASK,
^
/usr/include/c++/v1/__locale:133:20: error: use of undeclared identifier
'LC_CTYPE_MASK'
ctype = LC_CTYPE_MASK,
^
/usr/include/c++/v1/__locale:134:20: error: use of undeclared identifier
'LC_MONETARY_MASK'
monetary = LC_MONETARY_MASK,
^
/usr/include/c++/v1/__locale:135:20: error: use of undeclared identifier
'LC_NUMERIC_MASK'
numeric = LC_NUMERIC_MASK,
^
/usr/include/c++/v1/__locale:136:20: error: use of undeclared identifier
'LC_TIME_MASK'
time = LC_TIME_MASK,
^
/usr/include/c++/v1/__locale:137:20: error: use of undeclared identifier
'LC_MESSAGES_MASK'
messages = LC_MESSAGES_MASK,
^
/usr/include/c++/v1/__locale:349:5: error: unknown type name 'locale_t'; did you
mean 'locale'?
locale_t __l;
^
/usr/include/c++/v1/__locale:121:24: note: 'locale' declared here
class _LIBCPP_TYPE_VIS locale
^
/usr/include/c++/v1/__locale:368:5: error: unknown type name 'locale_t'; did you
mean 'locale'?
locale_t __l;
^
/usr/include/c++/v1/__locale:121:24: note: 'locale' declared here
class _LIBCPP_TYPE_VIS locale
^
/usr/include/c++/v1/__locale:740:5: error: unknown type name 'locale_t'; did you
mean 'locale'?
locale_t __l;
^
/usr/include/c++/v1/__locale:121:24: note: 'locale' declared here
class _LIBCPP_TYPE_VIS locale
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
$ clang++ -D_POSIX_C_SOURCE=200809 foo.cc
In file included from foo.cc:1:
In file included from /usr/include/c++/v1/iostream:39:
In file included from /usr/include/c++/v1/istream:163:
In file included from /usr/include/c++/v1/ostream:140:
In file included from /usr/include/c++/v1/locale:207:
/usr/include/c++/v1/__bsd_locale_fallbacks.h:122:17: error: use of undeclared
identifier 'vasprintf'; did you mean 'vsprintf'?
int __res = vasprintf(__s, __format, __va);
^
/usr/include/c++/v1/cstdio:124:9: note: 'vsprintf' declared here
using ::vsprintf;
^
In file included from foo.cc:1:
In file included from /usr/include/c++/v1/iostream:39:
In file included from /usr/include/c++/v1/istream:163:
In file included from /usr/include/c++/v1/ostream:140:
In file included from /usr/include/c++/v1/locale:207:
/usr/include/c++/v1/__bsd_locale_fallbacks.h:122:27: error: cannot initialize a
parameter of type 'char *' with an lvalue of type 'char **'
int __res = vasprintf(__s, __format, __va);
^~~
/usr/include/stdio.h:269:21: note: passing argument to parameter here
int vsprintf(char *, const char *, __va_list);
^
2 errors generated.
