[Boost-users] boost-1.33, [date_time]: missing std::localtime_r/gmtime_r

From: Michael Haubenwallner (michael.haubenwallner_at_[hidden])
Date: 2005-09-09 07:44:00

Hi,

There's a problem on HP-UX (especially hppa2.0w-hp-hpux11.11) with gcc-3.3.6,
where localtime_r and gmtime_r are not in namespace std.

boost-1.33 itself is built with "<cxxflags>-pthread/<linkflags>-pthread"

$ cat xx.cc
#include <boost/date_time/posix_time/posix_time_system.hpp>

$ g++ -pthread xx.cc
In file included from /tools/snapshot/toolsbox-3.5.0.16rc.20050904/HP-UX/boost/include/boost/date_time/date_clock_device.hpp:12,
                 from /tools/snapshot/toolsbox-3.5.0.16rc.20050904/HP-UX/boost/include/boost/date_time/gregorian/gregorian_types.hpp:26,
                 from /tools/snapshot/toolsbox-3.5.0.16rc.20050904/HP-UX/boost/include/boost/date_time/posix_time/posix_time_config.hpp:14,
                 from /tools/snapshot/toolsbox-3.5.0.16rc.20050904/HP-UX/boost/include/boost/date_time/posix_time/posix_time_system.hpp:13,
                 from xx.cc:1:
/tools/snapshot/toolsbox-3.5.0.16rc.20050904/HP-UX/boost/include/boost/date_time/c_time.hpp: In
   static member function `static tm* boost::date_time::c_time::localtime(const 
   time_t*, tm*)':
/tools/snapshot/toolsbox-3.5.0.16rc.20050904/HP-UX/boost/include/boost/date_time/c_time.hpp:56: error: `
   localtime_r' undeclared in namespace `std'
/tools/snapshot/toolsbox-3.5.0.16rc.20050904/HP-UX/boost/include/boost/date_time/c_time.hpp: In
   static member function `static tm* boost::date_time::c_time::gmtime(const 
   time_t*, tm*)':
/tools/snapshot/toolsbox-3.5.0.16rc.20050904/HP-UX/boost/include/boost/date_time/c_time.hpp:64: error: `
   gmtime_r' undeclared in namespace `std'
$ 

$ gcc -v
Reading specs from /mnt/toolsjunk/snapshot/toolsbox-3.5.0.16rc.20050904/HP-UX/lib/gcc-lib/hppa2.0w-hp-hpux11.11/3.3.6/specs
Configured with: /mnt/toolsjunk/snapshot/src/sasrvb/toolsbox-3.5.0.16rc.20050904/buildroot/gcc/gcc-3.3.6/configure --with-gnu-as --with-as=/tools/snapshot/toolsbox-3.5.0.16rc.20050904/HP-UX/hppa2.0w-hp-hpux11.11/bin/as --without-gnu-ld --with-ld=/usr/ccs/bin/ld --enable-threads=posix --with-local-prefix=/tools/snapshot/toolsbox-3.5.0.16rc.20050904/HP-UX --disable-nls --prefix=/tools/snapshot/toolsbox-3.5.0.16rc.20050904/HP-UX
Thread model: posix
gcc version 3.3.6

Two maybe interesting notes:

1)
/usr/include/time.h only declares localtime_r/gmtime_r if '-pthread'
compiler-flag is used (and therefore _REENTRANT is defined).

2)
gcc-shipped <ctime> does not pull localtime_r/gmtime_r into namespace std

Thanks!

~haubi
-- 
Michael Haubenwallner                    SALOMON Automation GmbH
Forschung & Entwicklung                  A-8114 Friesach bei Graz
mailto:michael.haubenwallner_at_[hidden]  http://www.salomon.at
No HTML/MIME please, see http://expita.com/nomime.html