On Sat, May 16, 2015 at 5:35 PM, Hans-Peter Nilsson <h...@bitrange.com> wrote: > On Thu, 23 Apr 2015, Bin.Cheng wrote: >> Hi, >> In libstdc++ testsuite, I noticed that macro _GLIBCXX_RES_LIMITS is >> checked/set by GLIBCXX_CHECK_SETRLIMIT, which is further guarded by >> GLIBCXX_IS_NATIVE as below: >> >> AC_DEFUN([GLIBCXX_CONFIGURE_TESTSUITE], [ >> if $GLIBCXX_IS_NATIVE ; then >> # Do checks for resource limit functions. >> GLIBCXX_CHECK_SETRLIMIT >> >> # Look for setenv, so that extended locale tests can be performed. >> GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3(setenv) >> fi >> >> For cross toolchain like arm-linux, _GLIBCXX_RES_LIMITS isn't set. As >> a result, function __gnu_test::set_file_limit is actually nullified >> and causing case 27_io/fpos/14775.cc failed. >> >> My question is why we want to guard the check with GLIBCXX_IS_NATIVE? >> Could we check it directly, if it's not supported, it's going to fail >> and undef the macro anyway? >> >> >> Thanks, >> bin >> > > Good question. I'm CC:ing the libstdc++ list, maybe that'll > bring an answer before another 1.5 months.
Ah, thank you for helping, and I can wait another 1.5 months :) Thanks, bin > > brgds, H-P
