diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/configure b/configure index fe402ea05b..f0cd17580c 100755 --- a/configure +++ b/configure @@ -614,6 +614,7 @@ use_nscd libc_cv_gcc_unwind_find_fde libc_extra_cppflags libc_extra_cflags +libc_cv_cxx_thread_local CPPUNDEFS sizeof_long_double have_selinux @@ -7215,6 +7216,61 @@ if test $libc_cv_builtin_trap = yes; then fi +ac_ext=cpp +ac_cpp='$CXXCPP $CPPFLAGS' +ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C++ compiler supports thread_local" >&5 +$as_echo_n "checking whether the C++ compiler supports thread_local... " >&6; } +if ${libc_cv_cxx_thread_local+:} false; then : + $as_echo_n "(cached) " >&6 +else + +old_CXXFLAGS="$CXXFLAGS" +CXXFLAGS="$CXXFLAGS -std=gnu++11" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include <thread> + +// Compiler support. +struct S +{ + S (); + ~S (); +}; +thread_local S s; +S * get () { return &s; } + +// libstdc++ support. +#ifndef _GLIBCXX_HAVE___CXA_THREAD_ATEXIT_IMPL +#error __cxa_thread_atexit_impl not supported +#endif + +_ACEOF +if ac_fn_cxx_try_compile "$LINENO"; then : + libc_cv_cxx_thread_local=yes +else + libc_cv_cxx_thread_local=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +CXXFLAGS="$old_CXXFLAGS" + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cxx_thread_local" >&5 +$as_echo "$libc_cv_cxx_thread_local" >&6; } + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + ### End of automated tests. ### Now run sysdeps configure fragments. |