diff options
Diffstat (limited to 'gold/configure.ac')
| -rw-r--r-- | gold/configure.ac | 32 |
1 files changed, 27 insertions, 5 deletions
diff --git a/gold/configure.ac b/gold/configure.ac index eb4416a..aefd617 100644 --- a/gold/configure.ac +++ b/gold/configure.ac @@ -152,8 +152,25 @@ AM_CONDITIONAL(FN_PTRS_IN_SO_WITHOUT_PIC, [ esac]) dnl Test for __thread support. -AC_COMPILE_IFELSE([__thread int i = 1;], [tls=yes], [tls=no]) -AM_CONDITIONAL(TLS, test "$tls" = "yes") +AC_CACHE_CHECK([for thread support], [gold_cv_c_thread], +[AC_COMPILE_IFELSE([__thread int i = 1;], +[gold_cv_c_thread=yes], [gold_cv_c_thread=no])]) + +AM_CONDITIONAL(TLS, test "$gold_cv_c_thread" = "yes") + +dnl On GNU/Linux TLS in static programs only works when using glibc +dnl 2.4 or later. +AC_CACHE_CHECK([for glibc >= 2.4], [gold_cv_lib_glibc24], +[AC_COMPILE_IFELSE([ +#include <features.h> +#if !defined __GLIBC__ +error +#elif __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 4) +error +#endif +], [gold_cv_lib_glibc24=yes], [gold_cv_lib_glibc24=no])]) + +AM_CONDITIONAL(STATIC_TLS, test "$gold_cv_lib_glibc24" = "yes") AM_BINUTILS_WARNINGS @@ -174,12 +191,17 @@ AC_CHECK_HEADERS(ext/hash_map ext/hash_set) AC_CHECK_FUNCS(mallinfo) dnl Test whether the compiler can specify a member templates to call. -AC_COMPILE_IFELSE([ +AC_CACHE_CHECK([template member calls], [gold_cv_c_membertemplates], +[AC_COMPILE_IFELSE([ class c { public: template<int i> void fn(); }; template<int i> void foo(c cv) { cv.fn<i>(); } template void foo<1>(c cv);], -[AC_DEFINE(HAVE_MEMBER_TEMPLATE_SPECIFICATIONS, [], - [Whether the C++ compiler can call a template member with no arguments])]) +[gold_cv_c_membertemplates=yes], [gold_cv_c_membertemplates=no])]) + +if test "$gold_cv_c_membertemplates" = "yes"; then + AC_DEFINE(HAVE_MEMBER_TEMPLATE_SPECIFICATIONS, [], + [Whether the C++ compiler can call a template member with no arguments]) +fi AC_LANG_POP(C++) |