On 22/03/2013 09:56, Kai Tietz wrote:
> Hi,
>
> this patch adds required configure changes for new cygwin x64 target.
> Index: gcc/configure.ac
> ===================================================================
> --- gcc/configure.ac (Revision 196898)
> +++ gcc/configure.ac (Arbeitskopie)
> @@ -3623,7 +3623,7 @@ changequote([,])dnl
> # wrappers to aid in interposing and redirecting operators new, delete,
> # etc., as per n2800 #17.6.4.6 [replacement.functions]. Check if we
> # are configuring for a version of Cygwin that exports the wrappers.
> - if test x$host = x$target; then
> + if test x$host = x$target && test x$host_cpu = xi686; then
>
> AC_CHECK_FUNC([__wrap__Znaj],[gcc_ac_cygwin_dll_wrappers=yes],[gcc_ac_cygwin_dll_wrappers=no])
> else
> # Can't check presence of libc functions during cross-compile, so
Rather than just bailing on x86_64, shouldn't this code check for the
presence of one of the 64-bit versions of the C++ wrapper functions such as
__wrap__Znam instead?
> Index: libgcc/config.host
> ===================================================================
> --- libgcc/config.host (Revision 196898)
> +++ libgcc/config.host (Arbeitskopie)
> @@ -564,13 +564,30 @@ i[34567]86-*-cygwin*)
> tmake_eh_file="i386/t-dw2-eh"
> fi
> # Shared libgcc DLL install dir depends on cross/native build.
> - if test x${build} = x${host} ; then
> + if test x${host} = x${target} ; then
I don't get this. We're compiling a target library, so only build and host
are correct to use, AIUI; $target may still be set by accident, but it's not
meaningful when building a target lib.
> # Shared libgcc DLL install dir depends on cross/native build.
> - if test x${build} = x${host} ; then
> + if test x${host} = x${target} ; then
Same here.
cheers,
DaveK
