Displaying 2 results from an estimated 2 matches for "xiph_stack_check_old_cflags".
2013 Mar 12
2
Can't cross-compile from git now.
Erik de Castro Lopo wrote:
> JonY wrote:
>
> > Please do a link time test instead, I am not getting this error and
> > would like to keep stack protector on.
>
> I'll write an m4 macro.
I have attampted to write a macro that reliably detects the availability
of stack smash protection.
I currently have two configurations where my detection says that SSP is
available
2013 Mar 12
3
Can't cross-compile from git now.
JonY wrote:
> What is your link test checking and how does it fail?
My m4 macro is really simple, TRY_LINK a simple program with the
stack protect CFLAGS:
AC_DEFUN([XIPH_GCC_STACK_PROTECTOR],
[AC_LANG_ASSERT(C)
AC_MSG_CHECKING([if $CC supports stack smash protection])
xiph_stack_check_old_cflags="$CFLAGS"
SSP_FLAGS="-fstack-protector --param ssp-buffer-size=4"
CFLAGS=$SSP_FLAGS
AC_TRY_LINK([
#include <stdio.h>
],
[puts("Hello, World!"); return 0;],
AC_MSG_RESULT([yes])
CFLAGS="$xiph_stack_check_old_cflags $SSP_FLAGS",
AC_MSG_R...