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Alessandro Rubini authored
While building under ubuntu-12.04 (64 bits, at least), bare builds were failing because of undefined "__stack_chk_fail" and "__strcpy_chk". The former is fixed by passing -ffreestanding to the build of pp_printf (i.e., we now export CFLAGS in the toplevel Makefile), amd the latter is fixing by preventing use of the inline printf function when building for bare architectures. This is from the manpage of gcc under ubuntu-12.04: NOTE: In Ubuntu 8.10 and later versions, -D_FORTIFY_SOURCE=2 is set by default, and is activated when -O is set to 2 or higher. This enables additional compile-time and run-time checks for several libc functions. To disable, specify either -U_FORTIFY_SOURCE or -D_FORTIFY_SOURCE=0. Thanks Aurelio for reporting ./MAKEALL was failing. Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
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