remove -U_FORTIFY_SOURCE from cmake

[PetrusZ]

UxPlay/lib/CMakeLists.txt

Line 19 in 66f92b0

set( CMAKE_C_FLAGS "-DSTANDALONE -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS -DTARGET_POSIX -D_LINUX -fPIC -DPIC -D_REENTRANT -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -U_FORTIFY_SOURCE -Wall ${CMAKE_C_FLAGS}" )

FORTIFY_SOURCE is a GCC and GLIBC security feature that attempts to detect certain classes of buffer overflows. Its enabled by default on most Linux platforms.

It can be turned off with -D_FORTIFY_SOURCE=0 or -U_FORTIFY_SOURCE. However, its usually not appropriate to disable FORTIFY_SOURCE in production software.

I did a basic test, after removing -U_FORTIFY_SOURCE, uxplay builds success and it is running normally too.

See also:

1. https://bugs.gentoo.org/889044 (detail is in the attachment)
2. https://stackoverflow.com/tags/fortify-source/info

[fduncanh]

OK
I removed --U_FORTIFY_SOURCE and re-released 1.61 as 1.61.1

If necessary I'll release it as 1.62 later if 1.61.1 messes up Arch or Debian releases

[PetrusZ]

Thank you, again!