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1) When using gnu-efi 4.0 with an application which was written
for gnu-efi 3.0, it may be required to set the `GNU_EFI_3_0_COMPAT` compile flag
this changes the default versions of some changed functions back to their prior
versions
This currently includes the following functions:
- ReallocatePool
Inputs were re-ordered
- CopyMem
Source is no longer marked as constant
CopyMemC is introduced as a helper function when using a constant source input
- CompareGuid
Function now returns BOOLEAN instead of INTN
Return codes are now reversed
**Will break at runtime - likely causing opposite output to expected**
2) Applications which haven't been updated in a while may also be missing the
required `.rodata` section which contains needed read-only data which will prevent
any binary missing this section from running correctly
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