* [CMAKE] Fix for CMP0018
The new behaviour lets us explicitly disabling position independent code, avoiding the need to change undocumented variables
* LINK_DEPENDS is semicolon separated
* [CMAKE] Fix for CMP0005
it seems impossible to have cmake correct escape PROXY_CLSID_IS so move it to the header
_IMPLICIT_LINK_DIRECTORIES
Othrewise, if you link a RC module with a static C library (as done for
fusion DLLs), you get the standard C libraries from GCC. This is not
what we want.
This might have to be done for MSVC builds. Check build.ninja to verify
this.
There is no need to compile our DLLs as shared libraries since we are
managing symbols exports and imports through spec files.
On my system, this reduces the configure-time by a factor of two.
ReactOS/Windows headers contain lots of structures whose last field is
fieldName[ANYSIZE] or fieldName[1].
Starting with GCC 4.8, gcc considers that accessing items [2], [3], ...
are undefined operation, and may optimize those accesses by removing them!
Add flag -fno-aggressive-loop-optimizations to prevent this unwanted behaviour.
