Cmake rework

[yuguen]

No description provided.

[whitepau]

some minor changes. FYI the link.txt does not appear on Windows, and when i try to compile, I get this error and cannot debug it:

D:\whitepau\build_2023-0>nmake fpga_emu

Microsoft (R) Program Maintenance Utility Version 14.27.29111.0
Copyright (C) Microsoft Corporation.  All rights reserved.

Scanning dependencies of target displayEmulationCommands
[ 25%] Find the compile command in D:/whitepau/build_2023-0/compile_commands.json (the one using FPGA_EMULATOR) and the link command in D:/whitepau/build_2023-0/CMakeFiles/fpga_emu.dir/link.txt
[ 25%] Built target displayEmulationCommands
Scanning dependencies of target fpga_emu
[ 50%] Building CXX object CMakeFiles/fpga_emu.dir/src/fpga_template.cpp.obj
Intel(R) oneAPI DPC++/C++ Compiler for applications running on Intel(R) 64, Version 2023.0.0 Build 20221201
Copyright (C) 1985-2022 Intel Corporation. All rights reserved.

[ 75%] Building CXX object CMakeFiles/fpga_emu.dir/src/source2.cpp.obj
Intel(R) oneAPI DPC++/C++ Compiler for applications running on Intel(R) 64, Version 2023.0.0 Build 20221201
Copyright (C) 1985-2022 Intel Corporation. All rights reserved.

NMAKE : fatal error U1073: don't know how to make '\Qactypes'
Stop.
NMAKE : fatal error U1077: 'C:\devstudio2019\VC\Tools\MSVC\14.27.29110\bin\HostX64\x64\nmake.exe' : return code '0x2'
Stop.
NMAKE : fatal error U1077: 'C:\devstudio2019\VC\Tools\MSVC\14.27.29110\bin\HostX64\x64\nmake.exe' : return code '0x2'
Stop.
NMAKE : fatal error U1077: 'C:\devstudio2019\VC\Tools\MSVC\14.27.29110\bin\HostX64\x64\nmake.exe' : return code '0x2'
Stop.

D:\whitepau\build_2023-0>

[whitepau]

Suggested change

	# Sanitize the include path
	separate_arguments(INCLUDEPATHS_LIST)
	# Sanitize the include path
	if (WIN32)
	separate_arguments(INCLUDEPATHS_LIST WINDOWS_COMMAND ${INCLUDEPATHS_LIST})
	endif(WIN32)
	if (UNIX)
	separate_arguments(INCLUDEPATHS_LIST UNIX_COMMAND ${INCLUDEPATHS_LIST})
	endif(UNIX)

[yuguen]

I don't understand the point of this

[whitepau]

here are some improvements to add link files support.

Note that the outputs don't reflect the linker arguments:

To link manually:
/p/psg/swip/hld/r/sycl/rel/20221202/linux64/bin/icpx -fsycl -fintelfpga -qactypes -o libsample.fpga_emu CMakeFiles/fpga_emu.dir/src/fpga_template.cpp.o CMakeFiles/fpga_emu.dir/src/functionality.cpp.o

From VERBOSE=1:

/p/psg/swip/hld/r/sycl/rel/20221202/linux64/bin/icpx      CMakeFiles/fpga_emu.dir/src/fpga_template.cpp.o CMakeFiles/fpga_emu.dir/src/functionality.cpp.o  -o libsample.fpga_emu  -L/nfs/site/disks/swuser_work_whitepau/ff-lib/lib -Wl,-rpath,/nfs/site/disks/swuser_work_whitepau/ff-lib/lib -lff -fsycl -fintelfpga -qactypes 

A working version is here: https://github.com/intel-sandbox/whitepau.ff-example

[whitepau]

Suggested change

	set(USER_INCLUDE_PATHS "${USER_INCLUDE_PATHS} ../../../include")
	set(USER_INCLUDE_PATHS "${USER_INCLUDE_PATHS} ../../../include /nfs/site/disks/swuser_work_whitepau/ff-lib/include")
	# Use cmake -DUSER_LIB_PATHS=<paths> to set extra paths to target_link_libraries
	set(USER_LIB_PATHS "${USER_LIB_PATHS} /nfs/site/disks/swuser_work_whitepau/ff-lib/lib")
	# Use cmake -DUSER_LIBS=<libs> to add extra static libraries
	set(USER_LIBS "${USER_LIBS} ff")

you don't have to include the ff library that I used

[whitepau]

some small changes