nim-ethash/nim.cfg

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# Nim eth compilation flag config
#### From default nim.cfg, somehow it's not taken into account with a custom nim.cfg
@if release or quick:
obj_checks:off
field_checks:off
range_checks:off
bound_checks:off
overflow_checks:off
assertions:off
stacktrace:off
linetrace:off
debugger:off
line_dir:off
dead_code_elim:on
@end
@if release:
opt:speed
@end
# Configuration for GCC compiler:
gcc.options.speed = "-O3 -fno-strict-aliasing"
gcc.options.size = "-Os"
@if windows:
gcc.options.debug = "-g3 -O0 -gdwarf-3"
@else:
gcc.options.debug = "-g3 -O0"
@end
gcc.cpp.options.speed = "-O3 -fno-strict-aliasing"
gcc.cpp.options.size = "-Os"
gcc.cpp.options.debug = "-g3 -O0"
# Configuration for the LLVM Clang compiler:
clang.options.debug = "-g"
clang.options.always = "-w"
clang.options.speed = "-O3"
clang.options.size = "-Os"
#######
@if openmp:
# stackTrace:off # Stack traces are already removed selectively in the code
# Otherwise heap alloc from string will crash the program
@if macosx: # Default compiler on Mac is clang without OpenMP and gcc is an alias to clang.
# Use Homebrew GCC instead for OpenMP support. GCC (v7), must be properly linked via `brew link gcc`
cc:"gcc"
gcc.exe:"/usr/local/bin/gcc-7"
gcc.linkerexe:"/usr/local/bin/gcc-7"
@end
@end