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nim.cfg
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# Configuration file for the Nim Compiler.
# (c) 2017 Andreas Rumpf
# Feel free to edit the default values as you need.
# See https://nim-lang.org/docs/nimc.html
# You may set environment variables with
# @putenv "key" "val"
# Environment variables can be accessed like so:
# gcc.path %= "$CC_PATH"
cc = gcc
# additional options always passed to the compiler:
--parallel_build: "0" # 0 to auto-detect number of processors
@if not nimHasNolineTooLong:
hint[LineTooLong]=off
@end
#hint[XDeclaredButNotUsed]=off
threads:on
# Examples of how to setup a cross-compiler:
# Nim can target architectures and OSes different than the local host
# Syntax: <arch>.<os>.gcc.exe = "<compiler executable>"
# <arch>.<os>.gcc.linkerexe = "<linker executable>"
# ARM e.g. Raspberry Pi 2: gcc-arm-linux-gnueabihf package on Debian/Ubuntu
arm.linux.gcc.exe = "arm-linux-gnueabihf-gcc"
arm.linux.gcc.linkerexe = "arm-linux-gnueabihf-gcc"
# ARM64/aarch64 e.g. Raspberry Pi 3: gcc-aarch64-linux-gnu package on Debian/Ubuntu
arm64.linux.gcc.exe = "aarch64-linux-gnu-gcc"
arm64.linux.gcc.linkerexe = "aarch64-linux-gnu-gcc"
# RISC-V: gcc-riscv64-linux-gnu package on Debian/Ubuntu
riscv32.linux.gcc.exe = "riscv64-linux-gnu-gcc"
riscv32.linux.gcc.linkerexe = "riscv64-linux-gnu-gcc"
riscv64.linux.gcc.exe = "riscv64-linux-gnu-gcc"
riscv64.linux.gcc.linkerexe = "riscv64-linux-gnu-gcc"
# For OpenWRT, you will also need to adjust PATH to point to your toolchain.
mips.linux.gcc.exe = "mips-openwrt-linux-gcc"
mips.linux.gcc.linkerexe = "mips-openwrt-linux-gcc"
path="$lib/deprecated/core"
path="$lib/deprecated/pure"
path="$lib/pure/collections"
path="$lib/pure/concurrency"
path="$lib/impure"
path="$lib/wrappers"
path="$lib/wrappers/linenoise"
path="$lib/windows"
path="$lib/posix"
path="$lib/js"
path="$lib/pure/unidecode"
path="$lib/arch"
path="$lib/core"
path="$lib/pure"
@if not windows:
nimblepath="/opt/nimble/pkgs2/"
nimblepath="/opt/nimble/pkgs/"
@else:
# TODO:
@end
nimblepath="$home/.nimble/pkgs2/"
nimblepath="$home/.nimble/pkgs/"
# Syncronize with compiler/commands.specialDefine
@if danger or quick:
obj_checks:off
field_checks:off
range_checks:off
bound_checks:off
overflow_checks:off
assertions:off
stacktrace:off
linetrace:off
debugger:off
line_dir:off
@end
# Syncronize with compiler/commands.specialDefine
@if release or danger:
stacktrace:off
excessiveStackTrace:off
linetrace:off
debugger:off
line_dir:off
opt:speed
define:release
@end
@if false: # not danger: # this does not work yet.
clang.options.always %= "${clang.options.always} -fsanitize=null -fsanitize-undefined-trap-on-error"
gcc.options.always %= "${gcc.options.always} -fsanitize=null -fsanitize-undefined-trap-on-error"
@end
# Turn off threads support when compiling for bare-metal targets (--os:any)
@if any:
threads:off
@end
@if unix and mingw:
# Cross compile for Windows from Linux/OSX using MinGW
i386.windows.gcc.exe = "i686-w64-mingw32-gcc"
i386.windows.gcc.linkerexe = "i686-w64-mingw32-gcc"
i386.windows.gcc.cpp.exe = "i686-w64-mingw32-g++"
i386.windows.gcc.cpp.linkerexe = "i686-w64-mingw32-g++"
amd64.windows.gcc.exe = "x86_64-w64-mingw32-gcc"
amd64.windows.gcc.linkerexe = "x86_64-w64-mingw32-gcc"
amd64.windows.gcc.cpp.exe = "x86_64-w64-mingw32-g++"
amd64.windows.gcc.cpp.linkerexe = "x86_64-w64-mingw32-g++"
@if macosx:
i386.windows.gcc.path = "/usr/local/bin"
amd64.windows.gcc.path = "/usr/local/bin"
@else:
i386.windows.gcc.path = "/usr/bin"
amd64.windows.gcc.path = "/usr/bin"
@end
os = windows
gcc.options.linker = ""
gcc.cpp.options.linker = ""
@end
@if unix:
@if bsd:
# BSD got posix_spawn only recently, so we deactivate it for osproc:
define:useFork
@elif haiku:
gcc.options.linker = "-Wl,--as-needed -lnetwork"
gcc.cpp.options.linker = "-Wl,--as-needed -lnetwork"
clang.options.linker = "-Wl,--as-needed -lnetwork"
clang.cpp.options.linker = "-Wl,--as-needed -lnetwork"
tcc.options.linker = "-Wl,--as-needed -lnetwork"
@elif not genode:
# -fopenmp
gcc.options.linker = "-ldl"
gcc.cpp.options.linker = "-ldl"
clang.options.linker = "-ldl"
clang.cpp.options.linker = "-ldl"
tcc.options.linker = "-ldl"
@end
@end
@if android:
cc = clang
@if termux:
gcc.options.linker = "-landroid-glob"
gcc.cpp.options.linker = "-landroid-glob"
clang.options.linker = "-landroid-glob"
clang.cpp.options.linker = "-landroid-glob"
tcc.options.linker = "-landroid-glob"
@end
@end
@if nintendoswitch:
cc = "switch_gcc"
switch_gcc.options.linker = "-g -march=armv8-a -mtune=cortex-a57 -mtp=soft -fPIE"
switch_gcc.cpp.options.linker = "-g -march=armv8-a -mtune=cortex-a57 -mtp=soft -fPIE"
switch_gcc.options.always = "-g -Wall -O2 -ffunction-sections -march=armv8-a -mtune=cortex-a57 -mtp=soft -fPIE -D__SWITCH__"
switch_gcc.cpp.options.always = "-g -Wall -O2 -ffunction-sections -march=armv8-a -mtune=cortex-a57 -mtp=soft -fPIE -D__SWITCH__ -fno-rtti -fno-exceptions -std=gnu++11"
@end
# Configuration for the Intel C/C++ compiler:
@if windows:
icl.options.speed = "/Ox /arch:SSE2"
icl.options.always = "/nologo"
@end
# Configuration for the GNU C/C++ compiler:
@if windows:
#gcc.path = r"$nim\dist\mingw\bin"
@if gcc:
gcc.options.linker %= "-Wl,-Bstatic -lpthread"
@end
@if tcc:
tlsEmulation:on
@end
@end
gcc.maxerrorsimpl = "-fmax-errors=3"
@if freebsd or netbsd:
tlsEmulation:off
@elif bsd:
tlsEmulation:on
@end
@if macosx or freebsd or openbsd:
cc = clang
gcc.options.always %= "-w ${gcc.maxerrorsimpl}"
gcc.cpp.options.always %= "-w ${gcc.maxerrorsimpl} -fpermissive"
@elif windows:
gcc.options.always %= "-w ${gcc.maxerrorsimpl} -mno-ms-bitfields"
gcc.cpp.options.always %= "-w ${gcc.maxerrorsimpl} -fpermissive -mno-ms-bitfields"
@else:
gcc.options.always %= "-w ${gcc.maxerrorsimpl}"
gcc.cpp.options.always %= "-w ${gcc.maxerrorsimpl} -fpermissive"
@end
# Configuration for Objective-C compiler:
#
# Options for GNUStep. GNUStep configuration varies wildly, so you'll probably
# have to add additional compiler and linker flags on a per-project basis.
gcc.objc.options.linker = "-lobjc -lgnustep-base"
llvm_gcc.objc.options.linker = "-lobjc -lgnustep-base"
clang.objc.options.linker = "-lobjc -lgnustep-base"
# Options for Mac OS X. Mac OS X uses its own Objective-C stack that is
# totally different from GNUStep.
@if macosx:
gcc.objc.options.linker = "-framework Foundation"
llvm_gcc.objc.options.linker = "-framework Foundation"
clang.objc.options.linker = "-framework Foundation"
@end
# Options for FreeBSD, OpenBSD, NetBSD linker to add locations for searching
# shared libraries.
@if freebsd or openbsd or netbsd:
gcc.options.linker = "-Wl,-rpath=.:/usr/local/lib:/usr/pkg/lib:/usr/X11R6/lib"
gcc.cpp.options.linker = "-Wl,-rpath=.:/usr/local/lib:/usr/pkg/lib:/usr/X11R6/lib"
llvm_gcc.options.linker = "-Wl,-rpath=.:/usr/local/lib:/usr/pkg/lib:/usr/X11R6/lib"
llvm_gcc.cpp.options.linker = "-Wl,-rpath=.:/usr/local/lib:/usr/pkg/lib:/usr/X11R6/lib"
clang.options.linker = "-Wl,-rpath=.:/usr/local/lib:/usr/pkg/lib:/usr/X11R6/lib"
clang.cpp.options.linker = "-Wl,-rpath=.:/usr/local/lib:/usr/pkg/lib:/usr/X11R6/lib"
cincludes: "/usr/local/include"
clibdir: "/usr/local/lib"
@end
@if freebsd or openbsd:
cincludes: "/usr/local/include"
clibdir: "/usr/local/lib"
@elif netbsd:
cincludes: "/usr/pkg/include"
clibdir: "/usr/pkg/lib"
@end
# Configuration for the VxWorks
# This has been tested with VxWorks 6.9 only
@if vxworks:
# For now we only support compiling RTPs applications (i.e. no DKMs)
gcc.options.always = "-mrtp -fno-strict-aliasing -D_C99 -D_HAS_C9X -std=c99 -fasm -Wall -Wno-write-strings"
# The linker config must add the VxWorks common library for the selected
# processor which is usually found in:
# "$WIND_BASE/target/lib/usr/lib/PROCESSOR_FAMILY/PROCESSOR_TYPE/common",
# where PROCESSOR_FAMILY and PROCESSOR_TYPE are those supported by the VxWorks
# compiler (e.g. ppc/PPC32 or mips/MIPSI64, etc)
# For now we only support the PowerPC CPU
gcc.options.linker %= "-L $WIND_BASE/target/lib/usr/lib/ppc/PPC32/common -mrtp -fno-strict-aliasing -D_C99 -D_HAS_C9X -std=c99 -fasm -Wall -Wno-write-strings"
@end
# -fno-math-errno is default in OSX, iOS, BSD, Musl, Libm, LLVM, Clang, ICC.
# See https://itnext.io/why-standard-c-math-functions-are-slow-d10d02554e33
# and https://gcc.gnu.org/onlinedocs/gcc-12.2.0/gcc/Optimize-Options.html#Optimize-Options
gcc.options.speed = "-O3 -fno-strict-aliasing -fno-ident -fno-math-errno"
gcc.options.size = "-Os -fno-ident"
@if windows:
gcc.options.debug = "-g3 -Og -gdwarf-3"
@else:
gcc.options.debug = "-g3 -Og"
@end
gcc.cpp.options.speed = "-O3 -fno-strict-aliasing -fno-ident -fno-math-errno"
gcc.cpp.options.size = "-Os -fno-ident"
gcc.cpp.options.debug = "-g3 -Og"
#passl = "-pg"
# Configuration for the LLVM GCC compiler:
llvm_gcc.options.debug = "-g"
llvm_gcc.options.always = "-w"
llvm_gcc.options.speed = "-O2"
llvm_gcc.options.size = "-Os"
# Configuration for the LLVM CLang compiler:
clang.options.debug = "-g"
clang.cpp.options.debug = "-g"
clang.options.always = "-w -ferror-limit=3"
clang.options.speed = "-O3"
clang.options.size = "-Os"
@if windows:
clang_cl.cpp.options.always %= "${clang_cl.options.always} /EHsc"
@if not release and not safety and not danger:
clang_cl.options.linker = "/Z7"
clang_cl.cpp.options.linker = "/Z7"
@end
clang.options.debug = "-g -gcodeview"
clang.cpp.options.debug = "-g -gcodeview"
@if not release and not safety and not danger:
clang.options.linker = "-g"
clang.cpp.options.linker = "-g"
@end
@end
# Configuration for the Visual C/C++ compiler:
# VCCEXE is a tool that invokes the Visual Studio Developer Command Prompt
# before calling the compiler.
# Please make sure either Visual Studio or C++ Build SKU is installed when using the vcc compiler backend.
vcc.exe = "vccexe.exe"
vcc.cpp.exe = "vccexe.exe"
vcc.linkerexe = "vccexe.exe"
vcc.cpp.linkerexe = "vccexe.exe"
vcc.options.always = "/nologo"
vcc.cpp.options.always = "/nologo /EHsc"
vcc.options.debug = "/Zi /FS /Od"
vcc.cpp.options.debug = "/Zi /FS /Od"
vcc.options.speed = "/O2"
vcc.cpp.options.speed = "/O2"
vcc.options.size = "/O1"
vcc.cpp.options.size = "/O1"
# Configuration for the Tiny C Compiler:
tcc.options.always = "-w"
@if arm or arm64:
--define:nimEmulateOverflowChecks
@end
@if lto or lto_incremental:
@if lto_incremental:
vcc.options.always%= "${vcc.options.always} /GL /Gw /Gy"
vcc.cpp.options.always%= "${vcc.cpp.options.always} /GL /Gw /Gy"
vcc.options.linker %= "${vcc.options.linker} /link /LTCG:incremental"
vcc.cpp.options.linker %= "${vcc.cpp.options.linker} /link /LTCG:incremental"
clang_cl.options.always%= "${clang_cl.options.always} -flto=thin"
clang_cl.cpp.options.always%= "${clang.cpp.options.always} -flto=thin"
clang.options.always%= "${clang.options.always} -flto=thin"
clang.cpp.options.always%= "${clang.cpp.options.always} -flto=thin"
clang.options.linker %= "${clang.options.linker} -flto=thin"
clang.cpp.options.linker %= "${clang.cpp.options.linker} -flto=thin"
@else:
vcc.options.always%= "${vcc.options.always} /GL"
vcc.cpp.options.always%= "${vcc.cpp.options.always} /GL"
vcc.options.linker %= "${vcc.options.linker} /link /LTCG"
vcc.cpp.options.linker %= "${vcc.cpp.options.linker} /link /LTCG"
clang_cl.options.always%= "${clang_cl.options.always} -flto"
clang_cl.cpp.options.always%= "${clang.cpp.options.always} -flto"
clang.options.always%= "${clang.options.always} -flto"
clang.cpp.options.always%= "${clang.cpp.options.always} -flto"
clang.options.linker %= "${clang.options.linker} -flto"
clang.cpp.options.linker %= "${clang.cpp.options.linker} -flto"
@end
icl.options.always %= "${icl.options.always} /Qipo"
icl.cpp.options.always %= "${icl.cpp.options.always} /Qipo"
gcc.options.always %= "${gcc.options.always} -flto=auto"
gcc.cpp.options.always %= "${gcc.cpp.options.always} -flto=auto"
gcc.options.linker %= "${gcc.options.linker} -flto=auto -Wno-stringop-overflow" # https://github.com/nim-lang/Nim/issues/21595
gcc.cpp.options.linker %= "${gcc.cpp.options.linker} -flto=auto"
@end
@if strip:
gcc.options.linker %= "${gcc.options.linker} -s"
gcc.cpp.options.linker %= "${gcc.cpp.options.linker} -s"
clang.options.linker %= "${clang.options.linker} -s"
clang.cpp.options.linker %= "${clang.cpp.options.linker} -s"
@end