refactor(config.nim): Sync config.nim with the one in nwaku

config.nims

@@ -1,12 +1,103 @@
-# begin Nimble config (version 2)
+# Set up paths
 --noNimblePath
 when withDir(thisDir(), system.fileExists("nimble.paths")):
   include "nimble.paths"
-# end Nimble config
+
+--path:"src"
+
+# Configuration synced with nwaku's - https://github.com/waku-org/nwaku/blob/master/config.nims
+# ---------------------------------------------------- nwaku config ----------------------------------------------------
+if defined(release):
+  switch("nimcache", "nimcache/release/$projectName")
+else:
+  switch("nimcache", "nimcache/debug/$projectName")
+
+if defined(windows):
+  # disable timestamps in Windows PE headers - https://wiki.debian.org/ReproducibleBuilds/TimestampsInPEBinaries
+  switch("passL", "-Wl,--no-insert-timestamp")
+  # increase stack size
+  switch("passL", "-Wl,--stack,8388608")
+  # https://github.com/nim-lang/Nim/issues/4057
+  --tlsEmulation:off
+  if defined(i386):
+    # set the IMAGE_FILE_LARGE_ADDRESS_AWARE flag so we can use PAE, if enabled, and access more than 2 GiB of RAM
+    switch("passL", "-Wl,--large-address-aware")
+
+  # The dynamic Chronicles output currently prevents us from using colors on Windows
+  # because these require direct manipulations of the stdout File object.
+  switch("define", "chronicles_colors=off")
+
+# https://github.com/status-im/nimbus-eth2/blob/stable/docs/cpu_features.md#ssse3-supplemental-sse3
+# suggests that SHA256 hashing with SSSE3 is 20% faster than without SSSE3, so
+# given its near-ubiquity in the x86 installed base, it renders a distribution
+# build more viable on an overall broader range of hardware.
+#
+if defined(disableMarchNative):
+  if defined(i386) or defined(amd64):
+    if defined(macosx):
+      # macOS Catalina is EOL as of 2022-09
+      # https://support.apple.com/kb/sp833
+      # "macOS Big Sur - Technical Specifications" lists current oldest
+      # supported models: MacBook (2015 or later), MacBook Air (2013 or later),
+      # MacBook Pro (Late 2013 or later), Mac mini (2014 or later), iMac (2014
+      # or later), iMac Pro (2017 or later), Mac Pro (2013 or later).
+      #
+      # These all have Haswell or newer CPUs.
+      #
+      # This ensures AVX2, AES-NI, PCLMUL, BMI1, and BMI2 instruction set support.
+      switch("passC", "-march=haswell -mtune=generic")
+      switch("passL", "-march=haswell -mtune=generic")
+    else:
+      if defined(marchOptimized):
+        # https://github.com/status-im/nimbus-eth2/blob/stable/docs/cpu_features.md#bmi2--adx
+        switch("passC", "-march=broadwell -mtune=generic")
+        switch("passL", "-march=broadwell -mtune=generic")
+      else:
+        switch("passC", "-mssse3")
+        switch("passL", "-mssse3")
+elif defined(macosx) and defined(arm64):
+  # Apple's Clang can't handle "-march=native" on M1: https://github.com/status-im/nimbus-eth2/issues/2758
+  switch("passC", "-mcpu=apple-m1")
+  switch("passL", "-mcpu=apple-m1")
+else:
+  switch("passC", "-march=native")
+  switch("passL", "-march=native")
+  if defined(windows):
+    # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65782
+    # ("-fno-asynchronous-unwind-tables" breaks Nim's exception raising, sometimes)
+    switch("passC", "-mno-avx512f")
+    switch("passL", "-mno-avx512f")
+
 
 --threads:on
 --opt:speed
 --excessiveStackTrace:on
 # enable metric collection
 --define:metrics
---path:"src"
+# for heap-usage-by-instance-type metrics and object base-type strings
+--define:nimTypeNames
+
+switch("define", "withoutPCRE")
+
+# the default open files limit is too low on macOS (512), breaking the
+# "--debugger:native" build. It can be increased with `ulimit -n 1024`.
+if not defined(macosx):
+  # add debugging symbols and original files and line numbers
+  --debugger:native
+  if not (defined(windows) and defined(i386)) and not defined(disable_libbacktrace):
+    # light-weight stack traces using libbacktrace and libunwind
+    --define:nimStackTraceOverride
+    switch("import", "libbacktrace")
+
+--define:nimOldCaseObjects # https://github.com/status-im/nim-confutils/issues/9
+
+# `switch("warning[CaseTransition]", "off")` fails with "Error: invalid command line option: '--warning[CaseTransition]'"
+switch("warning", "CaseTransition:off")
+
+# The compiler doth protest too much, methinks, about all these cases where it can't
+# do its (N)RVO pass: https://github.com/nim-lang/RFCs/issues/230
+switch("warning", "ObservableStores:off")
+
+# Too many false positives for "Warning: method has lock level <unknown>, but another method has 0 [LockLevel]"
+switch("warning", "LockLevel:off")
+# ----------------------------------------------------------------------------------------------------------------------