Update to v106r33 release.

byuu says:

Changelog:

  - nall/GNUmakefile: added `openmp=(true,false)` option; can be toggled
    when building higan/bsnes
      - defaults to disabled on macOS, because Xcode doesn't stupidly
        doesn't ship with support for it
  - higan/GNUmakefile: forgot to switch target,profile back from
    bsnes,fast to higan,accurate
      - this is just gonna happen from time to time, sorry
  - sfc/dsp: when using the fast profile, the DSP syncs per sample
    instead of per clock
      - should only negatively impact Koushien 2, but is a fairly
        significant speedup otherwise
  - sfc/ppc,ppu-fast: optimized the code a bit (ppu 130fps to 133fps)
  - sfc/ppu-fast: basic vertical mosaic support (not accurate, but
    should look okay hopefully)
  - sfc/ppu-fast: added missing mode7 hflip support
  - sfc/ppu-fast: added support to render at 256-width and/or 240-height
      - gives a decent speed boost, and also allows all of the older
        quark shaders to work nicely again
      - it does violate the contract of Emulator::Interface, but oh
        well, it works fine in the bsnes GUI
  - sfc/ppu-fast: use cached CGRAM values for mode7 and sprites
  - sfc/ppu-fast: use global range/time over flags in object rendering
      - may not actually work as we intended since it's a race condition
        even if it's only ORing the flags
      - really don't want to have to make those variables atomic if I
        don't have to
  - sfc/ppu-fast: should fully support interlace and overscan modes now
  - hiro/cocoa: updated macOS Gatekeeper disable support to work on
    10.13+
  - ruby: forgot to fix macOS input driver, sorry
  - nall/GNUmakefile: if uname is present, then just default to rm
    instead of del (fixes Msys)

Note: blur emulation option will break pretty badly in 256x240 output
mode. I'll fix it later.

nall/GNUmakefile

@@ -12,34 +12,31 @@ MAKEFLAGS := Rr
 
 # platform detection
 ifeq ($(platform),)
-  uname := $(shell uname -s)
+  uname := $(shell uname)
   ifeq ($(uname),)
     platform := windows
-    rm = del /q $(subst /,\,$1)
-    rmdir = del /s /q $(subst /,\,$1) && if exist $(subst /,\,$1) (rmdir /s /q $(subst /,\,$1))
   else ifneq ($(findstring Windows,$(uname)),)
     platform := windows
-    rm = del /q $(subst /,\,$1)
-    rmdir = del /s /q $(subst /,\,$1) && if exist $(subst /,\,$1) (rmdir /s /q $(subst /,\,$1))
-  else ifneq ($(findstring _NT,$(uname)),)
+  else ifneq ($(findstring NT,$(uname)),)
     platform := windows
-    rm = del /q $(subst /,\,$1)
-    rmdir = del /s /q $(subst /,\,$1) && if exist $(subst /,\,$1) (rmdir /s /q $(subst /,\,$1))
   else ifneq ($(findstring Darwin,$(uname)),)
     platform := macos
-    rm = rm -f $1
-    rmdir = rm -rf $1
   else ifneq ($(findstring Linux,$(uname)),)
     platform := linux
-    rm = rm -f $1
-    rmdir = rm -rf $1
   else ifneq ($(findstring BSD,$(uname)),)
     platform := bsd
-    rm = rm -f $1
-    rmdir = rm -rf $1
   else
     $(error unknown platform, please specify manually.)
   endif
+
+  # common commands
+  ifeq ($(uname),)
+    rm = del /q $(subst /,\,$1)
+    rmdir = del /s /q $(subst /,\,$1) && if exist $(subst /,\,$1) (rmdir /s /q $(subst /,\,$1))
+  else
+    rm = rm -f $1
+    rmdir = rm -rf $1
+  endif
 endif
 
 cflags := -x c -std=c11
@@ -78,6 +75,15 @@ else ifeq ($(build),performance)
   flags += -O3 -DBUILD_PERFORMANCE
 endif
 
+# openmp support
+ifeq ($(openmp),true)
+  # macOS Xcode does not ship with OpenMP support
+  ifneq ($(platform),macos)
+    flags += -fopenmp
+    link += -fopenmp
+  endif
+endif
+
 # clang settings
 ifeq ($(findstring clang++,$(compiler)),clang++)
   flags += -fno-strict-aliasing -fwrapv