Update tar command

Makefile

@@ -33,7 +33,7 @@ ifeq ($(PLATFORM),web)
 	PRELOADED_FILES = --preload-file img@/img --preload-file fonts@/fonts
 
 	EMS += -s USE_SDL=2 -s USE_ZLIB=1 -s USE_FREETYPE=1 -s USE_LIBPNG=1 -s DISABLE_EXCEPTION_CATCHING=1
-	CPPFLAGS += -I./third_party/cairo-1.16.0/src -O2 $(EMS)
+	CPPFLAGS += -I./third_party/cairo-1.16.0/src -O3 $(EMS)
 	LDFLAGS += -s CASE_INSENSITIVE_FS=1 -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 -s NO_EXIT_RUNTIME=0 -s ASSERTIONS=1 -s ALLOW_MEMORY_GROWTH=1 -s TOTAL_STACK=10000000 -s ASYNCIFY -s FETCH=1 -s FORCE_FILESYSTEM=1 -o bin/index.html --shell-file shell_minimal.html $(PRELOADED_FILES) $(EMS) -L./third_party/cairo-1.16.0/src/.libs -lcairo -L./third_party/pixman-0.40.0/pixman/.libs -lpixman-1
 else
 	CPPFLAGS += $(shell pkg-config --cflags sdl2 glew glfw3 zlib cairo freetype2 libcurl) -Wno-cast-function-type

prepare_web_deps.sh

@@ -1,9 +1,9 @@
 mkdir third_party
 wget -c https://www.cairographics.org/releases/cairo-1.16.0.tar.xz
-C:/msys64/usr/bin/tar.exe -xvf cairo-1.16.0.tar.xz -C third_party
+tar -xvf cairo-1.16.0.tar.xz -C third_party
 rm cairo-1.16.0.tar.xz
 wget -c https://www.cairographics.org/releases/pixman-0.40.0.tar.gz
-C:/msys64/usr/bin/tar.exe -xvf pixman-0.40.0.tar.gz -C third_party
+tar -xvf pixman-0.40.0.tar.gz -C third_party
 rm pixman-0.40.0.tar.gz
 
 cd third_party/pixman-0.40.0