diff --git a/makefile b/makefile
index b08506ccf2e..c53143ab4d2 100644
--- a/makefile
+++ b/makefile
@@ -82,7 +82,6 @@
 # OPENMP = 1
 # FASTDEBUG = 1
 
-# FILTER_DEPS = 1
 # SEPARATE_BIN = 1
 # PYTHON_EXECUTABLE = python3
 # SHADOW_CHECK = 1
@@ -637,10 +636,6 @@ ifdef FASTDEBUG
 PARAMS += --FASTDEBUG='$(FASTDEBUG)'
 endif
 
-ifdef FILTER_DEPS
-PARAMS += --FILTER_DEPS='$(FILTER_DEPS)'
-endif
-
 ifdef SEPARATE_BIN
 PARAMS += --SEPARATE_BIN='$(SEPARATE_BIN)'
 endif
diff --git a/scripts/depfilter.awk b/scripts/depfilter.awk
deleted file mode 100644
index 74f3cce9ce7..00000000000
--- a/scripts/depfilter.awk
+++ /dev/null
@@ -1,25 +0,0 @@
-function base_dir(f)
-{
-	ne = split(f, s, "/")
-	for(k=ne;k>=1 && s[k] != "src";k--);
-	r = s[k]
-	for(j=k+1;j<ne;j++)
-		r = r "/" s[j]
-	return r
-}
-
-{
-	for(i=1; i<=NF; i++) {
-		if($i != "\\") {
-			ff = $i
-			fd = base_dir(ff)
-			if(substr(ff,length(ff)) == ":") {
-				root_dir = fd
-			} else if(fd != root_dir) {
-				if(fd == "src/emu" || fd == "src/osd" || fd == "src/lib/util")
-					$i = ""
-			}
-		}
-	}
-	print
-}
\ No newline at end of file
diff --git a/scripts/genie.lua b/scripts/genie.lua
index c240d087edc..93cde1c42b1 100644
--- a/scripts/genie.lua
+++ b/scripts/genie.lua
@@ -327,15 +327,6 @@ newoption {
 	}
 }
 
-newoption {
-	trigger = "FILTER_DEPS",
-	description = "Filter dependency files.",
-	allowed = {
-		{ "0",   "Disabled" 	},
-		{ "1",   "Enabled"      },
-	}
-}
-
 newoption {
 	trigger = "SEPARATE_BIN",
 	description = "Use separate bin folders.",
@@ -488,36 +479,6 @@ configuration { "Release", "vs*" }
 
 configuration {}
 
-local AWK = ""
-if (os.is("windows")) then
-	AWK_TEST = backtick("awk --version 2> NUL")
-	if (AWK_TEST~='') then
-		AWK = "awk"
-	else
-		AWK_TEST = backtick("gawk --version 2> NUL")
-		if (AWK_TEST~='') then
-			AWK = "gawk"
-		end
-	end
-else
-	AWK_TEST = backtick("awk --version 2> /dev/null")
-	if (AWK_TEST~='') then
-		AWK = "awk"
-	else
-		AWK_TEST = backtick("gawk --version 2> /dev/null")
-		if (AWK_TEST~='') then
-			AWK = "gawk"
-		end
-	end
-end
-
-if (_OPTIONS["FILTER_DEPS"]=="1") and (AWK~='') then
-	postcompiletasks {
-		AWK .. " -f ../../../../../scripts/depfilter.awk $(@:%.o=%.d) > $(@:%.o=%.dep)",
-		"mv $(@:%.o=%.dep) $(@:%.o=%.d)",
-	}
-end
-
 msgcompile ("Compiling $(subst ../,,$<)...")
 
 msgcompile_objc ("Objective-C compiling $(subst ../,,$<)...")