author: Andres Salomon <dilinger@debian.org>

filter_labels_{include,exclude} was added to gn in Feb 2024
(https://gn.googlesource.com/gn/+/e05c0aa00938adc0797bda1e8f2c15675aa13c30%5E%21/),
so obviously bookworm's gn doesn't have it.

The old webrtc code just hardcoded abseil-cpp:absl if building
with chromium, which is simple enough..

--- a/third_party/webrtc/webrtc.gni
+++ b/third_party/webrtc/webrtc.gni
@@ -677,16 +677,13 @@ template("rtc_source_set") {
         "`absl_deps` has been deprecated, add your Abseil dependencies to the `deps` variable.")
 
     # Abseil dependencies need to be converted to //third_party/abseil-cpp:absl when build_with_chromium=true
-    if (build_with_chromium && defined(deps)) {
-      absl_dependencies =
-          filter_labels_include(deps, [ "//third_party/abseil-cpp/*" ])
-      if (absl_dependencies != []) {
-        filtered_deps =
-            filter_labels_exclude(deps, [ "//third_party/abseil-cpp/*" ])
-        deps = []
-        deps = filtered_deps
+    if (build_with_chromium) {
+        if (!defined(deps)) {
+          deps = []
+        }
         deps += [ "//third_party/abseil-cpp:absl" ]
-      }
+    } else {
+        assert("not building with chromium??")
     }
   }
 }
@@ -769,16 +766,13 @@ template("rtc_static_library") {
         "`absl_deps` has been deprecated, add your Abseil dependencies to the `deps` variable.")
 
     # Abseil dependencies need to be converted to //third_party/abseil-cpp:absl when build_with_chromium=true
-    if (build_with_chromium && defined(deps)) {
-      absl_dependencies =
-          filter_labels_include(deps, [ "//third_party/abseil-cpp/*" ])
-      if (absl_dependencies != []) {
-        filtered_deps =
-            filter_labels_exclude(deps, [ "//third_party/abseil-cpp/*" ])
-        deps = []
-        deps = filtered_deps
+    if (build_with_chromium) {
+        if (!defined(deps)) {
+          deps = []
+        }
         deps += [ "//third_party/abseil-cpp:absl" ]
-      }
+    } else {
+        assert("not building with chromium??")
     }
   }
 }
@@ -911,16 +905,13 @@ template("rtc_library") {
         "`absl_deps` has been deprecated, add your Abseil dependencies to the `deps` variable.")
 
     # Abseil dependencies need to be converted to //third_party/abseil-cpp:absl when build_with_chromium=true
-    if (build_with_chromium && defined(deps)) {
-      absl_dependencies =
-          filter_labels_include(deps, [ "//third_party/abseil-cpp/*" ])
-      if (absl_dependencies != []) {
-        filtered_deps =
-            filter_labels_exclude(deps, [ "//third_party/abseil-cpp/*" ])
-        deps = []
-        deps = filtered_deps
+    if (build_with_chromium) {
+        if (!defined(deps)) {
+          deps = []
+        }
         deps += [ "//third_party/abseil-cpp:absl" ]
-      }
+    } else {
+        assert("not building with chromium??")
     }
   }
 }