diff --git a/pkgs/build-support/cc-wrapper/default.nix b/pkgs/build-support/cc-wrapper/default.nix
index 4758411773b4..a4b4573082f4 100644
--- a/pkgs/build-support/cc-wrapper/default.nix
+++ b/pkgs/build-support/cc-wrapper/default.nix
@@ -804,9 +804,21 @@ stdenvNoCC.mkDerivation {
     # Do not prevent omission of framepointers on x86 32bit due to the small
     # number of general purpose registers. Keeping EBP available provides
     # non-trivial performance benefits.
-    + optionalString (!targetPlatform.isx86_32) ''
-      echo " -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer " >> $out/nix-support/cc-cflags-before
-    ''
+    + (
+      let
+        enable_fp = !targetPlatform.isx86_32;
+        enable_leaf_fp =
+          enable_fp
+          && (
+            targetPlatform.isx86_64
+            || targetPlatform.isAarch64
+            || (targetPlatform.isRiscV && (!isGNU || versionAtLeast ccVersion "15.1"))
+          );
+      in
+      optionalString enable_fp ''
+        echo " -fno-omit-frame-pointer ${optionalString enable_leaf_fp "-mno-omit-leaf-frame-pointer "}" >> $out/nix-support/cc-cflags-before
+      ''
+    )
 
     # For clang, this is handled in add-clang-cc-cflags-before.sh
     + optionalString (!isClang && machineFlags != [ ]) ''
diff --git a/pkgs/development/libraries/pipewire/default.nix b/pkgs/development/libraries/pipewire/default.nix
index e2a81e2ffd95..9e4ad498dc9a 100644
--- a/pkgs/development/libraries/pipewire/default.nix
+++ b/pkgs/development/libraries/pipewire/default.nix
@@ -82,7 +82,7 @@ in
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "pipewire";
-  version = "1.4.4";
+  version = "1.4.5";
 
   outputs = [
     "out"
@@ -98,7 +98,7 @@ stdenv.mkDerivation (finalAttrs: {
     owner = "pipewire";
     repo = "pipewire";
     rev = finalAttrs.version;
-    sha256 = "sha256-ullr00XbYrjwAAkQ6tWRayoS3aFuQsbDpSv06pgBDSA=";
+    sha256 = "sha256-5fBpthIGsvMYrQyRb6n1uiNtJ3pl2ejAFr1e/UUga8w=";
   };
 
   patches = [
diff --git a/pkgs/development/python-modules/meson-python/default.nix b/pkgs/development/python-modules/meson-python/default.nix
index 512a020bd231..c3bbdc6276e3 100644
--- a/pkgs/development/python-modules/meson-python/default.nix
+++ b/pkgs/development/python-modules/meson-python/default.nix
@@ -1,5 +1,6 @@
 {
   lib,
+  stdenv,
   buildPythonPackage,
   fetchPypi,
   pythonOlder,
@@ -82,6 +83,16 @@ buildPythonPackage rec {
     "test_user_args"
     "test_vendored_meson"
   ];
+  # meson-python respectes MACOSX_DEPLOYMENT_TARGET, but compares it with the
+  # actual platform version during tests, which mismatches.
+  # https://github.com/mesonbuild/meson-python/issues/760
+  preCheck =
+    if stdenv.hostPlatform.isDarwin then
+      ''
+        unset MACOSX_DEPLOYMENT_TARGET
+      ''
+    else
+      null;
 
   setupHooks = [ ./add-build-flags.sh ];