6 files changed, 7 insertions, 7 deletions
diff --git a/pkgs/misc/cups/drivers/cups-bjnp/default.nix b/pkgs/misc/cups/drivers/cups-bjnp/default.nix
index 5a6ea08a8e1..6c8c8f21a3a 100644
--- a/pkgs/misc/cups/drivers/cups-bjnp/default.nix
+++ b/pkgs/misc/cups/drivers/cups-bjnp/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   preConfigure = ''configureFlags="--with-cupsbackenddir=$out/lib/cups/backend"'';
 
   buildInputs = [cups];
-  NIX_CFLAGS_COMPILE = [
+  env.NIX_CFLAGS_COMPILE = toString [
     "-include stdio.h"
     "-Wno-error=stringop-truncation"
     "-Wno-error=deprecated-declarations"
diff --git a/pkgs/misc/drivers/foomatic-filters/default.nix b/pkgs/misc/drivers/foomatic-filters/default.nix
index b1095768691..c9a7d10bd8b 100644
--- a/pkgs/misc/drivers/foomatic-filters/default.nix
+++ b/pkgs/misc/drivers/foomatic-filters/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
   # gcc-10. Otherwise build fails as:
   #   ld: foomatic_rip-options.o:/build/foomatic-filters-4.0.17/options.c:49: multiple definition of
   #     `cupsfilter'; foomatic_rip-foomaticrip.o:/build/foomatic-filters-4.0.17/foomaticrip.c:158: first defined here
-  NIX_CFLAGS_COMPILE = "-fcommon";
+  env.NIX_CFLAGS_COMPILE = "-fcommon";
 
   installTargets = [ "install-cups" ];
 
diff --git a/pkgs/misc/drivers/utsushi/default.nix b/pkgs/misc/drivers/utsushi/default.nix
index 464bc12f491..e33a40f0ad5 100644
--- a/pkgs/misc/drivers/utsushi/default.nix
+++ b/pkgs/misc/drivers/utsushi/default.nix
@@ -56,7 +56,7 @@ in stdenv.mkDerivation rec {
     libusb1.dev
   ];
 
-  NIX_CFLAGS_COMPILE = [
+  env.NIX_CFLAGS_COMPILE = toString [
     "-Wno-error=deprecated-declarations"
     "-Wno-error=parentheses"
     "-Wno-error=unused-variable"
diff --git a/pkgs/misc/logging/pacemaker/default.nix b/pkgs/misc/logging/pacemaker/default.nix
index 7d8cd24e3d8..ff2579aa865 100644
--- a/pkgs/misc/logging/pacemaker/default.nix
+++ b/pkgs/misc/logging/pacemaker/default.nix
@@ -76,9 +76,9 @@ stdenv.mkDerivation rec {
 
   installFlags = [ "DESTDIR=${placeholder "out"}" ];
 
-  NIX_CFLAGS_COMPILE = lib.optionals stdenv.cc.isGNU [
+  env.NIX_CFLAGS_COMPILE = toString (lib.optionals stdenv.cc.isGNU [
     "-Wno-error=strict-prototypes"
-  ];
+  ]);
 
   enableParallelBuilding = true;
 
diff --git a/pkgs/misc/screensavers/rss-glx/default.nix b/pkgs/misc/screensavers/rss-glx/default.nix
index 2bcb42e85ec..3ec89194df8 100644
--- a/pkgs/misc/screensavers/rss-glx/default.nix
+++ b/pkgs/misc/screensavers/rss-glx/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
     ./cstddef.patch
   ];
 
-  NIX_CFLAGS_COMPILE = "-I${imagemagick6.dev}/include/ImageMagick";
+  env.NIX_CFLAGS_COMPILE = "-I${imagemagick6.dev}/include/ImageMagick";
 
   meta = {
     description = "Really Slick Screensavers Port to GLX";
diff --git a/pkgs/misc/screensavers/xscreensaver/default.nix b/pkgs/misc/screensavers/xscreensaver/default.nix
index d2a6dfcec95..ea8ba9d042b 100644
--- a/pkgs/misc/screensavers/xscreensaver/default.nix
+++ b/pkgs/misc/screensavers/xscreensaver/default.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation rec {
   ];
 
   # "marbling" has NEON code that mixes signed and unsigned vector types
-  NIX_CFLAGS_COMPILE = lib.optional stdenv.hostPlatform.isAarch "-flax-vector-conversions";
+  env.NIX_CFLAGS_COMPILE = lib.optionalString stdenv.hostPlatform.isAarch "-flax-vector-conversions";
 
   postInstall = ''
     for bin in $out/bin/*; do