treewide: move NIX_CFLAGS_COMPILE to the env attrset

with structuredAttrs lists will be bash arrays which cannot be exported
which will be a issue with some patches and some wrappers like cc-wrapper

this makes it clearer that NIX_CFLAGS_COMPILE must be a string as lists
in env cause a eval failure

33 files changed, 33 insertions, 33 deletions

diff --git a/pkgs/applications/audio/aacgain/default.nix b/pkgs/applications/audio/aacgain/default.nix
index 62a72fea62a0a..4d45de86f3a1f 100644
--- a/pkgs/applications/audio/aacgain/default.nix
+++ b/pkgs/applications/audio/aacgain/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
     libtool
   ];
 
-  NIX_CFLAGS_COMPILE = "-Wno-error=narrowing";
+  env.NIX_CFLAGS_COMPILE = "-Wno-error=narrowing";
 
   meta = with lib; {
     description = "ReplayGain for AAC files";
diff --git a/pkgs/applications/audio/adlplug/default.nix b/pkgs/applications/audio/adlplug/default.nix
index a0f5b48a63231..a5d82b6e00ddd 100644
--- a/pkgs/applications/audio/adlplug/default.nix
+++ b/pkgs/applications/audio/adlplug/default.nix
@@ -62,7 +62,7 @@ stdenv.mkDerivation rec {
     "-DADLplug_Jack=${if withJack then "ON" else "OFF"}"
   ];
 
-  NIX_CFLAGS_COMPILE = lib.optionalString stdenv.hostPlatform.isDarwin (toString [
+  env.NIX_CFLAGS_COMPILE = lib.optionalString stdenv.hostPlatform.isDarwin (toString [
     # "fp.h" file not found
     "-isystem ${CoreServices}/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/Headers"
   ]);
diff --git a/pkgs/applications/audio/aether-lv2/default.nix b/pkgs/applications/audio/aether-lv2/default.nix
index 2d8a6e5003a1e..6710aaa87f4e3 100644
--- a/pkgs/applications/audio/aether-lv2/default.nix
+++ b/pkgs/applications/audio/aether-lv2/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
     lv2 libX11 libGL libGLU mesa
   ];
 
-  NIX_CFLAGS_COMPILE = toString [
+  env.NIX_CFLAGS_COMPILE = toString [
     # Needed with GCC 12
     "-Wno-error=array-bounds"
     "-Wno-error=stringop-overflow"
diff --git a/pkgs/applications/audio/audio-recorder/default.nix b/pkgs/applications/audio/audio-recorder/default.nix
index bb89cb45672bd..aaf6777533ffd 100644
--- a/pkgs/applications/audio/audio-recorder/default.nix
+++ b/pkgs/applications/audio/audio-recorder/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   };
 
   # https://bugs.launchpad.net/audio-recorder/+bug/1784622
-  NIX_CFLAGS_COMPILE = "-I${glib.dev}/include/gio-unix-2.0";
+  env.NIX_CFLAGS_COMPILE = "-I${glib.dev}/include/gio-unix-2.0";
 
   nativeBuildInputs = [ pkg-config intltool wrapGAppsHook ];
 
diff --git a/pkgs/applications/audio/bespokesynth/default.nix b/pkgs/applications/audio/bespokesynth/default.nix
index 7fc921e59fbfd..919768d58ed73 100644
--- a/pkgs/applications/audio/bespokesynth/default.nix
+++ b/pkgs/applications/audio/bespokesynth/default.nix
@@ -108,7 +108,7 @@ stdenv.mkDerivation rec {
     CoreAudioKit
   ];
 
-  NIX_CFLAGS_COMPILE = lib.optionalString stdenv.hostPlatform.isDarwin (toString [
+  env.NIX_CFLAGS_COMPILE = lib.optionalString stdenv.hostPlatform.isDarwin (toString [
     # Fails to find fp.h on its own
     "-isystem ${CoreServices}/Library/Frameworks/CoreServices.framework/Versions/Current/Frameworks/CarbonCore.framework/Versions/Current/Headers/"
   ]);
diff --git a/pkgs/applications/audio/bristol/default.nix b/pkgs/applications/audio/bristol/default.nix
index 6099895a0f23f..39227fd065227 100644
--- a/pkgs/applications/audio/bristol/default.nix
+++ b/pkgs/applications/audio/bristol/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation  rec {
   # gcc-10. Otherwise build fails as:
   #  ld: brightonCLI.o:/build/bristol-0.60.11/brighton/brightonCLI.c:139: multiple definition of
   #    `event'; brightonMixerMenu.o:/build/bristol-0.60.11/brighton/brightonMixerMenu.c:1182: first defined here
-  NIX_CFLAGS_COMPILE = "-fcommon";
+  env.NIX_CFLAGS_COMPILE = "-fcommon";
 
   preInstall = ''
     sed -e "s@\`which bristol\`@$out/bin/bristol@g" -i bin/startBristol
diff --git a/pkgs/applications/audio/fire/default.nix b/pkgs/applications/audio/fire/default.nix
index 54d5bba446618..93536944d96dd 100644
--- a/pkgs/applications/audio/fire/default.nix
+++ b/pkgs/applications/audio/fire/default.nix
@@ -103,7 +103,7 @@ stdenv.mkDerivation rec {
   '';
 
   # Fails to find fp.h on its own
-  NIX_CFLAGS_COMPILE = lib.optionalString stdenv.hostPlatform.isDarwin "-isystem ${CoreServices}/Library/Frameworks/CoreServices.framework/Versions/Current/Frameworks/CarbonCore.framework/Versions/Current/Headers/";
+  env.NIX_CFLAGS_COMPILE = lib.optionalString stdenv.hostPlatform.isDarwin "-isystem ${CoreServices}/Library/Frameworks/CoreServices.framework/Versions/Current/Frameworks/CarbonCore.framework/Versions/Current/Headers/";
 
   doCheck = stdenv.buildPlatform.canExecute stdenv.hostPlatform;
 
diff --git a/pkgs/applications/audio/freewheeling/default.nix b/pkgs/applications/audio/freewheeling/default.nix
index 08afe21763e98..531352d0ed949 100644
--- a/pkgs/applications/audio/freewheeling/default.nix
+++ b/pkgs/applications/audio/freewheeling/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
       configureFlags = oldAttrs.configureFlags ++ [ "--enable-openssl-compatibility" ];
     }))
   ];
-  NIX_CFLAGS_COMPILE = toString
+  env.NIX_CFLAGS_COMPILE = toString
     (makeSDLFlags [ SDL SDL_ttf SDL_gfx ] ++ [ "-I${libxml2.dev}/include/libxml2" ]);
 
   hardeningDisable = [ "format" ];
diff --git a/pkgs/applications/audio/furnace/default.nix b/pkgs/applications/audio/furnace/default.nix
index f0bb039a79c4a..097b73a2549ac 100644
--- a/pkgs/applications/audio/furnace/default.nix
+++ b/pkgs/applications/audio/furnace/default.nix
@@ -63,7 +63,7 @@ stdenv.mkDerivation rec {
     "-DWARNINGS_ARE_ERRORS=ON"
   ];
 
-  NIX_CFLAGS_COMPILE = lib.optionals (stdenv.cc.isGNU && lib.versionAtLeast stdenv.cc.version "12") [
+  env.NIX_CFLAGS_COMPILE = lib.optionals (stdenv.cc.isGNU && lib.versionAtLeast stdenv.cc.version "12") [
     # Needed with GCC 12 but breaks on darwin (with clang) or aarch64 (old gcc)
     "-Wno-error=mismatched-new-delete"
     "-Wno-error=use-after-free"
diff --git a/pkgs/applications/audio/giada/default.nix b/pkgs/applications/audio/giada/default.nix
index 7ab91f28533fa..c5dcec05a9d1d 100644
--- a/pkgs/applications/audio/giada/default.nix
+++ b/pkgs/applications/audio/giada/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
     fetchSubmodules = true;
   };
 
-  NIX_CFLAGS_COMPILE = toString [
+  env.NIX_CFLAGS_COMPILE = toString [
     "-w"
     "-Wno-error"
   ];
diff --git a/pkgs/applications/audio/gnaural/default.nix b/pkgs/applications/audio/gnaural/default.nix
index 42b28eacc4f46..e7753ef28e6b3 100644
--- a/pkgs/applications/audio/gnaural/default.nix
+++ b/pkgs/applications/audio/gnaural/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   # Workaround build failure on -fno-common toolchains:
   #   ld: src/net/../gnauralnet.h:233: multiple definition of `GN_ScheduleFingerprint';
   #     src/net/../../src/gnauralnet.h:233: first defined here
-  NIX_CFLAGS_COMPILE = "-fcommon";
+  env.NIX_CFLAGS_COMPILE = "-fcommon";
 
   postInstall = ''
     mkdir -p $out/share/applications
diff --git a/pkgs/applications/audio/grandorgue/default.nix b/pkgs/applications/audio/grandorgue/default.nix
index 0bbe0b1f0da54..a90e02d9ec0b5 100644
--- a/pkgs/applications/audio/grandorgue/default.nix
+++ b/pkgs/applications/audio/grandorgue/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
     "-DINSTALL_DEPEND=OFF"
   ] ++ lib.optional (!includeDemo) "-DINSTALL_DEMO=OFF";
 
-  NIX_CFLAGS_COMPILE = lib.optional stdenv.isDarwin "-DTARGET_OS_IPHONE=0";
+  env.NIX_CFLAGS_COMPILE = lib.optional stdenv.isDarwin "-DTARGET_OS_IPHONE=0";
 
   postInstall = lib.optionalString stdenv.isDarwin ''
     mkdir -p $out/{Applications,bin,lib}
diff --git a/pkgs/applications/audio/gtkpod/default.nix b/pkgs/applications/audio/gtkpod/default.nix
index 220d2d38e145d..a16ad3c932017 100644
--- a/pkgs/applications/audio/gtkpod/default.nix
+++ b/pkgs/applications/audio/gtkpod/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   # gcc-10. Otherwise build fails as:
   #   ld: .libs/autodetection.o:/build/gtkpod-2.1.5/libgtkpod/gtkpod_app_iface.h:248: multiple definition of
   #       `gtkpod_app'; .libs/gtkpod_app_iface.o:/build/gtkpod-2.1.5/libgtkpod/gtkpod_app_iface.h:248: first defined here
-  NIX_CFLAGS_COMPILE = "-fcommon";
+  env.NIX_CFLAGS_COMPILE = "-fcommon";
 
   enableParallelBuilding = true;
 
diff --git a/pkgs/applications/audio/guitarix/default.nix b/pkgs/applications/audio/guitarix/default.nix
index 6742e14174f23..3033888996a19 100644
--- a/pkgs/applications/audio/guitarix/default.nix
+++ b/pkgs/applications/audio/guitarix/default.nix
@@ -97,7 +97,7 @@ stdenv.mkDerivation rec {
     "--install-roboto-font"
   ] ++ optional optimizationSupport "--optimization";
 
-  NIX_CFLAGS_COMPILE = toString [ "-fpermissive" ];
+  env.NIX_CFLAGS_COMPILE = toString [ "-fpermissive" ];
 
   meta = with lib; {
     description = "A virtual guitar amplifier for Linux running with JACK";
diff --git a/pkgs/applications/audio/jamin/default.nix b/pkgs/applications/audio/jamin/default.nix
index f4a5e58c5e11b..e130d9a642d42 100644
--- a/pkgs/applications/audio/jamin/default.nix
+++ b/pkgs/applications/audio/jamin/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   # gcc-10. Otherwise build fails as:
   #     ld: jamin-preferences.o:/build/jamin-0.95.0/src/hdeq.h:64: multiple definition of
   #       `l_notebook1'; jamin-callbacks.o:/build/jamin-0.95.0/src/hdeq.h:64: first defined here
-  NIX_CFLAGS_COMPILE = "-fcommon";
+  env.NIX_CFLAGS_COMPILE = "-fcommon";
 
   postInstall = ''
     wrapProgram $out/bin/jamin --set LADSPA_PATH ${ladspaPlugins}/lib/ladspa
diff --git a/pkgs/applications/audio/klystrack/default.nix b/pkgs/applications/audio/klystrack/default.nix
index 362c76a0d4dec..9ea5f40be14bb 100644
--- a/pkgs/applications/audio/klystrack/default.nix
+++ b/pkgs/applications/audio/klystrack/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
   #   ld: libengine_gui.a(gui_menu.o):(.bss+0x0): multiple definition of
   #     `menu_t'; objs.release/action.o:(.bss+0x20): first defined here
   # TODO: remove it for 1.7.7+ release as it was fixed upstream.
-  NIX_CFLAGS_COMPILE = "-fcommon";
+  env.NIX_CFLAGS_COMPILE = "-fcommon";
 
   buildFlags = [ "PREFIX=${placeholder "out"}" "CFG=release" ];
 
diff --git a/pkgs/applications/audio/littlegptracker/default.nix b/pkgs/applications/audio/littlegptracker/default.nix
index 5d8d57dff6efe..b3bcd593848c8 100644
--- a/pkgs/applications/audio/littlegptracker/default.nix
+++ b/pkgs/applications/audio/littlegptracker/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
     ++ lib.optionals stdenv.isLinux  [ "PLATFORM=DEB" ]
     ++ lib.optionals stdenv.isDarwin [ "PLATFORM=OSX" ];
 
-  NIX_CFLAGS_COMPILE = toString [ "-fpermissive" ] ++
+  env.NIX_CFLAGS_COMPILE = toString [ "-fpermissive" ] ++
     lib.optional stdenv.hostPlatform.isAarch64 "-Wno-error=narrowing";
 
   NIX_LDFLAGS = lib.optional stdenv.isDarwin "-framework Foundation";
diff --git a/pkgs/applications/audio/lsp-plugins/default.nix b/pkgs/applications/audio/lsp-plugins/default.nix
index 4e4612ef922cb..c3d8671b26dd1 100644
--- a/pkgs/applications/audio/lsp-plugins/default.nix
+++ b/pkgs/applications/audio/lsp-plugins/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
     "PREFIX=${placeholder "out"}"
   ];
 
-  NIX_CFLAGS_COMPILE = "-DLSP_NO_EXPERIMENTAL";
+  env.NIX_CFLAGS_COMPILE = "-DLSP_NO_EXPERIMENTAL";
 
   configurePhase = ''
     make config PREFIX=${placeholder "out"}
diff --git a/pkgs/applications/audio/mi2ly/default.nix b/pkgs/applications/audio/mi2ly/default.nix
index dd9919ebc517e..2ba12575543c1 100644
--- a/pkgs/applications/audio/mi2ly/default.nix
+++ b/pkgs/applications/audio/mi2ly/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   hardeningDisable = [ "format" ];
 
-  NIX_CFLAGS_COMPILE = toString [ "-fgnu89-inline" ];
+  env.NIX_CFLAGS_COMPILE = toString [ "-fgnu89-inline" ];
 
   buildPhase = "./cc";
   installPhase = ''
diff --git a/pkgs/applications/audio/mimic/default.nix b/pkgs/applications/audio/mimic/default.nix
index dfdeecd8541b0..2819e288ec115 100644
--- a/pkgs/applications/audio/mimic/default.nix
+++ b/pkgs/applications/audio/mimic/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
     pcre2
   ] ++ lib.optional pulseaudioSupport libpulseaudio;
 
-  NIX_CFLAGS_COMPILE = toString [
+  env.NIX_CFLAGS_COMPILE = toString [
     # Needed with GCC 12
     "-Wno-error=free-nonheap-object"
   ];
diff --git a/pkgs/applications/audio/mp3blaster/default.nix b/pkgs/applications/audio/mp3blaster/default.nix
index 0d65fe813ec19..8d4a63f3b9ef1 100644
--- a/pkgs/applications/audio/mp3blaster/default.nix
+++ b/pkgs/applications/audio/mp3blaster/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
     libvorbis
   ] ++ lib.optional stdenv.isDarwin SDL;
 
-  NIX_CFLAGS_COMPILE = toString ([
+  env.NIX_CFLAGS_COMPILE = toString ([
     "-Wno-narrowing"
   ] ++ lib.optionals stdenv.cc.isClang [
     "-Wno-reserved-user-defined-literal"
diff --git a/pkgs/applications/audio/mpc123/default.nix b/pkgs/applications/audio/mpc123/default.nix
index 9a693c0eaa39f..7746d1c63fa83 100644
--- a/pkgs/applications/audio/mpc123/default.nix
+++ b/pkgs/applications/audio/mpc123/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   # Workaround build failure on -fno-common toolchains like upstream
   # gcc-10. Otherwise build fails as:
   #   ld: /build/cc566Cj9.o:(.bss+0x0): multiple definition of `mpc123_file_reader'; ao.o:(.bss+0x40): first defined here
-  NIX_CFLAGS_COMPILE = "-fcommon";
+  env.NIX_CFLAGS_COMPILE = "-fcommon";
 
   buildInputs = [ gettext libmpcdec libao ];
 
diff --git a/pkgs/applications/audio/mpg321/default.nix b/pkgs/applications/audio/mpg321/default.nix
index 4a73ddf03c877..e00b6722f38d6 100644
--- a/pkgs/applications/audio/mpg321/default.nix
+++ b/pkgs/applications/audio/mpg321/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
   # gcc-10. Otherwise build fails as:
   #   ld: volume.o:/build/mpg321-0.3.2-orig/mpg321.h:119: multiple definition of
   #     `loop_remaining'; mpg321.o:/build/mpg321-0.3.2-orig/mpg321.h:119: first defined here
-  NIX_CFLAGS_COMPILE = "-fcommon";
+  env.NIX_CFLAGS_COMPILE = "-fcommon";
 
   configureFlags =
     [ ("--enable-alsa=" + (if stdenv.isLinux then "yes" else "no")) ]
diff --git a/pkgs/applications/audio/muse/default.nix b/pkgs/applications/audio/muse/default.nix
index c1ccd532813ea..5663070d7dfeb 100644
--- a/pkgs/applications/audio/muse/default.nix
+++ b/pkgs/applications/audio/muse/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
     libsamplerate libsndfile lilv lrdf lv2 qtsvg rtaudio rubberband sord
   ];
 
-  NIX_CFLAGS_COMPILE = toString [ "-I${lib.getDev serd}/include/serd-0" ];
+  env.NIX_CFLAGS_COMPILE = toString [ "-I${lib.getDev serd}/include/serd-0" ];
 
   meta = with lib; {
     homepage = "https://muse-sequencer.github.io/";
diff --git a/pkgs/applications/audio/oxefmsynth/default.nix b/pkgs/applications/audio/oxefmsynth/default.nix
index c867db1d8cf60..81cdc29be7a49 100644
--- a/pkgs/applications/audio/oxefmsynth/default.nix
+++ b/pkgs/applications/audio/oxefmsynth/default.nix
@@ -22,7 +22,7 @@ in stdenv.mkDerivation rec {
     sha256 = "1rk71ls33a38wx8i22plsi7d89cqqxrfxknq5i4f9igsw1ipm4gn";
   };
 
-  NIX_CFLAGS_COMPILE = toString [ "-Wno-narrowing" ];
+  env.NIX_CFLAGS_COMPILE = toString [ "-Wno-narrowing" ];
 
   buildFlags = [ "VSTSDK_PATH=${vst-sdk}/VST2_SDK" ];
 
diff --git a/pkgs/applications/audio/picoloop/default.nix b/pkgs/applications/audio/picoloop/default.nix
index 171a090119253..8f11ec809c3a4 100644
--- a/pkgs/applications/audio/picoloop/default.nix
+++ b/pkgs/applications/audio/picoloop/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   makeFlags = [ "-f Makefile.PatternPlayer_debian_RtAudio_sdl20" ];
 
-  NIX_CFLAGS_COMPILE = toString [ "-I${SDL2.dev}/include/SDL2" ];
+  env.NIX_CFLAGS_COMPILE = toString [ "-I${SDL2.dev}/include/SDL2" ];
 
   hardeningDisable = [ "format" ];
 
diff --git a/pkgs/applications/audio/pragha/default.nix b/pkgs/applications/audio/pragha/default.nix
index da5a64f708eb0..8e039f05927f5 100644
--- a/pkgs/applications/audio/pragha/default.nix
+++ b/pkgs/applications/audio/pragha/default.nix
@@ -83,7 +83,7 @@ mkDerivation rec {
 
   CFLAGS = [ "-DHAVE_PARANOIA_NEW_INCLUDES" ];
 
-  NIX_CFLAGS_COMPILE = "-I${lib.getDev gst_all_1.gst-plugins-base}/include/gstreamer-1.0";
+  env.NIX_CFLAGS_COMPILE = "-I${lib.getDev gst_all_1.gst-plugins-base}/include/gstreamer-1.0";
 
   postInstall = ''
     qtWrapperArgs+=(--prefix GST_PLUGIN_SYSTEM_PATH_1_0 : "$GST_PLUGIN_SYSTEM_PATH_1_0")
diff --git a/pkgs/applications/audio/sayonara/default.nix b/pkgs/applications/audio/sayonara/default.nix
index d578a4f307840..e7efb7896be7c 100644
--- a/pkgs/applications/audio/sayonara/default.nix
+++ b/pkgs/applications/audio/sayonara/default.nix
@@ -56,7 +56,7 @@ mkDerivation rec {
   ];
 
   # gstreamer cannot otherwise be found
-  NIX_CFLAGS_COMPILE = "-I${gst_all_1.gst-plugins-base.dev}/include/gstreamer-1.0";
+  env.NIX_CFLAGS_COMPILE = "-I${gst_all_1.gst-plugins-base.dev}/include/gstreamer-1.0";
 
   postInstall = ''
     qtWrapperArgs+=(--prefix GST_PLUGIN_SYSTEM_PATH_1_0 : "$GST_PLUGIN_SYSTEM_PATH_1_0")
diff --git a/pkgs/applications/audio/soundscape-renderer/default.nix b/pkgs/applications/audio/soundscape-renderer/default.nix
index 3ec2cda4280be..7a6399ff3c666 100644
--- a/pkgs/applications/audio/soundscape-renderer/default.nix
+++ b/pkgs/applications/audio/soundscape-renderer/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation {
   # Without it doesn't find all of the boost libraries.
   BOOST_LIB_DIR = "${boost}/lib";
   # uses the deprecated get_generic_category() in boost_system
-  NIX_CFLAGS_COMPILE = "-DBOOST_SYSTEM_ENABLE_DEPRECATED=1";
+  env.NIX_CFLAGS_COMPILE = "-DBOOST_SYSTEM_ENABLE_DEPRECATED=1";
 
   LC_ALL = "en_US.UTF-8";
 
diff --git a/pkgs/applications/audio/tenacity/default.nix b/pkgs/applications/audio/tenacity/default.nix
index 525a743965c27..c27e3864d27f7 100644
--- a/pkgs/applications/audio/tenacity/default.nix
+++ b/pkgs/applications/audio/tenacity/default.nix
@@ -82,7 +82,7 @@ stdenv.mkDerivation rec {
       --prefix XDG_DATA_DIRS : "$out/share:$GSETTINGS_SCHEMAS_PATH"
   '';
 
-  NIX_CFLAGS_COMPILE = "-D GIT_DESCRIBE=\"\"";
+  env.NIX_CFLAGS_COMPILE = "-D GIT_DESCRIBE=\"\"";
 
   # tenacity only looks for ffmpeg at runtime, so we need to link it in manually
   NIX_LDFLAGS = toString [
diff --git a/pkgs/applications/audio/transcode/default.nix b/pkgs/applications/audio/transcode/default.nix
index da149db075379..55883a4f70e95 100644
--- a/pkgs/applications/audio/transcode/default.nix
+++ b/pkgs/applications/audio/transcode/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   # gcc-10. Otherwise build fails as:
   #   ld: tcextract-extract_pcm.o:/build/transcode-1.1.7/import/extract_pcm.c:36: multiple definition of
   #     `audio'; tcextract-extract_ac3.o:/build/transcode-1.1.7/import/extract_ac3.c:337: first defined here
-  NIX_CFLAGS_COMPILE = "-fcommon";
+  env.NIX_CFLAGS_COMPILE = "-fcommon";
 
   meta = with lib; {
     description = "Suite of command line utilities for transcoding video and audio codecs, and for converting between different container formats";
diff --git a/pkgs/applications/audio/ympd/default.nix b/pkgs/applications/audio/ympd/default.nix
index 218204d690a16..83ce36a595816 100644
--- a/pkgs/applications/audio/ympd/default.nix
+++ b/pkgs/applications/audio/ympd/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   #   ld: CMakeFiles/ympd.dir/src/mpd_client.c.o:(.bss+0x0): multiple definition of `mpd';
   #     CMakeFiles/ympd.dir/src/ympd.c.o:(.bss+0x20): first defined here
   # Should be fixed by pending https://github.com/notandy/ympd/pull/191 (does not apply as is).
-  NIX_CFLAGS_COMPILE = "-fcommon";
+  env.NIX_CFLAGS_COMPILE = "-fcommon";
 
   nativeBuildInputs = [ cmake pkg-config ];
   buildInputs = [ libmpdclient openssl ];
diff --git a/pkgs/applications/audio/zynaddsubfx/mruby-zest/default.nix b/pkgs/applications/audio/zynaddsubfx/mruby-zest/default.nix
index 797b4624b966e..f490e452b51c0 100644
--- a/pkgs/applications/audio/zynaddsubfx/mruby-zest/default.nix
+++ b/pkgs/applications/audio/zynaddsubfx/mruby-zest/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
 
   # Force optimization to fix:
   # warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O)
-  NIX_CFLAGS_COMPILE = "-O3";
+  env.NIX_CFLAGS_COMPILE = "-O3";
 
   # Remove pre-built y.tab.c to generate with nixpkgs bison
   preBuild = ''