treewide: improve prepending and appending derivation arguments in bash code

pkgs/applications/audio/fmit/default.nix

@@ -28,13 +28,15 @@ mkDerivation rec {
     substituteInPlace fmit.pro --replace '$$FMITVERSIONGITPRO' '${version}'
   '';
 
-  preConfigure = ''
-    qmakeFlags="$qmakeFlags \
-      CONFIG+=${lib.optionalString alsaSupport "acs_alsa"} \
-      CONFIG+=${lib.optionalString jackSupport "acs_jack"} \
-      CONFIG+=${lib.optionalString portaudioSupport "acs_portaudio"} \
-      PREFIXSHORTCUT=$out"
-  '';
+  qmakeFlags = [
+    "PREFIXSHORTCUT=${placeholder "out"}"
+  ] ++ lib.optionals alsaSupport [
+    "CONFIG+=acs_alsa"
+  ] ++ lib.optionals jackSupport [
+    "CONFIG+=acs_jack"
+  ] ++ lib.optionals portaudioSupport [
+    "CONFIG+=acs_portaudio"
+  ];
 
   meta = with lib; {
     description = "Free Musical Instrument Tuner";

pkgs/applications/audio/sonic-pi/default.nix

@@ -105,6 +105,7 @@ stdenv.mkDerivation rec {
     "-DUSE_SYSTEM_LIBS=ON"
     "-DBUILD_IMGUI_INTERFACE=${if withImGui then "ON" else "OFF"}"
     "-DWITH_QT_GUI_WEBENGINE=${if withTauWidget then "ON" else "OFF"}"
+    "-DAPP_INSTALL_ROOT=${placeholder "out"}/app"
   ];
 
   doCheck = true;
@@ -136,9 +137,6 @@ stdenv.mkDerivation rec {
 
     # Prebuild Ruby vendored dependencies and Qt docs
     ./linux-prebuild.sh -o
-
-    # Append CMake flag depending on the value of $out
-    cmakeFlags+=" -DAPP_INSTALL_ROOT=$out/app"
   '';
 
   postBuild = ''

pkgs/applications/kde/marble.nix

@@ -18,7 +18,7 @@ mkDerivation {
     protobuf_21 qtscript qtsvg qtquickcontrols qtwebengine shared-mime-info krunner kparts
     knewstuff gpsd
   ];
-  preConfigure = ''
-    cmakeFlags+=" -DINCLUDE_INSTALL_DIR=''${!outputDev}/include"
-  '';
+  cmakeFlags = [
+    "-DINCLUDE_INSTALL_DIR=${placeholder "dev"}/include"
+  ];
 }

pkgs/applications/misc/maliit-framework/default.nix

@@ -66,9 +66,9 @@ mkDerivation rec {
     wayland-scanner
   ];
 
-  preConfigure = ''
-    cmakeFlags+="-DQT5_PLUGINS_INSTALL_DIR=$out/$qtPluginPrefix"
-  '';
+  cmakeFlags = [
+    "-DQT5_PLUGINS_INSTALL_DIR=${placeholder "out"}/$qtPluginPrefix"
+  ];
 
   meta = with lib; {
     description = "Core libraries of Maliit and server";

pkgs/applications/science/misc/boinc/default.nix

@@ -63,12 +63,14 @@ stdenv.mkDerivation rec {
 
   preConfigure = ''
     ./_autosetup
-    configureFlags="$configureFlags --sysconfdir=$out/etc"
   '';
 
   enableParallelBuilding = true;
 
-  configureFlags = [ "--disable-server" ] ++ lib.optionals headless [ "--disable-manager" ];
+  configureFlags = [
+    "--disable-server"
+    "--sysconfdir=${placeholder "out"}/etc"
+  ] ++ lib.optionals headless [ "--disable-manager" ];
 
   postInstall = ''
     install --mode=444 -D 'client/scripts/boinc-client.service' "$out/etc/systemd/system/boinc.service"

pkgs/applications/version-management/monotone-viz/default.nix

@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
   ];
 
   preConfigure = ''
-    configureFlags="$configureFlags --with-lablgtk-dir=$(echo ${lablgtk}/lib/ocaml/*/site-lib/lablgtk2)"
+    appendToVar configureFlags "--with-lablgtk-dir=$(echo ${lablgtk}/lib/ocaml/*/site-lib/lablgtk2)"
   '';
 
   postInstall = ''

pkgs/applications/version-management/vcprompt/default.nix

@@ -14,9 +14,12 @@ stdenv.mkDerivation rec {
 
   preConfigure = ''
     autoconf
-    makeFlags="$makeFlags PREFIX=$out"
   '';
 
+  makeFlags = [
+    "PREFIX=${placeholder "out"}"
+  ];
+
   meta = with lib; {
     description = ''
       A little C program that prints a short string with barebones information

pkgs/applications/video/kodi/unwrapped.nix

@@ -214,10 +214,10 @@ in stdenv.mkDerivation (finalAttrs: {
       # Need these tools on the build system when cross compiling,
       # hacky, but have found no other way.
       CXX=$CXX_FOR_BUILD LD=ld make -C tools/depends/native/JsonSchemaBuilder
-      cmakeFlags+=" -DWITH_JSONSCHEMABUILDER=$PWD/tools/depends/native/JsonSchemaBuilder/bin"
+      appendToVar cmakeFlags "-DWITH_JSONSCHEMABUILDER=$PWD/tools/depends/native/JsonSchemaBuilder/bin"
 
       CXX=$CXX_FOR_BUILD LD=ld make EXTRA_CONFIGURE= -C tools/depends/native/TexturePacker
-      cmakeFlags+=" -DWITH_TEXTUREPACKER=$PWD/tools/depends/native/TexturePacker/bin"
+      appendToVar cmakeFlags "-DWITH_TEXTUREPACKER=$PWD/tools/depends/native/TexturePacker/bin"
     '';
 
     postPatch = ''

pkgs/build-support/release/binary-tarball.nix

@@ -48,7 +48,7 @@ stdenv.mkDerivation (
 
       # Prefix hackery because of a bug in stdenv (it tries to `mkdir
       # $prefix', which doesn't work due to the DESTDIR).
-      configureFlags="--prefix=$prefix $configureFlags"
+      prependToVar configureFlags "--prefix=$prefix"
       dontAddPrefix=1
       prefix=$TMPDIR/inst$prefix
     '';

pkgs/by-name/cl/cl-launch/package.nix

@@ -9,10 +9,13 @@ stdenv.mkDerivation rec {
   };
 
   preConfigure = ''
-    export makeFlags="$makeFlags PREFIX='$out'"
     mkdir -p "$out/bin"
   '';
 
+  makeFlags = [
+    "PREFIX=${placeholder "out"}"
+  ];
+
   preBuild = ''
     sed -e 's/\t\t@/\t\t/g' -i Makefile
   '';

pkgs/by-name/fl/fluxus/package.nix

@@ -58,10 +58,8 @@ stdenv.mkDerivation {
     "RacketInclude=${racket}/include/racket"
     "RacketLib=${racket}/lib/racket"
     "DESTDIR=build"
+    "Prefix=${placeholder "out"}"
   ];
-  configurePhase = ''
-    sconsFlags+=" Prefix=$out"
-  '';
   installPhase = ''
     mkdir -p $out
     cp -r build$out/* $out/

pkgs/by-name/gl/globulation2/package.nix

@@ -51,11 +51,11 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ scons ];
   buildInputs = [ libGLU libGL SDL SDL_ttf SDL_image zlib SDL_net speex libvorbis libogg boost fribidi bsdiff ];
 
-  postConfigure = ''
-    sconsFlags+=" BINDIR=$out/bin"
-    sconsFlags+=" INSTALLDIR=$out/share/globulation2"
-    sconsFlags+=" DATADIR=$out/share/globulation2/glob2"
-  '';
+  sconsFlags = [
+    "BINDIR=${placeholder "out"}/bin"
+    "INSTALLDIR=${placeholder "out"}/share/globulation2"
+    "DATADIR=${placeholder "out"}/share/globulation2/glob2"
+  ];
 
   NIX_LDFLAGS = "-lboost_system";
 

pkgs/by-name/gp/gpsd/package.nix

@@ -89,9 +89,6 @@ stdenv.mkDerivation rec {
     sed -e "s|systemd_dir = .*|systemd_dir = '$out/lib/systemd/system'|" -i SConscript
     export TAR=noop
     substituteInPlace SConscript --replace "env['CCVERSION']" "env['CC']"
-
-    sconsFlags+=" udevdir=$out/lib/udev"
-    sconsFlags+=" python_libdir=$out/${python3Packages.python.sitePackages}"
   '';
 
   # - leapfetch=no disables going online at build time to fetch leap-seconds
@@ -102,6 +99,8 @@ stdenv.mkDerivation rec {
     "gpsd_group=${gpsdGroup}"
     "systemd=yes"
     "xgps=${if guiSupport then "True" else "False"}"
+    "udevdir=${placeholder "out"}/lib/udev"
+    "python_libdir=${placeholder "out"}/${python3Packages.python.sitePackages}"
   ];
 
   preCheck = ''

pkgs/by-name/gt/gt5/package.nix

@@ -13,9 +13,9 @@ stdenv.mkDerivation rec {
     sed 's/-o root -g root//' -i Makefile
   '';
 
-  preConfigure = ''
-    makeFlags="$makeFlags PREFIX=$out"
-  '';
+  makeFlags = [
+    "PREFIX=${placeholder "out"}"
+  ];
 
   meta = {
     description = "Diff-capable 'du' browser";

pkgs/by-name/lx/lxdvdrip/package.nix

@@ -12,9 +12,12 @@ stdenv.mkDerivation rec {
   postPatch = ''
     sed -i -e s,/usr/local,$out, -e s,/etc,$out/etc,g Makefile
     sed -i -e s,/usr/local,$out, mbuffer/Makefile
-    makeFlags="$makeFlags PREFIX=$out"
   '';
 
+  makeFlags = [
+    "PREFIX=${placeholder "out"}"
+  ];
+
   preInstall = ''
     mkdir -p $out/man/man1 $out/bin $out/share $out/etc
   '';

pkgs/by-name/ne/netcdfcxx4/package.nix

@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   ];
 
   preConfigure = ''
-    cmakeFlags+="-Dabs_top_srcdir=$(readlink -f ./)"
+    appendToVar cmakeFlags "-Dabs_top_srcdir=$(readlink -f ./)"
   '';
 
   nativeBuildInputs = [ cmake ninja ];

pkgs/by-name/nf/nfs-utils/package.nix

@@ -42,7 +42,8 @@ stdenv.mkDerivation rec {
     '';
 
   configureFlags =
-    [ "--enable-gss"
+    [ "--with-start-statd=${placeholder "out"}/bin/start-statd"
+      "--enable-gss"
       "--enable-svcgss"
       "--with-statedir=/var/lib/nfs"
       "--with-krb5=${lib.getLib libkrb5}"
@@ -67,8 +68,6 @@ stdenv.mkDerivation rec {
       sed -i "s,/usr/sbin,$out/bin,g" utils/statd/statd.c
       sed -i "s,^PATH=.*,PATH=$out/bin:${statdPath}," utils/statd/start-statd
 
-      configureFlags="--with-start-statd=$out/bin/start-statd $configureFlags"
-
       substituteInPlace systemd/nfs-utils.service \
         --replace "/bin/true" "${coreutils}/bin/true"
 

pkgs/by-name/np/np2kai/package.nix

@@ -124,7 +124,8 @@ stdenv.mkDerivation rec {
 
   configurePhase = ''
     export GIT_VERSION=${builtins.substring 0 7 src.rev}
-    buildFlags="$buildFlags ''${enableParallelBuilding:+-j$NIX_BUILD_CORES}"
+  '' + optionalString enableParallelBuilding ''
+    appendToVar buildFlags "-j$NIX_BUILD_CORES"
   '' + optionalString enableX11 ''
     cd x11
     substituteInPlace Makefile.am \

pkgs/by-name/pa/pacparser/package.nix

@@ -11,10 +11,12 @@ stdenv.mkDerivation rec {
     sha256 = "sha256-X842+xPjM404aQJTc2JwqU4vq8kgyKhpnqVu70pNLks=";
   };
 
-  makeFlags = [ "NO_INTERNET=1" ];
+  makeFlags = [
+    "NO_INTERNET=1"
+    "PREFIX=${placeholder "out"}"
+  ];
 
   preConfigure = ''
-    export makeFlags="$makeFlags PREFIX=$out"
     patchShebangs tests/runtests.sh
     cd src
   '';

pkgs/by-name/pa/patchPpdFilesHook/patch-ppd-hook.sh

@@ -174,7 +174,7 @@ patchPpdFileCommands () {
             # The end result might contain too many
             # propagated dependencies for multi-output packages,
             # but never a broken package.
-            propagatedBuildInputs+=("$path")
+            appendToVar propagatedBuildInputs "$path"
         done  < sorted-dependencies
     fi
 

pkgs/by-name/pu/pulseaudio-module-xrdp/package.nix

@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
     mv pulseaudio-* pulseaudio-src
     chmod +w -Rv pulseaudio-src
     cp ${pulseaudio.dev}/include/pulse/config.h pulseaudio-src
-    configureFlags="$configureFlags PULSE_DIR=$(realpath ./pulseaudio-src)"
+    appendToVar configureFlags "PULSE_DIR=$(realpath ./pulseaudio-src)"
   '';
 
   installPhase = ''

pkgs/by-name/ro/rocksndiamonds/package.nix

@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
 
   preBuild = ''
     dataDir="$out/share/rocksndiamonds"
-    makeFlags+="BASE_PATH=$dataDir"
+    appendToVar makeFlags "BASE_PATH=$dataDir"
   '';
 
   installPhase = ''

pkgs/by-name/rt/rt/package.nix

@@ -123,12 +123,12 @@ stdenv.mkDerivation rec {
     echo rt-${version} > .tag
   '';
   preConfigure = ''
-    configureFlags="$configureFlags --with-web-user=$UID"
-    configureFlags="$configureFlags --with-web-group=$(id -g)"
-    configureFlags="$configureFlags --with-rt-group=$(id -g)"
-    configureFlags="$configureFlags --with-bin-owner=$UID"
-    configureFlags="$configureFlags --with-libs-owner=$UID"
-    configureFlags="$configureFlags --with-libs-group=$(id -g)"
+    appendToVar configureFlags "--with-web-user=$UID"
+    appendToVar configureFlags "--with-web-group=$(id -g)"
+    appendToVar configureFlags "--with-rt-group=$(id -g)"
+    appendToVar configureFlags "--with-bin-owner=$UID"
+    appendToVar configureFlags "--with-libs-owner=$UID"
+    appendToVar configureFlags "--with-libs-group=$(id -g)"
   '';
   configureFlags = [
     "--enable-graphviz"

pkgs/by-name/se/serf/package.nix

@@ -37,13 +37,13 @@ stdenv.mkDerivation rec {
   prefixKey = "PREFIX=";
 
   preConfigure = ''
-    sconsFlags+=" APR=$(echo ${apr.dev}/bin/*-config)"
-    sconsFlags+=" APU=$(echo ${aprutil.dev}/bin/*-config)"
-    sconsFlags+=" CC=$CC"
-    sconsFlags+=" OPENSSL=${openssl}"
-    sconsFlags+=" ZLIB=${zlib}"
+    appendToVar sconsFlags "APR=$(echo ${apr.dev}/bin/*-config)"
+    appendToVar sconsFlags "APU=$(echo ${aprutil.dev}/bin/*-config)"
+    appendToVar sconsFlags "CC=$CC"
+    appendToVar sconsFlags "OPENSSL=${openssl}"
+    appendToVar sconsFlags "ZLIB=${zlib}"
   '' + lib.optionalString (!stdenv.hostPlatform.isCygwin) ''
-    sconsFlags+=" GSSAPI=${libkrb5.dev}"
+    appendToVar sconsFlags "GSSAPI=${libkrb5.dev}"
   '';
 
   enableParallelBuilding = true;

pkgs/by-name/si/silc_client/package.nix

@@ -19,11 +19,11 @@ stdenv.mkDerivation rec {
 
   hardeningDisable = [ "format" ];
 
-  configureFlags = [ "--with-ncurses=${ncurses.dev}" ];
-
-  preConfigure = lib.optionalString enablePlugin ''
-    configureFlags="$configureFlags --with-silc-plugin=$out/lib/irssi"
-  '';
+  configureFlags = [
+    "--with-ncurses=${ncurses.dev}"
+  ] ++ lib.optionals enablePlugin [
+    "--with-silc-plugin=${placeholder "out"}/lib/irssi"
+  ];
 
   nativeBuildInputs = [ pkg-config ];
   buildInputs = [ perl glib ncurses ];

pkgs/by-name/sp/spaceFM/package.nix

@@ -30,12 +30,9 @@ stdenv.mkDerivation rec {
 
   configureFlags = [
     "--with-bash-path=${pkgs.bash}/bin/bash"
+    "--sysconfdir=${placeholder "out"}/etc"
   ];
 
-  preConfigure = ''
-    configureFlags="$configureFlags --sysconfdir=$out/etc"
-  '';
-
   postInstall = ''
     rm -f $out/etc/spacefm/spacefm.conf
     ln -s /etc/spacefm/spacefm.conf $out/etc/spacefm/spacefm.conf

pkgs/by-name/tr/trigger/package.nix

@@ -32,9 +32,12 @@ stdenv.mkDerivation rec {
 
     sed s,lSDL2main,lSDL2, -i GNUmakefile
     export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -I${SDL2.dev}/include/SDL2"
-    export makeFlags="$makeFlags prefix=$out"
   '';
 
+  makeFlags = [
+    "prefix=${placeholder "out"}"
+  ];
+
   enableParallelBuilding = true;
 
   postInstall = ''

pkgs/by-name/ts/tsocks/package.nix

@@ -14,9 +14,12 @@ stdenv.mkDerivation rec {
   preConfigure = ''
     sed -i -e "s,\\\/usr,"$(echo $out|sed -e "s,\\/,\\\\\\\/,g")",g" tsocks
     substituteInPlace tsocks --replace /usr $out
-    export configureFlags="$configureFlags --libdir=$out/lib"
   '';
 
+  configureFlags = [
+    "--libdir=${placeholder "out"}/lib"
+  ];
+
   preBuild = ''
     # We don't need the saveme binary, it is in fact never stored and we're
     # never injecting stuff into ld.so.preload anyway