treewide: NIX_*_FLAGS -> string

pkgs/development/libraries/mps/default.nix

@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ sqlite ];
 
   # needed for 1.116.0 to build with gcc7
-  NIX_CFLAGS_COMPILE = [
+  NIX_CFLAGS_COMPILE = toString [
     "-Wno-implicit-fallthrough"
     "-Wno-error=clobbered"
     "-Wno-error=cast-function-type"

pkgs/development/libraries/ntrack/default.nix

@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ pkgconfig python ];
 
   # error: ISO C does not support '__FUNCTION__' predefined identifier [-Werror=pedantic]
-  NIX_CFLAGS_COMPILE = [ "-Wno-error" ];
+  NIX_CFLAGS_COMPILE = "-Wno-error";
 
   configureFlags = [ "--without-gobject" "CFLAGS=--std=gnu99" ];
 

pkgs/development/libraries/opencv/4.x.nix

@@ -221,7 +221,7 @@ stdenv.mkDerivation {
 
   nativeBuildInputs = [ cmake pkgconfig unzip ];
 
-  NIX_CFLAGS_COMPILE = lib.optional enableEXR "-I${ilmbase.dev}/include/OpenEXR";
+  NIX_CFLAGS_COMPILE = lib.optionalString enableEXR "-I${ilmbase.dev}/include/OpenEXR";
 
   # Configure can't find the library without this.
   OpenBLAS_HOME = lib.optionalString enableOpenblas openblas;

pkgs/development/libraries/prometheus-cpp/default.nix

@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
     "-DCIVETWEB_CXX_LIBRARY=${civetweb}/lib/libcivetweb${stdenv.targetPlatform.extensions.sharedLibrary}"
   ];
 
-  NIX_LDFLAGS = [ "-ldl" ];
+  NIX_LDFLAGS = "-ldl";
 
   meta = {
     description = "Prometheus Client Library for Modern C++";

pkgs/development/libraries/qoauth/default.nix

@@ -18,8 +18,8 @@ stdenv.mkDerivation {
   buildInputs = [ qt5.qtbase qca2-qt5 ];
   nativeBuildInputs = [ qt5.qmake ];
 
-  NIX_CFLAGS_COMPILE = [ "-I${qca2-qt5}/include/Qca-qt5/QtCrypto" ];
-  NIX_LDFLAGS = [ "-lqca-qt5" ];
+  NIX_CFLAGS_COMPILE = "-I${qca2-qt5}/include/Qca-qt5/QtCrypto";
+  NIX_LDFLAGS = "-lqca-qt5";
 
   meta = with stdenv.lib; {
     description = "Qt library for OAuth authentication";

pkgs/development/libraries/science/benchmark/papi/default.nix

@@ -11,7 +11,7 @@ stdenv.mkDerivation {
     sha256 = "13mngf9kl0y2wfxqvkad0smdaag7k8fvw82b4312gx62nwhc1i6r";
   };
 
-  NIX_CFLAGS_COMPILE = [ "-Wno-error=format-truncation" ];
+  NIX_CFLAGS_COMPILE = "-Wno-error=format-truncation";
 
   preConfigure = ''
     cd src

pkgs/development/libraries/spatialite-tools/default.nix

@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   enableParallelBuilding = true;
 
-  NIX_LDFLAGS = [ "-lsqlite3" ];
+  NIX_LDFLAGS = "-lsqlite3";
 
   meta = {
     description = "A complete sqlite3-compatible CLI front-end for libspatialite";

pkgs/development/libraries/spdk/default.nix

@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   configureFlags = [ "--with-dpdk=${dpdk}" ];
 
-  NIX_CFLAGS_COMPILE = [ "-mssse3" ]; # Necessary to compile.
+  NIX_CFLAGS_COMPILE = "-mssse3"; # Necessary to compile.
 
   enableParallelBuilding = true;
 

pkgs/development/libraries/unixODBCDrivers/default.nix

@@ -100,16 +100,16 @@
   sqlite = stdenv.mkDerivation rec {
     pname = "sqlite-connector-odbc";
     version = "0.9993";
- 
+
     src = fetchurl {
       url = "http://www.ch-werner.de/sqliteodbc/sqliteodbc-${version}.tar.gz";
       sha256 = "0dgsj28sc7f7aprmdd0n5a1rmcx6pv7170c8dfjl0x1qsjxim6hs";
     };
- 
+
     buildInputs = [ unixODBC sqlite zlib libxml2 ];
- 
+
     configureFlags = [ "--with-odbc=${unixODBC}" ];
- 
+
     installTargets = [ "install-3" ];
 
     # move libraries to $out/lib where they're expected to be
@@ -117,7 +117,7 @@
       mkdir -p "$out/lib"
       mv "$out"/*.* "$out/lib"
     '';
- 
+
     passthru = {
       fancyName = "SQLite";
       driver = "lib/libsqlite3odbc.so";

pkgs/development/libraries/uri/default.nix

@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
     sha256 = "148361pixrm94q6v04k13s1msa04bx9yc3djb0lxpa7dlw19vhcd";
   };
 
-  NIX_CFLAGS_COMPILE = [ "-Wno-error=parentheses" ];
+  NIX_CFLAGS_COMPILE = "-Wno-error=parentheses";
 
   nativeBuildInputs = [ cmake doxygen ];
 

pkgs/development/libraries/v8/default.nix

@@ -99,7 +99,7 @@ stdenv.mkDerivation rec {
 
   # with gcc8, -Wclass-memaccess became part of -Wall and causes logging limit
   # to be exceeded
-  NIX_CFLAGS_COMPILE = stdenv.lib.optional stdenv.cc.isGNU "-Wno-class-memaccess";
+  NIX_CFLAGS_COMPILE = stdenv.lib.optionalString stdenv.cc.isGNU "-Wno-class-memaccess";
 
   nativeBuildInputs = [ gn ninja pkgconfig python ]
     ++ stdenv.lib.optionals stdenv.isDarwin [ xcbuild darwin.DarwinTools ];

pkgs/development/libraries/zeroc-ice/default.nix

@@ -32,7 +32,7 @@ in stdenv.mkDerivation rec {
   buildInputs = [ zeroc_mcpp bzip2 expat openssl lmdb ]
     ++ lib.optionals stdenv.isDarwin [ darwin.cctools libiconv Security ];
 
-  NIX_CFLAGS_COMPILE = [ "-Wno-error=class-memaccess" "-Wno-error=deprecated-copy" ];
+  NIX_CFLAGS_COMPILE = "-Wno-error=class-memaccess -Wno-error=deprecated-copy";
 
   prePatch = lib.optional stdenv.isDarwin ''
     substituteInPlace Make.rules.Darwin \

pkgs/development/libraries/zookeeper_mt/default.nix

@@ -7,7 +7,7 @@ stdenv.mkDerivation rec {
 
   setSourceRoot = "export sourceRoot=${zookeeper.name}/src/c";
 
-  NIX_CFLAGS_COMPILE = stdenv.lib.optionals (!stdenv.isDarwin) [ "-Wno-error=format-overflow" "-Wno-error=stringop-truncation" ];
+  NIX_CFLAGS_COMPILE = stdenv.lib.optionalString (!stdenv.isDarwin) "-Wno-error=format-overflow -Wno-error=stringop-truncation";
 
   buildInputs = [ zookeeper bash ];