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-rw-r--r--pkgs/tools/graphics/cfdg/default.nix9
1 files changed, 7 insertions, 2 deletions
diff --git a/pkgs/tools/graphics/cfdg/default.nix b/pkgs/tools/graphics/cfdg/default.nix
index 44a1e0d1d2a..fd4a8b366fe 100644
--- a/pkgs/tools/graphics/cfdg/default.nix
+++ b/pkgs/tools/graphics/cfdg/default.nix
@@ -10,7 +10,8 @@ stdenv.mkDerivation rec {
     sha256 = "13m8npccacmgxbs4il45zw53dskjh53ngv2nxahwqw8shjrws4mh";
   };
 
-  buildInputs = [ libpng bison flex ffmpeg icu ];
+  nativeBuildInputs = [ bison flex ];
+  buildInputs = [ libpng ffmpeg icu ];
 
   postPatch = ''
     sed -e "/YY_NO_UNISTD/a#include <stdio.h>" -i src-common/cfdg.l
@@ -18,11 +19,15 @@ stdenv.mkDerivation rec {
   '';
 
   installPhase = ''
+    runHook preInstall
+
     mkdir -p $out/bin
     cp cfdg $out/bin/
 
     mkdir -p $out/share/doc/${pname}-${version}
     cp *.txt $out/share/doc/${pname}-${version}
+
+    runHook postInstall
   '';
 
   meta = with lib; {
@@ -30,6 +35,6 @@ stdenv.mkDerivation rec {
     maintainers = with maintainers; [ raskin ];
     platforms = platforms.linux;
     homepage = "https://contextfreeart.org/";
-    license = licenses.gpl2;
+    license = licenses.gpl2Only;
   };
 }