treewide: Start to break up static overlay

We can use use `stdenv.hostPlatform.isStatic` instead, and move the
logic per package. The least opionated benefit of this is that it makes
it much easier to replace packages with modified ones, as there is no
longer any issue of overlay order.

CC @FRidh @matthewbauer

1 files changed, 12 insertions, 8 deletions

diff --git a/pkgs/os-specific/linux/libcap/default.nix b/pkgs/os-specific/linux/libcap/default.nix
index 713c4b5d13d..ab78a3a33d8 100644
--- a/pkgs/os-specific/linux/libcap/default.nix
+++ b/pkgs/os-specific/linux/libcap/default.nix
@@ -1,5 +1,9 @@
-{ stdenv, lib, buildPackages, fetchurl, attr, perl, pam
-, static ? stdenv.targetPlatform.isStatic }:
+{ stdenv, lib, buildPackages, fetchurl, attr, perl
+, usePam ? !isStatic, pam ? null
+, isStatic ? stdenv.hostPlatform.isStatic
+}:
+
+assert usePam -> pam != null;
 
 stdenv.mkDerivation rec {
   pname = "libcap";
@@ -10,21 +14,21 @@ stdenv.mkDerivation rec {
     sha256 = "1qf80lifygbnxwvqjf8jz5j24n6fqqx4ixnkbf76xs2vrmcq664j";
   };
 
-  patches = lib.optional static ./no-shared-lib.patch;
+  patches = lib.optional isStatic ./no-shared-lib.patch;
 
   outputs = [ "out" "dev" "lib" "man" "doc" ]
-    ++ lib.optional (pam != null) "pam";
+    ++ lib.optional usePam "pam";
 
   depsBuildBuild = [ buildPackages.stdenv.cc ];
   nativeBuildInputs = [ perl ];
 
-  buildInputs = [ pam ];
+  buildInputs = lib.optional usePam pam;
 
   propagatedBuildInputs = [ attr ];
 
   makeFlags = [
     "lib=lib"
-    "PAM_CAP=${if pam == null then "no" else "yes"}"
+    "PAM_CAP=${if usePam then "yes" else "no"}"
     "BUILD_CC=$(CC_FOR_BUILD)"
     "CC:=$(CC)"
   ];
@@ -48,10 +52,10 @@ stdenv.mkDerivation rec {
   installFlags = [ "RAISE_SETFCAP=no" ];
 
   postInstall = ''
-    ${lib.optionalString (!static) ''rm "$lib"/lib/*.a''}
+    ${lib.optionalString (!isStatic) ''rm "$lib"/lib/*.a''}
     mkdir -p "$doc/share/doc/${pname}-${version}"
     cp License "$doc/share/doc/${pname}-${version}/"
-  '' + stdenv.lib.optionalString (pam != null) ''
+  '' + stdenv.lib.optionalString usePam ''
     mkdir -p "$pam/lib/security"
     mv "$lib"/lib/security "$pam/lib"
   '';