libgcrypt: Revert to old style

pkgs/development/libraries/libgcrypt/1.5.nix

@@ -1,20 +1,7 @@
-{ stdenv, fetchurl
-, libgpgerror
+{ lib, stdenv, fetchurl, libgpgerror, enableCapabilities ? false, libcap }:
 
-# Optional Dependencies
-, libcap ? null
-}:
+assert enableCapabilities -> stdenv.isLinux;
 
-let
-  mkFlag = trueStr: falseStr: cond: name: val:
-    if cond == null then null else
-      "--${if cond != false then trueStr else falseStr}${name}${if val != null && cond != false then "=${val}" else ""}";
-  mkWith = mkFlag "with-" "without-";
-
-  shouldUsePkg = pkg: if pkg != null && stdenv.lib.any (x: x == stdenv.system) pkg.meta.platforms then pkg else null;
-
-  optLibcap = shouldUsePkg libcap;
-in
 stdenv.mkDerivation rec {
   name = "libgcrypt-1.5.4";
 
@@ -23,18 +10,16 @@ stdenv.mkDerivation rec {
     sha256 = "0czvqxkzd5y872ipy6s010ifwdwv29sqbnqc4pf56sd486gqvy6m";
   };
 
-  buildInputs = [ libgpgerror optLibcap ];
-
-  configureFlags = [
-    (mkWith   (optLibcap != null) "capabilities"  null)
-  ];
+  buildInputs =
+    [ libgpgerror ]
+    ++ lib.optional enableCapabilities libcap;
 
   # Make sure libraries are correct for .pc and .la files
   # Also make sure includes are fixed for callers who don't use libgpgcrypt-config
   postInstall = ''
     sed -i 's,#include <gpg-error.h>,#include "${libgpgerror}/include/gpg-error.h",g' $out/include/gcrypt.h
-  '' + stdenv.lib.optionalString (!stdenv.isDarwin && optLibcap != null) ''
-    sed -i 's,\(-lcap\),-L${optLibcap}/lib \1,' $out/lib/libgcrypt.la
+  '' + stdenv.lib.optionalString enableCapabilities ''
+    sed -i 's,\(-lcap\),-L${libcap}/lib \1,' $out/lib/libgcrypt.la
   '';
 
   doCheck = true;

pkgs/development/libraries/libgcrypt/default.nix

@@ -1,24 +1,7 @@
-{ stdenv, fetchurl
-, libgpgerror
+{ lib, stdenv, fetchurl, libgpgerror, enableCapabilities ? false, libcap }:
 
-# Optional Dependencies
-, libcap ? null, pth ? null
-}:
+assert enableCapabilities -> stdenv.isLinux;
 
-let
-  mkFlag = trueStr: falseStr: cond: name: val:
-    if cond == null then null else
-      "--${if cond != false then trueStr else falseStr}${name}${if val != null && cond != false then "=${val}" else ""}";
-  mkEnable = mkFlag "enable-" "disable-";
-  mkWith = mkFlag "with-" "without-";
-  mkOther = mkFlag "" "" true;
-
-  shouldUsePkg = pkg: if pkg != null && stdenv.lib.any (x: x == stdenv.system) pkg.meta.platforms then pkg else null;
-
-  optLibcap = shouldUsePkg libcap;
-  #optPth = shouldUsePkg pth;
-  optPth = null; # Broken as of 1.6.3
-in
 stdenv.mkDerivation rec {
   name = "libgcrypt-1.6.3";
 
@@ -27,29 +10,26 @@ stdenv.mkDerivation rec {
     sha256 = "0pq2nwfqgggrsh8rk84659d80vfnlkbphwqjwahccd5fjdxr3d21";
   };
 
-  buildInputs = [ libgpgerror optLibcap optPth ];
-
-  configureFlags = [
-    (mkWith   (optLibcap != null) "capabilities"  null)
-    (mkEnable (optPth != null)    "random-daemon" null)
-  ];
+  buildInputs =
+    [ libgpgerror ]
+    ++ lib.optional enableCapabilities libcap;
 
   # Make sure libraries are correct for .pc and .la files
   # Also make sure includes are fixed for callers who don't use libgpgcrypt-config
   postInstall = ''
     sed -i 's,#include <gpg-error.h>,#include "${libgpgerror}/include/gpg-error.h",g' $out/include/gcrypt.h
-  '' + stdenv.lib.optionalString (!stdenv.isDarwin && optLibcap != null) ''
-    sed -i 's,\(-lcap\),-L${optLibcap}/lib \1,' $out/lib/libgcrypt.la
+  '' + stdenv.lib.optionalString enableCapabilities ''
+    sed -i 's,\(-lcap\),-L${libcap}/lib \1,' $out/lib/libgcrypt.la
   '';
 
   doCheck = true;
 
-  meta = with stdenv.lib; {
+  meta = {
     homepage = https://www.gnu.org/software/libgcrypt/;
     description = "General-pupose cryptographic library";
-    license = licenses.lgpl2Plus;
-    platforms = platforms.all;
-    maintainers = with maintainers; [ wkennington ];
+    license = lib.licenses.lgpl2Plus;
+    platforms = lib.platforms.all;
+    maintainers = [ lib.maintainers.wkennington ];
     repositories.git = git://git.gnupg.org/libgcrypt.git;
   };
 }

pkgs/top-level/all-packages.nix

@@ -6787,13 +6787,9 @@ let
 
   libftdi1 = callPackage ../development/libraries/libftdi/1.x.nix { };
 
-  libgcrypt = callPackage ../development/libraries/libgcrypt {
-    # Breaks packages that expect to have elevated privileges
-    # Ex. Lightdm, cryptsetup
-    libcap = null;
-  };
+  libgcrypt = callPackage ../development/libraries/libgcrypt { };
 
-  libgcrypt_1_5 = lowPrio (callPackage ../development/libraries/libgcrypt/1.5.nix { });
+  libgcrypt_1_5 = callPackage ../development/libraries/libgcrypt/1.5.nix { };
 
   libgdiplus = callPackage ../development/libraries/libgdiplus { };