flashprog: refactor make jlink and gpio support configurable

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

@@ -2,15 +2,17 @@
 , installShellFiles
 , lib
 , libftdi1
-, libgpiod_1
+, libgpiod
 , libjaylink
 , libusb1
 , pciutils
 , pkg-config
 , stdenv
+, withJlink ? true
+, withGpio ? stdenv.isLinux
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation {
   pname = "flashprog";
   version = "1.0.1";
 
@@ -24,24 +26,36 @@ stdenv.mkDerivation rec {
     installShellFiles
     pkg-config
   ];
-
   buildInputs = [
     libftdi1
-    libjaylink
     libusb1
   ] ++ lib.optionals (!stdenv.isDarwin) [
-    libgpiod_1
     pciutils
+  ] ++ lib.optionals (withJlink) [
+    libjaylink
+  ] ++ lib.optionals (withGpio) [
+    libgpiod
   ];
 
-  makeFlags = [ "PREFIX=$(out)" "libinstall" ]
-    ++ lib.optionals stdenv.isDarwin [ "CONFIG_ENABLE_LIBPCI_PROGRAMMERS=no" ]
-    ++ lib.optionals (stdenv.isDarwin && stdenv.isx86_64) [ "CONFIG_INTERNAL_X86=no" "CONFIG_INTERNAL_DMI=no" "CONFIG_RAYER_SPI=0" ];
+  makeFlags =
+    let
+      yesNo = flag: if flag then "yes" else "no";
+    in
+    [
+      "libinstall"
+      "PREFIX=$(out)"
+      "CONFIG_JLINK_SPI=${yesNo withJlink}"
+      "CONFIG_LINUX_GPIO_SPI=${yesNo withGpio}"
+      "CONFIG_ENABLE_LIBPCI_PROGRAMMERS=${yesNo (!stdenv.isDarwin)}"
+      "CONFIG_INTERNAL_X86=${yesNo (!(stdenv.isDarwin) && stdenv.isx86_64)}"
+      "CONFIG_INTERNAL_DMI=${yesNo (!(stdenv.isDarwin) && stdenv.isx86_64)}"
+      "CONFIG_RAYER_SPI=${yesNo (!(stdenv.isDarwin) && stdenv.isx86_64)}"
+    ];
 
   meta = with lib; {
     homepage = "https://flashprog.org";
     description = "Utility for reading, writing, erasing and verifying flash ROM chips";
-    license = with licenses; [ gpl2 gpl2Plus ];
+    license = with licenses; [ gpl2Plus ];
     maintainers = with maintainers; [ felixsinger ];
     platforms = platforms.all;
     mainProgram = "flashprog";