writers: drop writeC

This function is fundamentally broken.
Not even the ncurses example will compile.
The interface needs to be rethought for it to work (i.e. don't
unconditionally include all pc files, set include path and ld path and
rpath).
Since it is unlikely that in the current this has any user, just drop it for now.

pkgs/build-support/writers/default.nix

@@ -99,51 +99,6 @@ rec {
   writeBashBin = name:
     writeBash "/bin/${name}";
 
-  # writeC writes an executable c package called `name` to `destination` using `libraries`.
-  #
-  #  Examples:
-  #    writeC "hello-world-ncurses" { libraries = [ pkgs.ncurses ]; } ''
-  #      #include <ncurses.h>
-  #      int main() {
-  #        initscr();
-  #        printw("Hello World !!!");
-  #        refresh(); endwin();
-  #        return 0;
-  #      }
-  #    ''
-  writeC = name: {
-    libraries ? [],
-    strip ? true
-  }:
-    makeBinWriter {
-      compileScript = ''
-        PATH=${makeBinPath [
-          pkgs.binutils-unwrapped
-          pkgs.coreutils
-          pkgs.findutils
-          pkgs.gcc
-          pkgs.pkg-config
-        ]}
-        export PKG_CONFIG_PATH=${concatMapStringsSep ":" (pkg: "${pkg}/lib/pkgconfig") libraries}
-        gcc \
-            ${optionalString (libraries != [])
-              "$(pkg-config --cflags --libs ${
-                concatMapStringsSep " " (pkg: "$(find ${escapeShellArg pkg}/lib/pkgconfig -name \\*.pc)") libraries
-              })"
-            } \
-            -O \
-            -o "$out" \
-            -Wall \
-            -x c \
-            "$contentPath"
-      '';
-      inherit strip;
-    } name;
-
-  # writeCBin takes the same arguments as writeC but outputs a directory (like writeScriptBin)
-  writeCBin = name:
-    writeC "/bin/${name}";
-
   # Like writeScript but the first line is a shebang to dash
   #
   # Example:

pkgs/build-support/writers/test.nix

@@ -17,14 +17,6 @@ let
      if [[ "test" == "test" ]]; then echo "success"; fi
     '';
 
-    c = writeCBin "test-writers-c" { libraries = [ ]; } ''
-      #include <stdio.h>
-      int main() {
-        printf("success\n");
-        return 0;
-      }
-    '';
-
     dash = writeDashBin "test-writers-dash-bin" ''
      test '~' = '~' && echo 'success'
     '';
@@ -88,24 +80,6 @@ let
      if [[ "test" == "test" ]]; then echo "success"; fi
     '';
 
-    c = writeC "test-writers-c" { libraries = [ glib.dev ]; } ''
-      #include <gio/gio.h>
-      #include <stdio.h>
-      int main() {
-        GApplication *application = g_application_new ("hello.world", G_APPLICATION_FLAGS_NONE);
-        g_application_register (application, NULL, NULL);
-        GNotification *notification = g_notification_new ("Hello world!");
-        g_notification_set_body (notification, "This is an example notification.");
-        GIcon *icon = g_themed_icon_new ("dialog-information");
-        g_notification_set_icon (notification, icon);
-        g_object_unref (icon);
-        g_object_unref (notification);
-        g_object_unref (application);
-        printf("success\n");
-        return 0;
-      }
-    '';
-
     dash = writeDash "test-writers-dash" ''
      test '~' = '~' && echo 'success'
     '';