Fix nix build (forgot it was building from git source); patch to load module & put fns in module

default.nix

@@ -1,40 +1,10 @@
 {pkgs ? import <nixpkgs> {}}:
 pkgs.stdenv.mkDerivation {
   name = "riverguile";
-  src = pkgs.fetchgit {
-    url = "https://git.sr.ht/~leon_plickat/riverguile/";
-    rev = "744ce4b1eb5950d0dc795d64bfac6b7738eec6f1";
-    hash = "sha256-80XVaq+17Vu+DAs7pjt3cu5wiK37680A7S6qIulPRLc=";
-  };
-  patches = [
-    (pkgs.writeText "nix-build.patch" ''
-diff --git a/Makefile b/Makefile
-index 915f7ac..ff2b3c2 100644
---- a/Makefile
-+++ b/Makefile
-@@ -1,6 +1,6 @@
- SCANNER := wayland-scanner
- 
--PREFIX=/usr/local
-+PREFIX=''${out}
- BINDIR=$(PREFIX)/bin
- DATADIR=$(PREFIX)/share
- MODULEDIR=$(DATADIR)/guile/3.0
-diff --git a/src/call-idle-handler.c b/src/call-idle-handler.c
-index 727656e..b4d4474 100644
---- a/src/call-idle-handler.c
-+++ b/src/call-idle-handler.c
-@@ -8,7 +8,7 @@ static void *call_idle_handler_inner (void *data)
- 	struct Call_idle_handler_parameters *params =
- 		(struct Call_idle_handler_parameters *)data;
- 
--	SCM event;
-+	SCM event = { 0 };
- 	switch (params->event)
- 	{
- 		case IDLE:   event = scm_from_utf8_symbol("idle");   break;
-'')
-  ];
-  buildInputs = with pkgs; [wayland-scanner wayland guile];
-  nativeBuildInputs = [pkgs.pkg-config];
+  src = ./.;
+  preFixup = ''
+    wrapProgram $out/bin/riverguile --set GUILE_LOAD_PATH "$out/share/guile/3.0/" 
+  '';
+  buildInputs = with pkgs; [wayland guile];
+  nativeBuildInputs = with pkgs; [pkg-config makeBinaryWrapper wayland wayland-scanner];
 }

module/riverguile.scm

@@ -25,7 +25,20 @@
    #:export (R
              R:input
              R:map
-             R:keyboard-group))
+             R:keyboard-group
+             riverctl
+             install-handler
+             seat
+             outputs
+             output-name
+             output-focused-tags
+             output-view-tags
+             output-urgent-tags
+             output-layout-name
+             seat-focused-output
+             seat-focused-view-title
+             seat-mode
+             ))
 
 (define (stringify x)
   (cond ((string? x) x)

src/load-script.c

@@ -8,6 +8,7 @@
 #include "libguile/boolean.h"
 #include "libguile/foreign-object.h"
 #include "libguile/list.h"
+#include "libguile/modules.h"
 #include "libguile/numbers.h"
 #include "libguile/pairs.h"
 #include "libguile/scm.h"
@@ -306,10 +307,12 @@ static SCM seat(void) {
 	wl_list_for_each(seat, &context.seats, link)
 		break;
 	struct Output *output = NULL;
-	if ( seat->status.focused_output != NULL ) 
+	if ( seat->status.focused_output != NULL )
 		wl_list_for_each(output, &context.outputs, link)
 			if ( output->wl_output == seat->status.focused_output )
 				break;
+
+
 	return scm_make_foreign_object_3(
 	    seat_t,
 			output != NULL ? output_for(output) : SCM_BOOL_F,
@@ -345,10 +348,8 @@ static void *load_script_inner (void *data)
 	return scm_primitive_load_path(scm_from_utf8_string(path));
 }
 
-void *load_script (void *data)
-{
+SCM init_module(void *data) {
 	/* Note: All guile objects are garbage collected. */
-
 	scm_c_define_gsubr_fix("install-handler", 2, 0, 0, install_handler);
 	scm_c_define_gsubr_fix("riverctl", 1, 0, 1, riverctl);
 
@@ -374,7 +375,13 @@ void *load_script (void *data)
 	#define X(t, c, scm, i) scm_c_define_gsubr_fix(scm, 1, 0, 0, c);
 	getters(X)
 	#undef X
+	return SCM_UNSPECIFIED;
+}
 
+void *load_script (void *data)
+{
+	SCM module = scm_c_resolve_module("riverguile");
+	scm_c_call_with_current_module(module, init_module, NULL);
 
 	/* Continuation barrier causes stack unwind on exceptions to stop here.
 	 * Otherwise the entire stack created by scm_with_guile() would be