gistfile1.diff

diff -u -r c_only/Makefile plugins_darwin/Makefile
--- c_only/Makefile	2012-08-19 22:53:58.000000000 -0400
+++ plugins_darwin/Makefile	2012-08-24 08:00:34.000000000 -0400
@@ -10,7 +10,7 @@
 PLUGIN_DIR = plugins
 
 
-all: htmlize_main $(PLUGIN_DIR)/tt.so $(PLUGIN_DIR)/narcissist.so
+all: htmlize_main $(PLUGIN_DIR)/tt.dylib $(PLUGIN_DIR)/narcissist.dylib
 
 
 #
@@ -41,7 +41,7 @@
 # to DSOs.
 htmlize_main: htmlize_main.o htmlize.o db.o clib.a plugin_manager.o \
 			  plugin_discovery.o
-	$(CC) -o $@ $^ -ldl -Wl,--export-dynamic
+	$(CC) -o $@ $^ -ldl
 
 #
 # Plugins
@@ -49,15 +49,15 @@
 $(PLUGIN_DIR)/tt.o: $(PLUGIN_DIR)/tt.c $(HTMLIZE_H)
 	$(CC) -c $< -o $@ $(CCOPT_SO) -I.
 
-$(PLUGIN_DIR)/tt.so: $(PLUGIN_DIR)/tt.o
-	$(CC) -o $@ $^ -shared
+$(PLUGIN_DIR)/tt.dylib: $(PLUGIN_DIR)/tt.o
+	$(CC) -o $@ $^ -dynamiclib -flat_namespace -undefined suppress
 
 $(PLUGIN_DIR)/narcissist.o: $(PLUGIN_DIR)/narcissist.c $(HTMLIZE_H)
 	$(CC) -c $< -o $@ $(CCOPT_SO) -I.
 
-$(PLUGIN_DIR)/narcissist.so: $(PLUGIN_DIR)/narcissist.o
-	$(CC) -o $@ $^ -shared
+$(PLUGIN_DIR)/narcissist.dylib: $(PLUGIN_DIR)/narcissist.o
+	$(CC) -o $@ $^ -dynamiclib -flat_namespace -undefined suppress
 
 clean:
-	rm -rf core *.o *.a htmlize_main plugins/*.o plugins/*.so 
+	rm -rf core *.o *.a htmlize_main plugins/*.o plugins/*.dylib 
 
diff -u -r c_only/plugin_discovery.c plugins_darwin/plugin_discovery.c
--- c_only/plugin_discovery.c	2012-08-20 08:03:52.000000000 -0400
+++ plugins_darwin/plugin_discovery.c	2012-08-24 08:03:52.000000000 -0400
@@ -36,7 +36,7 @@
 
 
 // Given a filename, return the name of the plugin (the filename
-// without .so extension) if it appears like a valid plugin path, or
+// without .dylib extension) if it appears like a valid plugin path, or
 // NULL.
 //
 static dstring get_plugin_name(char* filename) {
@@ -46,8 +46,8 @@
     char* name_start = last_slash ? last_slash + 1 : filename;
     char* last_dot = strrchr(filename, '.');
 
-    // We only care about file names that have a .so extension
-    if (!last_dot || strcmp(last_dot, ".so"))
+    // We only care about file names that have a .dylib extension
+    if (!last_dot || strcmp(last_dot, ".dylib"))
         return NULL;
 
     return dstring_new_len(name_start, last_dot - name_start);

Patch to get Eli Bendersky's C plugin example compiled on Darwin (OS X)