Get rid of workaround casts for ANSI C warnings.

Also, drop -pedantic to avoid related warnings.

Makefile

-CFLAGS=-Wall --pedantic
+CFLAGS=-Wall
 
 all: libuserhosts.so
 

userhosts.c

@@ -47,8 +47,8 @@ static inline void *dlsym_or_abort(const char *name) {
 }
 
 static void __attribute__ ((constructor)) init(void) {
-  *(void **)(&original_open) = dlsym_or_abort("open");
-  *(void **)(&original_fopen) = dlsym_or_abort("fopen");
+  original_open = dlsym_or_abort("open");
+  original_fopen = dlsym_or_abort("fopen");
   replacement_hosts = getenv("HOSTS");
   if (replacement_hosts == NULL)
     /* XXX: warn ? fallback on $HOME/???/hosts ? */