squashfuse_dlopen.patch

--- a/Makefile.am
+++ b/Makefile.am
@@ -1,6 +1,7 @@
 COMPRESSION_LIBS = $(ZLIB_LIBS) $(XZ_LIBS) $(LZO_LIBS) $(LZ4_LIBS)
 
 ACLOCAL_AMFLAGS = -I m4 --install
+AM_CFLAGS = -fno-strict-aliasing -DENABLE_DLOPEN
 
 # Suppress AppleDouble
 if MAKE_EXPORT
@@ -19,13 +20,13 @@
 # Main library: libsquashfuse
 libsquashfuse_la_SOURCES = swap.c cache.c table.c dir.c file.c fs.c \
 	decompress.c xattr.c hash.c stack.c traverse.c util.c \
-	nonstd-pread.c nonstd-stat.c \
+	nonstd-pread.c nonstd-stat.c squashfuse_dlopen.c \
 	squashfs_fs.h common.h nonstd-internal.h nonstd.h swap.h cache.h table.h \
 	dir.h file.h decompress.h xattr.h squashfuse.h hash.h stack.h traverse.h \
-	util.h fs.h
+	util.h fs.h squashfuse_dlopen.h
 libsquashfuse_la_CPPFLAGS = $(ZLIB_CPPFLAGS) $(XZ_CPPFLAGS) $(LZO_CPPFLAGS) \
 	$(LZ4_CPPFLAGS)
-libsquashfuse_la_LIBADD =
+libsquashfuse_la_LIBADD = -ldl
 
 # Helper for FUSE clients: libfuseprivate
 libfuseprivate_la_SOURCES = fuseprivate.c nonstd-makedev.c nonstd-enoattr.c \
--- a/fuseprivate.c
+++ b/fuseprivate.c
@@ -94,15 +94,17 @@
 }
 
 void sqfs_usage(char *progname, bool fuse_usage) {
+	LOAD_SYMBOL(int,fuse_opt_add_arg,(struct fuse_args *args, const char *arg));
+	LOAD_SYMBOL(int,fuse_parse_cmdline,(struct fuse_args *args, char **mountpoint, int *multithreaded, int *foreground));
 	fprintf(stderr, "%s (c) 2012 Dave Vasilevsky\n\n", PACKAGE_STRING);
 	fprintf(stderr, "Usage: %s [options] ARCHIVE MOUNTPOINT\n",
 		progname ? progname : PACKAGE_NAME);
 	if (fuse_usage) {
 		struct fuse_args args = FUSE_ARGS_INIT(0, NULL);
-		fuse_opt_add_arg(&args, ""); /* progname */
-		fuse_opt_add_arg(&args, "-ho");
+		DL(fuse_opt_add_arg)(&args, ""); /* progname */
+		DL(fuse_opt_add_arg)(&args, "-ho");
 		fprintf(stderr, "\n");
-		fuse_parse_cmdline(&args, NULL, NULL, NULL);
+		DL(fuse_parse_cmdline)(&args, NULL, NULL, NULL);
 	}
 	exit(-2);
 }
--- a/fuseprivate.h
+++ b/fuseprivate.h
@@ -27,7 +27,10 @@
 
 #include "squashfuse.h"
 
-#include <fuse.h>
+#include "squashfuse_dlopen.h"
+#ifndef ENABLE_DLOPEN
+#	include <fuse.h>
+#endif
 
 #include <sys/stat.h>
 
--- a/hl.c
+++ b/hl.c
@@ -33,6 +33,7 @@
 #include <stdlib.h>
 #include <string.h>
 
+int have_libloaded = 0;
 
 typedef struct sqfs_hl sqfs_hl;
 struct sqfs_hl {
@@ -42,9 +43,10 @@
 
 static sqfs_err sqfs_hl_lookup(sqfs **fs, sqfs_inode *inode,
 		const char *path) {
+	LOAD_SYMBOL(struct fuse_context *,fuse_get_context,(void));
 	bool found;
 	
-	sqfs_hl *hl = fuse_get_context()->private_data;
+	sqfs_hl *hl = DL(fuse_get_context)()->private_data;
 	*fs = &hl->fs;
 	if (inode)
 		*inode = hl->root; /* copy */
@@ -67,7 +69,8 @@
 }
 
 static void *sqfs_hl_op_init(struct fuse_conn_info *conn) {
-	return fuse_get_context()->private_data;
+	LOAD_SYMBOL(struct fuse_context *,fuse_get_context,(void));
+	return DL(fuse_get_context)()->private_data;
 }
 
 static int sqfs_hl_op_getattr(const char *path, struct stat *st) {
@@ -264,7 +267,16 @@
 	return NULL;
 }
 
+#ifdef ENABLE_DLOPEN
+#define fuse_main(argc, argv, op, user_data) \
+	DL(fuse_main_real)(argc, argv, op, sizeof(*(op)), user_data)
+#endif
+
 int main(int argc, char *argv[]) {
+	LOAD_SYMBOL(int,fuse_opt_parse,(struct fuse_args *args, void *data, const struct fuse_opt opts[], fuse_opt_proc_t proc));
+	LOAD_SYMBOL(int,fuse_opt_add_arg,(struct fuse_args *args, const char *arg));
+	LOAD_SYMBOL(int,fuse_main_real,(int argc, char *argv[], const struct fuse_operations *op, size_t op_size, void *user_data));  /* fuse_main */
+	LOAD_SYMBOL(void,fuse_opt_free_args,(struct fuse_args *args));
 	struct fuse_args args;
 	sqfs_opts opts;
 	sqfs_hl *hl;
@@ -299,7 +311,7 @@
 	opts.image = NULL;
 	opts.mountpoint = 0;
 	opts.offset = 0;
-	if (fuse_opt_parse(&args, &opts, fuse_opts, sqfs_opt_proc) == -1)
+	if (DL(fuse_opt_parse)(&args, &opts, fuse_opts, sqfs_opt_proc) == -1)
 		sqfs_usage(argv[0], true);
 	if (!opts.image)
 		sqfs_usage(argv[0], true);
@@ -308,8 +320,9 @@
 	if (!hl)
 		return -1;
 	
-	fuse_opt_add_arg(&args, "-s"); /* single threaded */
+	DL(fuse_opt_add_arg)(&args, "-s"); /* single threaded */
 	ret = fuse_main(args.argc, args.argv, &sqfs_hl_ops, hl);
-	fuse_opt_free_args(&args);
+	DL(fuse_opt_free_args)(&args);
+	CLOSE_LIBRARY;
 	return ret;
 }
--- a/ll.h
+++ b/ll.h
@@ -27,7 +27,10 @@
 
 #include "squashfuse.h"
 
-#include <fuse_lowlevel.h>
+#include "squashfuse_dlopen.h"
+#ifndef ENABLE_DLOPEN
+#	include <fuse_lowlevel.h>
+#endif
 
 typedef struct sqfs_ll sqfs_ll;
 struct sqfs_ll {
--- a/ll_inode.c
+++ b/ll_inode.c
@@ -348,12 +348,14 @@
 
 
 sqfs_err sqfs_ll_iget(fuse_req_t req, sqfs_ll_i *lli, fuse_ino_t i) {
+	LOAD_SYMBOL(void *,fuse_req_userdata,(fuse_req_t req));
+	LOAD_SYMBOL(int,fuse_reply_err,(fuse_req_t req, int err));
 	sqfs_err err = SQFS_OK;
-	lli->ll = fuse_req_userdata(req);
+	lli->ll = DL(fuse_req_userdata)(req);
 	if (i != SQFS_FUSE_INODE_NONE) {
 		err = sqfs_ll_inode(lli->ll, &lli->inode, i);
 		if (err)
-			fuse_reply_err(req, ENOENT);
+			DL(fuse_reply_err)(req, ENOENT);
 	}
 	return err;
 }
--- a/nonstd-daemon.c
+++ b/nonstd-daemon.c
@@ -28,11 +28,16 @@
 #include "nonstd-internal.h"
 
 #include <unistd.h>
-#include <fuse_lowlevel.h>
+
+#include "squashfuse_dlopen.h"
+#ifndef ENABLE_DLOPEN
+#	include <fuse_lowlevel.h>
+#endif
 
 int sqfs_ll_daemonize(int fg) {
 	#if HAVE_DECL_FUSE_DAEMONIZE
-		return fuse_daemonize(fg);
+		LOAD_SYMBOL(int,fuse_daemonize,(int foreground));
+		return DL(fuse_daemonize)(fg);
 	#else
 		return daemon(0,0);
 	#endif
--- a/ll.c
+++ b/ll.c
@@ -38,37 +38,41 @@
 
 static void sqfs_ll_op_getattr(fuse_req_t req, fuse_ino_t ino,
 		struct fuse_file_info *fi) {
+	LOAD_SYMBOL(int,fuse_reply_err,(fuse_req_t req, int err));
+	LOAD_SYMBOL(int,fuse_reply_attr,(fuse_req_t req, const struct stat *attr, double attr_timeout));
 	sqfs_ll_i lli;
 	struct stat st;
 	if (sqfs_ll_iget(req, &lli, ino))
 		return;
 	
 	if (sqfs_stat(&lli.ll->fs, &lli.inode, &st)) {
-		fuse_reply_err(req, ENOENT);
+		DL(fuse_reply_err)(req, ENOENT);
 	} else {
 		st.st_ino = ino;
-		fuse_reply_attr(req, &st, SQFS_TIMEOUT);
+		DL(fuse_reply_attr)(req, &st, SQFS_TIMEOUT);
 	}
 }
 
 static void sqfs_ll_op_opendir(fuse_req_t req, fuse_ino_t ino,
 		struct fuse_file_info *fi) {
+	LOAD_SYMBOL(int,fuse_reply_err,(fuse_req_t req, int err));
+	LOAD_SYMBOL(int,fuse_reply_open,(fuse_req_t req, const struct fuse_file_info *fi));
 	sqfs_ll_i *lli;
 	
 	fi->fh = (intptr_t)NULL;
 	
 	lli = malloc(sizeof(*lli));
 	if (!lli) {
-		fuse_reply_err(req, ENOMEM);
+		DL(fuse_reply_err)(req, ENOMEM);
 		return;
 	}
 	
 	if (sqfs_ll_iget(req, lli, ino) == SQFS_OK) {
 		if (!S_ISDIR(lli->inode.base.mode)) {
-			fuse_reply_err(req, ENOTDIR);
+			DL(fuse_reply_err)(req, ENOTDIR);
 		} else {
 			fi->fh = (intptr_t)lli;
-			fuse_reply_open(req, fi);
+			DL(fuse_reply_open)(req, fi);
 			return;
 		}
 	}
@@ -77,28 +81,35 @@
 
 static void sqfs_ll_op_create(fuse_req_t req, fuse_ino_t parent, const char *name,
 			      mode_t mode, struct fuse_file_info *fi) {
-	fuse_reply_err(req, EROFS);
+	LOAD_SYMBOL(int,fuse_reply_err,(fuse_req_t req, int err));
+	DL(fuse_reply_err)(req, EROFS);
 }
 
 static void sqfs_ll_op_releasedir(fuse_req_t req, fuse_ino_t ino,
 		struct fuse_file_info *fi) {
 	free((sqfs_ll_i*)(intptr_t)fi->fh);
-	fuse_reply_err(req, 0); /* yes, this is necessary */
+	LOAD_SYMBOL(int,fuse_reply_err,(fuse_req_t req, int err));
+	DL(fuse_reply_err)(req, 0); /* yes, this is necessary */
 }
 
 static size_t sqfs_ll_add_direntry(fuse_req_t req, char *buf, size_t bufsize,
 		const char *name, const struct stat *st, off_t off) {
 	#if HAVE_DECL_FUSE_ADD_DIRENTRY
-		return fuse_add_direntry(req, buf, bufsize, name, st, off);
+		LOAD_SYMBOL(size_t,fuse_add_direntry,(fuse_req_t req, char *buf, size_t bufsize, const char *name, const struct stat *stbuf, off_t off));
+		return DL(fuse_add_direntry)(req, buf, bufsize, name, st, off);
 	#else
-		size_t esize = fuse_dirent_size(strlen(name));
+		LOAD_SYMBOL(size_t,fuse_dirent_size(size_t namelen));
+		LOAD_SYMBOL(char *,fuse_add_dirent,(char *buf, const char *name, const struct stat *stbuf, off_t off));
+		size_t esize = DL(fuse_dirent_size)(strlen(name));
 		if (bufsize >= esize)
-			fuse_add_dirent(buf, name, st, off);
+			DL(fuse_add_dirent)(buf, name, st, off);
 		return esize;
 	#endif
 }
 static void sqfs_ll_op_readdir(fuse_req_t req, fuse_ino_t ino, size_t size,
 		off_t off, struct fuse_file_info *fi) {
+	LOAD_SYMBOL(int,fuse_reply_err,(fuse_req_t req, int err));
+	LOAD_SYMBOL(int,fuse_reply_buf,(fuse_req_t req, const char *buf, size_t size));
 	sqfs_err sqerr;
 	sqfs_dir dir;
 	sqfs_name namebuf;
@@ -135,14 +146,16 @@
 	}
 	
 	if (err)
-		fuse_reply_err(req, err);
+		DL(fuse_reply_err)(req, err);
 	else
-		fuse_reply_buf(req, buf, bufpos - buf);
+		DL(fuse_reply_buf)(req, buf, bufpos - buf);
 	free(buf);
 }
 
 static void sqfs_ll_op_lookup(fuse_req_t req, fuse_ino_t parent,
 		const char *name) {
+	LOAD_SYMBOL(int,fuse_reply_err,(fuse_req_t req, int err));
+	LOAD_SYMBOL(int,fuse_reply_entry,(fuse_req_t req, const struct fuse_entry_param *e));
 	sqfs_ll_i lli;
 	sqfs_err sqerr;
 	sqfs_name namebuf;
@@ -154,7 +167,7 @@
 		return;
 	
 	if (!S_ISDIR(lli.inode.base.mode)) {
-		fuse_reply_err(req, ENOTDIR);
+		DL(fuse_reply_err)(req, ENOTDIR);
 		return;
 	}
 	
@@ -162,55 +175,58 @@
 	sqerr = sqfs_dir_lookup(&lli.ll->fs, &lli.inode, name, strlen(name), &entry,
 		&found);
 	if (sqerr) {
-		fuse_reply_err(req, EIO);
+		DL(fuse_reply_err)(req, EIO);
 		return;
 	}
 	if (!found) {
-		fuse_reply_err(req, ENOENT);
+		DL(fuse_reply_err)(req, ENOENT);
 		return;
 	}
 	
 	if (sqfs_inode_get(&lli.ll->fs, &inode, sqfs_dentry_inode(&entry))) {
-		fuse_reply_err(req, ENOENT);
+		DL(fuse_reply_err)(req, ENOENT);
 	} else {
 		struct fuse_entry_param fentry;
 		memset(&fentry, 0, sizeof(fentry));
 		if (sqfs_stat(&lli.ll->fs, &inode, &fentry.attr)) {
-			fuse_reply_err(req, EIO);
+			DL(fuse_reply_err)(req, EIO);
 		} else {
 			fentry.attr_timeout = fentry.entry_timeout = SQFS_TIMEOUT;
 			fentry.ino = lli.ll->ino_register(lli.ll, &entry);
 			fentry.attr.st_ino = fentry.ino;
-			fuse_reply_entry(req, &fentry);
+			DL(fuse_reply_entry)(req, &fentry);
 		}
 	}
 }
 
 static void sqfs_ll_op_open(fuse_req_t req, fuse_ino_t ino,
 		struct fuse_file_info *fi) {
+	LOAD_SYMBOL(int,fuse_reply_err,(fuse_req_t req, int err));
+	LOAD_SYMBOL(int,fuse_reply_open,(fuse_req_t req, const struct fuse_file_info *fi));
+	LOAD_SYMBOL(void *,fuse_req_userdata,(fuse_req_t req));
 	sqfs_inode *inode;
 	sqfs_ll *ll;
 	
 	if (fi->flags & (O_WRONLY | O_RDWR)) {
-		fuse_reply_err(req, EROFS);
+		DL(fuse_reply_err)(req, EROFS);
 		return;
 	}
 	
 	inode = malloc(sizeof(sqfs_inode));
 	if (!inode) {
-		fuse_reply_err(req, ENOMEM);
+		DL(fuse_reply_err)(req, ENOMEM);
 		return;
 	}
 	
-	ll = fuse_req_userdata(req);
+	ll = DL(fuse_req_userdata)(req);
 	if (sqfs_ll_inode(ll, inode, ino)) {
-		fuse_reply_err(req, ENOENT);
+		DL(fuse_reply_err)(req, ENOENT);
 	} else if (!S_ISREG(inode->base.mode)) {
-		fuse_reply_err(req, EISDIR);
+		DL(fuse_reply_err)(req, EISDIR);
 	} else {
 		fi->fh = (intptr_t)inode;
 		fi->keep_cache = 1;
-		fuse_reply_open(req, fi);
+		DL(fuse_reply_open)(req, fi);
 		return;
 	}
 	free(inode);
@@ -218,37 +234,43 @@
 
 static void sqfs_ll_op_release(fuse_req_t req, fuse_ino_t ino,
 		struct fuse_file_info *fi) {
+	LOAD_SYMBOL(int,fuse_reply_err,(fuse_req_t req, int err));
 	free((sqfs_inode*)(intptr_t)fi->fh);
 	fi->fh = 0;
-	fuse_reply_err(req, 0);
+	DL(fuse_reply_err)(req, 0);
 }
 
 static void sqfs_ll_op_read(fuse_req_t req, fuse_ino_t ino,
 		size_t size, off_t off, struct fuse_file_info *fi) {
-	sqfs_ll *ll = fuse_req_userdata(req);
+	LOAD_SYMBOL(void *,fuse_req_userdata,(fuse_req_t req));
+	LOAD_SYMBOL(int,fuse_reply_err,(fuse_req_t req, int err));
+	LOAD_SYMBOL(int,fuse_reply_buf,(fuse_req_t req, const char *buf, size_t size));
+	sqfs_ll *ll = DL(fuse_req_userdata)(req);
 	sqfs_inode *inode = (sqfs_inode*)(intptr_t)fi->fh;
 	sqfs_err err = SQFS_OK;
 	
 	off_t osize;
 	char *buf = malloc(size);
 	if (!buf) {
-		fuse_reply_err(req, ENOMEM);
+		DL(fuse_reply_err)(req, ENOMEM);
 		return;
 	}
 	
 	osize = size;
 	err = sqfs_read_range(&ll->fs, inode, off, &osize, buf);
 	if (err) {
-		fuse_reply_err(req, EIO);
+		DL(fuse_reply_err)(req, EIO);
 	} else if (osize == 0) { /* EOF */
-		fuse_reply_buf(req, NULL, 0);
+		DL(fuse_reply_buf)(req, NULL, 0);
 	} else {
-		fuse_reply_buf(req, buf, osize);
+		DL(fuse_reply_buf)(req, buf, osize);
 	}
 	free(buf);
 }
 
 static void sqfs_ll_op_readlink(fuse_req_t req, fuse_ino_t ino) {
+	LOAD_SYMBOL(int,fuse_reply_err,(fuse_req_t req, int err));
+	LOAD_SYMBOL(int,fuse_reply_readlink,(fuse_req_t req, const char *link));
 	char *dst;
 	size_t size;
 	sqfs_ll_i lli;
@@ -256,21 +278,24 @@
 		return;
 	
 	if (!S_ISLNK(lli.inode.base.mode)) {
-		fuse_reply_err(req, EINVAL);
+		DL(fuse_reply_err)(req, EINVAL);
 	} else if (sqfs_readlink(&lli.ll->fs, &lli.inode, NULL, &size)) {
-		fuse_reply_err(req, EIO);
+		DL(fuse_reply_err)(req, EIO);
 	} else if (!(dst = malloc(size + 1))) {
-		fuse_reply_err(req, ENOMEM);
+		DL(fuse_reply_err)(req, ENOMEM);
 	} else if (sqfs_readlink(&lli.ll->fs, &lli.inode, dst, &size)) {
-		fuse_reply_err(req, EIO);
+		DL(fuse_reply_err)(req, EIO);
 		free(dst);
 	} else {
-		fuse_reply_readlink(req, dst);
+		DL(fuse_reply_readlink)(req, dst);
 		free(dst);
 	}
 }
 
 static void sqfs_ll_op_listxattr(fuse_req_t req, fuse_ino_t ino, size_t size) {
+	LOAD_SYMBOL(int,fuse_reply_err,(fuse_req_t req, int err));
+	LOAD_SYMBOL(int,fuse_reply_xattr,(fuse_req_t req, size_t count));
+	LOAD_SYMBOL(int,fuse_reply_buf,(fuse_req_t req, const char *buf, size_t size));
 	sqfs_ll_i lli;
 	char *buf;
 	int ferr;
@@ -280,17 +305,17 @@
 
 	buf = NULL;
 	if (size && !(buf = malloc(size))) {
-		fuse_reply_err(req, ENOMEM);
+		DL(fuse_reply_err)(req, ENOMEM);
 		return;
 	}
 	
 	ferr = sqfs_listxattr(&lli.ll->fs, &lli.inode, buf, &size);
 	if (ferr) {
-		fuse_reply_err(req, ferr);
+		DL(fuse_reply_err)(req, ferr);
 	} else if (buf) {
-		fuse_reply_buf(req, buf, size);
+		DL(fuse_reply_buf)(req, buf, size);
 	} else {
-		fuse_reply_xattr(req, size);
+		DL(fuse_reply_xattr)(req, size);
 	}
 	free(buf);
 }
@@ -301,13 +326,16 @@
 		, uint32_t position
 #endif
 		) {
+	LOAD_SYMBOL(int,fuse_reply_err,(fuse_req_t req, int err));
+	LOAD_SYMBOL(int,fuse_reply_xattr,(fuse_req_t req, size_t count));
+	LOAD_SYMBOL(int,fuse_reply_buf,(fuse_req_t req, const char *buf, size_t size));
 	sqfs_ll_i lli;
 	char *buf = NULL;
 	size_t real = size;
 
 #ifdef FUSE_XATTR_POSITION
 	if (position != 0) { /* We don't support resource forks */
-		fuse_reply_err(req, EINVAL);
+		DL(fuse_reply_err)(req, EINVAL);
 		return;
 	}
 #endif
@@ -316,26 +344,27 @@
 		return;
 	
 	if (!(buf = malloc(size)))
-		fuse_reply_err(req, ENOMEM);
+		DL(fuse_reply_err)(req, ENOMEM);
 	else if (sqfs_xattr_lookup(&lli.ll->fs, &lli.inode, name, buf, &real))
-		fuse_reply_err(req, EIO);
+		DL(fuse_reply_err)(req, EIO);
 	else if (real == 0)
-		fuse_reply_err(req, sqfs_enoattr());
+		DL(fuse_reply_err)(req, sqfs_enoattr());
 	else if (size == 0)
-		fuse_reply_xattr(req, real);
+		DL(fuse_reply_xattr)(req, real);
 	else if (size < real)
-		fuse_reply_err(req, ERANGE);
+		DL(fuse_reply_err)(req, ERANGE);
 	else
-		fuse_reply_buf(req, buf, real);
+		DL(fuse_reply_buf)(req, buf, real);
 	free(buf);
 }
 
 static void sqfs_ll_op_forget(fuse_req_t req, fuse_ino_t ino,
 		unsigned long nlookup) {
+	LOAD_SYMBOL(void,fuse_reply_none,(fuse_req_t req));
 	sqfs_ll_i lli;
 	sqfs_ll_iget(req, &lli, SQFS_FUSE_INODE_NONE);
 	lli.ll->ino_forget(lli.ll, ino, nlookup);
-	fuse_reply_none(req);
+	DL(fuse_reply_none)(req);
 }
 
 
@@ -348,23 +377,27 @@
 
 static sqfs_err sqfs_ll_mount(sqfs_ll_chan *ch, const char *mountpoint,
 		struct fuse_args *args) {
+	LOAD_SYMBOL(struct fuse_chan *,fuse_mount,(const char *mountpoint, struct fuse_args *args));
 	#ifdef HAVE_NEW_FUSE_UNMOUNT
-		ch->ch = fuse_mount(mountpoint, args);
+		ch->ch = DL(fuse_mount)(mountpoint, args);
 	#else
-		ch->fd = fuse_mount(mountpoint, args);
+		LOAD_SYMBOL(struct fuse_chan *,fuse_kern_chan_new,(int fd));
+		ch->fd = DL(fuse_mount)(mountpoint, args);
 		if (ch->fd == -1)
 			return SQFS_ERR;
-		ch->ch = fuse_kern_chan_new(ch->fd);
+		ch->ch = DL(fuse_kern_chan_new)(ch->fd);
 	#endif
 	return ch->ch ? SQFS_OK : SQFS_ERR;
 }
 
 static void sqfs_ll_unmount(sqfs_ll_chan *ch, const char *mountpoint) {
 	#ifdef HAVE_NEW_FUSE_UNMOUNT
-		fuse_unmount(mountpoint, ch->ch);
+		LOAD_SYMBOL(void,fuse_unmount,(const char *mountpoint, struct fuse_chan *ch));
+		DL(fuse_unmount)(mountpoint, ch->ch);
 	#else
+		LOAD_SYMBOL(void,fuse_unmount,(const char *mountpoint));
 		close(ch->fd);
-		fuse_unmount(mountpoint);
+		DL(fuse_unmount)(mountpoint);
 	#endif
 }
 
@@ -391,6 +424,19 @@
 }
 
 int fusefs_main(int argc, char *argv[], void (*mounted) (void)) {
+	LOAD_SYMBOL(int,fuse_opt_parse,(struct fuse_args *args, void *data, const struct fuse_opt opts[], fuse_opt_proc_t proc));
+	LOAD_SYMBOL(int,fuse_parse_cmdline,(struct fuse_args *args, char **mountpoint, int *multithreaded, int *foreground));
+	LOAD_SYMBOL(struct fuse_session *,fuse_lowlevel_new,(struct fuse_args *args, const struct fuse_lowlevel_ops *op, size_t op_size, void *userdata));
+	LOAD_SYMBOL(int,fuse_set_signal_handlers,(struct fuse_session *se));
+	LOAD_SYMBOL(void,fuse_session_add_chan,(struct fuse_session *se, struct fuse_chan *ch));
+	LOAD_SYMBOL(int,fuse_session_loop,(struct fuse_session *se));
+	LOAD_SYMBOL(void,fuse_remove_signal_handlers,(struct fuse_session *se));
+#if HAVE_DECL_FUSE_SESSION_REMOVE_CHAN
+	LOAD_SYMBOL(void,fuse_session_remove_chan,(struct fuse_chan *ch));
+#endif
+	LOAD_SYMBOL(void,fuse_session_destroy,(struct fuse_session *se));
+	LOAD_SYMBOL(void,fuse_opt_free_args,(struct fuse_args *args));
+
 	struct fuse_args args;
 	sqfs_opts opts;
 	
@@ -429,10 +475,10 @@
 	opts.image = NULL;
 	opts.mountpoint = 0;
 	opts.offset = 0;
-	if (fuse_opt_parse(&args, &opts, fuse_opts, sqfs_opt_proc) == -1)
+	if (DL(fuse_opt_parse)(&args, &opts, fuse_opts, sqfs_opt_proc) == -1)
 		sqfs_usage(argv[0], true);
 
-	if (fuse_parse_cmdline(&args, &mountpoint, &mt, &fg) == -1)
+	if (DL(fuse_parse_cmdline)(&args, &mountpoint, &mt, &fg) == -1)
 		sqfs_usage(argv[0], true);
 	if (mountpoint == NULL)
 		sqfs_usage(argv[0], true);
@@ -445,33 +491,34 @@
 		sqfs_ll_chan ch;
 		err = -1;
 		if (sqfs_ll_mount(&ch, mountpoint, &args) == SQFS_OK) {
-			struct fuse_session *se = fuse_lowlevel_new(&args,
+			struct fuse_session *se = DL(fuse_lowlevel_new)(&args,
 				&sqfs_ll_ops, sizeof(sqfs_ll_ops), ll);	
 			if (se != NULL) {
 				if (sqfs_ll_daemonize(fg) != -1) {
-					if (fuse_set_signal_handlers(se) != -1) {
-						fuse_session_add_chan(se, ch.ch);
+					if (DL(fuse_set_signal_handlers)(se) != -1) {
+						DL(fuse_session_add_chan)(se, ch.ch);
 				if (mounted)
 				  mounted ();
 						/* FIXME: multithreading */
-						err = fuse_session_loop(se);
-						fuse_remove_signal_handlers(se);
+						err = DL(fuse_session_loop)(se);
+						DL(fuse_remove_signal_handlers)(se);
 						#if HAVE_DECL_FUSE_SESSION_REMOVE_CHAN
-							fuse_session_remove_chan(ch.ch);
+							DL(fuse_session_remove_chan)(ch.ch);
 						#endif
 					}
 				}
-				fuse_session_destroy(se);
+				DL(fuse_session_destroy)(se);
 			}
 			sqfs_ll_destroy(ll);
 			sqfs_ll_unmount(&ch, mountpoint);
 		}
 	}
-	fuse_opt_free_args(&args);
+	DL(fuse_opt_free_args)(&args);
 	if (mounted)
 	  rmdir (mountpoint);
 	free(ll);
 	free(mountpoint);
+	CLOSE_LIBRARY;
 	
 	return -err;
 }