Merge pull request #1030 from vojtechtrefny/master_fs-warnings-fix

fs: Fix ignoring errors from libext2fs

src/plugins/fs/Makefile.am

@@ -2,7 +2,7 @@ AUTOMAKE_OPTIONS = subdir-objects
 
 lib_LTLIBRARIES = libbd_fs.la
 
-libbd_fs_la_CFLAGS   = $(GLIB_CFLAGS) $(GIO_CFLAGS) $(BLKID_CFLAGS) $(MOUNT_CFLAGS) $(UUID_CFLAGS) $(EXT2FS_CFLAGS) -Wall -Wextra -Werror -Wno-unused-parameter -Wno-shift-count-overflow
+libbd_fs_la_CFLAGS   = $(GLIB_CFLAGS) $(GIO_CFLAGS) $(BLKID_CFLAGS) $(MOUNT_CFLAGS) $(UUID_CFLAGS) $(EXT2FS_CFLAGS) -Wall -Wextra -Werror -Wno-error=unused-parameter -Wno-error=shift-count-overflow
 libbd_fs_la_LIBADD   = ${builddir}/../../utils/libbd_utils.la $(GLIB_LIBS) $(GIO_LIBS) $(BLKID_LIBS) $(MOUNT_LIBS) $(UUID_LIBS) $(EXT2FS_LIBS)
 libbd_fs_la_LDFLAGS	 = -L${srcdir}/../../utils/ -version-info 3:0:0 -Wl,--no-undefined -export-symbols-regex '^bd_.*'
 libbd_fs_la_CPPFLAGS = -I${builddir}/../../../include/ -I${srcdir}/../