Call built-in blkid conditionaly (udev version >= 176), call standard blkid

with full path otherwise.

Author: prajnoha

udev/13-dm-disk.rules renamed to udev/13-dm-disk.rules.in

@@ -19,7 +19,7 @@ ENV{DM_UUID}=="?*", SYMLINK+="disk/by-id/dm-uuid-$env{DM_UUID}"
 
 ENV{DM_SUSPENDED}=="1", GOTO="dm_end"
 
-IMPORT{program}="blkid"
+(BLKID_RULE)
 ENV{DM_UDEV_LOW_PRIORITY_FLAG}=="1", OPTIONS="link_priority=-100"
 ENV{ID_FS_USAGE}=="filesystem|other|crypto", ENV{ID_FS_UUID_ENC}=="?*", SYMLINK+="disk/by-uuid/$env{ID_FS_UUID_ENC}"
 ENV{ID_FS_USAGE}=="filesystem|other", ENV{ID_FS_LABEL_ENC}=="?*", SYMLINK+="disk/by-label/$env{ID_FS_LABEL_ENC}"

udev/Makefile.in

@@ -19,14 +19,20 @@ DM_RULES=10-dm.rules 13-dm-disk.rules 95-dm-notify.rules
 LVM_RULES=11-dm-lvm.rules
 DM_DIR=$(shell grep "\#define DM_DIR" $(top_srcdir)/libdm/misc/dm-ioctl.h | awk '{print $$3}')
 
+ifeq ("@UDEV_HAS_BUILTIN_BLKID@", "yes")
+	BLKID_RULE=IMPORT{builtin}=\"blkid\"
+else
+	BLKID_RULE=IMPORT{program}=\"\$$env{DM_SBIN_PATH}\/blkid -o udev -p \$$tempnode\"
+endif
+
 CLEAN_TARGETS=10-dm.rules
 
 include $(top_builddir)/make.tmpl
 
 vpath %.rules $(srcdir)
 
 %.rules: %.rules.in
-	$(SED) -e "s/(DM_DIR)/$(DM_DIR)/" $< >$@
+	$(SED) -e "s/(DM_DIR)/$(DM_DIR)/" -e "s/(BLKID_RULE)/$(BLKID_RULE)/" $< >$@
 
 %_install: %.rules
 	$(INSTALL_DATA) -D $< $(udevdir)/$(<F)