File 0112-Update-the-makefile-for-generating-the-help-messages.patch of Package btrfsprogs

From e2d4509137cb8713b02a030e6116b041ae82588d Mon Sep 17 00:00:00 2001
From: Goffredo Baroncelli <kreijack@inwind.it>
Date: Sat, 16 Jul 2011 12:11:52 +0200
Subject: [PATCH 13/35] Update the makefile for generating the help messages.

Update the makefile for generating the help messages.
---
 Makefile |   17 ++++++++++++++++-
 1 files changed, 16 insertions(+), 1 deletions(-)

Index: btrfs-progs-v0.19-118-gfdb6c04/Makefile
===================================================================
--- btrfs-progs-v0.19-118-gfdb6c04.orig/Makefile
+++ btrfs-progs-v0.19-118-gfdb6c04/Makefile
@@ -38,8 +38,9 @@ all: version $(progs) manpages
 version:
 	bash version.sh
 
-btrfs: $(objects) btrfs.o btrfs_cmds.o scrub.o
+btrfs: $(objects) btrfs.o btrfs_cmds.o scrub.o helpmsg.o
 	$(CC) $(CFLAGS) -o btrfs btrfs.o btrfs_cmds.o scrub.o \
+		helpmsg.o \
 		$(objects) $(LDFLAGS) $(LIBS) -lpthread
 
 calc-size: $(objects) calc-size.o
@@ -108,6 +109,19 @@ man/btrfs.8.in: helpextract $(btrfs_man_
 manpages: man/btrfs.8.in
 	cd man; make
 
+helpmsg.c: helpextract $(btrfs_man_page_source)
+	echo  >$@ "/*"
+	echo >>$@ " * this file contains the help messages. It is "
+	echo >>$@ " * automatically generated. do not edit ! "
+	echo >>$@ " */"
+	echo >>$@
+	echo >>$@ "#define NULL 0"
+	echo >>$@
+
+	echo -n "char * help_messages[] = " >>$@
+	./helpextract --c-array $(btrfs_man_page_source) >>$@
+	 echo >>$@ ";"
+
 install-man:
 	cd man; make install
 
@@ -115,6 +129,7 @@ clean :
 	rm -f man/btrfs.8.in
 	rm -f $(progs) cscope.out *.o .*.d btrfs-convert btrfs-image btrfs-select-super \
 	      btrfs-zero-log btrfstune dir-test ioctl-test quick-test version.h
+	rm -f helpmsg.c
 	cd man; make clean
 
 install: $(progs) install-man