xfstests: add fssum tool

fssum is a tool to build a recursive checksum for a file system. The home
repository of fssum is

    git://git.kernel.org/pub/scm/linux/kernel/git/arne/far-progs.git

Signed-off-by: Jan Schmidt <list.xfs@jan-o-sch.net>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Rich Johnston <rjohnston@sgi.com>

.gitignore

@@ -45,6 +45,7 @@
 /src/fill
 /src/fill2
 /src/fs_perms
+/src/fssum
 /src/fstest
 /src/fsync-tester
 /src/ftrunc

aclocal.m4

@@ -44,6 +44,7 @@ m4_include([m4/package_attrdev.m4])
 m4_include([m4/package_dmapidev.m4])
 m4_include([m4/package_gdbmdev.m4])
 m4_include([m4/package_globals.m4])
+m4_include([m4/package_ssldev.m4])
 m4_include([m4/package_utilies.m4])
 m4_include([m4/package_uuiddev.m4])
 m4_include([m4/package_xfslibs.m4])

configure.ac

@@ -70,6 +70,7 @@ in
 		AC_PACKAGE_WANT_FALLOCATE
 		AC_PACKAGE_WANT_LINUX_PRCTL_H
 		AC_PACKAGE_WANT_LINUX_FS_H
+		AC_PACKAGE_WANT_SSL
 		;;
 esac
 

include/builddefs.in

@@ -61,6 +61,7 @@ ENABLE_SHARED = @enable_shared@
 HAVE_DB = @have_db@
 HAVE_AIO = @have_aio@
 HAVE_FALLOCATE = @have_fallocate@
+HAVE_SSL = @have_ssl@
 HAVE_DMAPI = @have_dmapi@
 HAVE_ATTR_LIST = @have_attr_list@
 HAVE_FIEMAP = @have_fiemap@

m4/Makefile

@@ -16,6 +16,7 @@ LSRCFILES = \
 	package_libcdev.m4 \
 	package_ncurses.m4 \
 	package_pthread.m4 \
+	package_ssldev.m4 \
 	package_types.m4 \
 	package_utilies.m4 \
 	package_uuiddev.m4 \

m4/package_ssldev.m4

@@ -0,0 +1,4 @@
+AC_DEFUN([AC_PACKAGE_WANT_SSL],
+  [ AC_CHECK_HEADERS(openssl/md5.h, [ have_ssl=true ], [ have_ssl=false ])
+    AC_SUBST(have_ssl)
+  ])

src/Makefile

@@ -56,6 +56,14 @@ ifeq ($(HAVE_AIO), true)
 SUBDIRS += aio-dio-regress
 endif
 
+ifeq ($(HAVE_SSL), true)
+TARGETS += fssum
+LLDLIBS += -lssl -lcrypto
+ifeq ($(PKG_PLATFORM),linux)
+CFLAGS += -D__LINUX__
+endif
+endif
+
 CFILES = $(TARGETS:=.c)
 LDIRT = $(TARGETS)