build/ops: make dist needs files with names > 99 characters

When running make distdir=ceph-9.0.3-1870-gfd861bb dist, a few files
have names longer than 99 characters and discarded, which then causes
the resulting tarbal to be incomplete:

tar: ceph-9.0.3-1870-gfd861bb/src/rocksdb/utilities/write_batch_with_index/write_batch_with_index_internal.cc: file name is too long (max 99); not dumped
tar: ceph-9.0.3-1870-gfd861bb/src/rocksdb/utilities/write_batch_with_index/write_batch_with_index_internal.h: file name is too long (max 99); not dumped

Use the tar-ustar format instead of the legacy v7
format (http://www.gnu.org/software/automake/manual/automake.html#Options). It
is unlikely machines with a C++11 compiler also have an antique tar
binary that would only support v7.

Signed-off-by: Loic Dachary <ldachary@redhat.com>

diff --git a/configure.ac b/configure.ac
index 3e20affe674da618828ffdc28c1f32e0836930ae..9bef7677be287222e4f8422ac83011a41d2c2903 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -46,13 +46,12 @@ AC_CANONICAL_TARGET
 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
 
 # Automake
-AM_INIT_AUTOMAKE
 AM_PROG_CC_C_O
 AM_PROG_LIBTOOL
 AM_PROG_AS
 
 
-AM_INIT_AUTOMAKE([foreign parallel-tests])
+AM_INIT_AUTOMAKE([foreign parallel-tests tar-ustar])
 # enable make V=0 (if automake >1.11)
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])