configure: check for msync() for portability reasons

Turns out the Hurd defines MS_SYNC but doesn't define msync().  Go
figure.   So check for both.

Reported by Svante Signell.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/configure b/configure
index 0e8d6fb..9f5eeb5 100755 (executable)
--- a/configure
+++ b/configure
@@ -10893,7 +10893,7 @@ if test "$ac_res" != no; then :
 fi
 
 fi
-for ac_func in chflags getrusage llseek lseek64 open64 fstat64 ftruncate64 getmntinfo strtoull strcasecmp srandom jrand48 fchown mallinfo fdatasync quotactl strnlen strptime strdup sysconf pathconf posix_memalign memalign valloc __secure_getenv prctl mmap utime setresuid setresgid usleep nanosleep getdtablesize getrlimit sync_file_range posix_fadvise fallocate fallocate64 blkid_probe_get_topology mbstowcs backtrace
+for ac_func in chflags getrusage llseek lseek64 open64 fstat64 ftruncate64 getmntinfo strtoull strcasecmp srandom jrand48 fchown mallinfo fdatasync quotactl strnlen strptime strdup sysconf pathconf posix_memalign memalign valloc __secure_getenv prctl mmap msync utime setresuid setresgid usleep nanosleep getdtablesize getrlimit sync_file_range posix_fadvise fallocate fallocate64 blkid_probe_get_topology mbstowcs backtrace
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"

diff --git a/configure.in b/configure.in
index 2b81619..c304a8d 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -914,7 +914,7 @@ if test -n "$BLKID_CMT"; then
   AC_SEARCH_LIBS([blkid_probe_all], [blkid])
 fi
 dnl
-AC_CHECK_FUNCS(chflags getrusage llseek lseek64 open64 fstat64 ftruncate64 getmntinfo strtoull strcasecmp srandom jrand48 fchown mallinfo fdatasync quotactl strnlen strptime strdup sysconf pathconf posix_memalign memalign valloc __secure_getenv prctl mmap utime setresuid setresgid usleep nanosleep getdtablesize getrlimit sync_file_range posix_fadvise fallocate fallocate64 blkid_probe_get_topology mbstowcs backtrace)
+AC_CHECK_FUNCS(chflags getrusage llseek lseek64 open64 fstat64 ftruncate64 getmntinfo strtoull strcasecmp srandom jrand48 fchown mallinfo fdatasync quotactl strnlen strptime strdup sysconf pathconf posix_memalign memalign valloc __secure_getenv prctl mmap msync utime setresuid setresgid usleep nanosleep getdtablesize getrlimit sync_file_range posix_fadvise fallocate fallocate64 blkid_probe_get_topology mbstowcs backtrace)
 dnl
 dnl Check to see if -lsocket is required (solaris) to make something
 dnl that uses socket() to compile; this is needed for the UUID library

diff --git a/lib/ext2fs/tdb.c b/lib/ext2fs/tdb.c
index 25ce792..79534eb 100644 (file)
--- a/lib/ext2fs/tdb.c
+++ b/lib/ext2fs/tdb.c
@@ -1752,7 +1752,7 @@ static int transaction_sync(struct tdb_context *tdb, tdb_off_t offset, tdb_len_t
                TDB_LOG((tdb, TDB_DEBUG_FATAL, "tdb_transaction: fsync failed\n"));
                return -1;
        }
-#ifdef MS_SYNC
+#if defined(HAVE_MSYNC) && defined(MS_SYNC)
        if (tdb->map_ptr) {
                tdb_off_t moffset = offset & ~(tdb->page_size-1);
                if (msync(moffset + (char *)tdb->map_ptr,