+dnl
+dnl Check for ext2_ino_t type
+dnl
+AC_MSG_CHECKING(for ext2_ino_t type in libext2fs headers)
+AC_TRY_COMPILE([#include <stdio.h>
+#include <linux/ext2_fs.h>
+#include <ext2fs/ext2fs.h>],
+[ext2_ino_t ino = 0;],
+[AC_DEFINE(HAVE_EXT2_INO_T) AC_MSG_RESULT(yes)],
+AC_MSG_RESULT(no))
+
+dnl
+dnl Check for s_journal_inum field in ext2_super_block struct
+dnl
+AC_MSG_CHECKING(for s_journal_inum field in ext2_super_block struct)
+AC_TRY_COMPILE([#include <stdio.h>
+#include <linux/ext2_fs.h>
+#include <ext2fs/ext2fs.h>],
+[struct ext2_super_block es; es.s_journal_inum = 0;],
+[AC_DEFINE(HAVE_EXT2_JOURNAL_INUM) AC_MSG_RESULT(yes)],
+AC_MSG_RESULT(no))
+
+dnl
+dnl Check for termcap libraries
+dnl
+AC_CHECK_LIB(termcap, tgetent, [termcap_lib=yes], [termcap_lib=no])
+if test "$termcap_lib" = no; then
+ if test "$READLINE" = "-lreadline -ltermcap"; then
+ AC_MSG_ERROR(You need to install the GNU termcap libraries first)
+ fi
+fi
+