AS_IF([test "x$enable_convert" = xyes], [DISABLE_BTRFSCONVERT=0], [DISABLE_BTRFSCONVERT=1])
AC_SUBST([DISABLE_BTRFSCONVERT])
+AC_ARG_WITH([convert],
+ AS_HELP_STRING([[[]--with-convert[[=auto]]]], [built-in filesystems for convert (default: auto)
+supported (comma separated list): ext2]),
+ [], [with_convert=auto]
+)
+
+if test "$with_convert" = "yes"; then
+ with_convert=auto
+fi
+
+if test "$with_convert" = "no"; then
+ with_convert=
+fi
+
+convertfs=
+BTRFSCONVERT_EXT2=0
if test "x$enable_convert" = xyes; then
- PKG_CHECK_MODULES(EXT2FS, [ext2fs])
- PKG_CHECK_MODULES(COM_ERR, [com_err])
+ if test "x$with_convert" = "xauto" || echo "$with_convert" | grep -q "ext2"; then
+ PKG_CHECK_MODULES(EXT2FS, [ext2fs >= 1.42],,
+ [PKG_CHECK_MODULES(EXT2FS, [ext2fs],
+ [AC_DEFINE([HAVE_OLD_E2FSPROGS], [1],
+ [E2fsprogs does not support BIGALLOC])]
+ )])
+ PKG_CHECK_MODULES(COM_ERR, [com_err])
+ convertfs="${convertfs:+$convertfs,}ext2"
+ BTRFSCONVERT_EXT2=1
+ fi
+fi
+AC_SUBST([BTRFSCONVERT_EXT2])
+
+# catch typos
+tmp=$(echo "$with_convert" | sed -e 's/auto//' | sed -e 's/ext2//' | sed -e 's/,\+/,/')
+if ! test "x$tmp" = "x"; then
+ AC_MSG_ERROR([unknown tokens for --with-convert: $tmp])
+fi
+
+if test "$DISABLE_BTRFSCONVERT" = 0 && test "x$convertfs" = "x"; then
+ AC_MSG_ERROR([no filesystems for convert, use --disable-convert instead])
fi
+HAVE_OWN_FIEMAP_EXTENT_SHARED_DEFINE=0
+AX_CHECK_DEFINE([linux/fiemap.h], [FIEMAP_EXTENT_SHARED], [],
+ [HAVE_OWN_FIEMAP_EXTENT_SHARED_DEFINE=1
+ AC_MSG_WARN([no definition of FIEMAP_EXTENT_SHARED found, probably old kernel, will use own defintion, 'btrfs fi du' might report wrong numbers])])
+
+if test "x$HAVE_OWN_FIEMAP_EXTENT_SHARED_DEFINE" == "x1"; then
+AC_DEFINE([HAVE_OWN_FIEMAP_EXTENT_SHARED_DEFINE], [1], [We defined FIEMAP_EXTENT_SHARED])
+else
+AC_DEFINE([HAVE_OWN_FIEMAP_EXTENT_SHARED_DEFINE], [0], [We did not define FIEMAP_EXTENT_SHARED])
+fi
dnl Define <NAME>_LIBS= and <NAME>_CFLAGS= by pkg-config
dnl
PKG_CHECK_MODULES(ZLIB, [zlib])
PKG_STATIC(ZLIB_LIBS_STATIC, [zlib])
+# udev v190 introduced the btrfs builtin and a udev rule to use it.
+# Our udev rule gives us the friendly dm names but isn't required (or valid)
+# on earlier releases.
+UDEVDIR=
+if pkg-config udev --atleast-version 190; then
+ UDEVDIR="$(pkg-config udev --variable=udevdir)"
+fi
+AC_SUBST(UDEVDIR)
+
dnl lzo library does not provide pkg-config, let use classic way
AC_CHECK_LIB([lzo2], [lzo_version], [
LZO2_LIBS="-llzo2"
documentation: ${enable_documentation}
backtrace support: ${enable_backtrace}
- btrfs-convert: ${enable_convert}
+ btrfs-convert: ${enable_convert} ${convertfs:+($convertfs)}
Type 'make' to compile.
])