AC_INIT([btrfs-progs], m4_esyscmd([./version.sh --configure]), [linux-btrfs@vger.kernel.org],, [http://btrfs.wiki.kernel.org]) if test "x$PACKAGE_URL" = "x"; then AC_DEFINE([PACKAGE_URL], ["http://btrfs.wiki.kernel.org"], [URL]) fi dnl library version LIBBTRFS_MAJOR=0 LIBBTRFS_MINOR=1 LIBBTRFS_PATCHLEVEL=1 CFLAGS=${CFLAGS:-"-g -O1 -Wall -D_FORTIFY_SOURCE=2"} AC_SUBST([CFLAGS]) AC_PREREQ([2.60]) AC_CONFIG_AUX_DIR([config]) dnl AC_USE_SYSTEM_EXTENSIONS must be called before any macros that run dnl the compiler (like AC_PROG_LIBTOOL) to avoid autoconf errors. AC_USE_SYSTEM_EXTENSIONS AC_CONFIG_SRCDIR([btrfs.c]) AC_PREFIX_DEFAULT([/usr/local]) AC_PROG_CC AC_CANONICAL_HOST AC_C_CONST AC_C_VOLATILE AC_C_BIGENDIAN AC_SYS_LARGEFILE AC_PROG_INSTALL AC_PROG_LN_S AC_CHECK_TOOL([AR], [ar]) AC_PATH_PROG([RM], [rm], [rm]) AC_PATH_PROG([RMDIR], [rmdir], [rmdir]) AC_CHECK_FUNCS([openat], [], [AC_MSG_ERROR([cannot find openat() function])]) m4_ifndef([PKG_PROG_PKG_CONFIG], [m4_fatal([Could not locate the pkg-config autoconf macros. These are usually located in /usr/share/aclocal/pkg.m4. If your macros are in a different location, try setting the environment variable AL_OPTS="-I/other/macro/dir" before running ./autogen.sh or autoreconf again.])]) PKG_PROG_PKG_CONFIG dnl dnl Calls pkg-config --static dnl AC_DEFUN([PKG_STATIC], [ if AC_RUN_LOG([pkg-config --exists --print-errors "$2"]); then $1=`pkg-config --libs --static "$2"` AC_SUBST([$1]) else AC_MSG_ERROR([pkg-config description of $2, needed for static build, is not available]) fi ]) AC_ARG_ENABLE([backtrace], AS_HELP_STRING([--disable-backtrace], [disable btrfs backtrace]), [], [enable_backtrace=yes] ) AS_IF([test "x$enable_backtrace" = xno], [ AC_DEFINE([BTRFS_DISABLE_BACKTRACE], [1], [disable backtrace stuff in kerncompat.h ]) ]) if test "x$enable_backtrace" = xyes; then AC_CHECK_HEADERS([execinfo.h]) AC_CHECK_FUNCS([backtrace backtrace_symbols_fd], [], AC_MSG_ERROR([standard library does not have backtrace support])) fi AC_ARG_ENABLE([documentation], AS_HELP_STRING([--disable-documentation], [do not build domumentation]), [], [enable_documentation=yes] ) AS_IF([test "x$enable_documentation" = xyes], [DISABLE_DOCUMENTATION=0], [DISABLE_DOCUMENTATION=1]) AC_SUBST([DISABLE_DOCUMENTATION]) dnl detect tools to build documentation if test "x$enable_documentation" = xyes; then AC_PATH_PROG([ASCIIDOC], [asciidoc], [asciidoc]) AC_PATH_PROG([XMLTO], [xmlto], [xmlto]) AC_PATH_PROG([GZIP], [gzip], [gzip]) AC_PATH_PROG([MV], [mv], [mv]) AC_PROG_SED fi AC_ARG_ENABLE([convert], AS_HELP_STRING([--disable-convert], [do not build btrfs-convert]), [], [enable_convert=yes] ) AS_IF([test "x$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$enable_convert" = xyes; then if test "x$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 _LIBS= and _CFLAGS= by pkg-config dnl dnl The default PKG_CHECK_MODULES() action-if-not-found is end the dnl execution with error. The static libs are optional. PKG_CHECK_MODULES(BLKID, [blkid]) PKG_STATIC(BLKID_LIBS_STATIC, [blkid]) PKG_CHECK_MODULES(UUID, [uuid]) PKG_STATIC(UUID_LIBS_STATIC, [uuid]) 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" LZO2_CFLAGS="" LZO2_LIBS_STATIC="-llzo2"],[ AC_MSG_ERROR([cannot find lzo2 library]) ]) AC_SUBST([LZO2_LIBS]) AC_SUBST([LZO2_LIBS_STATIC]) AC_SUBST([LZO2_CFLAGS]) dnl library stuff AC_SUBST([LIBBTRFS_MAJOR]) AC_SUBST([LIBBTRFS_MINOR]) AC_SUBST([LIBBTRFS_PATCHLEVEL]) AC_CONFIG_HEADERS([config.h]) AC_CONFIG_FILES([ Makefile Documentation/Makefile version.h ]) AC_OUTPUT AC_MSG_RESULT([ ${PACKAGE_NAME} ${PACKAGE_VERSION} prefix: ${prefix} exec prefix: ${exec_prefix} bindir: ${bindir} libdir: ${libdir} includedir: ${includedir} compiler: ${CC} cflags: ${CFLAGS} ldflags: ${LDFLAGS} documentation: ${enable_documentation} backtrace support: ${enable_backtrace} btrfs-convert: ${enable_convert} ${convertfs:+($convertfs)} Type 'make' to compile. ])