configure.ac

   1 AC_INIT([btrfs-progs],
   2         m4_esyscmd([./version.sh --configure]),
   3         [linux-btrfs@vger.kernel.org],,
   4         [http://btrfs.wiki.kernel.org])
   5
   6
   7 AC_PREREQ([2.60])
   8
   9 AC_CONFIG_AUX_DIR([config])
  10 dnl AC_USE_SYSTEM_EXTENSIONS must be called before any macros that run
  11 dnl the compiler (like AC_PROG_LIBTOOL) to avoid autoconf errors.
  12 AC_USE_SYSTEM_EXTENSIONS
  13
  14 AC_CONFIG_SRCDIR([btrfs.c])
  15 AC_PREFIX_DEFAULT([/usr])
  16
  17 AC_PROG_CC
  18 AC_CANONICAL_HOST
  19 AC_C_CONST
  20 AC_C_VOLATILE
  21 AC_C_BIGENDIAN
  22
  23 AC_SYS_LARGEFILE
  24
  25 AC_PROG_INSTALL
  26
  27 AC_CHECK_FUNCS([openat], [],
  28         [AC_MSG_ERROR([cannot find openat() function])])
  29
  30 m4_ifndef([PKG_PROG_PKG_CONFIG],
  31   [m4_fatal([Could not locate the pkg-config autoconf
  32     macros. These are usually located in /usr/share/aclocal/pkg.m4.
  33     If your macros are in a different location, try setting the
  34     environment variable AL_OPTS="-I/other/macro/dir" before running
  35     ./autogen.sh or autoreconf again.])])
  36 PKG_PROG_PKG_CONFIG
  37
  38
  39 dnl
  40 dnl Calls pkg-config --static
  41 dnl
  42 AC_DEFUN([PKG_STATIC], [
  43   if AC_RUN_LOG([pkg-config --exists --print-errors "$2"]); then
  44     $1=`pkg-config --libs --static "$2"`
  45     AC_SUBST([$1])
  46   else
  47     AC_MSG_ERROR([pkg-config description of $2, needed for static build, is not available])
  48   fi
  49 ])
  50
  51 dnl Define <NAME>_LIBS= and <NAME>_CFLAGS= by pkg-config
  52 dnl
  53 dnl The default PKG_CHECK_MODULES() action-if-not-found is end the
  54 dnl execution with error. The static libs are optional.
  55
  56 PKG_CHECK_MODULES(BLKID, [blkid])
  57 PKG_STATIC(BLKID_LIBS_STATIC, [blkid])
  58
  59 PKG_CHECK_MODULES(UUID, [uuid])
  60 PKG_STATIC(UUID_LIBS_STATIC, [uuid])
  61
  62 PKG_CHECK_MODULES(ZLIB, [zlib])
  63 PKG_STATIC(ZLIB_LIBS_STATIC, [zlib])
  64
  65 dnl lzo library does not provide pkg-config, let use classic way
  66 AC_CHECK_LIB([lzo2], [lzo_version], [
  67         LZO2_LIBS="-llzo2"
  68         LZO2_CFLAGS=""
  69         LZO2_LIBS_STATIC="-llzo2"],[
  70         AC_MSG_ERROR([cannot find lzo2 library])
  71 ])
  72 AC_SUBST([LZO2_LIBS])
  73 AC_SUBST([LZO2_LIBS_STATIC])
  74 AC_SUBST([LZO2_CFLAGS])
  75
  76
  77
  78 AC_CONFIG_HEADERS([config.h])
  79
  80 AC_CONFIG_FILES([
  81 Makefile
  82 ])
  83
  84 AC_OUTPUT
  85
  86 AC_MSG_RESULT([
  87         ${PACKAGE_NAME} ${PACKAGE_VERSION}
  88
  89         prefix:            ${prefix}
  90         exec prefix:       ${exec_prefix}
  91
  92         bindir:            ${bindir}
  93         libdir:            ${libdir}
  94         includedir:        ${includedir}
  95
  96         compiler:          ${CC}
  97         cflags:            ${CFLAGS}
  98         ldflags:           ${LDFLAGS}
  99
 100         Type 'make' to compile.
 101 ])
 102