configure.ac

   1 AC_INIT
   2
   3 AC_CANONICAL_SYSTEM
   4 AM_INIT_AUTOMAKE(spl, 0.3.0)
   5 AC_CONFIG_HEADERS([config.h])
   6
   7 AC_PROG_INSTALL
   8 AC_PROG_CC
   9 AC_PROG_LIBTOOL
  10
  11 kernelsrc=
  12 kernelbuild=
  13
  14 AC_DEFUN([SPL_AC_KERNEL], [
  15         ver=`uname -r`
  16
  17         AC_ARG_WITH([linux],
  18                 AS_HELP_STRING([--with-linux=PATH],
  19                 [Path to kernel source]),
  20                 [kernelsrc="$withval"; kernelbuild="$withval"])
  21
  22         AC_ARG_WITH([linux-obj],
  23                 AS_HELP_STRING([--with-linux-obj=PATH],
  24                 [Path to kernel build objects]),
  25                 [kernelbuild="$withval"])
  26
  27         AC_MSG_CHECKING([kernel source directory])
  28         if test -z "$kernelsrc"; then
  29                 kernelbuild=
  30                 sourcelink=/lib/modules/${ver}/source
  31                 buildlink=/lib/modules/${ver}/build
  32
  33                 if test -e $sourcelink; then
  34                         kernelsrc=`(cd $sourcelink; /bin/pwd)`
  35                 fi
  36                 if test -e $buildlink; then
  37                         kernelbuild=`(cd $buildlink; /bin/pwd)`
  38                 fi
  39                 if test -z "$kernelsrc"; then
  40                         kernelsrc=$kernelbuild
  41                 fi
  42                 if test -z "$kernelsrc" -o -z "$kernelbuild"; then
  43                         AC_MSG_RESULT([Not found])
  44                         AC_MSG_ERROR([
  45                         *** Please specify the location of the kernel source
  46                         *** with the '--with-kernel=PATH' option])
  47                 fi
  48         fi
  49
  50         AC_MSG_RESULT([$kernelsrc])
  51         AC_MSG_CHECKING([kernel build directory])
  52         AC_MSG_RESULT([$kernelbuild])
  53
  54         AC_MSG_CHECKING([kernel source version])
  55         if test -r $kernelbuild/include/linux/version.h &&
  56                 fgrep -q UTS_RELEASE $kernelbuild/include/linux/version.h; then
  57
  58                 kernsrcver=`(echo "#include <linux/version.h>";
  59                              echo "kernsrcver=UTS_RELEASE") |
  60                              cpp -I $kernelbuild/include |
  61                              grep "^kernsrcver=" | cut -d \" -f 2`
  62
  63         elif test -r $kernelbuild/include/linux/utsrelease.h &&
  64                 fgrep -q UTS_RELEASE $kernelbuild/include/linux/utsrelease.h; then
  65
  66                 kernsrcver=`(echo "#include <linux/utsrelease.h>";
  67                              echo "kernsrcver=UTS_RELEASE") |
  68                              cpp -I $kernelbuild/include |
  69                              grep "^kernsrcver=" | cut -d \" -f 2`
  70         fi
  71
  72         if test -z "$kernsrcver"; then
  73                 AC_MSG_RESULT([Not found])
  74                 AC_MSG_ERROR([
  75                 *** Cannot determine the version of the linux kernel source.
  76                 *** Please prepare the kernel before running this script])
  77         fi
  78
  79         AC_MSG_RESULT([$kernsrcver])
  80         kmoduledir=${INSTALL_MOD_PATH}/lib/modules/$kernsrcver
  81         AC_SUBST(kernelsrc)
  82         AC_SUBST(kmoduledir)
  83 ])
  84
  85 AC_DEFUN([SPL_AC_DEBUG], [
  86         AC_MSG_CHECKING([whether debugging is enabled])
  87         AC_ARG_ENABLE( [debug],
  88                 AS_HELP_STRING([--enable-debug],
  89                 [Enable generic debug support (default off)]),
  90                 [ case "$enableval" in
  91                         yes) spl_ac_debug=yes ;;
  92                         no) spl_ac_debug=no ;;
  93                         *) AC_MSG_RESULT([Error!])
  94                         AC_MSG_ERROR([Bad value "$enableval" for --enable-debug]) ;;
  95                 esac ]
  96         )
  97         if test "$spl_ac_debug" = yes; then
  98                 KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG"
  99         else
 100                 KERNELCPPFLAGS="${KERNELCPPFLAGS} -DNDEBUG"
 101                 AC_DEFINE([NDEBUG], [1],
 102                 [Define to 1 to disable debug tracing])
 103         fi
 104         AC_MSG_RESULT([${spl_ac_debug=no}])
 105 ])
 106
 107 AC_DEFUN([SPL_AC_DEBUG_KMEM], [
 108         AC_MSG_CHECKING([whether kmem debugging is enabled])
 109         AC_ARG_ENABLE( [debug-kmem],
 110                 AS_HELP_STRING([--enable-debug-kmem],
 111                 [Enable kmem debug support (default off)]),
 112                 [ case "$enableval" in
 113                         yes) spl_ac_debug=yes ;;
 114                         no) spl_ac_debug=no ;;
 115                         *) AC_MSG_RESULT([Error!])
 116                         AC_MSG_ERROR([Bad value "$enableval" for --enable-debug-kmem]) ;;
 117                 esac ]
 118         )
 119         if test "$spl_ac_debug" = yes; then
 120                 KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_KMEM"
 121                 AC_DEFINE([DEBUG_KMEM], [1],
 122                 [Define to 1 to enable kmem debugging])
 123         fi
 124         AC_MSG_RESULT([${spl_ac_debug=no}])
 125 ])
 126
 127 AC_DEFUN([SPL_AC_DEBUG_MUTEX], [
 128         AC_MSG_CHECKING([whether mutex debugging is enabled])
 129         AC_ARG_ENABLE( [debug-mutex],
 130                 AS_HELP_STRING([--enable-debug-mutex],
 131                 [Enable mutex debug support (default off)]),
 132                 [ case "$enableval" in
 133                         yes) spl_ac_debug=yes ;;
 134                         no) spl_ac_debug=no ;;
 135                         *) AC_MSG_RESULT([Error!])
 136                         AC_MSG_ERROR([Bad value "$enableval" for --enable-debug-mutex]) ;;
 137                 esac ]
 138         )
 139         if test "$spl_ac_debug" = yes; then
 140                 KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_MUTEX"
 141                 AC_DEFINE([DEBUG_MUTEX], [1],
 142                 [Define to 1 to enable mutex debugging])
 143         fi
 144         AC_MSG_RESULT([${spl_ac_debug=no}])
 145 ])
 146
 147 AC_DEFUN([SPL_AC_DEBUG_KSTAT], [
 148         AC_MSG_CHECKING([whether kstat debugging is enabled])
 149         AC_ARG_ENABLE( [debug-kstat],
 150                 AS_HELP_STRING([--enable-debug-kstat],
 151                 [Enable kstat debug support (default off)]),
 152                 [ case "$enableval" in
 153                         yes) spl_ac_debug=yes ;;
 154                         no) spl_ac_debug=no ;;
 155                         *) AC_MSG_RESULT([Error!])
 156                         AC_MSG_ERROR([Bad value "$enableval" for --enable-debug-kstat]) ;;
 157                 esac ]
 158         )
 159         if test "$spl_ac_debug" = yes; then
 160                 KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_KSTAT"
 161                 AC_DEFINE([DEBUG_KSTAT], [1],
 162                 [Define to 1 to enable kstat debugging])
 163         fi
 164         AC_MSG_RESULT([${spl_ac_debug=no}])
 165 ])
 166
 167 AC_DEFUN([SPL_AC_DEBUG_CALLB], [
 168         AC_MSG_CHECKING([whether callb debugging is enabled])
 169         AC_ARG_ENABLE( [debug-callb],
 170                 AS_HELP_STRING([--enable-debug-callb],
 171                 [Enable callb debug support (default off)]),
 172                 [ case "$enableval" in
 173                         yes) spl_ac_debug=yes ;;
 174                         no) spl_ac_debug=no ;;
 175                         *) AC_MSG_RESULT([Error!])
 176                         AC_MSG_ERROR([Bad value "$enableval" for --enable-debug-callb]) ;;
 177                 esac ]
 178         )
 179         if test "$spl_ac_debug" = yes; then
 180                 KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_CALLB"
 181                 AC_DEFINE([DEBUG_CALLB], [1],
 182                 [Define to 1 to enable callb debugging])
 183         fi
 184         AC_MSG_RESULT([${spl_ac_debug=no}])
 185 ])
 186
 187 SPL_AC_KERNEL
 188 SPL_AC_DEBUG
 189 SPL_AC_DEBUG_KMEM
 190 SPL_AC_DEBUG_MUTEX
 191 SPL_AC_DEBUG_KSTAT
 192 SPL_AC_DEBUG_CALLB
 193
 194 TOPDIR=`/bin/pwd`
 195
 196 # Add "V=1" to KERNELMAKE_PARAMS to enable verbose module build
 197 KERNELMAKE_PARAMS=
 198 KERNELCPPFLAGS="${KERNELCPPFLAGS} -I$TOPDIR -I$TOPDIR/include"
 199
 200 if test "$kernelbuild" != "$kernelsrc"; then
 201         KERNELMAKE_PARAMS="$KERNELMAKE_PARAMS O=$kernelbuild"
 202 fi
 203
 204 AC_SUBST(KERNELMAKE_PARAMS)
 205 AC_SUBST(KERNELCPPFLAGS)
 206 AC_SUBST(KERNELCFLAGS)
 207
 208 AC_CONFIG_FILES([ Makefile
 209                   lib/Makefile
 210                   cmd/Makefile
 211                   modules/Makefile
 212                   modules/spl/Makefile
 213                   modules/splat/Makefile
 214                   include/Makefile
 215                   include/sys/Makefile
 216                   scripts/Makefile
 217                   scripts/spl.spec
 218                ])
 219
 220 AC_OUTPUT