m4/ax_submodule.m4

   1 AC_DEFUN([AX_SUBMODULE],
   2 [
   3
   4 AC_ARG_WITH($1,
   5         [AS_HELP_STRING([--with-$1=$2],
   6                         [Which $1 to use])])
   7 case "system" in
   8 $2)
   9         AC_ARG_WITH($1_prefix,
  10                     [AS_HELP_STRING([--with-$1-prefix=DIR],
  11                                     [Prefix of $1 installation])])
  12         AC_ARG_WITH($1_exec_prefix,
  13                     [AS_HELP_STRING([--with-$1-exec-prefix=DIR],
  14                                     [Exec prefix of $1 installation])])
  15 esac
  16 case "build" in
  17 $2)
  18         AC_ARG_WITH($1_builddir,
  19                     [AS_HELP_STRING([--with-$1-builddir=DIR],
  20                                     [Location of $1 builddir])])
  21 esac
  22 if test "x$with_$1_prefix" != "x" -a "x$with_$1_exec_prefix" = "x"; then
  23         with_$1_exec_prefix=$with_$1_prefix
  24 fi
  25 if test "x$with_$1_prefix" != "x" -o "x$with_$1_exec_prefix" != "x"; then
  26         if test "x$with_$1" != "x" -a "x$with_$1" != "xsystem"; then
  27                 AC_MSG_ERROR([Setting $with_$1_prefix implies use of system $1])
  28         fi
  29         with_$1="system"
  30 fi
  31 if test "x$with_$1_builddir" != "x"; then
  32         if test "x$with_$1" != "x" -a "x$with_$1" != "xbuild"; then
  33                 AC_MSG_ERROR([Setting $with_$1_builddir implies use of build $1])
  34         fi
  35         with_$1="build"
  36         $1_srcdir=`echo @abs_srcdir@ | $with_$1_builddir/config.status --file=-`
  37         AC_MSG_NOTICE($1 sources in $$1_srcdir)
  38 fi
  39 case "$with_$1" in
  40 $2)
  41         ;;
  42 *)
  43         if test -d $srcdir/.git -a \
  44                 -d $srcdir/$1 -a \
  45                 ! -d $srcdir/$1/.git; then
  46                 AC_MSG_WARN(
  47 [git repo detected, but submodule $1 not initialized])
  48                 AC_MSG_WARN([You may want to run])
  49                 AC_MSG_WARN([   git submodule init])
  50                 AC_MSG_WARN([   git submodule update])
  51                 AC_MSG_WARN([   sh autogen.sh])
  52         fi
  53         if test -f $srcdir/$1/configure -a "$3" != "no"; then
  54                 with_$1="bundled"
  55         else
  56                 with_$1="$3"
  57         fi
  58         ;;
  59 esac
  60 AC_MSG_CHECKING([which $1 to use])
  61 AC_MSG_RESULT($with_$1)
  62
  63 ])