Dogcows Code - chaz/openbox/blob - m4/swig.m4

   1 # SWIG_PROG([required-version])
   2 #
   3 # Checks for the SWIG program.  If found you can (and should) call SWIG via $(SWIG).
   4 # You can use the optional first argument to check if the version of the available SWIG
   5 # is greater or equal to the value of the argument.  It should have the format:
   6 # N[.N[.N]] (N is a number between 0 and 999.  Only the first N is mandatory.)
   7 AC_DEFUN([SWIG_PROG],[
   8         AC_REQUIRE([AC_PROG_MAKE_SET])
   9         AC_CHECK_PROG(SWIG,swig,[`which swig`])
  10         if test -z "$SWIG" ; then
  11                 AC_MSG_WARN([cannot find 'swig' program])
  12                 SWIG=false
  13         elif test -n "$1" ; then
  14                 AC_MSG_CHECKING([for SWIG version])
  15                 swig_version=`$SWIG -version 2>&1 | \
  16                         awk '/^SWIG Version [[0-9]+\.[0-9]+\.[0-9]]+.*$/ { split($[3],a,"[[^.0-9]]"); print a[[1]] }'`
  17                 AC_MSG_RESULT([$swig_version])
  18                 if test -n "$swig_version" ; then
  19                         swig_version=`echo $swig_version | \
  20                                 awk '{ split($[1],a,"\."); print [a[1]*1000000+a[2]*1000+a[3]] }' 2>/dev/null`
  21                         swig_required_version=`echo $1 | \
  22                                 awk '{ split($[1],a,"\."); print [a[1]*1000000+a[2]*1000+a[3]] }' 2>/dev/null`
  23                         if test $swig_required_version -gt $swig_version ; then
  24                                 AC_MSG_WARN([SWIG version $1 required])
  25                         fi
  26                 else
  27                         AC_MSG_WARN([cannot determine SWIG version])
  28                 fi
  29         fi
  30 ])
  31
  32 # SWIG_ENABLE_CXX()
  33 #
  34 # Enable swig C++ support.  This effects all invocations of $(SWIG).
  35 AC_DEFUN([SWIG_ENABLE_CXX],[
  36         AC_REQUIRE([SWIG_PROG])
  37         AC_REQUIRE([AC_PROG_CXX])
  38         if test "$SWIG" != "false" ; then
  39                 SWIG="$SWIG -c++"
  40         fi
  41 ])
  42
  43 # SWIG_MULTI_MODULE_SUPPORT()
  44 #
  45 # Enable support for multiple modules.  This effects all invocations of $(SWIG).
  46 # You have to link all generated modules against the appropriate SWIG library.
  47 # If you want to build Python modules for example, use the SWIG_PYTHON() macro
  48 # and link the modules against $(SWIG_PYTHON_LIB).  The $(SWIG_LDFLAGS) variable
  49 # can be used to help the linker to find this library.
  50 AC_DEFUN([SWIG_MULTI_MODULE_SUPPORT],[
  51         AC_REQUIRE([SWIG_PROG])
  52         if test "$SWIG" != "false" ; then
  53                 SWIG="$SWIG -c"
  54
  55                 # Check for SWIG library path
  56                 AC_MSG_CHECKING([for SWIG library path])
  57                 swig_path=${SWIG%/bin*}/lib
  58                 swig_path=`find $swig_path -type f -name libswig*.a -o -name libswig*.so -print`
  59                 for i in $swig_path ; do
  60                         swig_path=${i%/libswig*}
  61                         break
  62                 done
  63                 AC_MSG_RESULT([$swig_path])
  64                 if test -n "$swig_path" ; then
  65                         AC_SUBST(SWIG_LDFLAGS,[-L$swig_path])
  66                 else
  67                         AC_MSG_WARN([cannot find SWIG library path])
  68                 fi
  69         fi
  70 ])
  71
  72 # SWIG_PYTHON([use-shadow-classes])
  73 #
  74 # Checks for Python and provides the $(SWIG_PYTHON_CFLAGS), $(SWIG_PYTHON_LIB) and
  75 # $(SWIG_PYTHON_OPT) output variables.  $(SWIG_PYTHON_OPT) contains all necessary swig
  76 # options to generate code for Python.  Shadow classes are enabled unless the
  77 # value of the optional first argument is exactly 'no'.  If you need multi module
  78 # support use $(SWIG_PYTHON_LIB) (provided by the SWIG_MULTI_MODULE_SUPPORT() macro)
  79 # to link against the appropriate library.  It contains the SWIG Python runtime library
  80 # that is needed by the type check system for example.
  81 AC_DEFUN([SWIG_PYTHON],[
  82         AC_REQUIRE([SWIG_PROG])
  83         AC_REQUIRE([PYTHON_DEVEL])
  84         if test "$SWIG" != "false" ; then
  85                 AC_SUBST(SWIG_PYTHON_LIB,[`$SWIG -python -ldflags`])
  86                 test ! "x$1" = "xno" && swig_shadow=" -shadow" || swig_shadow=""
  87                 AC_SUBST(SWIG_PYTHON_OPT,[-python$swig_shadow])
  88         fi
  89         AC_SUBST(SWIG_PYTHON_CFLAGS,[$PYTHON_CFLAGS])
  90 ])