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# Contributed by Sebastian Huber
# Licence BSD
#
# Updated by Sylvestre Ledru <sylvestre.ledru@inria.fr> for Scilab
# Changes :
# * SWIG => SWIG_BIN
# * Change of the error message
# * Option for Java added
# * Result of option are stored in a specific variable
# SWIG_PROG([required-version = N[.N[.N]]])
#
# Checks for the SWIG program. If found you can (and should) call
# SWIG via $(SWIG). You can use the optional first argument to check
# if the version of the available SWIG is greater than or equal to the
# value of the argument. It should have the format: N[.N[.N]] (N is a
# number between 0 and 999. Only the first N is mandatory.)
AC_DEFUN([SWIG_PROG],[
SWIG_BIN="$with_build_swig"
if test -x "$SWIG_BIN"; then
AC_MSG_RESULT([$SWIG_BIN])
else
AC_PATH_PROG([SWIG_BIN],[swig])
fi
if test -z "$SWIG_BIN" ; then
AC_MSG_ERROR([Cannot find swig. Please install it (package swig under Debian) or remove the option --with-build-swig])
elif test -n "$1" ; then
AC_MSG_CHECKING([for SWIG version])
[swig_version=`$SWIG_BIN -version 2>&1 | grep 'SWIG Version' | sed 's/.*\([0-9]\+\.[0-9]\+\.[0-9]\+\).*/\1/g'`]
AC_MSG_RESULT([$swig_version])
if test -n "$swig_version" ; then
# Calculate the required version number
[swig_tmp=`echo $1 | sed 's/[^0-9]\+/ /g'`]
[swig_required_version=`echo $swig_tmp | awk '{print 1000000 * $1 + 1000 * $2 + $3}'`]
# Calculate the available version number
[swig_tmp=`echo $swig_version | sed 's/[^0-9]\+/ /g'`]
[swig_tmp=`echo $swig_tmp | awk '{print 1000000 * $1 + 1000 * $2 + $3}'`]
if test $swig_required_version -gt $swig_tmp ; then
AC_MSG_WARN([SWIG version $1 is required, you have $swig_version])
fi
else
AC_MSG_WARN([cannot determine SWIG version])
fi
SWIG_RUNTIME_LIBS_DIR="${SWIG%/bin*}/lib"
AC_MSG_NOTICE([SWIG runtime library directory is '$SWIG_RUNTIME_LIBS_DIR'])
fi
AC_SUBST([SWIG_RUNTIME_LIBS_DIR])
])
# SWIG_ENABLE_CXX()
#
# Enable SWIG C++ support. This effects all invocations of $(SWIG).
AC_DEFUN([SWIG_ENABLE_CXX],[
AC_REQUIRE([SWIG_PROG])
AC_REQUIRE([AC_PROG_CXX])
SWIG_CXX=" -c++"
])
# SWIG_ENABLE_JAVA()
#
# Enable SWIG Java support. This effects all invocations of $(SWIG).
AC_DEFUN([SWIG_ENABLE_JAVA],[
AC_REQUIRE([SWIG_PROG])
SWIG_JAVA=" -java"
])
# SWIG_ENABLE_SCILAB()
#
# Enable SWIG Scilab support. This effects all invocations of $(SWIG).
AC_DEFUN([SWIG_ENABLE_SCILAB],[
AC_REQUIRE([SWIG_PROG])
SWIG_SCILAB=" -scilab -nobuilder"
])
# SWIG_MULTI_MODULE_SUPPORT()
#
# Enable support for multiple modules. This effects all invocations
# of $(SWIG). You have to link all generated modules against the
# appropriate SWIG runtime library. If you want to build Python
# modules for example, use the SWIG_PYTHON() macro and link the
# modules against $(SWIG_PYTHON_LIBS).
AC_DEFUN([SWIG_MULTI_MODULE_SUPPORT],[
AC_REQUIRE([SWIG_PROG])
SWIG="$SWIG_BIN -c"
])
# SWIG_PYTHON([use-shadow-classes = {no, yes}])
#
# Checks for Python and provides the $(SWIG_PYTHON_CPPFLAGS),
# $(SWIG_PYTHON_LIBS) and $(SWIG_PYTHON_OPT) output variables.
# $(SWIG_PYTHON_OPT) contains all necessary SWIG options to generate
# code for Python. Shadow classes are enabled unless the value of the
# optional first argument is exactly 'no'. If you need multi module
# support (provided by the SWIG_MULTI_MODULE_SUPPORT() macro) use
# $(SWIG_PYTHON_LIBS) to link against the appropriate library. It
# contains the SWIG Python runtime library that is needed by the type
# check system for example.
AC_DEFUN([SWIG_PYTHON],[
AC_REQUIRE([SWIG_PROG])
AC_REQUIRE([PYTHON_DEVEL])
test "x$1" != "xno" || swig_shadow=" -noproxy"
AC_SUBST([SWIG_PYTHON_OPT],[-python$swig_shadow])
AC_SUBST([SWIG_PYTHON_CPPFLAGS],[$PYTHON_CPPFLAGS])
AC_SUBST([SWIG_PYTHON_LIBS],["$SWIG_RUNTIME_LIBS_DIR -lswigpy"])
])
# PYTHON_DEVEL()
#
# Checks for Python and tries to get the include path to 'Python.h'.
# It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LDFLAGS) output variable.
AC_DEFUN([PYTHON_DEVEL],[
AC_REQUIRE([AM_PATH_PYTHON])
# Check for Python include path
AC_MSG_CHECKING([for Python include path])
python_path=${PYTHON%/bin*}
for i in "$python_path/include/python$PYTHON_VERSION/" "$python_path/include/python/" "$python_path/" ; do
python_path=`find $i -type f -name Python.h -print`
if test -n "$python_path" ; then
break
fi
done
for i in $python_path ; do
python_path=${python_path%/Python.h}
break
done
AC_MSG_RESULT([$python_path])
if test -z "$python_path" ; then
AC_MSG_ERROR([cannot find Python include path])
fi
AC_SUBST([PYTHON_CPPFLAGS],[-I$python_path])
# Check for Python library path
AC_MSG_CHECKING([for Python library path])
python_path=${PYTHON%/bin*}
for i in "$python_path/lib/python$PYTHON_VERSION/config/" "$python_path/lib/python$PYTHON_VERSION/" "$python_path/lib/python/config/" "$python_path/lib/python/" "$python_path/" ; do
python_path=`find $i -type f -name libpython$PYTHON_VERSION.* -print`
if test -n "$python_path" ; then
break
fi
done
for i in $python_path ; do
python_path=${python_path%/libpython*}
break
done
AC_MSG_RESULT([$python_path])
if test -z "$python_path" ; then
AC_MSG_ERROR([cannot find Python library path])
fi
AC_SUBST([PYTHON_LDFLAGS],["-L$python_path -lpython$PYTHON_VERSION"])
])
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