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#!/usr/bin/env python
# Mapnik uses the build tool SCons.
# This python file is run to compile a plugin
# It must be called from the main 'SConstruct' file like:
# SConscript('path/to/this/file.py')
# see docs at: http://www.scons.org/wiki/SConscript()
import os
# Here we pull from the SCons environment exported from the main instance
Import ('plugin_base')
Import ('env')
# Give this plugin a name
# here this happens to be the same as the directory
PLUGIN_NAME = 'hello'
# the below install details are also pulled from the
# main SConstruct file where configuration happens
# clone the environment here
# so that if we modify the env it in this file
# those changes to not pollute other builds later on...
plugin_env = plugin_base.Clone()
# Add the cpp files that need to be compiled
plugin_sources = Split(
"""
%(PLUGIN_NAME)s_datasource.cpp
%(PLUGIN_NAME)s_featureset.cpp
""" % locals()
)
# Add any external libraries this plugin should
# directly link to
libraries = [ '' ] # eg 'libfoo'
libraries.append('boost_system%s' % env['BOOST_APPEND'])
# link libicuuc, but ICU_LIB_NAME is used custom builds of icu can
# have different library names like osx which offers /usr/lib/libicucore.dylib
libraries.append(env['ICU_LIB_NAME'])
# this is valid if we are building an external plugin as shared library
if env['PLUGIN_LINKING'] == 'shared':
# plugins can go anywhere, and be registered in custom locations by Mapnik
# but the standard location is '/usr/local/lib/mapnik/input'
install_dest = env['MAPNIK_INPUT_PLUGINS_DEST']
# only link mapnik if we are build an external shared object
libraries.append('mapnik')
TARGET = plugin_env.SharedLibrary(
# the name of the target to build, eg 'sqlite.input'
'../%s' % PLUGIN_NAME,
# prefix - normally none used
SHLIBPREFIX='',
# extension, mapnik expects '.input'
SHLIBSUFFIX='.input',
# list of source files to compile
source=plugin_sources,
# libraries to link to
LIBS=libraries,
# any custom linkflags, eg. LDFLAGS
# in this case CUSTOM_LDFLAGS comes
# from Mapnik's main SConstruct file
# and can be removed here if you do
# not need it
LINKFLAGS=env.get('CUSTOM_LDFLAGS')
)
# if the plugin links to libmapnik ensure it is built first
Depends(TARGET, env.subst('../../../../src/%s' % env['MAPNIK_LIB_NAME']))
# if 'uninstall' is not passed on the command line
# then we actually create the install targets that
# scons will install if 'install' is passed as an arg
if 'uninstall' not in COMMAND_LINE_TARGETS:
env.Install(install_dest, TARGET)
env.Alias('install', install_dest)
# Return the plugin building options to scons
# This is used when statically linking the plugin with mapnik)
plugin_obj = {
'LIBS': libraries,
'SOURCES': plugin_sources,
}
Return('plugin_obj')
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