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SConstruct - use pkg-config proj --variable=datadir ro determine PROJ_LIB directory

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Artem Pavlenko 2024-06-10 15:35:30 +01:00
parent b8166f81a6
commit 9610c4e2ad
1 changed files with 7 additions and 44 deletions
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51
SConstruct
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@ -1,6 +1,6 @@
# This file is part of Mapnik (c++ mapping toolkit) # This file is part of Mapnik (c++ mapping toolkit)
# #
# Copyright (C) 2021 Artem Pavlenko # Copyright (C) 2024 Artem Pavlenko
# #
# Mapnik is free software; you can redistribute it and/or # Mapnik is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public # modify it under the terms of the GNU Lesser General Public
@ -22,7 +22,7 @@ import re
import platform import platform
from glob import glob from glob import glob
from copy import copy from copy import copy
from subprocess import Popen, PIPE from subprocess import run, Popen, PIPE
from SCons.SConf import SetCacheMode from SCons.SConf import SetCacheMode
import pickle import pickle
@ -949,54 +949,17 @@ int main()
return ret return ret
def CheckProjData(context, silent=False): def CheckProjData(context, silent=False):
if not silent: if not silent:
context.Message('Checking for PROJ_LIB directory...') context.Message('Checking for PROJ_LIB directory...')
ret, out = context.TryRun(""" result = run(['pkg-config', 'proj', '--variable=datadir'], stdout=PIPE)
value = result.stdout.decode('utf-8').strip()
#include <proj.h>
#include <iostream>
#include <sstream>
#include <vector>
#include <string>
#include <fstream>
std::vector<std::string> split_searchpath(std::string const& paths)
{
std::vector<std::string> output;
std::stringstream ss(paths);
std::string path;
for( std::string path;std::getline(ss, path, ':');)
{
output.push_back(path);
}
return output;
}
int main()
{
PJ_INFO info = proj_info();
std::string result = info.searchpath;
for (auto path : split_searchpath(result))
{
std::ifstream file(path + "/proj.db");
if (file)
{
std::cout << path;
return 0;
}
}
return -1;
}
""", '.cpp')
value = out.strip()
if silent: if silent:
context.did_show_result=1 context.did_show_result=1
if ret: if os.path.exists(value):
context.Result('proj_info.searchpath returned %s' % value) context.Result('`pkg-config proj --variable=datadir` returned:\n%s ' % value)
else: else:
value = None
context.Result('Failed to detect (mapnik-config will have null value)') context.Result('Failed to detect (mapnik-config will have null value)')
return value return value