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# -*- mode: python; -*-
import re
import textwrap

Import("env windows darwin solaris linux freebsd")

env = env.Clone()
env.InjectThirdPartyIncludePaths(libraries=['snappy', 'zlib'])

env.Append(CPPPATH=[
        "src/include",
    ])

if windows:
    env.Append(CPPPATH=["build_win"])
elif darwin:
    env.Append(CPPPATH=["build_darwin"])
elif solaris:
    env.Append(CPPPATH=["build_solaris"])
elif freebsd:
    env.Append(CPPPATH=["build_freebsd"])
elif linux:
    env.Append(CPPPATH=["build_linux"])
    env.Append(CPPDEFINES=["_GNU_SOURCE"])
else:
    print("Wiredtiger is not supported on this platform. " +
        "Please generate an approriate wiredtiger_config.h")
    Exit(1)

useZlib = True
useSnappy = True

version_file = 'build_posix/aclocal/version-set.m4'

VERSION_MAJOR = None
VERSION_MINOR = None
VERSION_PATCH = None
VERSION_STRING = None

# Read the version information from the version-set.m4 file
for l in open(File(version_file).srcnode().abspath):
    if re.match(r'^VERSION_[A-Z]+', l):
        exec(l)

if (VERSION_MAJOR == None or
    VERSION_MINOR == None or
    VERSION_PATCH == None or
    VERSION_STRING == None):
    print "Failed to find version variables in " + version_file
    Exit(1)

wiredtiger_includes = """
        #include <sys/types.h>
        #ifndef _WIN32
        #include <inttypes.h>
        #endif
        #include <stdarg.h>
        #include <stdint.h>
        #include <stdio.h>
    """
wiredtiger_includes = textwrap.dedent(wiredtiger_includes)
replacements = {
    '@VERSION_MAJOR@' : VERSION_MAJOR,
    '@VERSION_MINOR@' : VERSION_MINOR,
    '@VERSION_PATCH@' : VERSION_PATCH,
    '@VERSION_STRING@' : VERSION_STRING,
    '@uintmax_t_decl@': "",
    '@uintptr_t_decl@': "",
    '@off_t_decl@' : 'typedef int64_t wt_off_t;' if windows else "typedef off_t wt_off_t;",
    '@wiredtiger_includes_decl@': wiredtiger_includes
}

env.Substfile(
    target='wiredtiger.h',
    source=[
        'src/include/wiredtiger.in',
    ],
    SUBST_DICT=replacements)

#
# WiredTiger library
#
filelistfile = "dist/filelist.win" if windows else 'dist/filelist'

wtsources = []

with open(File(filelistfile).srcnode().abspath) as filelist:
    wtsources = [line.strip()
                 for line in filelist
                 if not line.startswith("#") and len(line.strip()) >= 1]

if useZlib:
    env.Append(CPPDEFINES=['HAVE_BUILTIN_EXTENSION_ZLIB'])
    wtsources.append("ext/compressors/zlib/zlib_compress.c")

if useSnappy:
    env.Append(CPPDEFINES=['HAVE_BUILTIN_EXTENSION_SNAPPY'])
    wtsources.append("ext/compressors/snappy/snappy_compress.c")

wtlib = env.Library(
    target="wiredtiger",
    source=wtsources)

env.Depends(wtlib, [filelistfile, version_file])