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feature/libxml2
core/Common/3dParty/libxml/configure_libxml2.py
Kirill Polyakov bd92a3550f libxml2 has been moved to 3dParty
2026-05-13 16:01:47 +03:00

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#!/usr/bin/env python
import sys
import os
sys.path.append('../../../../build_tools/scripts')
import base
# suppresses status output when set via --quiet/-q; errors are still shown
QUIET = False
def log(msg):
if not QUIET:
print(msg)
return
def log_info(msg):
if not QUIET:
base.print_info(msg)
return
# ---------------------------------------------------------------------------
# Per-target defaults (mirror LIBXML2_WITH_* options from CMakeLists.txt
# and the platform branches inside configure.ac)
# ---------------------------------------------------------------------------
COMMON_FEATURES = {
"WITH_C14N": 0,
"WITH_CATALOG": 0,
"WITH_DEBUG": 0,
"WITH_HTML": 1,
"WITH_HTTP": 0,
"WITH_ICONV": 0,
"WITH_ICU": 0,
"WITH_ISO8859X": 0,
"WITH_MODULES": 0,
"WITH_OUTPUT": 1,
"WITH_PATTERN": 0,
"WITH_PUSH": 1,
"WITH_READER": 1,
"WITH_REGEXPS": 0,
"WITH_RELAXNG": 0,
"WITH_SAX1": 1,
"WITH_SCHEMAS": 0,
"WITH_SCHEMATRON": 0,
"WITH_THREADS": 0,
"WITH_THREAD_ALLOC": 0,
"WITH_VALID": 0,
"WITH_WRITER": 0,
"WITH_XINCLUDE": 0,
"WITH_XPATH": 0,
"WITH_XPTR": 1,
"WITH_ZLIB": 0
}
TARGETS = {
"windows": {
"WITH_WINPATH": 1,
"HAVE_DECL_GETENTROPY": 0,
"HAVE_DECL_GLOB": 0,
"HAVE_DECL_MMAP": 0,
"HAVE_FUNC_ATTRIBUTE_DESTRUCTOR": 0,
"HAVE_DLOPEN": 0,
"HAVE_SHLLOAD": 0,
"HAVE_LIBHISTORY": 0,
"HAVE_LIBREADLINE": 0,
"HAVE_STDINT_H": 1,
"XML_SYSCONFDIR": "/etc",
"MODULE_EXTENSION": ".dll",
"XML_THREAD_LOCAL": "__declspec(thread)"
},
"linux": {
"WITH_WINPATH": 0,
"HAVE_DECL_GETENTROPY": 0,
"HAVE_DECL_GLOB": 1,
"HAVE_DECL_MMAP": 1,
"HAVE_FUNC_ATTRIBUTE_DESTRUCTOR": 1,
"HAVE_DLOPEN": 1,
"HAVE_SHLLOAD": 0,
"HAVE_LIBHISTORY": 0,
"HAVE_LIBREADLINE": 0,
"HAVE_STDINT_H": 1,
"XML_SYSCONFDIR": "/etc",
"MODULE_EXTENSION": ".so",
"XML_THREAD_LOCAL": "__thread"
},
"mac": {
"WITH_WINPATH": 0,
"HAVE_DECL_GETENTROPY": 0,
"HAVE_DECL_GLOB": 1,
"HAVE_DECL_MMAP": 1,
"HAVE_FUNC_ATTRIBUTE_DESTRUCTOR": 1,
"HAVE_DLOPEN": 1,
"HAVE_SHLLOAD": 0,
"HAVE_LIBHISTORY": 0,
"HAVE_LIBREADLINE": 0,
"HAVE_STDINT_H": 1,
"XML_SYSCONFDIR": "/etc",
"MODULE_EXTENSION": ".dylib",
"XML_THREAD_LOCAL": "__thread"
}
}
# ---------------------------------------------------------------------------
# Helpers
# ---------------------------------------------------------------------------
def build_defaults(target):
if target not in TARGETS:
base.print_error("unknown target: " + target)
sys.exit(1)
cfg = {}
for k in COMMON_FEATURES:
cfg[k] = COMMON_FEATURES[k]
for k in TARGETS[target]:
cfg[k] = TARGETS[target][k]
return cfg
def derive(cfg):
parts = cfg["VERSION"].split(".")
major = int(parts[0])
minor = int(parts[1])
micro = int(parts[2])
cfg["LIBXML_MAJOR_VERSION"] = major
cfg["LIBXML_MINOR_VERSION"] = minor
cfg["LIBXML_MICRO_VERSION"] = micro
cfg["LIBXML_VERSION_NUMBER"] = major * 10000 + minor * 100 + micro
if "LIBXML_VERSION_EXTRA" not in cfg:
cfg["LIBXML_VERSION_EXTRA"] = ""
return
def subst_atvars(text, cfg):
for key in cfg:
text = text.replace("@" + key + "@", str(cfg[key]))
# warn about leftover placeholders (helps catch typos in xmlversion.h.in)
i = text.find("@")
while i != -1:
j = text.find("@", i + 1)
if j == -1:
break
token = text[i + 1:j]
is_name = (len(token) > 0)
for ch in token:
if not (ch.isalnum() or ch == "_"):
is_name = False
break
if is_name:
base.print_error("undefined template variable: @" + token + "@")
i = text.find("@", j + 1)
return text
def process_cmakedefine_line(line, cfg):
stripped = line.lstrip()
if not stripped.startswith("#"):
return None
indent = line[:len(line) - len(stripped)]
body = stripped[1:].lstrip() # skip '#' and any whitespace after it
if body.startswith("cmakedefine01"):
rest = body[len("cmakedefine01"):].strip()
if rest == "":
return None
name = rest.split()[0]
value = 1 if int(cfg.get(name, 0)) else 0
return indent + "#define " + name + " " + str(value)
if body.startswith("cmakedefine"):
rest = body[len("cmakedefine"):]
if rest == "" or not rest[0].isspace():
return None
rest = rest.lstrip()
sp = -1
for k in range(len(rest)):
if rest[k].isspace():
sp = k
break
if sp == -1:
name = rest
tail = ""
else:
name = rest[:sp]
tail = rest[sp:]
if cfg.get(name):
return indent + "#define " + name + subst_atvars(tail, cfg)
return indent + "/* #undef " + name + " */"
return None
def process_template(text, cfg, cmake_style):
out_lines = []
for line in text.splitlines():
if cmake_style:
replaced = process_cmakedefine_line(line, cfg)
if replaced is not None:
out_lines.append(replaced)
continue
out_lines.append(subst_atvars(line, cfg))
return "\n".join(out_lines) + "\n"
def configure_file(src, dst, cfg, cmake_style):
if not base.is_file(src):
base.print_error("template not found: " + src)
sys.exit(1)
text = base.readFile(src)
dst_dir = os.path.dirname(base.get_path(dst))
if dst_dir != "":
base.create_dir(dst_dir)
base.writeFile(dst, process_template(text, cfg, cmake_style))
log(" wrote " + dst)
return
# ---------------------------------------------------------------------------
# CLI
# ---------------------------------------------------------------------------
def print_help():
print("Usage: python configure_libxml2.py [options]")
print("")
print("Generates config.h and include/libxml/xmlversion.h from the")
print("libxml2 *.in templates, mirroring the logic of configure.ac /")
print("CMakeLists.txt without invoking autoconf or cmake.")
print("")
print("Paths:")
print(" --source DIR libxml2 source root (default: cwd)")
print(" --config-h PATH explicit path for config.h")
print(" (default: <script-dir>/config.h)")
print(" --xmlversion-h PATH explicit path for xmlversion.h")
print(" (default: <script-dir>/xmlversion.h)")
print("")
print("Build options:")
print(" --target NAME windows | linux | mac (default: host)")
print(" --with-FEATURE 0|1 toggle any LIBXML2_WITH_* feature")
print(" e.g. --with-zlib 1 --with-iconv 1")
print(" --have-NAME 0|1 set any HAVE_* probe value")
print(" e.g. --have-dlopen 1")
print(" --xml-sysconfdir DIR override XML_SYSCONFDIR")
print(" --xml-thread-local S override TLS specifier")
print(" --module-extension S override dynamic-module suffix")
print(" --version-extra S set LIBXML_VERSION_EXTRA")
print("")
print(" -q, --quiet suppress status output (errors still shown)")
print(" -h, --help show this message")
return
def parse_args(argv):
args = {}
i = 1
while i < len(argv):
arg = argv[i]
if arg == "-h" or arg == "--help":
args["help"] = "1"
i += 1
continue
if arg == "-q" or arg == "--quiet":
args["quiet"] = "1"
i += 1
continue
if not arg.startswith("--"):
base.print_error("unexpected positional argument: " + arg)
sys.exit(1)
key = arg[2:]
if i + 1 >= len(argv):
base.print_error("missing value for --" + key)
sys.exit(1)
args[key] = argv[i + 1]
i += 2
return args
def apply_overrides(cfg, args):
reserved = ("source", "target", "config-h", "xmlversion-h",
"version-extra", "help", "quiet")
for key in args:
if key in reserved:
continue
cfg_key = key.upper().replace("-", "_")
value = args[key]
if cfg_key not in cfg:
base.print_error("unknown option: --" + key + " "
"(maps to " + cfg_key + ")")
sys.exit(1)
# keep type stable: numeric keys stay numeric
if isinstance(cfg[cfg_key], int):
try:
cfg[cfg_key] = int(value)
except ValueError:
base.print_error("--" + key + " expects 0 or 1, got: " + value)
sys.exit(1)
else:
cfg[cfg_key] = value
return
def main(argv):
global QUIET
args = parse_args(argv)
if "help" in args:
print_help()
return 0
QUIET = ("quiet" in args)
source = args.get("source", os.getcwd())
script_dir = os.path.dirname(os.path.realpath(__file__))
target = args.get("target", base.host_platform())
cfg = build_defaults(target)
version_file = source + "/VERSION"
if not base.is_file(version_file):
base.print_error("VERSION file not found in: " + source)
return 1
cfg["VERSION"] = base.readFile(version_file).strip()
apply_overrides(cfg, args)
if "version-extra" in args:
cfg["LIBXML_VERSION_EXTRA"] = args["version-extra"]
derive(cfg)
config_h_out = args.get("config-h", script_dir + "/config.h")
xmlversion_h_out = args.get("xmlversion-h", script_dir + "/xmlversion.h")
log_info("libxml2 " + cfg["VERSION"] + " target=" + target)
log(" source = " + source)
configure_file(source + "/config.h.cmake.in",
config_h_out, cfg, True)
configure_file(source + "/include/libxml/xmlversion.h.in",
xmlversion_h_out, cfg, False)
return 0
if __name__ == "__main__":
sys.exit(main(sys.argv))
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