mirror of https://github.com/python/cpython
bpo-45800: Move pyexpat build setup into configure (GH-29547)
Settings for :mod:`pyexpat` C extension are now detected by ``configure``. The bundled ``expat`` library is built in ``Makefile``. Signed-off-by: Christian Heimes <christian@python.org>
This commit is contained in:
Christian Heimes
GitHub
parent
25835c518a
commit
464e6616be
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@ -537,6 +537,33 @@ LIBMPDEC_HEADERS= \
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LIBMPDEC_A= Modules/_decimal/libmpdec/libmpdec.a
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##########################################################################
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# pyexpat's expat library
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LIBEXPAT_OBJS= \
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Modules/expat/xmlparse.o \
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Modules/expat/xmlrole.o \
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Modules/expat/xmltok.o
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LIBEXPAT_HEADERS= \
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Modules/expat/ascii.h \
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Modules/expat/asciitab.h \
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Modules/expat/expat.h \
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Modules/expat/expat_config.h \
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Modules/expat/expat_external.h \
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Modules/expat/iasciitab.h \
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Modules/expat/internal.h \
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Modules/expat/latin1tab.h \
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Modules/expat/nametab.h \
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Modules/expat/pyexpatns.h \
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Modules/expat/siphash.h \
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Modules/expat/utf8tab.h \
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Modules/expat/xmlrole.h \
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Modules/expat/xmltok.h \
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Modules/expat/xmltok_impl.h
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LIBEXPAT_A= Modules/expat/libexpat.a
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#########################################################################
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# Rules
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@ -688,7 +715,7 @@ $(srcdir)/Modules/_blake2/blake2s_impl.c: $(srcdir)/Modules/_blake2/blake2b_impl
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# -s, --silent or --quiet is always the first char.
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# Under BSD make, MAKEFLAGS might be " -s -v x=y".
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# Ignore macros passed by GNU make, passed after --
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sharedmods: $(BUILDPYTHON) pybuilddir.txt @LIBMPDEC_INTERNAL@
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sharedmods: $(BUILDPYTHON) pybuilddir.txt @LIBMPDEC_INTERNAL@ @LIBEXPAT_INTERNAL@
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@case "`echo X $$MAKEFLAGS | sed 's/^X //;s/ -- .*//'`" in \
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*\ -s*|s*) quiet="-q";; \
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*) quiet="";; \
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@ -828,6 +855,27 @@ $(LIBMPDEC_A): $(LIBMPDEC_OBJS)
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-rm -f $@
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$(AR) $(ARFLAGS) $@ $(LIBMPDEC_OBJS)
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##########################################################################
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# Build static libexpat.a
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LIBEXPAT_CFLAGS=$(PY_STDMODULE_CFLAGS) $(CCSHARED) @LIBEXPAT_CFLAGS@
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# for setup.py
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EXPAT_CFLAGS=@LIBEXPAT_CFLAGS@
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EXPAT_LDFLAGS=@LIBEXPAT_LDFLAGS@
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Modules/expat/xmlparse.o: $(srcdir)/Modules/expat/xmlparse.c $(LIBEXPAT_HEADERS) $(PYTHON_HEADERS)
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$(CC) -c $(LIBEXPAT_CFLAGS) -o $@ $(srcdir)/Modules/expat/xmlparse.c
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Modules/expat/xmlrole.o: $(srcdir)/Modules/expat/xmlrole.c $(LIBEXPAT_HEADERS) $(PYTHON_HEADERS)
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$(CC) -c $(LIBEXPAT_CFLAGS) -o $@ $(srcdir)/Modules/expat/xmlrole.c
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Modules/expat/xmltok.o: $(srcdir)/Modules/expat/xmltok.c $(LIBEXPAT_HEADERS) $(PYTHON_HEADERS)
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$(CC) -c $(LIBEXPAT_CFLAGS) -o $@ $(srcdir)/Modules/expat/xmltok.c
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$(LIBEXPAT_A): $(LIBEXPAT_OBJS)
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-rm -f $@
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$(AR) $(ARFLAGS) $@ $(LIBEXPAT_OBJS)
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# create relative links from build/lib.platform/egg.so to Modules/egg.so
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# pybuilddir.txt is created too late. We cannot use it in Makefile
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# targets. ln --relative is not portable.
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@ -2407,12 +2455,12 @@ Python/thread.o: @THREADHEADERS@ $(srcdir)/Python/condvar.h
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MODULE_CMATH_DEPS=$(srcdir)/Modules/_math.h
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MODULE_MATH_DEPS=$(srcdir)/Modules/_math.h
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MODULE_PYEXPAT_DEPS=$(srcdir)/Modules/expat/ascii.h $(srcdir)/Modules/expat/asciitab.h $(srcdir)/Modules/expat/expat.h $(srcdir)/Modules/expat/expat_config.h $(srcdir)/Modules/expat/expat_external.h $(srcdir)/Modules/expat/internal.h $(srcdir)/Modules/expat/latin1tab.h $(srcdir)/Modules/expat/utf8tab.h $(srcdir)/Modules/expat/xmlrole.h $(srcdir)/Modules/expat/xmltok.h $(srcdir)/Modules/expat/xmltok_impl.h
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MODULE_PYEXPAT_DEPS=$(LIBEXPAT_HEADERS) @LIBEXPAT_INTERNAL@
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MODULE_UNICODEDATA_DEPS=$(srcdir)/Modules/unicodedata_db.h $(srcdir)/Modules/unicodename_db.h
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MODULE__BLAKE2_DEPS=$(srcdir)/Modules/_blake2/impl/blake2-config.h $(srcdir)/Modules/_blake2/impl/blake2-dispatch.c $(srcdir)/Modules/_blake2/impl/blake2-impl.h $(srcdir)/Modules/_blake2/impl/blake2-kat.h $(srcdir)/Modules/_blake2/impl/blake2.h $(srcdir)/Modules/_blake2/impl/blake2b-load-sse2.h $(srcdir)/Modules/_blake2/impl/blake2b-load-sse41.h $(srcdir)/Modules/_blake2/impl/blake2b-ref.c $(srcdir)/Modules/_blake2/impl/blake2b-round.h $(srcdir)/Modules/_blake2/impl/blake2b-test.c $(srcdir)/Modules/_blake2/impl/blake2b.c $(srcdir)/Modules/_blake2/impl/blake2bp-test.c $(srcdir)/Modules/_blake2/impl/blake2bp.c $(srcdir)/Modules/_blake2/impl/blake2s-load-sse2.h $(srcdir)/Modules/_blake2/impl/blake2s-load-sse41.h $(srcdir)/Modules/_blake2/impl/blake2s-load-xop.h $(srcdir)/Modules/_blake2/impl/blake2s-ref.c $(srcdir)/Modules/_blake2/impl/blake2s-round.h $(srcdir)/Modules/_blake2/impl/blake2s-test.c $(srcdir)/Modules/_blake2/impl/blake2s.c $(srcdir)/Modules/_blake2/impl/blake2sp-test.c $(srcdir)/Modules/_blake2/impl/blake2sp.c $(srcdir)/Modules/hashlib.h
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MODULE__CTYPES_DEPS=$(srcdir)/Modules/_ctypes/ctypes.h
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MODULE__DECIMAL_DEPS=$(srcdir)/Modules/_decimal/docstrings.h $(LIBMPDEC_HEADERS) @LIBMPDEC_INTERNAL@
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MODULE__ELEMENTTREE_DEPS=$(srcdir)/Modules/expat/ascii.h $(srcdir)/Modules/expat/asciitab.h $(srcdir)/Modules/expat/expat.h $(srcdir)/Modules/expat/expat_config.h $(srcdir)/Modules/expat/expat_external.h $(srcdir)/Modules/expat/internal.h $(srcdir)/Modules/expat/latin1tab.h $(srcdir)/Modules/expat/utf8tab.h $(srcdir)/Modules/expat/xmlparse.c $(srcdir)/Modules/expat/xmlrole.c $(srcdir)/Modules/expat/xmlrole.h $(srcdir)/Modules/expat/xmltok.c $(srcdir)/Modules/expat/xmltok.h $(srcdir)/Modules/expat/xmltok_impl.h $(srcdir)/Modules/pyexpat.c
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MODULE__ELEMENTTREE_DEPS=$(LIBEXPAT_HEADERS) @LIBEXPAT_INTERNAL@
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MODULE__HASHLIB_DEPS=$(srcdir)/Modules/hashlib.h
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MODULE__IO_DEPS=$(srcdir)/Modules/_io/_iomodule.h
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MODULE__MD5_DEPS=$(srcdir)/Modules/hashlib.h
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@ -0,0 +1,2 @@
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Settings for :mod:`pyexpat` C extension are now detected by ``configure``.
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The bundled ``expat`` library is built in ``Makefile``.
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@ -172,8 +172,8 @@ time timemodule.c
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#select selectmodule.c
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# XML
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#_elementtree -I$(srcdir)/Modules/expat _elementtree.c
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#pyexpat -I$(srcdir)/Modules/expat expat/xmlparse.c expat/xmlrole.c expat/xmltok.c pyexpat.c
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#_elementtree _elementtree.c $(EXPAT_CFLAGS)
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#pyexpat pyexpat.c $(EXPAT_CFLAGS) $(EXPAT_LDFLAGS)
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# hashing builtins
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#_blake2 _blake2/blake2module.c _blake2/blake2b_impl.c _blake2/blake2s_impl.c
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@ -664,6 +664,9 @@ LIBMPDEC_INTERNAL
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LIBMPDEC_LDFLAGS
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LIBMPDEC_CFLAGS
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LIBFFI_INCLUDEDIR
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LIBEXPAT_INTERNAL
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LIBEXPAT_LDFLAGS
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LIBEXPAT_CFLAGS
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TZPATH
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SHLIBS
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CFLAGSFORSHARED
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@ -10715,6 +10718,24 @@ fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_system_expat" >&5
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$as_echo "$with_system_expat" >&6; }
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if test "x$with_system_expat" = xyes; then :
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LIBEXPAT_CFLAGS=""
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LIBEXPAT_LDFLAGS="-lexpat"
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LIBEXPAT_INTERNAL=
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else
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LIBEXPAT_CFLAGS="-I\$(srcdir)/Modules/expat"
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LIBEXPAT_LDFLAGS="-lm \$(LIBEXPAT_A)"
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LIBEXPAT_INTERNAL="\$(LIBEXPAT_A)"
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fi
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# Check for use of the system libffi library
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for --with-system-ffi" >&5
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$as_echo_n "checking for --with-system-ffi... " >&6; }
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14
configure.ac
14
configure.ac
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@ -3017,6 +3017,20 @@ AC_ARG_WITH(system_expat,
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AC_MSG_RESULT($with_system_expat)
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AS_VAR_IF([with_system_expat], [yes], [
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LIBEXPAT_CFLAGS=""
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LIBEXPAT_LDFLAGS="-lexpat"
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LIBEXPAT_INTERNAL=
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], [
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LIBEXPAT_CFLAGS="-I\$(srcdir)/Modules/expat"
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LIBEXPAT_LDFLAGS="-lm \$(LIBEXPAT_A)"
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LIBEXPAT_INTERNAL="\$(LIBEXPAT_A)"
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])
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AC_SUBST([LIBEXPAT_CFLAGS])
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AC_SUBST([LIBEXPAT_LDFLAGS])
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AC_SUBST([LIBEXPAT_INTERNAL])
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# Check for use of the system libffi library
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AC_MSG_CHECKING(for --with-system-ffi)
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AC_ARG_WITH(system_ffi,
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138
setup.py
138
setup.py
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@ -364,6 +364,57 @@ def find_module_file(module, dirlist):
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return os.path.join(dirs[0], module)
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def parse_cflags(flags):
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"""Parse a string with compiler flags (-I, -D, -U, extra)
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Distutils appends extra args to the compiler arguments. Some flags like
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-I must appear earlier. Otherwise the pre-processor picks up files
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from system inclue directories.
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"""
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include_dirs = []
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define_macros = []
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undef_macros = []
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extra_compile_args = []
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if flags is not None:
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# shlex.split(None) reads from stdin
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for token in shlex.split(flags):
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switch = token[0:2]
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value = token[2:]
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if switch == '-I':
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include_dirs.append(value)
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elif switch == '-D':
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key, _, val = value.partition("=")
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if not val:
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val = None
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define_macros.append((key, val))
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elif switch == '-U':
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undef_macros.append(value)
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else:
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extra_compile_args.append(token)
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return include_dirs, define_macros, undef_macros, extra_compile_args
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def parse_ldflags(flags):
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"""Parse a string with linker flags (-L, -l, extra)"""
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library_dirs = []
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libraries = []
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extra_link_args = []
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if flags is not None:
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# shlex.split(None) reads from stdin
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for token in shlex.split(flags):
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switch = token[0:2]
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value = token[2:]
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if switch == '-L':
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library_dirs.append(value)
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elif switch == '-l':
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libraries.append(value)
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else:
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extra_link_args.append(token)
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return library_dirs, libraries, extra_link_args
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class PyBuildExt(build_ext):
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def __init__(self, dist):
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@ -1469,59 +1520,39 @@ class PyBuildExt(build_ext):
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#
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# More information on Expat can be found at www.libexpat.org.
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#
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if '--with-system-expat' in sysconfig.get_config_var("CONFIG_ARGS"):
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expat_inc = []
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extra_compile_args = []
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expat_lib = ['expat']
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expat_sources = []
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expat_depends = []
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else:
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expat_inc = [os.path.join(self.srcdir, 'Modules', 'expat')]
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extra_compile_args = []
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# bpo-44394: libexpat uses isnan() of math.h and needs linkage
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# against the libm
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expat_lib = ['m']
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expat_sources = ['expat/xmlparse.c',
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'expat/xmlrole.c',
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'expat/xmltok.c']
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expat_depends = ['expat/ascii.h',
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'expat/asciitab.h',
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'expat/expat.h',
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'expat/expat_config.h',
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'expat/expat_external.h',
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'expat/internal.h',
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'expat/latin1tab.h',
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'expat/utf8tab.h',
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'expat/xmlrole.h',
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'expat/xmltok.h',
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'expat/xmltok_impl.h'
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]
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cflags = parse_cflags(sysconfig.get_config_var("EXPAT_CFLAGS"))
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include_dirs, define_macros, undef_macros, extra_compile_args = cflags
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# ldflags includes either system libexpat or full path to
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# our static libexpat.a.
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ldflags = parse_ldflags(sysconfig.get_config_var("EXPAT_LDFLAGS"))
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library_dirs, libraries, extra_link_args = ldflags
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cc = sysconfig.get_config_var('CC').split()[0]
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ret = run_command(
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'"%s" -Werror -Wno-unreachable-code -E -xc /dev/null >/dev/null 2>&1' % cc)
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if ret == 0:
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extra_compile_args.append('-Wno-unreachable-code')
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expat_depends = []
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libexpat_a = sysconfig.get_config_var("LIBEXPAT_A")
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if libexpat_a:
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expat_depends.append(libexpat_a)
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self.add(Extension('pyexpat',
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include_dirs=include_dirs,
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define_macros=define_macros,
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undef_macros=undef_macros,
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extra_compile_args=extra_compile_args,
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include_dirs=expat_inc,
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libraries=expat_lib,
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sources=['pyexpat.c'] + expat_sources,
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library_dirs=library_dirs,
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libraries=libraries,
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extra_link_args=extra_link_args,
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sources=['pyexpat.c'],
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depends=expat_depends))
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# Fredrik Lundh's cElementTree module. Note that this also
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# uses expat (via the CAPI hook in pyexpat).
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if os.path.isfile(os.path.join(self.srcdir, 'Modules', '_elementtree.c')):
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self.add(Extension('_elementtree',
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include_dirs=expat_inc,
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libraries=expat_lib,
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sources=['_elementtree.c'],
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depends=['pyexpat.c', *expat_sources,
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*expat_depends]))
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else:
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self.missing.append('_elementtree')
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self.add(Extension('_elementtree',
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include_dirs=include_dirs,
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define_macros=define_macros,
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undef_macros=undef_macros,
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extra_compile_args=extra_compile_args,
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# no EXPAT_LDFLAGS
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sources=['_elementtree.c'],
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depends=['pyexpat.c', *expat_depends]))
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def detect_multibytecodecs(self):
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# Hye-Shik Chang's CJKCodecs modules.
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@ -2019,15 +2050,14 @@ class PyBuildExt(build_ext):
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# Stefan Krah's _decimal module
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sources = ['_decimal/_decimal.c']
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depends = ['_decimal/docstrings.h']
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define_macros = []
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cflags = sysconfig.get_config_var("DECIMAL_CFLAGS")
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extra_compile_args = shlex.split(cflags) if cflags else None
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cflags = parse_cflags(sysconfig.get_config_var("DECIMAL_CFLAGS"))
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include_dirs, define_macros, undef_macros, extra_compile_args = cflags
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# ldflags includes either system libmpdec or full path to
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# our static libmpdec.a.
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ldflags = sysconfig.get_config_var("DECIMAL_LDFLAGS")
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extra_link_args = shlex.split(ldflags) if ldflags else None
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ldflags = parse_ldflags(sysconfig.get_config_var("DECIMAL_LDFLAGS"))
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library_dirs, libraries, extra_link_args = ldflags
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libmpdec_a = sysconfig.get_config_var("LIBMPDEC_A")
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if libmpdec_a:
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depends.append(libmpdec_a)
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@ -2035,8 +2065,12 @@ class PyBuildExt(build_ext):
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# Uncomment for extra functionality:
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#define_macros.append(('EXTRA_FUNCTIONALITY', 1))
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self.add(Extension('_decimal',
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include_dirs=include_dirs,
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define_macros=define_macros,
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undef_macros=undef_macros,
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extra_compile_args=extra_compile_args,
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library_dirs=library_dirs,
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libraries=libraries,
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extra_link_args=extra_link_args,
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sources=sources,
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depends=depends))
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