+++ /dev/null
-# -*- Makefile -*-
-# Define dependencies of generated files that are checked into hg.
-# The syntax of this file uses make rule dependencies, without actions
-
-Python/importlib.h: Lib/importlib/_bootstrap.py Programs/_freeze_importlib.c
-
-Include/opcode.h: Lib/opcode.py Tools/scripts/generate_opcode_h.py
-
-Include/Python-ast.h: Parser/Python.asdl Parser/asdl.py Parser/asdl_c.py
-Python/Python-ast.c: Include/Python-ast.h
-
-Python/opcode_targets.h: Python/makeopcodetargets.py Lib/opcode.py
-
-Objects/typeslots.inc: Include/typeslots.h Objects/typeslots.py
-
-Include/graminit.h: Grammar/Grammar Parser/acceler.c Parser/grammar1.c Parser/listnode.c Parser/node.c Parser/parser.c Parser/bitset.c Parser/metagrammar.c Parser/firstsets.c Parser/grammar.c Parser/pgen.c Objects/obmalloc.c Python/dynamic_annotations.c Python/mysnprintf.c Python/pyctype.c Parser/tokenizer_pgen.c Parser/printgrammar.c Parser/parsetok_pgen.c Parser/pgenmain.c
-Python/graminit.c: Include/graminit.h Grammar/Grammar Parser/acceler.c Parser/grammar1.c Parser/listnode.c Parser/node.c Parser/parser.c Parser/bitset.c Parser/metagrammar.c Parser/firstsets.c Parser/grammar.c Parser/pgen.c Objects/obmalloc.c Python/dynamic_annotations.c Python/mysnprintf.c Python/pyctype.c Parser/tokenizer_pgen.c Parser/printgrammar.c Parser/parsetok_pgen.c Parser/pgenmain.c
AIX_GENUINE_CPLUSPLUS = "0"
AR = "ar"
ARFLAGS = "rc"
- ASDLGEN = "./Parser/asdl_c.py"
...
This call will print in the standard output the information returned by
if plat_specific:
return base
if _sys_home:
- incdir = os.path.join(_sys_home, get_config_var('AST_H_DIR'))
+ incdir = os.path.join(_sys_home, 'Include')
else:
incdir = os.path.join(get_config_var('srcdir'), 'Include')
return os.path.normpath(incdir)
shellQuote(WORKDIR)[1:-1],
shellQuote(WORKDIR)[1:-1]))
- # bpo-29550: avoid using make touch until it is fixed for git
- # print("Running make touch")
- # runCommand("make touch")
-
print("Running make")
runCommand("make")
PYTHON= python$(EXE)
BUILDPYTHON= python$(BUILDEXE)
-PYTHON_FOR_GEN=@PYTHON_FOR_GEN@
+PYTHON_FOR_REGEN=@PYTHON_FOR_REGEN@
PYTHON_FOR_BUILD=@PYTHON_FOR_BUILD@
_PYTHON_HOST_PLATFORM=@_PYTHON_HOST_PLATFORM@
BUILD_GNU_TYPE= @build@
Modules/_io/stringio.o
##########################################################################
-# Grammar
-GRAMMAR_H= Include/graminit.h
-GRAMMAR_C= Python/graminit.c
-GRAMMAR_INPUT= $(srcdir)/Grammar/Grammar
-
LIBFFI_INCLUDEDIR= @LIBFFI_INCLUDEDIR@
PGENOBJS= $(POBJS) $(PGOBJS)
-##########################################################################
-# opcode.h generation
-OPCODE_H_DIR= $(srcdir)/Include
-OPCODE_H_SCRIPT= $(srcdir)/Tools/scripts/generate_opcode_h.py
-OPCODE_H= $(OPCODE_H_DIR)/opcode.h
-OPCODE_H_GEN= $(PYTHON_FOR_GEN) $(OPCODE_H_SCRIPT) $(srcdir)/Lib/opcode.py $(OPCODE_H)
-
-##########################################################################
-# AST
-AST_H_DIR= Include
-AST_H= $(AST_H_DIR)/Python-ast.h
-AST_C_DIR= Python
-AST_C= $(AST_C_DIR)/Python-ast.c
-AST_ASDL= $(srcdir)/Parser/Python.asdl
-
-ASDLGEN_FILES= $(srcdir)/Parser/asdl.py $(srcdir)/Parser/asdl_c.py
-# Note that a build now requires Python to exist before the build starts.
-# Use "hg touch" to fix up screwed up file mtimes in a checkout.
-ASDLGEN= $(PYTHON_FOR_GEN) $(srcdir)/Parser/asdl_c.py
-
##########################################################################
# Python
-OPCODETARGETS_H= \
- Python/opcode_targets.h
-
-OPCODETARGETGEN= \
- $(srcdir)/Python/makeopcodetargets.py
-
-OPCODETARGETGEN_FILES= \
- $(OPCODETARGETGEN) $(srcdir)/Lib/opcode.py
-
PYTHON_OBJS= \
Python/_warnings.o \
Python/Python-ast.o \
@echo "lcov report at $(COVERAGE_REPORT)/index.html"
@echo
-coverage-report:
+# Force regeneration of parser and importlib
+coverage-report: regen-grammar regen-importlib
: # force rebuilding of parser and importlib
@touch $(GRAMMAR_INPUT)
@touch $(srcdir)/Lib/importlib/_bootstrap.py
Programs/_freeze_importlib: Programs/_freeze_importlib.o $(LIBRARY_OBJS_OMIT_FROZEN)
$(LINKCC) $(PY_LDFLAGS) -o $@ Programs/_freeze_importlib.o $(LIBRARY_OBJS_OMIT_FROZEN) $(LIBS) $(MODLIBS) $(SYSLIBS) $(LDLAST)
-Python/importlib_external.h: @GENERATED_COMMENT@ $(srcdir)/Lib/importlib/_bootstrap_external.py Programs/_freeze_importlib Python/marshal.c
+.PHONY: regen-importlib
+regen-importlib: Programs/_freeze_importlib
+ # Regenerate Python/importlib_external.h
+ # from Lib/importlib/_bootstrap_external.py using _freeze_importlib
./Programs/_freeze_importlib \
- $(srcdir)/Lib/importlib/_bootstrap_external.py Python/importlib_external.h
-
-Python/importlib.h: @GENERATED_COMMENT@ $(srcdir)/Lib/importlib/_bootstrap.py Programs/_freeze_importlib Python/marshal.c
+ $(srcdir)/Lib/importlib/_bootstrap_external.py \
+ $(srcdir)/Python/importlib_external.h
+ # Regenerate Python/importlib.h from Lib/importlib/_bootstrap.py
+ # using _freeze_importlib
./Programs/_freeze_importlib \
- $(srcdir)/Lib/importlib/_bootstrap.py Python/importlib.h
+ $(srcdir)/Lib/importlib/_bootstrap.py \
+ $(srcdir)/Python/importlib.h
+
+
+############################################################################
+# Regenerate all generated files
+regen-all: regen-opcode regen-opcode-targets regen-typeslots regen-grammar regen-ast regen-importlib
############################################################################
# Special rules for object files
$(IO_OBJS): $(IO_H)
-$(GRAMMAR_H): @GENERATED_COMMENT@ $(GRAMMAR_INPUT) $(PGEN)
- @$(MKDIR_P) Include
- $(PGEN) $(GRAMMAR_INPUT) $(GRAMMAR_H) $(GRAMMAR_C)
-$(GRAMMAR_C): @GENERATED_COMMENT@ $(GRAMMAR_H)
- touch $(GRAMMAR_C)
-
$(PGEN): $(PGENOBJS)
$(CC) $(OPT) $(PY_LDFLAGS) $(PGENOBJS) $(LIBS) -o $(PGEN)
+.PHONY: regen-grammar
+regen-grammar: $(PGEN)
+ # Regenerate Include/graminit.h and Python/graminit.c
+ # from Grammar/Grammar using pgen
+ @$(MKDIR_P) Include
+ $(PGEN) $(srcdir)/Grammar/Grammar \
+ $(srcdir)/Include/graminit.h \
+ $(srcdir)/Python/graminit.c
+
Parser/grammar.o: $(srcdir)/Parser/grammar.c \
$(srcdir)/Include/token.h \
$(srcdir)/Include/grammar.h
Parser/pgenmain.o: $(srcdir)/Include/parsetok.h
-$(AST_H): $(AST_ASDL) $(ASDLGEN_FILES)
- $(MKDIR_P) $(AST_H_DIR)
- $(ASDLGEN) -h $(AST_H_DIR) $(AST_ASDL)
-
-$(AST_C): $(AST_H) $(AST_ASDL) $(ASDLGEN_FILES)
- $(MKDIR_P) $(AST_C_DIR)
- $(ASDLGEN) -c $(AST_C_DIR) $(AST_ASDL)
-
-$(OPCODE_H): $(srcdir)/Lib/opcode.py $(OPCODE_H_SCRIPT)
- $(OPCODE_H_GEN)
-
-Python/compile.o Python/symtable.o Python/ast.o: $(GRAMMAR_H) $(AST_H)
+.PHONY=regen-ast
+regen-ast:
+ # Regenerate Include/Python-ast.h using Parser/asdl_c.py -h
+ $(MKDIR_P) $(srcdir)/Include
+ $(PYTHON_FOR_REGEN) $(srcdir)/Parser/asdl_c.py \
+ -h $(srcdir)/Include \
+ $(srcdir)/Parser/Python.asdl
+ # Regenerate Python/Python-ast.c using Parser/asdl_c.py -c
+ $(MKDIR_P) $(srcdir)/Python
+ $(PYTHON_FOR_REGEN) $(srcdir)/Parser/asdl_c.py \
+ -c $(srcdir)/Python \
+ $(srcdir)/Parser/Python.asdl
+
+.PHONY: regen-opcode
+regen-opcode:
+ # Regenerate Include/opcode.h from Lib/opcode.py
+ # using Tools/scripts/generate_opcode_h.py
+ $(PYTHON_FOR_REGEN) $(srcdir)/Tools/scripts/generate_opcode_h.py \
+ $(srcdir)/Lib/opcode.py \
+ $(srcdir)/Include/opcode.h
+
+Python/compile.o Python/symtable.o Python/ast.o: $(srcdir)/Include/graminit.h $(srcdir)/Include/Python-ast.h
Python/getplatform.o: $(srcdir)/Python/getplatform.c
$(CC) -c $(PY_CORE_CFLAGS) -DPLATFORM='"$(MACHDEP)"' -o $@ $(srcdir)/Python/getplatform.c
Objects/dictobject.o: $(srcdir)/Objects/stringlib/eq.h $(srcdir)/Objects/dict-common.h
Objects/setobject.o: $(srcdir)/Objects/stringlib/eq.h
-$(OPCODETARGETS_H): $(OPCODETARGETGEN_FILES)
- $(PYTHON_FOR_GEN) $(OPCODETARGETGEN) $(OPCODETARGETS_H)
+.PHONY: regen-opcode-targets
+regen-opcode-targets:
+ # Regenerate Python/opcode_targets.h from Lib/opcode.py
+ # using Python/makeopcodetargets.py
+ $(PYTHON_FOR_REGEN) $(srcdir)/Python/makeopcodetargets.py \
+ $(srcdir)/Python/opcode_targets.h
-Python/ceval.o: $(OPCODETARGETS_H) $(srcdir)/Python/ceval_gil.h
+Python/ceval.o: $(srcdir)/Python/opcode_targets.h $(srcdir)/Python/ceval_gil.h
-Python/frozen.o: Python/importlib.h Python/importlib_external.h
+Python/frozen.o: $(srcdir)/Python/importlib.h $(srcdir)/Python/importlib_external.h
# Generate DTrace probe macros, then rename them (PYTHON_ -> PyDTrace_) to
# follow our naming conventions. dtrace(1) uses the output filename to generate
$(DTRACE) $(DFLAGS) -o $@ -G -s $< $(DTRACE_DEPS)
Objects/typeobject.o: Objects/typeslots.inc
-Objects/typeslots.inc: $(srcdir)/Include/typeslots.h $(srcdir)/Objects/typeslots.py
- $(PYTHON_FOR_GEN) $(srcdir)/Objects/typeslots.py < $(srcdir)/Include/typeslots.h Objects/typeslots.inc
+
+.PHONY: regen-typeslots
+regen-typeslots:
+ # Regenerate Objects/typeslots.inc from Include/typeslotsh
+ # using Objects/typeslots.py
+ $(PYTHON_FOR_REGEN) $(srcdir)/Objects/typeslots.py \
+ < $(srcdir)/Include/typeslots.h \
+ $(srcdir)/Objects/typeslots.inc
############################################################################
# Header files
$(srcdir)/Include/node.h \
$(srcdir)/Include/object.h \
$(srcdir)/Include/objimpl.h \
- $(OPCODE_H) \
+ $(srcdir)/Include/opcode.h \
$(srcdir)/Include/osdefs.h \
$(srcdir)/Include/osmodule.h \
$(srcdir)/Include/patchlevel.h \
$(srcdir)/Include/weakrefobject.h \
pyconfig.h \
$(PARSER_HEADERS) \
- $(AST_H) \
+ $(srcdir)/Include/Python-ast.h \
$(DTRACE_HEADERS)
$(LIBRARY_OBJS) $(MODOBJS) Programs/python.o: $(PYTHON_HEADERS)
$(SHELL) config.status --recheck
$(SHELL) config.status
-# Rebuild the configure script from configure.ac; also rebuild pyconfig.h.in
+# Regenerate configure and pyconfig.h.in
+.PHONY: autoconf
autoconf:
+ # Regenerate the configure script from configure.ac using autoconf
(cd $(srcdir); autoconf -Wall)
+ # Regenerate pyconfig.h.in from configure.ac using autoheader
(cd $(srcdir); autoheader -Wall)
# Create a tags file for vi
etags Include/*.h; \
for i in $(SRCDIRS); do etags -a $$i/*.[ch]; done
-# This fixes up the mtimes of checked-in generated files, assuming that they
-# only *appear* to be outdated because of checkout order.
-# This is run while preparing a source release tarball, and can be run manually
-# to avoid bootstrap issues.
-touch:
- cd $(srcdir); \
- hg --config extensions.touch=Tools/hg/hgtouch.py touch -v
-
# Sanitation targets -- clean leaves libraries, executables and tags
# files, which clobber removes as well
pycremoval:
.PHONY: maninstall libinstall inclinstall libainstall sharedinstall
.PHONY: frameworkinstall frameworkinstallframework frameworkinstallstructure
.PHONY: frameworkinstallmaclib frameworkinstallapps frameworkinstallunixtools
-.PHONY: frameworkaltinstallunixtools recheck autoconf clean clobber distclean
+.PHONY: frameworkaltinstallunixtools recheck clean clobber distclean
.PHONY: smelly funny patchcheck touch altmaninstall commoninstall
.PHONY: gdbhooks
Core and Builtins
-----------------
-- bpo-12414: sys.getsizeof() on a code object now returns the sizes
+- bpo-12414: sys.getsizeof() on a code object now returns the sizes
which includes the code struct and sizes of objects which it references.
Patch by Dong-hee Na.
Build
-----
+- bpo-23404: Don't regenerate generated files based on file modification time
+ anymore: the action is now explicit. Replace ``make touch`` with
+ ``make regen-all``.
+
- bpo-29643: Fix ``--enable-optimization`` didn't work.
Documentation
+++ /dev/null
-"""Bring time stamps of generated checked-in files into the right order
-
-A versioned configuration file .hgtouch specifies generated files, in the
-syntax of make rules.
-
- output: input1 input2
-
-In addition to the dependency syntax, #-comments are supported.
-"""
-import errno
-import os
-import time
-
-def parse_config(repo):
- try:
- fp = repo.wfile(".hgtouch")
- except IOError, e:
- if e.errno != errno.ENOENT:
- raise
- return {}
- result = {}
- with fp:
- for line in fp:
- # strip comments
- line = line.split('#')[0].strip()
- if ':' not in line:
- continue
- outputs, inputs = line.split(':', 1)
- outputs = outputs.split()
- inputs = inputs.split()
- for o in outputs:
- try:
- result[o].extend(inputs)
- except KeyError:
- result[o] = inputs
- return result
-
-def check_rule(ui, repo, modified, basedir, output, inputs):
- """Verify that the output is newer than any of the inputs.
- Return (status, stamp), where status is True if the update succeeded,
- and stamp is the newest time stamp assigned to any file (might be in
- the future).
-
- If basedir is nonempty, it gives a directory in which the tree is to
- be checked.
- """
- f_output = repo.wjoin(os.path.join(basedir, output))
- try:
- o_time = os.stat(f_output).st_mtime
- except OSError:
- ui.warn("Generated file %s does not exist\n" % output)
- return False, 0
- youngest = 0 # youngest dependency
- backdate = None
- backdate_source = None
- for i in inputs:
- f_i = repo.wjoin(os.path.join(basedir, i))
- try:
- i_time = os.stat(f_i).st_mtime
- except OSError:
- ui.warn(".hgtouch input file %s does not exist\n" % i)
- return False, 0
- if i in modified:
- # input is modified. Need to backdate at least to i_time
- if backdate is None or backdate > i_time:
- backdate = i_time
- backdate_source = i
- continue
- youngest = max(i_time, youngest)
- if backdate is not None:
- ui.warn("Input %s for file %s locally modified\n" % (backdate_source, output))
- # set to 1s before oldest modified input
- backdate -= 1
- os.utime(f_output, (backdate, backdate))
- return False, 0
- if youngest >= o_time:
- ui.note("Touching %s\n" % output)
- youngest += 1
- os.utime(f_output, (youngest, youngest))
- return True, youngest
- else:
- # Nothing to update
- return True, 0
-
-def do_touch(ui, repo, basedir):
- if basedir:
- if not os.path.isdir(repo.wjoin(basedir)):
- ui.warn("Abort: basedir %r does not exist\n" % basedir)
- return
- modified = []
- else:
- modified = repo.status()[0]
- dependencies = parse_config(repo)
- success = True
- tstamp = 0 # newest time stamp assigned
- # try processing all rules in topological order
- hold_back = {}
- while dependencies:
- output, inputs = dependencies.popitem()
- # check whether any of the inputs is generated
- for i in inputs:
- if i in dependencies:
- hold_back[output] = inputs
- continue
- _success, _tstamp = check_rule(ui, repo, modified, basedir, output, inputs)
- success = success and _success
- tstamp = max(tstamp, _tstamp)
- # put back held back rules
- dependencies.update(hold_back)
- hold_back = {}
- now = time.time()
- if tstamp > now:
- # wait until real time has passed the newest time stamp, to
- # avoid having files dated in the future
- time.sleep(tstamp-now)
- if hold_back:
- ui.warn("Cyclic dependency involving %s\n" % (' '.join(hold_back.keys())))
- return False
- return success
-
-def touch(ui, repo, basedir):
- "touch generated files that are older than their sources after an update."
- do_touch(ui, repo, basedir)
-
-cmdtable = {
- "touch": (touch,
- [('b', 'basedir', '', 'base dir of the tree to apply touching')],
- "hg touch [-b BASEDIR]")
-}
CONFIG_ARGS
SOVERSION
VERSION
-GENERATED_COMMENT
PYTHON_FOR_BUILD
-PYTHON_FOR_GEN
+PYTHON_FOR_REGEN
host_os
host_vendor
host_cpu
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_PYTHON_FOR_GEN+:} false; then :
+if ${ac_cv_prog_PYTHON_FOR_REGEN+:} false; then :
$as_echo_n "(cached) " >&6
else
- if test -n "$PYTHON_FOR_GEN"; then
- ac_cv_prog_PYTHON_FOR_GEN="$PYTHON_FOR_GEN" # Let the user override the test.
+ if test -n "$PYTHON_FOR_REGEN"; then
+ ac_cv_prog_PYTHON_FOR_REGEN="$PYTHON_FOR_REGEN" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_PYTHON_FOR_GEN="$ac_prog"
+ ac_cv_prog_PYTHON_FOR_REGEN="$ac_prog"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
fi
fi
fi
-PYTHON_FOR_GEN=$ac_cv_prog_PYTHON_FOR_GEN
-if test -n "$PYTHON_FOR_GEN"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PYTHON_FOR_GEN" >&5
-$as_echo "$PYTHON_FOR_GEN" >&6; }
+PYTHON_FOR_REGEN=$ac_cv_prog_PYTHON_FOR_REGEN
+if test -n "$PYTHON_FOR_REGEN"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PYTHON_FOR_REGEN" >&5
+$as_echo "$PYTHON_FOR_REGEN" >&6; }
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
- test -n "$PYTHON_FOR_GEN" && break
+ test -n "$PYTHON_FOR_REGEN" && break
done
-test -n "$PYTHON_FOR_GEN" || PYTHON_FOR_GEN="not-found"
+test -n "$PYTHON_FOR_REGEN" || PYTHON_FOR_REGEN="python3"
-if test "$PYTHON_FOR_GEN" = not-found; then
- PYTHON_FOR_GEN='@echo "Cannot generate $@, python not found !" && \
- echo "To skip re-generation of $@ run <make touch> or <make -t $@>." && \
- echo "Otherwise, set python in PATH and run configure or run <make PYTHON_FOR_GEN=python>." && false &&'
-fi
if test "$cross_compiling" = yes; then
$as_echo "$interp" >&6; }
PYTHON_FOR_BUILD='_PYTHON_PROJECT_BASE=$(abs_builddir) _PYTHON_HOST_PLATFORM=$(_PYTHON_HOST_PLATFORM) PYTHONPATH=$(shell test -f pybuilddir.txt && echo $(abs_builddir)/`cat pybuilddir.txt`:)$(srcdir)/Lib _PYTHON_SYSCONFIGDATA_NAME=_sysconfigdata_$(ABIFLAGS)_$(MACHDEP)_$(MULTIARCH) '$interp
fi
- # Used to comment out stuff for rebuilding generated files
- GENERATED_COMMENT='#'
elif test "$cross_compiling" = maybe; then
as_fn_error $? "Cross compiling required --host=HOST-TUPLE and --build=ARCH" "$LINENO" 5
else
PYTHON_FOR_BUILD='./$(BUILDPYTHON) -E'
- GENERATED_COMMENT=''
fi
-
if test "$prefix" != "/"; then
prefix=`echo "$prefix" | sed -e 's/\/$//g'`
fi
# pybuilddir.txt will be created by --generate-posix-vars in the Makefile
rm -f pybuilddir.txt
-AC_CHECK_PROGS(PYTHON_FOR_GEN, python$PACKAGE_VERSION python3 python, not-found)
-if test "$PYTHON_FOR_GEN" = not-found; then
- PYTHON_FOR_GEN='@echo "Cannot generate $@, python not found !" && \
- echo "To skip re-generation of $@ run <make touch> or <make -t $@>." && \
- echo "Otherwise, set python in PATH and run configure or run <make PYTHON_FOR_GEN=python>." && false &&'
-fi
-AC_SUBST(PYTHON_FOR_GEN)
+AC_CHECK_PROGS(PYTHON_FOR_REGEN, python$PACKAGE_VERSION python3 python, python3)
+AC_SUBST(PYTHON_FOR_REGEN)
if test "$cross_compiling" = yes; then
AC_MSG_CHECKING([for python interpreter for cross build])
AC_MSG_RESULT($interp)
PYTHON_FOR_BUILD='_PYTHON_PROJECT_BASE=$(abs_builddir) _PYTHON_HOST_PLATFORM=$(_PYTHON_HOST_PLATFORM) PYTHONPATH=$(shell test -f pybuilddir.txt && echo $(abs_builddir)/`cat pybuilddir.txt`:)$(srcdir)/Lib _PYTHON_SYSCONFIGDATA_NAME=_sysconfigdata_$(ABIFLAGS)_$(MACHDEP)_$(MULTIARCH) '$interp
fi
- # Used to comment out stuff for rebuilding generated files
- GENERATED_COMMENT='#'
elif test "$cross_compiling" = maybe; then
AC_MSG_ERROR([Cross compiling required --host=HOST-TUPLE and --build=ARCH])
else
PYTHON_FOR_BUILD='./$(BUILDPYTHON) -E'
- GENERATED_COMMENT=''
fi
AC_SUBST(PYTHON_FOR_BUILD)
-AC_SUBST(GENERATED_COMMENT)
dnl Ensure that if prefix is specified, it does not end in a slash. If
dnl it does, we get path names containing '//' which is both ugly and