gcc/config/i386/x-mingw32-utf8 - gcc.git - Git at Google

 # Copyright (C) 2023-2025 Free Software Foundation, Inc.
 #
 # This file is part of GCC.
 #
 # GCC is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 3, or (at your option)
 # any later version.
 #
 # GCC is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with GCC; see the file COPYING3.  If not see
 # <http://www.gnu.org/licenses/>.
 #
 #
 # For mingw Windows hosts, embed a manifest that sets the active
 # code page of the driver and compiler proper processes to utf8.
 # This only has an effect when gcc is hosted on Windows version
 # 1903 (May 2019 Update) or later.

 # The resource .rc file references the utf8 .manifest file.
 # Compile it into an object file using windres.
 # The resulting .o file gets added to host_extra_gcc_objs in
 # config.host for mingw hosts and gets linked into
 # the driver as a .o file, so it's lack of symbols is OK.
 utf8rc-mingw32.o : $(srcdir)/config/i386/utf8-mingw32.rc \
   $(srcdir)/config/i386/winnt-utf8.manifest
 	$(WINDRES) $< $@

 # Create an object file that just exports the global symbol
 # HOST_EXTRA_OBJS_SYMBOL
 sym-mingw32.o : $(srcdir)/config/i386/sym-mingw32.cc
 	$(COMPILER) -c $<

 # Combine the two object files into one which has both the
 # compiled utf8 resource and the HOST_EXTRA_OBJS_SYMBOL symbol.
 # The resulting .o file gets added to host_extra_objs in
 # config.host for mingw hosts and gets archived into
 # libbackend.a which gets linked into the compiler proper.
 # If nothing references it into libbackend.a, it will not
 # get linked into the compiler proper eventually.
 # Therefore we need to request the symbol at compiler link time.
 # -nostdlib is required for supporting old gcc versions that
 # don't apply it automatically with -r.
 utf8-mingw32.o : utf8rc-mingw32.o sym-mingw32.o
 	$(COMPILER) -r -nostdlib utf8rc-mingw32.o sym-mingw32.o -o $@

 # Force compilers to link against the utf8 resource by
 # requiring the symbol to be defined.
 # Otherwise the object file won't get linked in the compilers
 # because nothing is referencing it in libbackend.a
 # This is expected because the resource object is not supposed
 # to have any symbols, it just has to be linked into the
 # executable in order for Windows to use the utf8 code page.
 # Some build environments are passing these flags to other
 # programs as well, so make the symbol definition optional
 # such that these programs don't fail to build when they
 # don't find it.
 $(COMPILERS) : override LDFLAGS += -Wl,--undefined=HOST_EXTRA_OBJS_SYMBOL
	# Copyright (C) 2023-2025 Free Software Foundation, Inc.
	#
	# This file is part of GCC.
	#
	# GCC is free software; you can redistribute it and/or modify
	# it under the terms of the GNU General Public License as published by
	# the Free Software Foundation; either version 3, or (at your option)
	# any later version.
	#
	# GCC is distributed in the hope that it will be useful,
	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	# GNU General Public License for more details.
	#
	# You should have received a copy of the GNU General Public License
	# along with GCC; see the file COPYING3. If not see
	# <http://www.gnu.org/licenses/>.
	#
	#
	# For mingw Windows hosts, embed a manifest that sets the active
	# code page of the driver and compiler proper processes to utf8.
	# This only has an effect when gcc is hosted on Windows version
	# 1903 (May 2019 Update) or later.

	# The resource .rc file references the utf8 .manifest file.
	# Compile it into an object file using windres.
	# The resulting .o file gets added to host_extra_gcc_objs in
	# config.host for mingw hosts and gets linked into
	# the driver as a .o file, so it's lack of symbols is OK.
	utf8rc-mingw32.o : $(srcdir)/config/i386/utf8-mingw32.rc \
	$(srcdir)/config/i386/winnt-utf8.manifest
	$(WINDRES) $< $@

	# Create an object file that just exports the global symbol
	# HOST_EXTRA_OBJS_SYMBOL
	sym-mingw32.o : $(srcdir)/config/i386/sym-mingw32.cc
	$(COMPILER) -c $<

	# Combine the two object files into one which has both the
	# compiled utf8 resource and the HOST_EXTRA_OBJS_SYMBOL symbol.
	# The resulting .o file gets added to host_extra_objs in
	# config.host for mingw hosts and gets archived into
	# libbackend.a which gets linked into the compiler proper.
	# If nothing references it into libbackend.a, it will not
	# get linked into the compiler proper eventually.
	# Therefore we need to request the symbol at compiler link time.
	# -nostdlib is required for supporting old gcc versions that
	# don't apply it automatically with -r.
	utf8-mingw32.o : utf8rc-mingw32.o sym-mingw32.o
	$(COMPILER) -r -nostdlib utf8rc-mingw32.o sym-mingw32.o -o $@

	# Force compilers to link against the utf8 resource by
	# requiring the symbol to be defined.
	# Otherwise the object file won't get linked in the compilers
	# because nothing is referencing it in libbackend.a
	# This is expected because the resource object is not supposed
	# to have any symbols, it just has to be linked into the
	# executable in order for Windows to use the utf8 code page.
	# Some build environments are passing these flags to other
	# programs as well, so make the symbol definition optional
	# such that these programs don't fail to build when they
	# don't find it.
	$(COMPILERS) : override LDFLAGS += -Wl,--undefined=HOST_EXTRA_OBJS_SYMBOL