# -*- Makefile -*- for GNU Emacs on the Microsoft W32 API.
# Copyright (C) 2011 Free Software Foundation, Inc.

# This file is part of GNU Emacs.

# GNU Emacs 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 of the License, or
# (at your option) any later version.

# GNU Emacs 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.

ALL = gnulib

.PHONY: $(ALL)

LOCAL_FLAGS	= -DHAVE_CONFIG_H=1 -I. -I../nt/inc -I../src
LIBS 		=

GNULIBOBJS = $(BLD)/dtoastr.$(O) \
	     $(BLD)/getopt.$(O)  \
	     $(BLD)/getopt1.$(O) \
	     $(BLD)/strftime.$(O) \
	     $(BLD)/time_r.$(O)

#
# Build the library
#
$(BLD)/libgnu.$(A):	$(GNULIBOBJS)
	- $(DEL) $@
	$(AR) $(AR_OUT)$@ $(ALL_DEPS)

gnulib:	stamp_BLD $(BLD)/libgnu.$(A)

#
# Build everything
#
all:		stamp_BLD $(ALL)

### TAGS ###

TAGS:
	 ../lib-src/$(BLD)/etags.exe *.c *.h

### DEPENDENCIES ###

EMACS_ROOT	= ..
SRC		= .

$(BLD)/dtoastr.$(O) : \
	$(SRC)/dtoastr.c \
	$(SRC)/ftoastr.c \
	$(SRC)/ftoastr.h \
	$(SRC)/intprops.h \
	$(EMACS_ROOT)/src/s/ms-w32.h \
	$(EMACS_ROOT)/src/m/intel386.h \
	$(EMACS_ROOT)/src/config.h

$(BLD)/getopt.$(O) : \
	$(SRC)/getopt.c \
	$(SRC)/getopt.h \
	$(SRC)/getopt_int.h \
	$(EMACS_ROOT)/src/s/ms-w32.h \
	$(EMACS_ROOT)/src/m/intel386.h \
	$(EMACS_ROOT)/src/config.h

$(BLD)/getopt1.$(O) : \
	$(SRC)/getopt1.c \
	$(SRC)/getopt.h \
	$(SRC)/getopt_int.h \
	$(EMACS_ROOT)/src/s/ms-w32.h \
	$(EMACS_ROOT)/src/m/intel386.h \
	$(EMACS_ROOT)/src/config.h

$(BLD)/strftime.$(O) : \
	$(SRC)/strftime.c \
	$(SRC)/strftime.h \
	$(EMACS_ROOT)/nt/inc/stdbool.h \
	$(EMACS_ROOT)/src/s/ms-w32.h \
	$(EMACS_ROOT)/src/m/intel386.h \
	$(EMACS_ROOT)/src/config.h

$(BLD)/time_r.$(O) : \
	$(SRC)/time_r.c \
	$(EMACS_ROOT)/nt/inc/stdbool.h \
	$(EMACS_ROOT)/src/s/ms-w32.h \
	$(EMACS_ROOT)/src/m/intel386.h \
	$(EMACS_ROOT)/src/config.h

# The following dependencies are for supporting parallel builds, where
# we must make sure $(BLD) exists before any compilation starts.
#
$(BLD)/dtoastr.$(O) $(BLD)/getopt.$(O) $(BLD)/getopt1.$(O): stamp_BLD
$(BLD)/strftime.$(O) $(BLD)/time_r.$(O): stamp_BLD

#
# Headers we would preprocess if we could.
#
getopt.h:	getopt_.h
	$(CP) $(ALL_DEPS) $@

#
# Maintenance
#
clean:
	- $(DEL) $(COMPILER_TEMP_FILES)
	- $(DEL) getopt.h
	- $(DEL_TREE) $(OBJDIR)
	- $(DEL) stamp_BLD

distclean:	cleanall
	- $(DEL) TAGS
	- $(DEL) Makefile

maintainer-clean: distclean
	- $(DEL) getopt_.h

cleanall:	clean
	- $(DEL_TREE) obj
	- $(DEL_TREE) obj-spd
	- $(DEL_TREE) oo
	- $(DEL_TREE) oo-spd

# A dummy target to force other targets to be evaluated.
doit:

getopt_.h: getopt.in.h $(ARG_NONNULL_H)
	$(MAKE) $(MFLAGS) getopt_.h-$(SHELLTYPE)

getopt_.h-CMD: doit
	@echo getopt.in.h or $(ARG_NONNULL_H) is newer than getopt_.h.
	@echo Run "$(MAKETYPE) getopt_h" in the lib/ subdirectory.
	@echo You will need GNU Sed to be installed.
	exit -1

getopt_.h-SH: doit
	@echo getopt.in.h or $(ARG_NONNULL_H) is newer than getopt_.h.
	@echo Run '"$(MAKETYPE) getopt_h"' in the lib/ subdirectory.
	@echo You will need GNU Sed to be installed.
	exit -1

# Generating getopt_.h from getopt.in.h.
#
# To avoid requiring all end users to install Sed, we have below
# a maintainer-only target that produces getopt_.h from getopt.in.h.
# For easier maintenance, all the strings that replace the @FOO@
# placeholder are defined as Make macros below.

HAVE_GETOPT_H = HAVE_GETOPT_H
INCLUDE_NEXT = include_next
PRAGMA_SYSTEM_HEADER = \#pragma GCC system_header
PRAGMA_COLUMNS =
NEXT_GETOPT_H = <getopt.h>
ARG_NONNULL_H = ../arg-nonnull.h

getopt_h:
	- $(DEL) getopt_.h-t getopt_.h
	sed -e "s!@HAVE_GETOPT_H@!$(HAVE_GETOPT_H)!g" \
	    -e "s!@INCLUDE_NEXT@!$(INCLUDE_NEXT)!g" \
	    -e "s!@PRAGMA_SYSTEM_HEADER@!$(PRAGMA_SYSTEM_HEADER)!g" \
	    -e "s!@PRAGMA_COLUMNS@!$(PRAGMA_COLUMNS)!g" \
	    -e "s!@NEXT_GETOPT_H@!$(NEXT_GETOPT_H)!g" \
	    -e "/definition of _GL_ARG_NONNULL/r $(ARG_NONNULL_H)" \
	    -e "/^\# include_next/i # ifndef __GNUC__" \
	    -e "/^\# include_next/i # include <next_getopt.h>" \
	    -e "/^\# include_next/i # else" \
	    -e "/^\# include_next/a # endif" \
	      < getopt.in.h > getopt_.h-t
	$(CP) getopt_.h-t getopt_.h
	- $(DEL) getopt_.h-t