# Makefile definitions for building GNAT Ada application programs

# Copyright (C)2016-2023, Philip Munts dba Munts Technologies.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
#   this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

# Do not remove intermediate files

.SECONDARY:

# These targets are not files

.PHONY: ada_mk_default ada_mk_clean ada_mk_reallyclean ada_mk_distclean

# Definitions for Linux

ifeq ($(shell uname), Linux)
ifneq ($(BOARDNAME),)
ifeq ($(BOARDBASE),)
# Using MuntsOS cross-toolchain
MUNTSOS		?= /usr/local/share/muntsos
include $(MUNTSOS)/include/$(BOARDNAME).mk
endif
else
ifneq ($(wildcard default.cgpr),)
# Using default.cgpr
GNATPREFIX	:= $(shell awk '/for Driver *\("C"\)/ { print substr($$5, 2, length($$5)-6) }' default.cgpr)
endif
endif
endif

# Definitions for FreeBSD

ifeq ($(shell uname), FreeBSD)
GNAT		:= /usr/local/gcc6-aux
GNATSTRIP	:= strip
GPRBUILD	:= no
endif

# Definitions for OpenBSD

ifeq ($(shell uname), OpenBSD)
GPRBUILD	:= no
endif

# Definitions for Microsoft Windows

ifeq ($(OS), Windows_NT)
EXESUFFIX	= .exe
ifneq ($(GNAT),)
# Gnat Community or Alire or similar mingw toolchain
LDFLAGS		+= -L$(LIBSIMPLEIO)/win64
else
ifeq ($(findstring CYGWIN, $(shell uname)), CYGWIN)
# Cygwin toolchain (no gprbuild available)
GPRBUILD	:= no
LIBSIMPLEIO	:= $(shell cygpath $(LIBSIMPLEIO))
endif
endif
endif

# Definitions for MacOS X

ifeq ($(shell uname), Darwin)
ifeq ($(wildcard /opt/homebrew), /opt/homebrew)
LDFLAGS		+= -L/opt/homebrew/lib
LDFLAGS		+= -ld_classic
endif
endif

ifneq ($(GNAT),)
GNATPREFIX	:= $(GNAT)/bin/
endif

# General toolchain definitions

CFLAGS		+= -g -gnat2012
ADA_OBJ		?= $(shell pwd)/obj

# Definitions for gnatmake

GNATMAKE	?= $(GNATPREFIX)gnatmake$(EXESUFFIX)
GNATMAKEFLAGS	= -D $(ADA_OBJ)
GNATMAKECFLAGS	+= $(CFLAGS)
GNATMAKELDFLAGS	+= $(LDFLAGS)

# Definitions for other GNAT programs

GNATBIND	?= $(GNATPREFIX)gnatbind$(EXESUFFIX)
GNATLINK	?= $(GNATPREFIX)gnatlink$(EXESUFFIX)
GNATSTRIP	?= $(GNATPREFIX)strip$(EXESUFFIX)

# Definitions for gprbuild

ifneq ($(GNAT),)
GPRBUILD	?= $(GNAT)/bin/gprbuild$(EXESUFFIX)
else
GPRBUILD	?= gprbuild$(EXESUFFIX)
endif
GPRBUILDFLAGS	+= -p $(GPRBUILDCONFIG)

# Define pattern rules for building Ada programs

ifneq ($(GPRBUILD), no)
# Build with explicit Ada program project file
%: %.gpr
	$(GPRBUILD) -P$< $(GPRBUILDFLAGS) $@
	-$(GNATSTRIP) $@$(EXESUFFIX)
	chmod 755 $@$(EXESUFFIX)

ifneq ($(wildcard default.gpr),)
# Build with default Ada program project file
%:
	$(GPRBUILD) $(GPRBUILDFLAGS) $@
	-$(GNATSTRIP) $@$(EXESUFFIX)
	chmod 755 $@$(EXESUFFIX)
endif
else
# Build with gnatmake (deprecated, but sometimes necessary)
%: %.adb
	mkdir -p $(ADA_OBJ)
	$(GNATMAKE) $(GNATMAKEFLAGS) $@ -cargs $(GNATMAKECFLAGS) -largs $(GNATMAKELDFLAGS)
	-$(GNATSTRIP) $@$(EXESUFFIX)
	chmod 755 $@$(EXESUFFIX)
endif

# Default make target

ada_mk_default: default

# Remove working files

ada_mk_clean:
	rm -rf $(ADA_OBJ) *.exe *.o *.ali b~* *.stackdump

ada_mk_reallyclean: ada_mk_clean

ada_mk_distclean: ada_mk_reallyclean