#
# SPDX-License-Identifier: BSD-2-Clause
#
# Copyright (c) 2018-2020 Gavin D. Howard and contributors.
#
# 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.
#
# * Redistributions in binary form must reproduce the above copyright notice,
#   this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
#
# 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.
#
# %%WARNING%%
#
.POSIX:

VERSION = 3.2.4

SRC = %%SRC%%
OBJ = %%OBJ%%
GCDA = %%GCDA%%
GCNO = %%GCNO%%

BC_ENABLED_NAME = BC_ENABLED
BC_ENABLED = %%BC_ENABLED%%
DC_ENABLED_NAME = DC_ENABLED
DC_ENABLED = %%DC_ENABLED%%

GEN_DIR = gen
GEN = %%GEN%%
GEN_EXEC = $(GEN_DIR)/$(GEN)
GEN_C = $(GEN_DIR)/$(GEN).c

GEN_EMU = %%GEN_EMU%%

BC_LIB = $(GEN_DIR)/lib.bc
BC_LIB_C = $(GEN_DIR)/lib.c
BC_LIB_O = %%BC_LIB_O%%
BC_LIB_GCDA = $(GEN_DIR)/lib.gcda
BC_LIB_GCNO = $(GEN_DIR)/lib.gcno

BC_LIB2 = $(GEN_DIR)/lib2.bc
BC_LIB2_C = $(GEN_DIR)/lib2.c
BC_LIB2_O = %%BC_LIB2_O%%
BC_LIB2_GCDA = $(GEN_DIR)/lib2.gcda
BC_LIB2_GCNO = $(GEN_DIR)/lib2.gcno

BC_HELP = $(GEN_DIR)/bc_help.txt
BC_HELP_C = $(GEN_DIR)/bc_help.c
BC_HELP_O = %%BC_HELP_O%%
BC_HELP_GCDA = $(GEN_DIR)/bc_help.gcda
BC_HELP_GCNO = $(GEN_DIR)/bc_help.gcno

DC_HELP = $(GEN_DIR)/dc_help.txt
DC_HELP_C = $(GEN_DIR)/dc_help.c
DC_HELP_O = %%DC_HELP_O%%
DC_HELP_GCDA = $(GEN_DIR)/dc_help.gcda
DC_HELP_GCNO = $(GEN_DIR)/dc_help.gcno

BIN = bin
LOCALES = locales
EXEC_SUFFIX = %%EXECSUFFIX%%
EXEC_PREFIX = %%EXECPREFIX%%

BC = bc
DC = dc
BC_EXEC = $(BIN)/$(EXEC_PREFIX)$(BC)
DC_EXEC = $(BIN)/$(EXEC_PREFIX)$(DC)

LIB = libbcl
LIB_NAME = $(LIB).a
LIBBC = $(BIN)/$(LIB_NAME)
BCL = bcl
BCL_TEST = $(BIN)/$(BCL)
BCL_TEST_C = tests/$(BCL).c

MANUALS = manuals
BC_MANPAGE_NAME = $(EXEC_PREFIX)$(BC)$(EXEC_SUFFIX).1
BC_MANPAGE = $(MANUALS)/$(BC).1
BC_MD = $(BC_MANPAGE).md
DC_MANPAGE_NAME = $(EXEC_PREFIX)$(DC)$(EXEC_SUFFIX).1
DC_MANPAGE = $(MANUALS)/$(DC).1
DC_MD = $(DC_MANPAGE).md
BCL_MANPAGE_NAME = bcl.3
BCL_MANPAGE = $(MANUALS)/$(BCL_MANPAGE_NAME)
BCL_MD = $(BCL_MANPAGE).md

MANPAGE_INSTALL_ARGS = -Dm644
BINARY_INSTALL_ARGS = -Dm755

BCL_HEADER_NAME = bcl.h
BCL_HEADER = include/$(BCL_HEADER_NAME)

%%DESTDIR%%
BINDIR = %%BINDIR%%
INCLUDEDIR = %%INCLUDEDIR%%
LIBDIR = %%LIBDIR%%
MAN1DIR = %%MAN1DIR%%
MAN3DIR = %%MAN3DIR%%
MAIN_EXEC = $(EXEC_PREFIX)$(%%MAIN_EXEC%%)$(EXEC_SUFFIX)
EXEC = $(%%EXEC%%)
NLSPATH = %%NLSPATH%%

BC_ENABLE_LIBRARY = %%LIBRARY%%

BC_ENABLE_HISTORY = %%HISTORY%%
BC_ENABLE_EXTRA_MATH_NAME = BC_ENABLE_EXTRA_MATH
BC_ENABLE_EXTRA_MATH = %%EXTRA_MATH%%
BC_ENABLE_NLS = %%NLS%%
BC_ENABLE_PROMPT = %%PROMPT%%
BC_LONG_BIT = %%LONG_BIT%%

RM = rm
MKDIR = mkdir

INSTALL = ./exec-install.sh
SAFE_INSTALL = ./safe-install.sh
LINK = ./link.sh
MANPAGE = ./manpage.sh
KARATSUBA = ./karatsuba.py
LOCALE_INSTALL = ./locale_install.sh
LOCALE_UNINSTALL = ./locale_uninstall.sh

VALGRIND_ARGS = --error-exitcode=100 --leak-check=full --show-leak-kinds=all --errors-for-leak-kinds=all

BC_NUM_KARATSUBA_LEN = %%KARATSUBA_LEN%%

CPPFLAGS1 = -D$(BC_ENABLED_NAME)=$(BC_ENABLED) -D$(DC_ENABLED_NAME)=$(DC_ENABLED)
CPPFLAGS2 = $(CPPFLAGS1) -I./include/ -DVERSION=$(VERSION) %%LONG_BIT_DEFINE%%
CPPFLAGS3 = $(CPPFLAGS2) -DEXECPREFIX=$(EXEC_PREFIX) -DMAINEXEC=$(MAIN_EXEC)
CPPFLAGS4 = $(CPPFLAGS3) -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700
CPPFLAGS5 = $(CPPFLAGS4) -DBC_NUM_KARATSUBA_LEN=$(BC_NUM_KARATSUBA_LEN)
CPPFLAGS6 = $(CPPFLAGS5) -DBC_ENABLE_NLS=$(BC_ENABLE_NLS) -DBC_ENABLE_PROMPT=$(BC_ENABLE_PROMPT)
CPPFLAGS7 = $(CPPFLAGS6) -D$(BC_ENABLE_EXTRA_MATH_NAME)=$(BC_ENABLE_EXTRA_MATH)
CPPFLAGS = $(CPPFLAGS7) -DBC_ENABLE_HISTORY=$(BC_ENABLE_HISTORY) -DBC_ENABLE_LIBRARY=$(BC_ENABLE_LIBRARY)
CFLAGS = $(CPPFLAGS) %%CPPFLAGS%% %%CFLAGS%%
LDFLAGS = %%LDFLAGS%%

HOSTCFLAGS = %%HOSTCFLAGS%%

CC = %%CC%%
HOSTCC = %%HOSTCC%%

BC_LIB_C_ARGS = bc_lib bc_lib_name $(BC_ENABLED_NAME) 1
BC_LIB2_C_ARGS = bc_lib2 bc_lib2_name "$(BC_ENABLED_NAME) && $(BC_ENABLE_EXTRA_MATH_NAME)" 1

OBJS = $(BC_HELP_O) $(DC_HELP_O) $(BC_LIB_O) $(BC_LIB2_O) $(OBJ)
OBJ_TARGETS = $(DC_HELP_O) $(BC_HELP_O) $(BC_LIB_O) $(BC_LIB2_O) $(OBJ)

.c.o:
	$(CC) $(CFLAGS) -o $@ -c $<

all: %%ALL_PREREQ%%

execs: make_bin $(OBJ_TARGETS)
	$(CC) $(CFLAGS) $(OBJS) $(LDFLAGS) -o $(EXEC)
	%%LINK%%

library: make_bin $(OBJ) $(BC_LIB_O) $(BC_LIB2_O)
	ar -r -cu $(LIBBC) $(BC_LIB_O) $(BC_LIB2_O) $(OBJ)

$(GEN_EXEC):
	%%GEN_EXEC_TARGET%%

$(BC_LIB_C): $(GEN_EXEC) $(BC_LIB)
	$(GEN_EMU) $(GEN_EXEC) $(BC_LIB) $(BC_LIB_C) $(BC_LIB_C_ARGS)

$(BC_LIB2_C): $(GEN_EXEC) $(BC_LIB2)
	$(GEN_EMU) $(GEN_EXEC) $(BC_LIB2) $(BC_LIB2_C) $(BC_LIB2_C_ARGS)

$(BC_HELP_C): $(GEN_EXEC) $(BC_HELP)
	$(GEN_EMU) $(GEN_EXEC) $(BC_HELP) $(BC_HELP_C) bc_help "" $(BC_ENABLED_NAME)

$(DC_HELP_C): $(GEN_EXEC) $(DC_HELP)
	$(GEN_EMU) $(GEN_EXEC) $(DC_HELP) $(DC_HELP_C) dc_help "" $(DC_ENABLED_NAME)

make_bin:
	$(MKDIR) -p $(BIN)

help:
	@printf 'available targets:\n'
	@printf '\n'
	@printf '    all (default)   builds %%EXECUTABLES%%\n'
	@printf '    check           alias for `make test`\n'
	@printf '    clean           removes all build files\n'
	@printf '    clean_config    removes all build files as well as the generated Makefile\n'
	@printf '    clean_tests     removes all build files, the generated Makefile,\n'
	@printf '                    and generated tests\n'
	@printf '    install         installs binaries to "%s%s"\n' "$(DESTDIR)" "$(BINDIR)"
	@printf '                    and (if enabled) manpages to "%s%s"\n' "$(DESTDIR)" "$(MAN1DIR)"
	@printf '    karatsuba       runs the karatsuba script (requires Python 3)\n'
	@printf '    karatsuba_test  runs the karatsuba script while running tests\n'
	@printf '                    (requires Python 3)\n'
	@printf '    uninstall       uninstalls binaries from "%s%s"\n' "$(DESTDIR)" "$(BINDIR)"
	@printf '                    and (if enabled) manpages from "%s%s"\n' "$(DESTDIR)" "$(MAN1DIR)"
	@printf '    test            runs the test suite\n'
	@printf '    test_bc         runs the bc test suite, if bc has been built\n'
	@printf '    test_dc         runs the dc test suite, if dc has been built\n'
	@printf '    time_test       runs the test suite, displaying times for some things\n'
	@printf '    time_test_bc    runs the bc test suite, displaying times for some things\n'
	@printf '    time_test_dc    runs the dc test suite, displaying times for some things\n'
	@printf '    timeconst       runs the test on the Linux timeconst.bc script,\n'
	@printf '                    if it exists and bc has been built\n'
	@printf '    valgrind        runs the test suite through valgrind\n'
	@printf '    valgrind_bc     runs the bc test suite, if bc has been built,\n'
	@printf '                    through valgrind\n'
	@printf '    valgrind_dc     runs the dc test suite, if dc has been built,\n'
	@printf '                    through valgrind\n'

check: test

test: %%TESTS%%

test_bc:
	%%BC_TEST%%

test_dc:
	%%DC_TEST%%

time_test: time_test_bc timeconst time_test_dc

time_test_bc:
	%%BC_TIME_TEST%%

time_test_dc:
	%%DC_TIME_TEST%%

timeconst:
	%%TIMECONST%%

library_test: library
	$(CC) $(CFLAGS) $(BCL_TEST_C) $(LIBBC) -o $(BCL_TEST)

test_library: library_test
	$(BCL_TEST)

valgrind: valgrind_bc valgrind_dc

valgrind_bc:
	%%VG_BC_TEST%%

valgrind_dc:
	%%VG_DC_TEST%%

karatsuba:
	%%KARATSUBA%%

karatsuba_test:
	%%KARATSUBA_TEST%%

coverage_output:
	%%COVERAGE_OUTPUT%%

coverage:%%COVERAGE_PREREQS%%

version:
	@printf '%s' "$(VERSION)"

libcname:
	@printf '%s' "$(BC_LIB_C)"

extra_math:
	@printf '%s' "$(BC_ENABLE_EXTRA_MATH)"

manpages:
	$(MANPAGE) bc
	$(MANPAGE) dc
	$(MANPAGE) bcl

clean_gen:
	@$(RM) -f $(GEN_EXEC)

clean:%%CLEAN_PREREQS%%
	@printf 'Cleaning files...\n'
	@$(RM) -f $(OBJ)
	@$(RM) -f $(BC_EXEC)
	@$(RM) -f $(DC_EXEC)
	@$(RM) -fr $(BIN)
	@$(RM) -f $(LOCALES)/*.cat
	@$(RM) -f $(BC_LIB_C) $(BC_LIB_O)
	@$(RM) -f $(BC_LIB2_C) $(BC_LIB2_O)
	@$(RM) -f $(BC_HELP_C) $(BC_HELP_O)
	@$(RM) -f $(DC_HELP_C) $(DC_HELP_O)

clean_config: clean
	@printf 'Cleaning config...\n'
	@$(RM) -f Makefile
	@$(RM) -f $(BC_MD) $(DC_MD)
	@$(RM) -f $(BC_MANPAGE) $(DC_MANPAGE)

clean_coverage:
	@printf 'Cleaning coverage files...\n'
	@$(RM) -f *.gcov
	@$(RM) -f *.html
	@$(RM) -f *.gcda *.gcno
	@$(RM) -f *.profraw
	@$(RM) -f $(GCDA) $(GCNO)
	@$(RM) -f $(BC_GCDA) $(BC_GCNO)
	@$(RM) -f $(DC_GCDA) $(DC_GCNO)
	@$(RM) -f $(HISTORY_GCDA) $(HISTORY_GCNO)
	@$(RM) -f $(RAND_GCDA) $(RAND_GCNO)
	@$(RM) -f $(BC_LIB_GCDA) $(BC_LIB_GCNO)
	@$(RM) -f $(BC_LIB2_GCDA) $(BC_LIB2_GCNO)
	@$(RM) -f $(BC_HELP_GCDA) $(BC_HELP_GCNO)
	@$(RM) -f $(DC_HELP_GCDA) $(DC_HELP_GCNO)

clean_tests: clean clean_config clean_coverage
	@printf 'Cleaning test files...\n'
	@$(RM) -f tests/bc/parse.txt tests/bc/parse_results.txt
	@$(RM) -f tests/bc/print.txt tests/bc/print_results.txt
	@$(RM) -f tests/bc/bessel.txt tests/bc/bessel_results.txt
	@$(RM) -f tests/bc/scripts/bessel.txt
	@$(RM) -f tests/bc/scripts/parse.txt
	@$(RM) -f tests/bc/scripts/print.txt
	@$(RM) -f tests/bc/scripts/add.txt
	@$(RM) -f tests/bc/scripts/divide.txt
	@$(RM) -f tests/bc/scripts/multiply.txt
	@$(RM) -f tests/bc/scripts/subtract.txt
	@$(RM) -f tests/dc/scripts/prime.txt tests/dc/scripts/stream.txt
	@$(RM) -f .log_*.txt
	@$(RM) -f .math.txt .results.txt .ops.txt
	@$(RM) -f .test.txt
	@$(RM) -f tags .gdbbreakpoints .gdb_history .gdbsetup
	@$(RM) -f cscope.*
	@$(RM) -f bc.old

install_locales:
	%%INSTALL_LOCALES%%

install_bc_manpage:
	$(SAFE_INSTALL) $(MANPAGE_INSTALL_ARGS) $(BC_MANPAGE) $(DESTDIR)$(MAN1DIR)/$(BC_MANPAGE_NAME)

install_dc_manpage:
	$(SAFE_INSTALL) $(MANPAGE_INSTALL_ARGS) $(DC_MANPAGE) $(DESTDIR)$(MAN1DIR)/$(DC_MANPAGE_NAME)

install_bcl_manpage:
	$(SAFE_INSTALL) $(MANPAGE_INSTALL_ARGS) $(BCL_MANPAGE) $(DESTDIR)$(MAN3DIR)/$(BCL_MANPAGE_NAME)

install_bcl_header:
	$(SAFE_INSTALL) $(MANPAGE_INSTALL_ARGS) $(BCL_HEADER) $(DESTDIR)$(INCLUDEDIR)/$(BCL_HEADER_NAME)

install_execs:
	$(INSTALL) $(DESTDIR)$(BINDIR) "$(EXEC_SUFFIX)"

install_library:
	$(SAFE_INSTALL) $(BINARY_INSTALL_ARGS) $(LIBBC) $(DESTDIR)$(LIBDIR)/$(LIB_NAME)

install:%%INSTALL_LOCALES_PREREQS%%%%INSTALL_MAN_PREREQS%%%%INSTALL_PREREQS%%

uninstall_locales:
	$(LOCALE_UNINSTALL) $(NLSPATH) $(MAIN_EXEC) $(DESTDIR)

uninstall_bc_manpage:
	$(RM) -f $(DESTDIR)$(MAN1DIR)/$(BC_MANPAGE_NAME)

uninstall_bc:
	$(RM) -f $(DESTDIR)$(BINDIR)/$(EXEC_PREFIX)$(BC)$(EXEC_SUFFIX)

uninstall_dc_manpage:
	$(RM) -f $(DESTDIR)$(MAN1DIR)/$(DC_MANPAGE_NAME)

uninstall_dc:
	$(RM) -f $(DESTDIR)$(BINDIR)/$(EXEC_PREFIX)$(DC)$(EXEC_SUFFIX)

uninstall_library:
	$(RM) -f $(DESTDIR)$(LIBDIR)/$(LIB_NAME)

uninstall_bcl_header:
	$(RM) -f $(DESTDIR)$(INCLUDEDIR)/$(BCL_HEADER_NAME)

uninstall_bcl_manpage:
	$(RM) -f $(DESTDIR)$(MAN3DIR)/$(BCL_MANPAGE_NAME)

uninstall:%%UNINSTALL_LOCALES_PREREQS%%%%UNINSTALL_MAN_PREREQS%%%%UNINSTALL_PREREQS%%