# $Id: GNUmakefile.in 46 2023-04-21 12:49:16Z nishi $
# Nuke built-in rules and variables
override MAKEFLAGS += -rR

# Misc autoconf variable imports.
override SRCDIR := @SRCDIR@
override BUILDDIR := @BUILDDIR@
override PACKAGE_VERSION := @PACKAGE_VERSION@
override PACKAGE_TARNAME := @PACKAGE_TARNAME@
override OUTPUT := bin/$(PACKAGE_TARNAME)
override WERROR_FLAG := @WERROR_FLAG@
override DEFAULT_CFLAGS := @CFLAGS@
override DEFAULT_CPPFLAGS := @CPPFLAGS@
override DEFAULT_LDFLAGS := @LDFLAGS@
override DEFAULT_LIBS := @LIBS@

# Autoconf dir variables.
override prefix := @prefix@
override exec_prefix := @exec_prefix@
override bindir := @bindir@
override sysconfdir := @sysconfdir@
override localstatedir := @localstatedir@

# Macros to make our build system still work from within paths with spaces
# or other special characters.
override SPACE := $(subst ,, )
MKESCAPE = $(subst $(SPACE),\ ,$(1))
SHESCAPE = $(subst ','\'',$(1))
OBJESCAPE = $(subst .a ,.a' ',$(subst .o ,.o' ',$(call SHESCAPE,$(1))))

# File lists.
override CFILES := \
    src/main.c \
    src/bpkg/refresh.c \
    src/bpkg/install.c \
    src/bpkg/util.c \
    src/bpkg/update.c \
    src/bpkg/remove.c \
    src/bpkg/list.c \
    src/bpkg/sha512.c \
    src/bpkg/keep.c \
    src/bpkg/unkeep.c \
    src/bpkg/clean.c
override OBJ := $(addprefix $(call MKESCAPE,$(BUILDDIR))/,$(CFILES:.c=.o))
override HEADER_DEPS := $(CFILES:.c=.d)

# DEFAULT_VAR definition.
define DEFAULT_VAR =
    ifeq ($(origin $1),default)
        override $(1) := $(2)
    endif
    ifeq ($(origin $1),undefined)
        override $(1) := $(2)
    endif
endef

# Overridable generator executables.
$(eval $(call DEFAULT_VAR,CC,@CC@))

# Non-overridable generator executables.
override NATIVE_STRIP := @NATIVE_STRIP@
override MKDIR_P := @MKDIR_P@
override INSTALL := @INSTALL@
override INSTALL_PROGRAM := @INSTALL_PROGRAM@

# User command flags.
$(eval $(call DEFAULT_VAR,CFLAGS,$(DEFAULT_CFLAGS)))
$(eval $(call DEFAULT_VAR,CPPFLAGS,$(DEFAULT_CPPFLAGS)))
$(eval $(call DEFAULT_VAR,LDFLAGS,$(DEFAULT_LDFLAGS)))
$(eval $(call DEFAULT_VAR,LIBS,$(DEFAULT_LIBS)))

# Needed command flags.
override CFLAGS += \
    -Wall \
    -Wextra \
    $(WERROR_FLAG) \
    -std=c89

override CPPFLAGS := \
    -I'$(call SHESCAPE,$(SRCDIR))'/include \
    $(CPPFLAGS) \
    -DPREFIX=\"$(prefix)\" \
    -DVARDIR=\"$(localstatedir)\"\
    -DETCDIR=\"$(sysconfdir)\"\
    -MMD \
    -MP

# Default target.
.PHONY: all
all: $(OUTPUT)

# Link rules for the final executable.
$(OUTPUT): $(OBJ)
	$(MKDIR_P) bin
	$(CC) $(CFLAGS) $(LDFLAGS) '$(call OBJESCAPE,$^)' $(LIBS) -o $@

# Include header dependencies.
-include $(HEADER_DEPS)

# Compilation rules for *.c files.
$(call MKESCAPE,$(BUILDDIR))/%.o: $(call MKESCAPE,$(SRCDIR))/%.c
	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
	$(CC) $(CFLAGS) $(CPPFLAGS) -c '$(call SHESCAPE,$<)' -o '$(call SHESCAPE,$@)'

# Remove object files and the final executable.
.PHONY: clean
clean:
	rm -rf bin $(OBJ) $(HEADER_DEPS)

# Remove files generated by configure.
.PHONY: distclean
distclean: clean
	rm -rf config.log config.status GNUmakefile

# Remove ALL generated files.
.PHONY: maintainer-clean
maintainer-clean: distclean
	cd '$(call SHESCAPE,$(SRCDIR))' && rm -rf configure build-aux *'~' autom4te.cache

# Install files and executables to the final locations.
.PHONY: install
install: all
	$(INSTALL) -d '$(call SHESCAPE,$(DESTDIR)$(bindir))'
	$(INSTALL_PROGRAM) $(OUTPUT) '$(call SHESCAPE,$(DESTDIR)$(bindir))/'

# Install and strip executables.
.PHONY: install-strip
install-strip: install
	$(NATIVE_STRIP) '$(call SHESCAPE,$(DESTDIR)$(bindir))'/"$$(basename '$(OUTPUT)')"

# Uninstall previously installed files and executables.
.PHONY: uninstall
uninstall:
	rm -f '$(call SHESCAPE,$(DESTDIR)$(bindir))'/"$$(basename '$(OUTPUT)')"