#
# FreeType 2 library sub-Makefile
#
# Copyright (C) 1996-2023 by
# David Turner, Robert Wilhelm, and Werner Lemberg.
#
# This file is part of the FreeType project, and may only be used, modified,
# and distributed under the terms of the FreeType project license,
# LICENSE.TXT. By continuing to use, modify, or distribute this file you
# indicate that you have read the license and understand and accept it
# fully.
# DO NOT INVOKE THIS MAKEFILE DIRECTLY! IT IS MEANT TO BE INCLUDED BY
# OTHER MAKEFILES.
# The following variables (set by other Makefile components, in the
# environment, or on the command line) are used:
#
# PLATFORM_DIR The architecture-dependent directory,
# e.g., `$(TOP_DIR)/builds/unix'. Added to INCLUDES also.
#
# OBJ_DIR The directory in which object files are created.
#
# LIB_DIR The directory in which the library is created.
#
# DOC_DIR The directory in which the API reference is created.
#
# INCLUDES A list of directories to be included additionally.
#
# DEVEL_DIR Development directory which is added to the INCLUDES
# variable before the standard include directories.
#
# CFLAGS Compilation flags. This overrides the default settings
# in the platform-specific configuration files.
#
# FTSYS_SRC If set, its value is used as the name of a replacement
# file for `src/base/ftsystem.c'.
#
# FTDEBUG_SRC If set, its value is used as the name of a replacement
# file for `src/base/ftdebug.c'. [For a normal build, this
# file does nothing.]
#
# FTMODULE_H The file which contains the list of module classes for
# the current build. Usually, this is automatically
# created by `modules.mk'.
#
# BASE_OBJ_S
# BASE_OBJ_M A list of base objects (for single object and multiple
# object builds, respectively). Set up in
# `src/base/rules.mk'.
#
# BASE_EXT_OBJ A list of base extension objects. Set up in
# `src/base/rules.mk'.
#
# DRV_OBJ_S
# DRV_OBJ_M A list of driver objects (for single object and multiple
# object builds, respectively). Set up cumulatively in
# `src/<driver>/rules.mk'.
#
# CLEAN
# DISTCLEAN The sub-makefiles can append additional stuff to these two
# variables which is to be removed for the `clean' resp.
# `distclean' target.
#
# TOP_DIR, SEP,
# COMPILER_SEP,
# LIBRARY, CC,
# A, I, O, T Check `config.mk' for details.
# The targets `objects' and `library' are defined at the end of this
# Makefile after all other rules have been included.
#
.PHONY: single multi objects library refdoc refdoc-venv
# default target -- build single objects and library
#
single: objects library
# `multi' target -- build multiple objects and library
#
multi: objects library
# The FreeType source directory, usually `./src'.
#
SRC_DIR := $(TOP_DIR)/src
# The directory where the base layer components are placed, usually
# `./src/base'.
#
BASE_DIR := $(SRC_DIR)/base
# Other derived directories.
#
PUBLIC_DIR := $(TOP_DIR)/include/freetype
INTERNAL_DIR := $(PUBLIC_DIR)/internal
SERVICES_DIR := $(INTERNAL_DIR)/services
CONFIG_DIR := $(PUBLIC_DIR)/config
# The documentation directory.
#
DOC_DIR ?= $(TOP_DIR)/docs
# The final name of the library file.
#
PROJECT_LIBRARY := $(LIB_DIR)/$(LIBRARY).$A
# include paths
#
# IMPORTANT NOTE: The architecture-dependent directory must ALWAYS be placed
# before the standard include list. Porters are then able to
# put their own version of some of the FreeType components
# in the `builds/<system>' directory, as these files will
# override the default sources.
#
INCLUDES := $(subst /,$(COMPILER_SEP),$(OBJ_DIR) \
$(DEVEL_DIR) \
$(PLATFORM_DIR) \
$(TOP_DIR)/include)
INCLUDE_FLAGS := $(INCLUDES:%=$I%)
# For a development build, we assume that the external library dependencies
# defined in `ftoption.h' are fulfilled, so we directly access the necessary
# include directory information using `pkg-config'.
#
ifdef DEVEL_DIR
INCLUDE_FLAGS += $(shell pkg-config --cflags libpng)
INCLUDE_FLAGS += $(shell pkg-config --cflags harfbuzz)
INCLUDE_FLAGS += $(shell pkg-config --cflags libbrotlidec)
endif
# C flags used for the compilation of an object file. This must include at
# least the paths for the `base' and `builds/<system>' directories;
# debug/optimization/warning flags + ansi compliance if needed.
#
# $(INCLUDE_FLAGS) should come before $(CFLAGS) to avoid problems with
# old FreeType versions.
#
# Note what we also define the macro FT2_BUILD_LIBRARY when building
# FreeType. This is required to let our sources include the internal
# headers (something forbidden by clients).
#
# `CPPFLAGS' might be specified by the user in the environment.
#
FT_CFLAGS = $(CPPFLAGS) \
$(CFLAGS) \
$DFT2_BUILD_LIBRARY
FT_COMPILE := $(CC) $(ANSIFLAGS) $(INCLUDE_FLAGS) $(FT_CFLAGS)
# Include the `exports' rules file.
#
include $(TOP_DIR)/builds/exports.mk
# Initialize the list of objects.
#
OBJECTS_LIST :=
# Define $(PUBLIC_H) as the list of all public header files located in
# `$(TOP_DIR)/include/freetype'. $(INTERNAL_H), and $(CONFIG_H) are defined
# similarly. $(FTOPTION_H) is the option file used in the compilation.
#
# This is used to simplify the dependency rules -- if one of these files
# changes, the whole library is recompiled.
#
ifneq ($(wildcard $(OBJ_DIR)/ftoption.h),)
FTOPTION_H := $(OBJ_DIR)/ftoption.h
else ifneq ($(wildcard $(PLATFORM_DIR)/ftoption.h),)
FTOPTION_H := $(PLATFORM_DIR)/ftoption.h
endif
PUBLIC_H := $(wildcard $(PUBLIC_DIR)/*.h)
INTERNAL_H := $(wildcard $(INTERNAL_DIR)/*.h) \
$(wildcard $(SERVICES_DIR)/*.h)
CONFIG_H := $(wildcard $(CONFIG_DIR)/*.h) \
$(wildcard $(PLATFORM_DIR)/config/*.h) \
$(FTMODULE_H) \
$(FTOPTION_H)
DEVEL_H := $(wildcard $(TOP_DIR)/devel/*.h)
FREETYPE_H := $(PUBLIC_H) $(INTERNAL_H) $(CONFIG_H) $(DEVEL_H)
# ftsystem component
#
FTSYS_SRC ?= $(BASE_DIR)/ftsystem.c
FTSYS_OBJ := $(OBJ_DIR)/ftsystem.$O
OBJECTS_LIST += $(FTSYS_OBJ)
$(FTSYS_OBJ): $(FTSYS_SRC) $(FREETYPE_H)
$(FT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
# ftdebug component
#
FTDEBUG_SRC ?= $(BASE_DIR)/ftdebug.c
FTDEBUG_OBJ := $(OBJ_DIR)/ftdebug.$O
OBJECTS_LIST += $(FTDEBUG_OBJ)
$(FTDEBUG_OBJ): $(FTDEBUG_SRC) $(FREETYPE_H)
$(FT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
# Include all rule files from FreeType components.
#
include $(SRC_DIR)/base/rules.mk
include $(patsubst %,$(SRC_DIR)/%/rules.mk,$(MODULES))
include $(SRC_DIR)/dlg/rules.mk
# ftinit component
#
# The C source `ftinit.c' contains the FreeType initialization routines.
# It is able to automatically register one or more drivers when the API
# function FT_Init_FreeType() is called.
#
# The set of initial drivers is determined by the driver Makefiles
# includes above. Each driver Makefile updates the FTINIT_xxx lists
# which contain additional include paths and macros used to compile the
# single `ftinit.c' source.
#
FTINIT_SRC := $(BASE_DIR)/ftinit.c
FTINIT_OBJ := $(OBJ_DIR)/ftinit.$O
OBJECTS_LIST += $(FTINIT_OBJ)
$(FTINIT_OBJ): $(FTINIT_SRC) $(FREETYPE_H)
$(FT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
# ftver component
#
# The VERSIONINFO resource `ftver.rc' contains version and copyright
# to be compiled by windres and tagged into DLL usually.
#
ifneq ($(RC),)
FTVER_SRC := $(BASE_DIR)/ftver.rc
FTVER_OBJ := $(OBJ_DIR)/ftver.$O
OBJECTS_LIST += $(FTVER_OBJ)
$(FTVER_OBJ): $(FTVER_SRC)
$(RC) -o $@ $<
endif
# All FreeType library objects.
#
OBJ_M := $(BASE_OBJ_M) $(BASE_EXT_OBJ) $(DRV_OBJS_M) $(DLG_OBJS_M)
OBJ_S := $(BASE_OBJ_S) $(BASE_EXT_OBJ) $(DRV_OBJS_S) $(DLG_OBJS_S)
# The target `multi' on the Make command line indicates that we want to
# compile each source file independently.
#
# Otherwise, each module/driver is compiled in a single object file through
# source file inclusion (see `src/base/ftbase.c' or
# `src/truetype/truetype.c' for examples).
#
BASE_OBJECTS := $(OBJECTS_LIST)
ifneq ($(findstring multi,$(MAKECMDGOALS)),)
OBJECTS_LIST += $(OBJ_M)
else
OBJECTS_LIST += $(OBJ_S)
endif
objects: $(OBJECTS_LIST)
library: $(PROJECT_LIBRARY)
# Run `docwriter' in the current Python environment.
#
PYTHON ?= python
refdoc:
@echo Running docwriter...
$(PYTHON) -m docwriter \
--prefix=ft2 \
--title=FreeType-$(version) \
--site=reference \
--output=$(DOC_DIR) \
$(PUBLIC_DIR)/*.h \
$(PUBLIC_DIR)/config/*.h \
$(PUBLIC_DIR)/cache/*.h
@echo Building static site...
cd $(DOC_DIR) && mkdocs build
@echo Done.
# Variables for running `refdoc' with Python's `virtualenv'. The
# environment is created in `DOC_DIR/env' and is gitignored.
#
# We still need to cd into `DOC_DIR' to build `mkdocs' because paths in
# `mkdocs.yml' are relative to the current working directory.
#
VENV_NAME := env
VENV_DIR := $(DOC_DIR)$(SEP)$(VENV_NAME)
ENV_PYTHON := $(VENV_DIR)$(SEP)$(BIN)$(SEP)$(PYTHON)
refdoc-venv:
@echo Setting up virtualenv for Python...
virtualenv --python=$(PYTHON) $(VENV_DIR)
@echo Installing docwriter...
$(ENV_PYTHON) -m pip install docwriter
@echo Running docwriter...
$(ENV_PYTHON) -m docwriter \
--prefix=ft2 \
--title=FreeType-$(version) \
--site=reference \
--output=$(DOC_DIR) \
$(PUBLIC_DIR)/*.h \
$(PUBLIC_DIR)/config/*.h \
$(PUBLIC_DIR)/cache/*.h
@echo Building static site...
cd $(DOC_DIR) && $(VENV_NAME)$(SEP)$(BIN)$(SEP)python -m mkdocs build
@echo Done.
.PHONY: clean_project_std distclean_project_std
# Standard cleaning and distclean rules. These are not accepted
# on all systems though.
#
clean_project_std:
-$(DELETE) $(BASE_OBJECTS) $(OBJ_M) $(OBJ_S) $(CLEAN)
distclean_project_std: clean_project_std
-$(DELETE) $(PROJECT_LIBRARY)
-$(DELETE) *.orig *~ core *.core $(DISTCLEAN)
.PHONY: clean_project_dos distclean_project_dos
# The Dos command shell does not support very long list of arguments, so
# we are stuck with wildcards.
#
# Don't break the command lines with \; this prevents the "del" command from
# working correctly on Win9x.
#
clean_project_dos:
-$(DELETE) $(subst /,$(SEP),$(OBJ_DIR)/*.$O $(CLEAN) $(NO_OUTPUT))
distclean_project_dos: clean_project_dos
-$(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY) $(DISTCLEAN) $(NO_OUTPUT))
.PHONY: remove_config_mk remove_ftmodule_h
# Remove configuration file (used for distclean).
#
remove_config_mk:
-$(DELETE) $(subst /,$(SEP),$(CONFIG_MK) $(NO_OUTPUT))
# Remove module list (used for distclean).
#
remove_ftmodule_h:
-$(DELETE) $(subst /,$(SEP),$(FTMODULE_H) $(NO_OUTPUT))
.PHONY: clean distclean
# The `config.mk' file must define `clean_project' and `distclean_project'.
# Implementations may use to relay these to either the `std' or `dos'
# versions from above, or simply provide their own implementation.
#
clean: clean_project
distclean: distclean_project remove_config_mk remove_ftmodule_h
-$(DELETE) $(subst /,$(SEP),$(DOC_DIR)/*.html $(NO_OUTPUT))
# EOF
