modules/freetype2/builds/freetype.mk

   1 #
   2 # FreeType 2 library sub-Makefile
   3 #
   4
   5
   6 # Copyright (C) 1996-2022 by
   7 # David Turner, Robert Wilhelm, and Werner Lemberg.
   8 #
   9 # This file is part of the FreeType project, and may only be used, modified,
  10 # and distributed under the terms of the FreeType project license,
  11 # LICENSE.TXT.  By continuing to use, modify, or distribute this file you
  12 # indicate that you have read the license and understand and accept it
  13 # fully.
  14
  15
  16 # DO NOT INVOKE THIS MAKEFILE DIRECTLY!  IT IS MEANT TO BE INCLUDED BY
  17 # OTHER MAKEFILES.
  18
  19
  20 # The following variables (set by other Makefile components, in the
  21 # environment, or on the command line) are used:
  22 #
  23 #   PLATFORM_DIR   The architecture-dependent directory,
  24 #                  e.g., `$(TOP_DIR)/builds/unix'.  Added to INCLUDES also.
  25 #
  26 #   OBJ_DIR        The directory in which object files are created.
  27 #
  28 #   LIB_DIR        The directory in which the library is created.
  29 #
  30 #   DOC_DIR        The directory in which the API reference is created.
  31 #
  32 #   INCLUDES       A list of directories to be included additionally.
  33 #
  34 #   DEVEL_DIR      Development directory which is added to the INCLUDES
  35 #                  variable before the standard include directories.
  36 #
  37 #   CFLAGS         Compilation flags.  This overrides the default settings
  38 #                  in the platform-specific configuration files.
  39 #
  40 #   FTSYS_SRC      If set, its value is used as the name of a replacement
  41 #                  file for `src/base/ftsystem.c'.
  42 #
  43 #   FTDEBUG_SRC    If set, its value is used as the name of a replacement
  44 #                  file for `src/base/ftdebug.c'.  [For a normal build, this
  45 #                  file does nothing.]
  46 #
  47 #   FTMODULE_H     The file which contains the list of module classes for
  48 #                  the current build.  Usually, this is automatically
  49 #                  created by `modules.mk'.
  50 #
  51 #   BASE_OBJ_S
  52 #   BASE_OBJ_M     A list of base objects (for single object and multiple
  53 #                  object builds, respectively).  Set up in
  54 #                  `src/base/rules.mk'.
  55 #
  56 #   BASE_EXT_OBJ   A list of base extension objects.  Set up in
  57 #                  `src/base/rules.mk'.
  58 #
  59 #   DRV_OBJ_S
  60 #   DRV_OBJ_M      A list of driver objects (for single object and multiple
  61 #                  object builds, respectively).  Set up cumulatively in
  62 #                  `src/<driver>/rules.mk'.
  63 #
  64 #   CLEAN
  65 #   DISTCLEAN      The sub-makefiles can append additional stuff to these two
  66 #                  variables which is to be removed for the `clean' resp.
  67 #                  `distclean' target.
  68 #
  69 #   TOP_DIR, SEP,
  70 #   COMPILER_SEP,
  71 #   LIBRARY, CC,
  72 #   A, I, O, T     Check `config.mk' for details.
  73
  74
  75 # The targets `objects' and `library' are defined at the end of this
  76 # Makefile after all other rules have been included.
  77 #
  78 .PHONY: single multi objects library refdoc refdoc-venv
  79
  80 # default target -- build single objects and library
  81 #
  82 single: objects library
  83
  84 # `multi' target -- build multiple objects and library
  85 #
  86 multi: objects library
  87
  88
  89 # The FreeType source directory, usually `./src'.
  90 #
  91 SRC_DIR := $(TOP_DIR)/src
  92
  93 # The directory where the base layer components are placed, usually
  94 # `./src/base'.
  95 #
  96 BASE_DIR := $(SRC_DIR)/base
  97
  98 # Other derived directories.
  99 #
 100 PUBLIC_DIR   := $(TOP_DIR)/include/freetype
 101 INTERNAL_DIR := $(PUBLIC_DIR)/internal
 102 SERVICES_DIR := $(INTERNAL_DIR)/services
 103 CONFIG_DIR   := $(PUBLIC_DIR)/config
 104
 105 # The documentation directory.
 106 #
 107 DOC_DIR ?= $(TOP_DIR)/docs
 108
 109 # The final name of the library file.
 110 #
 111 PROJECT_LIBRARY := $(LIB_DIR)/$(LIBRARY).$A
 112
 113
 114 # include paths
 115 #
 116 # IMPORTANT NOTE: The architecture-dependent directory must ALWAYS be placed
 117 #                 before the standard include list.  Porters are then able to
 118 #                 put their own version of some of the FreeType components
 119 #                 in the `builds/<system>' directory, as these files will
 120 #                 override the default sources.
 121 #
 122 INCLUDES := $(subst /,$(COMPILER_SEP),$(OBJ_DIR) \
 123                                       $(DEVEL_DIR) \
 124                                       $(PLATFORM_DIR) \
 125                                       $(TOP_DIR)/include)
 126
 127 INCLUDE_FLAGS := $(INCLUDES:%=$I%)
 128
 129 # For a development build, we assume that the external library dependencies
 130 # defined in `ftoption.h' are fulfilled, so we directly access the necessary
 131 # include directory information using `pkg-config'.
 132 #
 133 ifdef DEVEL_DIR
 134   INCLUDE_FLAGS += $(shell pkg-config --cflags libpng)
 135   INCLUDE_FLAGS += $(shell pkg-config --cflags harfbuzz)
 136   INCLUDE_FLAGS += $(shell pkg-config --cflags libbrotlidec)
 137 endif
 138
 139
 140 # C flags used for the compilation of an object file.  This must include at
 141 # least the paths for the `base' and `builds/<system>' directories;
 142 # debug/optimization/warning flags + ansi compliance if needed.
 143 #
 144 # $(INCLUDE_FLAGS) should come before $(CFLAGS) to avoid problems with
 145 # old FreeType versions.
 146 #
 147 # Note what we also define the macro FT2_BUILD_LIBRARY when building
 148 # FreeType.  This is required to let our sources include the internal
 149 # headers (something forbidden by clients).
 150 #
 151 # `CPPFLAGS' might be specified by the user in the environment.
 152 #
 153 FT_CFLAGS = $(CPPFLAGS) \
 154             $(CFLAGS) \
 155             $DFT2_BUILD_LIBRARY
 156
 157 FT_COMPILE := $(CC) $(ANSIFLAGS) $(INCLUDE_FLAGS) $(FT_CFLAGS)
 158
 159
 160 # Include the `exports' rules file.
 161 #
 162 include $(TOP_DIR)/builds/exports.mk
 163
 164
 165 # Initialize the list of objects.
 166 #
 167 OBJECTS_LIST :=
 168
 169
 170 # Define $(PUBLIC_H) as the list of all public header files located in
 171 # `$(TOP_DIR)/include/freetype'.  $(INTERNAL_H), and $(CONFIG_H) are defined
 172 # similarly.  $(FTOPTION_H) is the option file used in the compilation.
 173 #
 174 # This is used to simplify the dependency rules -- if one of these files
 175 # changes, the whole library is recompiled.
 176 #
 177 ifneq ($(wildcard $(OBJ_DIR)/ftoption.h),)
 178   FTOPTION_H := $(OBJ_DIR)/ftoption.h
 179 else ifneq ($(wildcard $(PLATFORM_DIR)/ftoption.h),)
 180   FTOPTION_H := $(PLATFORM_DIR)/ftoption.h
 181 endif
 182
 183 PUBLIC_H   := $(wildcard $(PUBLIC_DIR)/*.h)
 184 INTERNAL_H := $(wildcard $(INTERNAL_DIR)/*.h) \
 185               $(wildcard $(SERVICES_DIR)/*.h)
 186 CONFIG_H   := $(wildcard $(CONFIG_DIR)/*.h) \
 187               $(wildcard $(PLATFORM_DIR)/config/*.h) \
 188               $(FTMODULE_H) \
 189               $(FTOPTION_H)
 190 DEVEL_H    := $(wildcard $(TOP_DIR)/devel/*.h)
 191
 192 FREETYPE_H := $(PUBLIC_H) $(INTERNAL_H) $(CONFIG_H) $(DEVEL_H)
 193
 194
 195 # ftsystem component
 196 #
 197 FTSYS_SRC ?= $(BASE_DIR)/ftsystem.c
 198
 199 FTSYS_OBJ := $(OBJ_DIR)/ftsystem.$O
 200
 201 OBJECTS_LIST += $(FTSYS_OBJ)
 202
 203 $(FTSYS_OBJ): $(FTSYS_SRC) $(FREETYPE_H)
 204         $(FT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
 205
 206
 207 # ftdebug component
 208 #
 209 FTDEBUG_SRC ?= $(BASE_DIR)/ftdebug.c
 210
 211 FTDEBUG_OBJ := $(OBJ_DIR)/ftdebug.$O
 212
 213 OBJECTS_LIST += $(FTDEBUG_OBJ)
 214
 215 $(FTDEBUG_OBJ): $(FTDEBUG_SRC) $(FREETYPE_H)
 216         $(FT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
 217
 218
 219 # Include all rule files from FreeType components.
 220 #
 221 include $(SRC_DIR)/base/rules.mk
 222 include $(patsubst %,$(SRC_DIR)/%/rules.mk,$(MODULES))
 223 include $(SRC_DIR)/dlg/rules.mk
 224
 225
 226 # ftinit component
 227 #
 228 #   The C source `ftinit.c' contains the FreeType initialization routines.
 229 #   It is able to automatically register one or more drivers when the API
 230 #   function FT_Init_FreeType() is called.
 231 #
 232 #   The set of initial drivers is determined by the driver Makefiles
 233 #   includes above.  Each driver Makefile updates the FTINIT_xxx lists
 234 #   which contain additional include paths and macros used to compile the
 235 #   single `ftinit.c' source.
 236 #
 237 FTINIT_SRC := $(BASE_DIR)/ftinit.c
 238 FTINIT_OBJ := $(OBJ_DIR)/ftinit.$O
 239
 240 OBJECTS_LIST += $(FTINIT_OBJ)
 241
 242 $(FTINIT_OBJ): $(FTINIT_SRC) $(FREETYPE_H)
 243         $(FT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
 244
 245
 246 # ftver component
 247 #
 248 #  The VERSIONINFO resource `ftver.rc' contains version and copyright
 249 #  to be compiled by windres and tagged into DLL usually.
 250 #
 251 ifneq ($(RC),)
 252   FTVER_SRC := $(BASE_DIR)/ftver.rc
 253   FTVER_OBJ := $(OBJ_DIR)/ftver.$O
 254
 255   OBJECTS_LIST += $(FTVER_OBJ)
 256
 257   $(FTVER_OBJ): $(FTVER_SRC)
 258         $(RC) -o $@ $<
 259 endif
 260
 261
 262 # All FreeType library objects.
 263 #
 264 OBJ_M := $(BASE_OBJ_M) $(BASE_EXT_OBJ) $(DRV_OBJS_M) $(DLG_OBJS_M)
 265 OBJ_S := $(BASE_OBJ_S) $(BASE_EXT_OBJ) $(DRV_OBJS_S) $(DLG_OBJS_S)
 266
 267
 268 # The target `multi' on the Make command line indicates that we want to
 269 # compile each source file independently.
 270 #
 271 # Otherwise, each module/driver is compiled in a single object file through
 272 # source file inclusion (see `src/base/ftbase.c' or
 273 # `src/truetype/truetype.c' for examples).
 274 #
 275 BASE_OBJECTS := $(OBJECTS_LIST)
 276
 277 ifneq ($(findstring multi,$(MAKECMDGOALS)),)
 278   OBJECTS_LIST += $(OBJ_M)
 279 else
 280   OBJECTS_LIST += $(OBJ_S)
 281 endif
 282
 283 objects: $(OBJECTS_LIST)
 284
 285 library: $(PROJECT_LIBRARY)
 286
 287 # Run `docwriter' in the current Python environment.
 288 #
 289 PYTHON ?= python
 290
 291 refdoc:
 292         @echo Running docwriter...
 293         $(PYTHON) -m docwriter \
 294                   --prefix=ft2 \
 295                   --title=FreeType-$(version) \
 296                   --site=reference \
 297                   --output=$(DOC_DIR) \
 298                   $(PUBLIC_DIR)/*.h \
 299                   $(PUBLIC_DIR)/config/*.h \
 300                   $(PUBLIC_DIR)/cache/*.h
 301         @echo Building static site...
 302         cd $(DOC_DIR) && mkdocs build
 303         @echo Done.
 304
 305 # Variables for running `refdoc' with Python's `virtualenv'.  The
 306 # environment is created in `DOC_DIR/env' and is gitignored.
 307 #
 308 # We still need to cd into `DOC_DIR' to build `mkdocs' because paths in
 309 # `mkdocs.yml' are relative to the current working directory.
 310 #
 311 VENV_NAME  := env
 312 VENV_DIR   := $(DOC_DIR)$(SEP)$(VENV_NAME)
 313 ENV_PYTHON := $(VENV_DIR)$(SEP)$(BIN)$(SEP)$(PYTHON)
 314
 315 refdoc-venv:
 316         @echo Setting up virtualenv for Python...
 317         virtualenv --python=$(PYTHON) $(VENV_DIR)
 318         @echo Installing docwriter...
 319         $(ENV_PYTHON) -m pip install docwriter
 320         @echo Running docwriter...
 321         $(ENV_PYTHON) -m docwriter \
 322                       --prefix=ft2 \
 323                       --title=FreeType-$(version) \
 324                       --site=reference \
 325                       --output=$(DOC_DIR) \
 326                       $(PUBLIC_DIR)/*.h \
 327                       $(PUBLIC_DIR)/config/*.h \
 328                       $(PUBLIC_DIR)/cache/*.h
 329         @echo Building static site...
 330         cd $(DOC_DIR) && $(VENV_NAME)$(SEP)$(BIN)$(SEP)python -m mkdocs build
 331         @echo Done.
 332
 333 .PHONY: clean_project_std distclean_project_std
 334
 335 # Standard cleaning and distclean rules.  These are not accepted
 336 # on all systems though.
 337 #
 338 clean_project_std:
 339         -$(DELETE) $(BASE_OBJECTS) $(OBJ_M) $(OBJ_S) $(CLEAN)
 340
 341 distclean_project_std: clean_project_std
 342         -$(DELETE) $(PROJECT_LIBRARY)
 343         -$(DELETE) *.orig *~ core *.core $(DISTCLEAN)
 344
 345
 346 .PHONY: clean_project_dos distclean_project_dos
 347
 348 # The Dos command shell does not support very long list of arguments, so
 349 # we are stuck with wildcards.
 350 #
 351 # Don't break the command lines with \; this prevents the "del" command from
 352 # working correctly on Win9x.
 353 #
 354 clean_project_dos:
 355         -$(DELETE) $(subst /,$(SEP),$(OBJ_DIR)/*.$O $(CLEAN) $(NO_OUTPUT))
 356
 357 distclean_project_dos: clean_project_dos
 358         -$(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY) $(DISTCLEAN) $(NO_OUTPUT))
 359
 360
 361 .PHONY: remove_config_mk remove_ftmodule_h
 362
 363 # Remove configuration file (used for distclean).
 364 #
 365 remove_config_mk:
 366         -$(DELETE) $(subst /,$(SEP),$(CONFIG_MK) $(NO_OUTPUT))
 367
 368 # Remove module list (used for distclean).
 369 #
 370 remove_ftmodule_h:
 371         -$(DELETE) $(subst /,$(SEP),$(FTMODULE_H) $(NO_OUTPUT))
 372
 373
 374 .PHONY: clean distclean
 375
 376 # The `config.mk' file must define `clean_project' and `distclean_project'.
 377 # Implementations may use to relay these to either the `std' or `dos'
 378 # versions from above, or simply provide their own implementation.
 379 #
 380 clean: clean_project
 381 distclean: distclean_project remove_config_mk remove_ftmodule_h
 382         -$(DELETE) $(subst /,$(SEP),$(DOC_DIR)/*.html $(NO_OUTPUT))
 383
 384
 385 # EOF