Makefile

   1 ## Almost Universal Makefile
   2 ## Author: Przemysław Pawełczyk
   3
   4 BINS := \
   5  metastore
   6
   7 LIBS := \
   8
   9 ### Directories
  10 PROJ_DIR := $(dir $(lastword $(MAKEFILE_LIST)))
  11 SRCS_DIR = $(PROJ_DIR)src/
  12 INCS_DIR = $(PROJ_DIR)include/
  13 CFGS_DIR = $(PROJ_DIR)etc/
  14 SHRS_DIR = $(PROJ_DIR)share/
  15 OBJS_DIR = $(PROJ_DIR)obj/
  16 BINS_DIR = $(PROJ_DIR)bin/
  17 LIBS_DIR = $(PROJ_DIR)lib/
  18 DOCS_DIR = $(PROJ_DIR)
  19 MANS_DIR = $(PROJ_DIR)
  20
  21 ###
  22 METASTORE_VER  := $(shell "$(PROJ_DIR)"/version.sh)
  23 UNAME_S        := $(shell uname -s)
  24
  25 ###
  26
  27 DOCS := \
  28  AUTHORS \
  29  FILEFORMAT \
  30  LICENSE.GPLv2 \
  31  NEWS \
  32  README \
  33  metastore.txt \
  34  examples \
  35
  36 metastore_COMP := CC
  37
  38 metastore_SRCS := \
  39  metaentry.c \
  40  metastore.c \
  41  utils.c \
  42
  43 metastore_DLIBS := \
  44
  45 metastore_MANS := \
  46  man1/metastore.1 \
  47
  48 ifeq ($(findstring BSD,$(UNAME_S)),)
  49 ifneq (DragonFly,$(UNAME_S))
  50 ifneq (Darwin,$(UNAME_S))
  51 metastore_DLIBS += -lbsd
  52 endif
  53 endif
  54 endif
  55
  56 ifneq (,$(NO_XATTR))
  57 ifneq (0,$(NO_XATTR))
  58 ADDITIONAL_FLAGS += -DNO_XATTR
  59 endif
  60 endif
  61
  62 PVER := $(PROJ_DIR)Makefile.ver
  63
  64 SDEP := Makefile.dep
  65
  66 -include $(PVER)
  67
  68 # when building from project tree, then always use the same output layout
  69 # otherwise use current working directory
  70 ifneq (,$(findstring ^$(realpath $(PROJ_DIR)),^$(realpath ./)))
  71         SDEP := $(PROJ_DIR)$(SDEP)
  72 else
  73         OBJS_DIR := ./obj/
  74         BINS_DIR := ./bin/
  75         LIBS_DIR := ./lib/
  76 endif
  77
  78
  79 # library name prefix
  80 LIB_PRE := lib
  81 # Dynamic Shared Object extension
  82 DSO_EXT := .so
  83 # Statically-Linked Library extension
  84 SLL_EXT := .a
  85
  86
  87 ### Default target
  88 all:   libs bins
  89
  90 bins:  $(BINS)
  91 libs:  $(LIBS)
  92
  93 ### Flags
  94 MUSTHAVE_FLAGS    := \
  95  -DMETASTORE_VER="\"$(METASTORE_VER)\"" \
  96  -D_FILE_OFFSET_BITS=64 \
  97  -Wall -Wextra -pedantic \
  98  -g \
  99  $(ADDITIONAL_FLAGS) \
 100
 101 MUSTHAVE_CFLAGS   := -std=c99
 102 MUSTHAVE_CXXFLAGS := -std=c++11
 103 OPTIONAL_FLAGS    := -O2
 104
 105 ### Install paths
 106 PREFIX := /usr/local
 107 EXECPREFIX := $(PREFIX)
 108 BINDIR := $(EXECPREFIX)/bin
 109 LIBDIR := $(EXECPREFIX)/lib
 110 INCLUDEDIR := $(PREFIX)/include
 111 SYSCONFDIR := $(PREFIX)/etc
 112 DATAROOTDIR := $(PREFIX)/share
 113 DATADIR := $(DATAROOTDIR)
 114 DOCDIR := ${DATAROOTDIR}/doc/metastore
 115 MANDIR := ${DATAROOTDIR}/man
 116
 117 ### Phony targets
 118 .PHONY: \
 119  all bins libs \
 120  strip strip-bins strips-libs \
 121  install install-bins install-libs install-includes \
 122  install-configs install-docs install-mans install-shares \
 123  uninstall uninstall-bins uninstall-libs uninstall-includes \
 124  clean distclean \
 125  dep \
 126  printvars \
 127
 128 ### Debug
 129 printvars:
 130         @$(foreach V, $(sort $(.VARIABLES)), \
 131            $(if $(filter-out environment% default automatic, $(origin $V)), \
 132                 $(warning $V = $(value $V)) \
 133                 $(if $(findstring ^$(value $V)%,^$($V)%),,$(warning $V == $($V))) \
 134            ) \
 135         )
 136
 137 ### Install tools
 138 INSTALL := install
 139 INSTALL_EXEC := $(INSTALL) -m 0755
 140 COPY_NODEREF := cp -P
 141
 142 ### Build tools
 143 DEFCC  := gcc
 144 DEFCXX := g++
 145 ifeq ($(origin CC),default)
 146 CC  := $(DEFCC)
 147 endif
 148 ifeq ($(origin CXX),default)
 149 CXX := $(DEFCXX)
 150 endif
 151 ifneq ($(origin CC),environment)
 152 CC  := $(CROSS_COMPILE)$(CC)
 153 endif
 154 ifneq ($(origin CXX),environment)
 155 CXX := $(CROSS_COMPILE)$(CXX)
 156 endif
 157 ifneq ($(origin CCLD),environment)
 158 CCLD  := $(CC)
 159 endif
 160 ifneq ($(origin CXXLD),environment)
 161 CXXLD := $(CXX)
 162 endif
 163 ifneq ($(origin STRIP),environment)
 164 STRIP := $(CROSS_COMPILE)strip
 165 endif
 166 CC_PARAMS  = $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH)
 167 CXX_PARAMS = $(CXXFLAGS) $(CPPFLAGS) $(TARGET_ARCH)
 168
 169 ### Final flags
 170 ifneq ($(origin CFLAGS),environment)
 171 CFLAGS   = $(OPTIONAL_FLAGS)
 172 endif
 173 ifneq ($(origin CXXFLAGS),environment)
 174 CXXFLAGS = $(OPTIONAL_FLAGS)
 175 endif
 176 override CFLAGS   += $(MUSTHAVE_FLAGS) $(MUSTHAVE_CFLAGS) \
 177                      $(if $(INCS_DIR),-I$(INCS_DIR),) -I$(SRCS_DIR)
 178 override CXXFLAGS += $(MUSTHAVE_FLAGS) $(MUSTHAVE_CXXFLAGS) \
 179                          $(if $(INCS_DIR),-I$(INCS_DIR),) -I$(SRCS_DIR)
 180
 181 vpath %.h   $(SRCS_DIR) $(INCS_DIR)
 182 vpath %.c   $(SRCS_DIR)
 183 vpath %.cpp $(SRCS_DIR)
 184
 185 ### Support for hiding command-line
 186 V ?= 0
 187 HIDE_0 := @
 188 HIDE_1 :=
 189 HIDE := $(HIDE_$(V))
 190
 191
 192 ### Rules for directories
 193
 194 $(sort $(OBJS_DIR) $(BINS_DIR) $(LIBS_DIR)):
 195         @mkdir -p $@
 196
 197 ### Templated rules
 198
 199 define BIN_template
 200
 201 $(1)_OBJS := $$(addsuffix .o,$$(basename $$($(1)_SRCS)))
 202
 203 $$(BINS_DIR)$(1): \
 204  $$(addsuffix $$(DSO_EXT),$$(addprefix $$(LIBS_DIR)$$(LIB_PRE),$$($(1)_DEPS))) \
 205  $$(addsuffix $$(SLL_EXT),$$(addprefix $$(LIBS_DIR)$$(LIB_PRE),$$($(1)_DEPS))) \
 206  $$(addprefix $$(OBJS_DIR),$$($(1)_OBJS)) $$(SDEP) | $$(BINS_DIR)
 207 ifeq ($$($(1)_COMP),CC)
 208         @echo "        CCLD    $$@"
 209 else
 210         @echo "        CXXLD   $$@"
 211 endif
 212         $$(HIDE)$$($$($(1)_COMP)LD) $$(LDFLAGS) $$(TARGET_ARCH) \
 213           -o $$@ $$(filter %.o,$$^) \
 214           -Wl,-Bstatic $$($(1)_SLIBS) -Wl,-Bdynamic $$($(1)_DLIBS)
 215
 216 $(1): $$(BINS_DIR)$(1)
 217 .PHONY: $(1)
 218
 219 SRCS += $$($(1)_SRCS)
 220 OBJS += $$($(1)_OBJS)
 221
 222 CFGS += $$($(1)_CFGS)
 223 MANS += $$($(1)_MANS)
 224 SHRS += $$($(1)_SHRS)
 225
 226 endef
 227
 228 define LIB_template
 229
 230 $(1)_OBJS := $$(addsuffix .o,$$(basename $$($(1)_SRCS)))
 231
 232 $(1)_SOLINK := $$(LIB_PRE)$(1)$$(DSO_EXT)
 233 $(1)_SONAME := $$(LIB_PRE)$(1)$$(DSO_EXT).$$($(1)_MAJV)
 234 $(1)_SOFILE := $$(LIB_PRE)$(1)$$(DSO_EXT).$$($(1)_MAJV)$$($(1)_MINV)
 235 $(1)_ARFILE := $$(LIB_PRE)$(1)$$(SLL_EXT)
 236
 237 $$(LIBS_DIR)$$($(1)_SOLINK): $$(LIBS_DIR)$$($(1)_SONAME)
 238         @echo "        LN      $$@ -> $$($(1)_SONAME)"
 239         $$(HIDE)(cd "$(LIBS_DIR)" && ln -sf $$($(1)_SONAME) $$($(1)_SOLINK))
 240
 241 ifneq ($$($(1)_SONAME),$$($(1)_SOFILE))
 242 $$(LIBS_DIR)$$($(1)_SONAME): $$(LIBS_DIR)$$($(1)_SOFILE)
 243         @echo "        LN      $$@ -> $$($(1)_SOFILE)"
 244         $$(HIDE)(cd "$$(LIBS_DIR)" && ln -sf $$($(1)_SOFILE) $$($(1)_SONAME))
 245 endif
 246
 247 $$(LIBS_DIR)$$($(1)_SOFILE): \
 248  $$(addsuffix $$(DSO_EXT),$$(addprefix $$(LIBS_DIR)$$(LIB_PRE),$$($(1)_DEPS))) \
 249  $$(addsuffix $$(SLL_EXT),$$(addprefix $$(LIBS_DIR)$$(LIB_PRE),$$($(1)_DEPS))) \
 250  $$(addprefix $$(OBJS_DIR),$$($(1)_OBJS)) $$(SDEP) | $$(LIBS_DIR)
 251 ifeq ($$($(1)_COMP),CC)
 252         @echo "        CCLD    $$@"
 253 else
 254         @echo "        CXXLD   $$@"
 255 endif
 256         $$(HIDE)$$($$($(1)_COMP)LD) $$(LDFLAGS) $$(TARGET_ARCH) \
 257           -shared -Wl,-soname,$$($(1)_SONAME) \
 258           -o $$@ $$(filter %.o,$$^) \
 259           -Wl,-Bstatic $$($(1)_SLIBS) -Wl,-Bdynamic $$($(1)_DLIBS)
 260
 261 $$(LIBS_DIR)$$($(1)_ARFILE): \
 262  $$(addprefix $$(OBJS_DIR),$$($(1)_OBJS)) $$(SDEP) | $$(LIBS_DIR)
 263         @echo "        AR      $$@"
 264         $$(HIDE)$$(AR) r $$@ $$(filter %.o,$$^)
 265
 266 $(1): \
 267  $$(LIBS_DIR)$$($(1)_SOFILE) \
 268  $$(LIBS_DIR)$$($(1)_SOLINK) \
 269  $$(LIBS_DIR)$$($(1)_ARFILE)
 270 .PHONY: $(1)
 271
 272 SRCS += $$($(1)_SRCS)
 273 OBJS += $$($(1)_OBJS)
 274
 275 INCS += $$($(1)_INCS)
 276 CFGS += $$($(1)_CFGS)
 277 MANS += $$($(1)_MANS)
 278 SHRS += $$($(1)_SHRS)
 279
 280 LIBS_FILES += $$($(1)_SOFILE) $$($(1)_ARFILE)
 281 LIBS_ALL_FILES += $$($(1)_SOLINK) $$($(1)_SONAME) $$($(1)_SOFILE) \
 282                   $$($(1)_ARFILE)
 283
 284 endef
 285
 286 $(foreach BIN,$(BINS),$(eval $(call BIN_template,$(BIN))))
 287
 288 $(foreach LIB,$(LIBS),$(eval $(call LIB_template,$(LIB))))
 289
 290
 291 ### Rules for normal targets
 292
 293 $(OBJS_DIR)%.o: %.c
 294         @echo "        CC      $@"
 295         $(HIDE)mkdir -p $(dir $@)
 296         $(HIDE)$(CC) $(CC_PARAMS) -c -o $@ $<
 297
 298 $(OBJS_DIR)%.o: %.cpp
 299         @echo "        CXX     $@"
 300         $(HIDE)mkdir -p $(dir $@)
 301         $(HIDE)$(CXX) $(CXX_PARAMS) -c -o $@ $<
 302
 303 $(SDEP): SRCS_PATH := $(SRCS_DIR)
 304 $(SDEP): SRCS_DIR := ./
 305 $(SDEP): PROJ_DIR := ../
 306 $(SDEP): $(SRCS) $(PROJ_DIR)Makefile
 307         @echo "        DEPS";
 308         $(HIDE)echo "# This file is automatically (re)generated by make." >$(SDEP)
 309         $(HIDE)echo >>$(SDEP)
 310         $(HIDE)(cd "$(SRCS_PATH)" && for FILE in $(SRCS); do \
 311                 if [ "$${FILE##*.}" = "c" ]; then \
 312                         $(CC) $(CFLAGS) -MT "\$$(OBJS_DIR)$${FILE%.*}.o" -MM "$$FILE"; \
 313                 else \
 314                         $(CXX) $(CXXFLAGS) -MT "\$$(OBJS_DIR)$${FILE%.*}.o" -MM "$$FILE"; \
 315                 fi \
 316         done) >>$(SDEP)
 317
 318 $(DOCS_DIR)%.txt: $(MANS_DIR)/man1/%.1
 319         @echo "        GROFF   $@"
 320         $(HIDE)groff -mandoc -Kutf8 -Tutf8 $^ | col -bx >$@
 321
 322
 323 ### Rules for phony targets
 324
 325 clean:
 326         @echo "        CLEAN"
 327         $(HIDE)$(RM) $(addprefix $(BINS_DIR),$(BINS)) \
 328                      $(addprefix $(LIBS_DIR),$(LIBS_ALL_FILES)) \
 329                      $(addprefix $(OBJS_DIR),$(OBJS)) \
 330                      $(SDEP)
 331
 332 distclean: clean
 333         $(HIDE)(find \
 334                 $(OBJS_DIR) \
 335                 $(LIBS_DIR) \
 336                 $(BINS_DIR) \
 337                 -type d -exec rmdir --parents {} \; \
 338                 2>/dev/null ; exit 0)
 339
 340 dep: $(SDEP)
 341
 342 strip: strip-bins strip-libs
 343
 344 strip-bins: $(addprefix $(BINS_DIR),$(BINS))
 345 ifneq ($(strip $(BINS)),)
 346         @echo "        STRIP   $^"
 347         $(HIDE)$(STRIP) $^
 348 endif
 349
 350 strip-libs: $(addprefix $(LIBS_DIR),$(LIBS_FILES))
 351 ifneq ($(strip $(LIBS)),)
 352         @echo "        STRIP   $^"
 353         $(HIDE)$(STRIP) $^
 354 endif
 355
 356 install: install-bins install-libs install-includes \
 357          install-configs install-docs install-mans install-shares \
 358
 359 install-bins: $(addprefix $(BINS_DIR),$(BINS))
 360 ifneq ($(strip $(BINS)),)
 361         @echo "        INSTALL $^"
 362         $(HIDE)$(INSTALL) -d $(DESTDIR)$(BINDIR)
 363         $(HIDE)$(INSTALL_EXEC) \
 364                 $(addprefix $(BINS_DIR),$(BINS)) \
 365                 $(DESTDIR)$(BINDIR)/
 366 endif
 367
 368 install-libs: $(addprefix $(LIBS_DIR),$(LIBS_ALL_FILES))
 369 ifneq ($(strip $(LIBS)),)
 370         @echo "        INSTALL $^"
 371         $(HIDE)$(INSTALL) -d $(DESTDIR)$(LIBDIR)
 372         $(HIDE)$(COPY_NODEREF) \
 373                 $(addprefix $(LIBS_DIR),$(LIBS_ALL_FILES)) \
 374                 $(DESTDIR)$(LIBDIR)/
 375 endif
 376
 377 install-includes: $(addprefix $(INCS_DIR),$(INCS))
 378 ifneq ($(strip $(INCS)),)
 379         @echo "        INSTALL $^"
 380         $(HIDE)$(INSTALL) -d $(DESTDIR)$(INCLUDEDIR)
 381         $(HIDE)( cd $(INCS_DIR) && $(COPY_NODEREF) --parents \
 382                 $(INCS) \
 383                 $(DESTDIR)$(INCLUDEDIR)/ \
 384         )
 385 endif
 386
 387 install-configs: $(addprefix $(CFGS_DIR),$(CFGS))
 388 ifneq ($(strip $(CFGS)),)
 389         @echo "        INSTALL $^"
 390         $(HIDE)$(INSTALL) -d $(DESTDIR)$(SYSCONFDIR)
 391         $(HIDE)( cd $(CFGS_DIR) && $(COPY_NODEREF) --parents \
 392                 $(CFGS) \
 393                 $(DESTDIR)$(SYSCONFDIR)/ \
 394         )
 395 endif
 396
 397 install-docs: $(addprefix $(DOCS_DIR),$(DOCS))
 398 ifneq ($(strip $(DOCS)),)
 399         @echo "        INSTALL $^"
 400         $(HIDE)$(INSTALL) -d $(DESTDIR)$(DOCDIR)
 401         $(HIDE)( cd $(DOCS_DIR) && $(COPY_NODEREF) --parents -r \
 402                 $(DOCS) \
 403                 $(DESTDIR)$(DOCDIR)/ \
 404         )
 405 endif
 406
 407 install-mans: $(addprefix $(MANS_DIR),$(MANS))
 408 ifneq ($(strip $(MANS)),)
 409         @echo "        INSTALL $^"
 410         $(HIDE)$(INSTALL) -d $(DESTDIR)$(MANDIR)
 411         $(HIDE)( cd $(MANS_DIR) && $(COPY_NODEREF) --parents \
 412                 $(MANS) \
 413                 $(DESTDIR)$(MANDIR)/ \
 414         )
 415 endif
 416
 417 install-shares: $(addprefix $(SHRS_DIR),$(SHRS))
 418 ifneq ($(strip $(SHRS)),)
 419         @echo "        INSTALL $^"
 420         $(HIDE)$(INSTALL) -d $(DESTDIR)$(DATADIR)
 421         $(HIDE)( cd $(SHRS_DIR) && $(COPY_NODEREF) --parents \
 422                 $(SHRS) \
 423                 $(DESTDIR)$(DATADIR)/ \
 424         )
 425 endif
 426
 427 uninstall: uninstall-bins uninstall-libs uninstall-includes \
 428            uninstall-docs uninstall-mans uninstall-shares \
 429
 430 uninstall-bins:
 431 ifneq ($(strip $(BINS)),)
 432         @echo "        UNINST  $(addprefix $(DESTDIR)$(BINDIR)/,$(BINS))"
 433         $(HIDE)$(RM) $(addprefix $(DESTDIR)$(BINDIR)/,$(BINS))
 434 endif
 435
 436 uninstall-libs:
 437 ifneq ($(strip $(LIBS)),)
 438         @echo "        UNINST  $(addprefix $(DESTDIR)$(LIBDIR)/,$(LIBS_ALL_FILES))"
 439         $(HIDE)$(RM) $(addprefix $(DESTDIR)$(LIBDIR)/,$(LIBS_ALL_FILES))
 440 endif
 441
 442 uninstall-includes:
 443 ifneq ($(strip $(INCS)),)
 444         @echo "        UNINST  $(addprefix $(DESTDIR)$(INCLUDEDIR)/,$(INCS))"
 445         $(HIDE)$(RM) $(addprefix $(DESTDIR)$(INCLUDEDIR)/,$(INCS))
 446 endif
 447
 448 uninstall-docs:
 449 ifneq ($(strip $(DOCS)),)
 450         @echo "        UNINST  $(addprefix $(DESTDIR)$(DOCDIR)/,$(DOCS))"
 451         $(HIDE)$(RM) -r $(addprefix $(DESTDIR)$(DOCDIR)/,$(DOCS))
 452 endif
 453
 454 uninstall-mans:
 455 ifneq ($(strip $(MANS)),)
 456         @echo "        UNINST  $(addprefix $(DESTDIR)$(MANDIR)/,$(MANS))"
 457         $(HIDE)$(RM) $(addprefix $(DESTDIR)$(MANDIR)/,$(MANS))
 458 endif
 459
 460 uninstall-shares:
 461 ifneq ($(strip $(SHRS)),)
 462         @echo "        UNINST  $(addprefix $(DESTDIR)$(DATADIR)/,$(SHRS))"
 463         $(HIDE)$(RM) $(addprefix $(DESTDIR)$(DATADIR)/,$(SHRS))
 464 endif
 465
 466
 467 ### Dependencies
 468 ifneq ($(MAKECMDGOALS),distclean)
 469 ifneq ($(MAKECMDGOALS),clean)
 470 -include $(SDEP)
 471 endif
 472 endif