-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathMakefile.pdlibbuilder
executable file
·1340 lines (1070 loc) · 43.5 KB
/
Makefile.pdlibbuilder
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
# Makefile.pdlibbuilder dated 2019-12-21
version = 0.6.0
# Helper makefile for Pure Data external libraries.
# Written by Katja Vetter March-June 2015 for the public domain. No warranties.
# Inspired by Hans Christoph Steiner's Makefile Template and Stephan Beal's
# ShakeNMake.
#
# Grab the newest version of Makefile.pdlibbuilder from
# https://github.com/pure-data/pd-lib-builder/
#
# GNU make version >= 3.81 required.
#
#
#=== characteristics ===========================================================
#
#
# - defines build settings based on autodetected OS and architecture
# - defines rules to build Pd class- or lib executables from C or C++ sources
# - defines rules for libdir installation
# - defines convenience targets for developer and user
# - evaluates implicit dependencies for non-clean builds
#
#
#=== basic usage ===============================================================
#
#
# In your Makefile, define your Pd lib name and class files, and include
# Makefile.pdlibbuilder at the end of the Makefile. Like so:
#
# ________________________________________________________________________
#
# # Makefile for mylib
#
# lib.name = mylib
#
# class.sources = myclass1.c myclass2.c
#
# datafiles = myclass1-help.pd myclass2-help.pd README.txt LICENSE.txt
#
# include Makefile.pdlibbuilder
# ________________________________________________________________________
#
#
# For files in class.sources it is assumed that class basename == source file
# basename. The default target builds all classes as individual executables
# with Pd's default extension for the platform. For anything more than the
# most basic usage, continue reading.
#
#
#=== list of Makefile.pdlibbuilder API variables ===============================
#
#
# Variables available for definition in your library Makefile:
#
# - lib.name
# - lib.setup.sources
# - class.sources
# - common.sources
# - shared.sources
# - <classname>.class.sources
# - <classname>.class.ldflags
# - <classname>.class.ldlibs
# - cflags
# - ldflags
# - ldlibs
# - datafiles
# - datadirs
# - makefiles
# - makefiledirs
# - externalsdir
#
# Optional multiline defines evaluated per operating system:
#
# - forLinux
# - forDarwin
# - forWindows
#
# Variables available for your makefile or make command line:
#
# - make-lib-executable
# - suppress-wunused
#
# Path variables for make command line or environment:
#
# - PDDIR
# - PDINCLUDEDIR
# - PDBINDIR
# - PDLIBDIR
#
# Standard make variables for make command line or environment:
#
# - CPPFLAGS
# - CFLAGS
# - LDFLAGS
# - CC
# - CXX
# - INSTALL
# - STRIP
# - DESTDIR
#
# Optional user variables for make command line or environment:
#
# - PLATFORM
#
# Deprecated path variables:
#
# - pdincludepath
# - pdbinpath
# - objectsdir
#
#
#=== descriptions of Makefile.pdlibbuilder API variables =======================
#
#
# lib.name:
# Name of the library directory as it will be installed / distributed. Also the
# name of the lib executable in the case where all classes are linked into
# a single binary.
#
# lib.setup.sources:
# Source file(s) (C or C++) which must be compiled only when linking all classes
# into a single lib binary.
#
# class.sources:
# All sources files (C or C++) for which the condition holds that
# class name == source file basename.
#
# <classname>.class.sources:
# Source file(s) (C or C++) specific to class <classname>. Use this for
# multiple-source classes or when class name != source file basename.
#
# common.sources:
# Source file(s) which must be statically linked to each class in the library.
#
# shared.sources:
# Source file(s) (C or C++) to build a shared dynamic link lib, to be linked
# with all class executables.
#
# cflags, ldflags, ldlibs:
# Define cflags (preprocessor&compiler), ldflags (linker) and ldlibs (dynamic
# link libs) for the whole library. These flags are added to platform-specific
# flags defined by Makefile.pdlibbuilder.
#
# <classname>.class.ldflags and <classname>.class.ldlibs:
# Define ldflags resp. ldlibs specific to class <classname>. These flags are
# added to platform-specific flags defined by Makefile.pdlibbuilder, and flags
# defined in your Makefile for the whole library. Note: cflags can not be
# defined per class in the current implementation.
#
# datafiles and datadirs:
# All extra files you want to include in binary distributions of the
# library: abstractions and help patches, example patches, meta patch, readme
# and license texts, manuals, sound files, etcetera. Use 'datafiles' for all
# files that should go into your lib rootdir and 'datadirs' for complete
# directories you want to copy from source to distribution.
#
# forLinux, forDarwin, forWindows:
# Shorthand for 'variable definitions for Linux only' etc. Use like:
# define forLinux
# cflags += -DLINUX
# class.sources += linuxthing.c
# endef
#
# makefiles and makefiledirs:
# Extra makefiles or directories with makefiles that should be made in sub-make
# processes.
#
# make-lib-executable:
# When this variable is defined 'yes' in your makefile or as command argument,
# Makefile.pdlibbuilder will try to build all classes into a single library
# executable (but it will force exit if lib.setup.sources is undefined).
# If your makefile defines 'make-lib-executable=yes' as the library default,
# this can still be overridden with 'make-lib-executable=no' as command argument
# to build individual class executables (the Makefile.pdlibbuilder default.)
#
# suppress-wunused:
# When this variable is defined ('yes' or any other value), -Wunused-variable,
# -Wunused-parameter, -Wunused-value and -Wunused-function are suppressed,
# but the other warnings from -Wall are retained.
#
# PDDIR:
# Root directory of 'portable' pd package. When defined, PDINCLUDEDIR and
# PDBINDIR will be evaluated as $(PDDIR)/src and $(PDDIR)/bin.
#
# PDINCLUDEDIR:
# Directory where Pd API m_pd.h should be found, and other Pd header files.
# Overrides the default search path.
#
# PDBINDIR:
# Directory where pd.dll should be found for linking (Windows only). Overrides
# the default search path.
#
# PDLIBDIR:
# Root directory for installation of Pd library directories. Overrides the
# default install location.
#
# DESTDIR:
# Prepended path component for staged install.
#
# PLATFORM:
# Target platform for cross compilation in the form of GNU triplet:
# cpu-vendor-os. Example: x86_64-w64-mingw32. This specifies the tool chain that
# pdlibbuilder will use, if installed and locatable. System and architecture
# will then be autodefined accordingly. In most cases no other variables need to
# be overridden.
#
# CPPFLAGS:
# Preprocessor flags which are not strictly required for building.
#
# CFLAGS:
# Compiler flags which are not strictly required for building. Compiler flags
# defined by Makefile.pdlibbuilder for warning, optimization and architecture
# specification are overriden by CFLAGS.
#
# LDFLAGS:
# Linker flags which are not strictly required for building. Linker flags
# defined by Makefile.pdlibbuilder for architecture specification are overriden
# by LDFLAGS.
#
# CC and CXX:
# C and C++ compiler programs as defined in your build environment.
#
# INSTALL
# Definition of install program.
#
# STRIP
# Name of strip program. Default 'strip' can be overridden in cross compilation
# environments.
#
# objectsdir:
# Root directory for installation of Pd library directories, like PDLIBDIR but
# not overridable by environment. Supported for compatibility with pd-extended
# central makefile, but deprecated otherwise.
#
# pdincludepath, pdbinpath:
# As PDINCLUDEDIR and PDBINDIR but not overridable by environment. Deprecated
# as user variables.
#
#
#=== paths =====================================================================
#
#
# Source files in directories other than current working directory must be
# prefixed with their relative path. Do not rely on VPATH or vpath.
# Object (.o) files are built in the directory of their source files.
# Executables are built in current working directory.
#
# Default search path for m_pd.h and other API header files is platform
# dependent, and overridable by PDINCLUDEDIR:
#
# Linux: /usr/include/pd
#
# OSX: /Applications/Pd*.app/Contents/Resources/src
#
# Windows: %PROGRAMFILES%/Pd/src
# %PROGRAMFILES(X86)%/Pd/src (32 bit builds on 64 bit Windows)
#
# Default search path for binary pd.dll (Windows), overridable by PDBINDIR
#
# %PROGRAMFILES%/Pd/bin
# %PROGRAMFILES(X86)%/Pd/bin (32 bit builds on 64 bit Windows)
#
# Default location to install pd libraries is platform dependent, and
# overridable by PDLIBDIR:
#
# Linux: /usr/local/lib/pd-externals
# OSX: ~/Library/Pd
# Windows: %APPDATA%/Pd
#
# https://puredata.info/docs/faq/how-do-i-install-externals-and-help-files
# The rationale for not installing to ~/pd-externals by default on Linux
# is that some people share the home dir between 32 and 64 bit installations.
#
#
#=== targets ===================================================================
#
#
# all: build $(executables) plus optional post target
# post: target to build after $(executables)
# alldebug: build all with -g option turned on for debug symbols
# <classname>: force clean build of an individual class
# <sourcefile>.pre: make preprocessor output file in current working directory
# <sourcefile>.lst: make asm/source output file in current working directory
#
# install: install executables and data files
# clean: remove build products from source tree
#
# help: print help text
# vars: print makefile variables
# allvars: print all variables
# depend: print generated prerequisites
# dumpmachine: print compiler output of option '-dumpmachine'
# coffee: dummy target
#
# Variable $(executables) expands to class executables plus optional shared lib,
# or alternatively to single lib executable when make-lib-executable=true.
# Targets pre and post can be defined by library makefile. Make sure to include
# Makefile.pdlibbuilder first so default target all will not be redefined.
#
#
#=== Pd-extended libdir concept ================================================
#
#
# For libdir layout as conceived by Hans-Christoph Steiner, see:
#
# https://puredata.info/docs/developer/Libdir
#
# Files README.txt, LICENSE.txt and <lib.name>-meta.pd are part of the libdir
# convention. Help patches for each class and abstraction are supposed to be
# available. Makefile.pdlibbuilder does not force the presence of these files
# however. It does not automatically include such files in libdir installations.
# Data files you want to include in distributions must be defined explicitly in
# your Makefile.
#
#
#=== Makefile.pdlibbuilder syntax conventions ==================================
#
#
# Makefile.pdlibbuilder variable names are lower case. Default make variables,
# environment variables, and standard user variables (CC, CXX, CFLAGS, DESTDIR)
# are upper case. Use target 'allvars' to print all variables and their values.
#
# 'Fields' in data variables are separated by dots, like in 'foo.class.sources'.
# Words in variables expressing a function or command are separated by dashes,
# like in 'make-lib-executable'.
#
#
#=== useful make options =======================================================
#
#
# Use 'make -d <target>' to print debug details of the make process.
# Use 'make -p <target>' to print make's database.
#
#
#=== TODO ======================================================================
#
#
# - decide whether to use -static-libgcc or shared dll in MinGW
# - cygwin support
# - android support
# - figure out how to handle '$' in filenames
# - add makefile template targets dpkg-source dist libdir distclean tags?
#
#
#=== end of documentation sections =============================================
#
#
################################################################################
################################################################################
################################################################################
# GNU make version 3.81 (2006) or higher is required because of the following:
# - function 'info'
# - variable '.DEFAULT_GOAL'
# force exit when make version is < 3.81
ifneq ($(firstword $(sort 3.81 $(MAKE_VERSION))), 3.81)
$(error GNU make version 3.81 or higher is required)
endif
# Relative path to externals root dir in multi-lib source tree like
# pd-extended SVN. Default is parent of current working directory. May be
# defined differently in including makefile.
externalsdir ?= ..
# variable you can use to check if Makefile.pdlibbuilder is already included
Makefile.pdlibbuilder = true
################################################################################
### target platform detection ##################################################
################################################################################
#=== target platform ===========================================================
# PLATFORM: optional user variable to define target platform for cross
# compilation. Redefine build tools accordingly. PLATFORM should match
# the exact target prefix of tools present in $PATH, like x86_64-w64-mingw32,
# x86_64-apple-darwin12 etc. Tool definitions are exported to ensure submakes
# will get the same.
ifneq ($(PLATFORM),)
ifneq ($(findstring darwin, $(PLATFORM)),)
export CC = $(PLATFORM)-cc
export CXX = $(PLATFORM)-c++
export CPP = $(PLATFORM)-cc
else
export CC = $(PLATFORM)-gcc
export CXX = $(PLATFORM)-g++
export CPP = $(PLATFORM)-cpp
endif
STRIP = $(PLATFORM)-strip
endif
# Let (native or cross-) compiler report target triplet and isolate individual
# words therein to facilitate later processing.
target.triplet := $(subst -, ,$(shell $(CC) -dumpmachine))
#=== operating system ==========================================================
# The following systems are defined: Linux, Darwin, Windows. GNU and
# GNU/kFreeBSD are treated as Linux to get the same options.
ifneq ($(filter linux gnu% kfreebsd, $(target.triplet)),)
system = Linux
endif
ifneq ($(filter darwin%, $(target.triplet)),)
system = Darwin
endif
ifneq ($(filter mingw% cygwin%, $(target.triplet)),)
system = Windows
endif
# evaluate possible system-specific multiline defines from library makefile
$(eval $(for$(system)))
# TODO: Cygwin, Android
#=== architecture ==============================================================
# The following CPU names can be processed by pdlibbuilder:
# i*86 Intel 32 bit
# x86_64 Intel 64 bit
# arm ARM 32 bit
# aarch64 ARM 64 bit
target.arch := $(firstword $(target.triplet))
################################################################################
### variables per platform #####################################################
################################################################################
#=== flags per architecture ====================================================
# Set architecture-dependent cflags, mainly for Linux. For Mac and Windows,
# arch.c.flags are overriden below. To see gcc's default architecture flags:
# $ gcc -Q --help=target
# ARMv6: Raspberry Pi 1st gen, not detectable from target.arch
ifeq ($(shell uname), armv6l)
arch.c.flags = -march=armv6 -mfpu=vfp -mfloat-abi=hard
# ARMv7: Beagle, Udoo, RPi2 etc.
else ifeq ($(target.arch), arm)
arch.c.flags = -march=armv7-a -mfpu=vfpv3 -mfloat-abi=hard
# ARMv8 64 bit, not tested yet
else ifeq ($(target.arch), aarch64)
arch.c.flags = -mcpu=cortex-a53
# Intel 32 bit, build with SSE and SSE2 instructions
else ifneq ($(filter i%86, $(target.arch)),)
arch.c.flags = -march=pentium4 -mfpmath=sse -msse -msse2
# Intel/AMD 64 bit, build with SSE, SSE2 and SSE3 instructions
else ifeq ($(target.arch), x86_64)
arch.c.flags = -march=core2 -mfpmath=sse -msse -msse2 -msse3
# if none of the above architectures detected
else
arch.c.flags =
endif
#=== flags and paths for Linux =================================================
ifeq ($(system), Linux)
prefix = /usr/local
libdir := $(prefix)/lib
pkglibdir = $(libdir)/pd-externals
pdincludepath := $(wildcard /usr/include/pd)
extension = pd_linux
cpp.flags := -DUNIX
c.flags := -fPIC
c.ldflags := -rdynamic -shared -fPIC -Wl,-rpath,"\$$ORIGIN",--enable-new-dtags
c.ldlibs := -lc -lm
cxx.flags := -fPIC -fcheck-new
cxx.ldflags := -rdynamic -shared -fPIC -Wl,-rpath,"\$$ORIGIN",--enable-new-dtags
cxx.ldlibs := -lc -lm -lstdc++
shared.extension = so
shared.ldflags = -rdynamic -fPIC -shared -Wl,-soname,$(shared.lib)
endif
#=== flags and paths for Darwin ================================================
# LLVM-clang doesn't support -fcheck-new, therefore this flag is only used when
# compiling with g++.
ifeq ($(system), Darwin)
pkglibdir = $(HOME)/Library/Pd
pdincludepath := $(firstword $(wildcard \
/Applications/Pd*.app/Contents/Resources/src))
extension = pd_darwin
cpp.flags := -DUNIX -DMACOSX -I /sw/include
c.flags :=
c.ldflags := -undefined suppress -flat_namespace -bundle
c.ldlibs := -lc
cxx.ldflags := -undefined suppress -flat_namespace -bundle
cxx.ldlibs := -lc
shared.extension = dylib
shared.ldflags = -dynamiclib -undefined dynamic_lookup \
-install_name @loader_path/$(shared.lib) \
-compatibility_version 1 -current_version 1.0
ifneq ($(filter %g++, $(CXX)),)
cxx.flags := -fcheck-new
endif
ifeq ($(extension), d_fat)
arch := i386 x86_64
else
arch := $(target.arch)
endif
ifneq ($(filter -mmacosx-version-min=%, $(cflags)),)
version.flag := $(filter -mmacosx-version-min=%, $(cflags))
else
version.flag = -mmacosx-version-min=10.6
endif
arch.c.flags := $(addprefix -arch , $(arch)) $(version.flag)
arch.ld.flags := $(arch.c.flags)
endif
#=== flags and paths for Windows ===============================================
# Standard paths on Windows contain spaces, and GNU make functions treat such
# paths as lists, with unintended effects. Therefore we must use shell function
# ls instead of make's wildcard when probing for a path, and use double quotes
# when specifying a path in a command argument.
# Default paths in Mingw / Mingw-w64 environments. 'PROGRAMFILES' is standard
# location for builds with native architecture, 'ProgramFiles(x86)' for i686
# builds on x86_64 Windows (detection method by Lucas Cordiviola). Curly braces
# required because of parentheses in variable name.
ifeq ($(system), Windows)
pkglibdir := $(APPDATA)/Pd
ifeq ($(target.arch), i686)
programfiles := ${ProgramFiles(x86)}
else
programfiles := $(PROGRAMFILES)
endif
pdbinpath := $(programfiles)/Pd/bin
pdincludepath := $(programfiles)/Pd/src
endif
# Store default path to pd.dll in PDBINDIR if the latter is not user-defined.
# For include path this is done in the platform-independent paths section below,
# but for PDBINDIR it is done here so ld flags can be evaluated as immediate
# variables.
ifeq ($(system), Windows)
ifdef PDDIR
PDBINDIR := $(PDDIR)/bin
endif
PDBINDIR ?= $(pdbinpath)
endif
# TODO: decide whether -mms-bitfields should be specified.
ifeq ($(system), Windows)
cpp.flags := -DMSW -DNT
ifeq ($(target.arch), i686)
arch.c.flags := -march=pentium4 -msse -msse2 -mfpmath=sse
else ifeq ($(target.arch), x86_64)
cpp.flags := -DMSW -DNT -DPD_LONGINTTYPE=__int64
arch.c.flags := -march=core2 -msse -msse2 -msse3 -mfpmath=sse
else
arch.c.flags =
endif
extension = dll
c.flags :=
c.ldflags := -static-libgcc -shared \
-Wl,--enable-auto-import "$(PDBINDIR)/pd.dll"
c.ldlibs :=
cxx.flags := -fcheck-new
cxx.ldflags := -static-libgcc -static-libstdc++ -shared \
-Wl,--enable-auto-import "$(PDBINDIR)/pd.dll"
cxx.ldlibs :=
shared.extension = dll
shared.ldflags := -static-libgcc -shared "$(PDBINDIR)/pd.dll"
stripflags = --strip-all
endif
#=== paths =====================================================================
# Platform-dependent default paths are specified above, but overridable.
# Path variables in upper case can be defined as make command argument or in the
# environment. Variable 'objectsdir' is supported for compatibility with
# the build system that pd-l2ork has inherited from pd-extended.
PDINCLUDEDIR ?= $(pdincludepath)
PDLIBDIR ?= $(firstword $(objectsdir) $(pkglibdir))
ifdef PDDIR
PDINCLUDEDIR := $(wildcard $(PDDIR)/src)
endif
# base path where all components of the lib will be installed by default
installpath := $(DESTDIR)$(PDLIBDIR)/$(lib.name)
# check if include path contains spaces (as is often the case on Windows)
# if so, store the path so we can later do checks with it
pdincludepathwithspaces := $(if $(word 2, $(PDINCLUDEDIR)), $(PDINCLUDEDIR))
#=== accumulated build flags ===================================================
# From GNU make docs: 'Users expect to be able to specify CFLAGS freely
# themselves.' So we use CFLAGS to define options which are not strictly
# required for compilation: optimizations, architecture specifications, and
# warnings. CFLAGS can be safely overriden using a make command argument.
# Variables cflags, ldflags and ldlibs may be defined in including makefile.
optimization.flags = -O3 -ffast-math -funroll-loops -fomit-frame-pointer
warn.flags = -Wall -Wextra -Wshadow -Winline -Wstrict-aliasing
# suppress -Wunused-variable & Co if you don't want to clutter a build log
ifdef suppress-wunused
warn.flags += $(addprefix -Wno-unused-, function parameter value variable)
endif
CFLAGS = $(warn.flags) $(optimization.flags) $(arch.c.flags)
# preprocessor flags
cpp.flags := -DPD -I "$(PDINCLUDEDIR)" $(cpp.flags) $(CPPFLAGS)
# flags for dependency checking (cflags from makefile may define -I options)
depcheck.flags := $(cpp.flags) $(cflags)
# architecture specifications for linker are overridable by LDFLAGS
LDFLAGS := $(arch.ld.flags)
# now add the same ld flags to shared dynamic lib
shared.ldflags += $(LDFLAGS)
# accumulated flags for C compiler / linker
c.flags := $(cpp.flags) $(c.flags) $(cflags) $(CFLAGS)
c.ldflags := $(c.ldflags) $(ldflags) $(LDFLAGS)
c.ldlibs := $(c.ldlibs) $(ldlibs)
# accumulated flags for C++ compiler / linker
cxx.flags := $(cpp.flags) $(cxx.flags) $(cflags) $(CFLAGS)
cxx.ldflags := $(cxx.ldflags) $(ldflags) $(LDFLAGS)
cxx.ldlibs := $(cxx.ldlibs) $(ldlibs)
################################################################################
### variables: library name and version ########################################
################################################################################
# strip possibles spaces from lib.name, they mess up calculated file names
lib.name := $(strip $(lib.name))
# if meta file exists, check library version
metafile := $(wildcard $(lib.name)-meta.pd)
ifdef metafile
lib.version := $(shell sed -n \
's|^\#X text [0-9][0-9]* [0-9][0-9]* VERSION \(.*\);|\1|p' \
$(metafile))
endif
################################################################################
### variables: files ###########################################################
################################################################################
#=== sources ===================================================================
# (re)define <classname>.class.sources using file names in class.sources
define add-class-source
$(notdir $(basename $v)).class.sources += $v
endef
$(foreach v, $(class.sources), $(eval $(add-class-source)))
# derive class names from <classname>.class.sources variables
sourcevariables := $(filter %.class.sources, $(.VARIABLES))
classes := $(basename $(basename $(sourcevariables)))
# accumulate all source files specified in makefile
classes.sources := $(sort $(foreach v, $(sourcevariables), $($v)))
all.sources := $(classes.sources) $(lib.setup.sources) \
$(shared.sources) $(common.sources)
#=== object files ==============================================================
# construct object filenames from all C and C++ source file names
classes.objects := $(addsuffix .o, $(basename $(classes.sources)))
common.objects := $(addsuffix .o, $(basename $(common.sources)))
shared.objects := $(addsuffix .o, $(basename $(shared.sources)))
lib.setup.objects := $(addsuffix .o, $(basename $(lib.setup.sources)))
all.objects = $(classes.objects) $(common.objects) $(shared.objects) \
$(lib.setup.objects)
#=== executables ===============================================================
# construct class executable names from class names
classes.executables := $(addsuffix .$(extension), $(classes))
# Construct shared lib executable name if shared sources are defined. If
# extension and shared extension are not identical, use both to facilitate co-
# installation for different platforms, like .m_i386.dll and .m_amd64.dll.
ifdef shared.sources
ifeq ($(extension), $(shared.extension))
shared.lib = lib$(lib.name).$(shared.extension)
else
shared.lib = lib$(lib.name).$(extension).$(shared.extension)
endif
else
shared.lib :=
endif
################################################################################
### variables: tools ###########################################################
################################################################################
# aliases so we can later define 'compile-$1' and set 'c' or 'cxx' as argument
compile-c := $(CC)
compile-cxx := $(CXX)
################################################################################
### checks #####################################################################
################################################################################
# At this point most variables are defined. Now do some checks and info's
# before rules begin.
# print Makefile.pdlibbuilder version before possible termination
$(info ++++ info: using Makefile.pdlibbuilder version $(version))
# Terminate if target triplet remained empty, to avoid all sorts of confusing
# scenarios and spurious bugs.
ifeq ($(target.triplet),)
$(error Command "$(CC) -dumpmachine" did not return a target triplet, \
needed for a build. \
Is compiler "$(CC)" installed in your PATH? ($(PATH)). \
Does compiler "$(CC)" support option "-dumpmachine"?)
endif
# 'forward declaration' of default target, needed to do checks
all:
# To avoid unpredictable results, make sure the default target is not redefined
# by including makefile.
ifneq ($(.DEFAULT_GOAL), all)
$(error Default target must be 'all'.)
endif
# find out which target(s) will be made
ifdef MAKECMDGOALS
goals := $(MAKECMDGOALS)
else
goals := all
endif
# store path to Pd API m_pd.h if it is found
ifdef PDINCLUDEDIR
mpdh := $(shell ls "$(PDINCLUDEDIR)/m_pd.h")
endif
# store path to pd.dll; if not found, ls will give a useful error
ifeq ($(system), Windows)
pddll := $(shell ls "$(PDBINDIR)/pd.dll")
endif
# when making target all, check if m_pd.h is found and print info about it
ifeq ($(goals), all)
$(if $(mpdh), \
$(info ++++ info: using Pd API $(mpdh)), \
$(warning Where is Pd API m_pd.h? Do 'make help' for info.))
endif
# print target info
$(info ++++ info: making target $(goals) $(if $(lib.name),in lib $(lib.name)))
# when installing, print installpath info
$(if $(filter install install-lib, $(goals)), $(info ++++ info: \
installpath is '$(installpath)'))
#=== define executables ========================================================
# By default we build class executables, and optionally a shared dynamic link
# lib. When make-lib-executable=yes we build all classes into a single lib
# executable, on the condition that variable lib.setup.sources is defined.
ifeq ($(make-lib-executable),yes)
$(if $(lib.setup.sources), ,\
$(error Can not build library blob because lib.setup.sources is undefined))
executables := $(lib.name).$(extension)
else
executables := $(classes.executables) $(shared.lib)
endif
################################################################################
### rules: special targets #####################################################
################################################################################
# Disable built-in rules. If some target can't be built with the specified
# rules, it should not be built at all.
MAKEFLAGS += --no-builtin-rules
.PRECIOUS:
.SUFFIXES:
.PHONY: all post build-lib \
$(classes) $(makefiledirs) $(makefiles) \
install install-executables install-datafiles install-datadirs \
force clean vars allvars depend help
################################################################################
### rules: build targets #######################################################
################################################################################
# Target all forces the build of targets [$(executables) post] in
# deterministic order. Target $(executables) builds class executables plus
# optional shared lib or alternatively a single lib executable when
# make-lib-executable=true. Target post is optionally defined by
# library makefile.
all: post
post: $(executables)
all:
$(info ++++info: target all in lib $(lib.name) completed)
# build all with -g option turned on for debug symbols
alldebug: c.flags += -g
alldebug: cxx.flags += -g
alldebug: all
#=== class executable ==========================================================
# recipe for linking objects in class executable
# argument $1 = compiler type (c or cxx)
# argument $2 = class basename
define link-class
$(compile-$1) \
$($1.ldflags) $($2.class.ldflags) \
-o $2.$(extension) \
$(addsuffix .o, $(basename $($2.class.sources))) \
$(addsuffix .o, $(basename $(common.sources))) \
$($1.ldlibs) $($2.class.ldlibs) $(shared.lib)
endef
# general rule for linking object files in class executable
%.$(extension): $(shared.lib)
$(info ++++ info: linking objects in $@ for lib $(lib.name))
$(if $(filter %.cc %.cpp, $($*.class.sources)), \
$(call link-class,cxx,$*), \
$(call link-class,c,$*))
#=== library blob ==============================================================
# build all classes into single executable
build-lib: $(lib.name).$(extension)
$(info ++++ info: library blob $(lib.name).$(extension) completed)
# recipe for linking objects in lib executable
# argument $1 = compiler type (c or cxx)
define link-lib
$(compile-$1) \
$($1.ldflags) $(lib.ldflags) \
-o $(lib.name).$(extension) $(all.objects) \
$($1.ldlibs) $(lib.ldlibs)
endef
# rule for linking objects in lib executable
# declared conditionally to avoid name clashes
ifeq ($(make-lib-executable),yes)
$(lib.name).$(extension): $(all.objects)
$(if $(filter %.cc %.cpp, $(all.sources)), \
$(call link-lib,cxx), \
$(call link-lib,c))
endif
#=== shared dynamic lib ========================================================
# recipe for linking objects in shared executable
# argument $1 = compiler type (c or cxx)
define link-shared
$(compile-$1) \
$(shared.ldflags) \
-o $(shared.lib) $(shared.objects) \
$($1.ldlibs) $(shared.ldlibs)
endef
# rule for linking objects in shared executable
# build recipe is in macro 'link-shared'
$(shared.lib): $(shared.objects)
$(info ++++ info: linking objects in shared lib $@)
$(if $(filter %.cc %.cpp, $(shared.sources)), \
$(call link-shared,cxx), \
$(call link-shared,c))
#=== object files ==============================================================
# recipe to make .o file from source
# argument $1 is compiler type (c or cxx)
define make-object-file
$(info ++++ info: making $@ in lib $(lib.name))
$(compile-$1) \
$($1.flags) \
-o $@ -c $<
endef
# Three rules to create .o files. These are double colon 'terminal' rules,
# meaning they are the last in a rules chain.
%.o:: %.c
$(call make-object-file,c)
%.o:: %.cc
$(call make-object-file,cxx)
%.o:: %.cpp
$(call make-object-file,cxx)
#=== explicit prerequisites for class executables ==============================
# For class executables, prerequisite rules are declared in run time. Target
# 'depend' prints these rules for debugging purposes.
# declare explicit prerequisites rule like 'class: class.extension'
# argument $v is class basename
define declare-class-target
$v: $v.$(extension)
endef
# declare explicit prerequisites rule like 'class.extension: object1.o object2.o'
# argument $v is class basename
define declare-class-executable-target
$v.$(extension): $(addsuffix .o, $(basename $($v.class.sources))) \
$(addsuffix .o, $(basename $(common.sources)))
endef
# evaluate explicit prerequisite rules for all classes
$(foreach v, $(classes), $(eval $(declare-class-target)))
$(foreach v, $(classes), $(eval $(declare-class-executable-target)))
#=== implicit prerequisites for class executables ==============================
# Evaluating implicit prerequisites (header files) with help from the
# preprocessor is 'expensive' so this is done conditionally and selectively.
# Note that it is also possible to trigger a build via install targets, in
# which case implicit prerequisites are not checked.
# When the Pd include path contains spaces it will mess up the implicit
# prerequisites rules.
disable-dependency-tracking := $(strip $(pdincludepathwithspaces))
ifndef disable-dependency-tracking
must-build-everything := $(filter all, $(goals))
must-build-class := $(filter $(classes), $(goals))