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Old 8th February 2011
J65nko J65nko is online now
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Default Ninja, a replacement for make, in Chrome's build system

From http://www.h-online.com/open/news/it...m-1185529.html

Quote:
After becoming dissatisfied during the development of Chrome with the performance of the Unix make, the standard program for generating executable programs, Evan Martin has developed Ninja as an alternative. The code for the free tool has now been made available on Github with the agreement of Martin's employer, Google.
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Old 9th February 2011
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Speed is not a holy grail. And is only one dimension in the overall quality of a software package.
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Old 12th February 2011
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As long as it's better than scons. And I don't mean in the speed department.
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Thou shalt check the array bounds of all strings (indeed, all arrays), for surely where thou typest ``foo'' someone someday shall type ``supercalifragilisticexpialidocious''.
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Old 12th February 2011
Mr-Biscuit Mr-Biscuit is offline
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Quote:
Originally Posted by Carpetsmoker View Post
Speed is not a holy grail. .

I believe the reaction of most people on speed is:

Quote:
Originally Posted by Jim
Holee sheeeet, boy. Ah can fly.
Quote:
Originally Posted by Bob
Ahm glad. Now fly your fool aayuss outta heeyah!

Credit the decision to:
Pavlovian conditioning.
Appeal to culture.
Covetness .
Greed.
Impatience.
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Old 12th February 2011
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Quote:
Originally Posted by TerryP View Post
As long as it's better than scons. And I don't mean in the speed department.
I always enjoyed using scons ... What's so wrong about it?
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Old 13th February 2011
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Well for the kind of way *I* like to do C/C++ builds, it's rather a pile of shiat.

I like to have a directory OUT of source tree for storing object files, a directory or two for source (depending on whether there are any external headers), plus a separate folder to place the files that need to be "Distributed" in. I also like to use the same build instructions for EACH toolkit and OS when possible.

This usually leads to a tree that looks like:

Code:
ProjectName/
  README
  HACKING
  COPYING
  include/
    external include files to go in $PREFIX/include/ and be used like "#include <projectname/filename.ext>" in the projects own source.
  source/  # or src
    module name/
      source and internal headers for this module
  build/
    config/
      arch/
        toolkit name/
          osname/
            module name/
              object files created from building that module for the given configuration (e.g. release, debug, etc) for the given arch and OS.
  dist/
    config/
      arch/
        toolkit name/
          osname/
            everything needed to run in that environment

Trying to do that with scons took about 3 days of abuse and more than a few kludges to deal with platform specific issues it should have handled itself. By that, I mean it knowing how to compile/link stuff with the correct smarts enough that I'm not better off writing the whole thing as a perl script.
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Old 14th February 2011
J65nko J65nko is online now
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If you never ran 'make' with debugging flags, you will be astonished what is been done behind the scenes.

For example, take the following simple Makefile:
Code:
.SUFFIXES       : .html .txt 

# for the transformation of *.txt file to .html files :

.txt.html :
        cat ${.IMPSRC} > ${.TARGET}

clean:
        rm -f *.html
First two suffixes are defined : '.html' and '.txt'. Then a rule for transforming files with suffix '.txt' to files with suffix ".html'. For a test it just does a simple 'cat'.

Running make with the debug all options make -dA aap.html produces the following whopping 928 lines of debugging output:
Code:
     1	global:.MAKEFLAGS =  -d
     2	global:.MAKEFLAGS =  -d A
     3	global:.MAKEFLAGS =  -d A 
     4	global:.TARGETS = aap.html
     5	Caching /usr/share/mk...done
     6	expanding "sys.mk".../usr/share/mk/sys.mk 
     7	global:MAKEFILE = /usr/share/mk/sys.mk
     8	global:unix = We run OpenBSD.
     9	global:OSMAJOR = 4
    10	global:OSMINOR = 7
    11	global:OSREV = $(OSMAJOR).$(OSMINOR)
    12	global:OSrev = $(OSMAJOR)$(OSMINOR)
    13	global:AR = ar
    14	global:ARFLAGS = rl
    15	global:RANLIB = ranlib
    16	global:LORDER = lorder
    17	global:AS = as
    18	global:AFLAGS = ${DEBUG}
    19	global:COMPILE.s = ${CC} ${AFLAGS} -c
    20	global:LINK.s = ${CC} ${AFLAGS} ${LDFLAGS}
    21	global:COMPILE.S = ${CC} ${AFLAGS} ${CPPFLAGS} -c
    22	global:LINK.S = ${CC} ${AFLAGS} ${CPPFLAGS} ${LDFLAGS}
    23	global:CC = cc
    24	global:PIPE = -pipe
    25	global:CFLAGS = -O2 ${PIPE} ${DEBUG}
    26	global:COMPILE.c = ${CC} ${CFLAGS} ${CPPFLAGS} -c
    27	global:LINK.c = ${CC} ${CFLAGS} ${CPPFLAGS} ${LDFLAGS}
    28	global:HOSTCC = cc
    29	global:CXX = c++
    30	global:CXXFLAGS = ${CFLAGS}
    31	global:COMPILE.cc = ${CXX} ${CXXFLAGS} ${CPPFLAGS} -c
    32	global:LINK.cc = ${CXX} ${CXXFLAGS} ${CPPFLAGS} ${LDFLAGS}
    33	global:CPP = cpp
    34	global:CPPFLAGS = 
    35	global:FC = f77
    36	global:FFLAGS = -O2
    37	global:RFLAGS = 
    38	global:COMPILE.f = ${FC} ${FFLAGS} -c
    39	global:LINK.f = ${FC} ${FFLAGS} ${LDFLAGS}
    40	global:COMPILE.F = ${FC} ${FFLAGS} ${CPPFLAGS} -c
    41	global:LINK.F = ${FC} ${FFLAGS} ${CPPFLAGS} ${LDFLAGS}
    42	global:COMPILE.r = ${FC} ${FFLAGS} ${RFLAGS} -c
    43	global:LINK.r = ${FC} ${FFLAGS} ${RFLAGS} ${LDFLAGS}
    44	global:LEX = lex
    45	global:LFLAGS = 
    46	global:LEX.l = ${LEX} ${LFLAGS}
    47	global:LD = ld
    48	global:LDFLAGS = ${DEBUG}
    49	global:LINT = lint
    50	global:LINTFLAGS = -hx
    51	global:PC = pc
    52	global:PFLAGS = 
    53	global:COMPILE.p = ${PC} ${PFLAGS} ${CPPFLAGS} -c
    54	global:LINK.p = ${PC} ${PFLAGS} ${CPPFLAGS} ${LDFLAGS}
    55	global:YACC = yacc
    56	global:YFLAGS = -d
    57	global:YACC.y = ${YACC} ${YFLAGS}
    58	global:INSTALL = install
    59	global:CTAGS = /usr/bin/ctags
    60	defining transformation from `.c' to `'
    61	defining transformation from `.c' to `.o'
    62	defining transformation from `.c' to `.a'
    63	defining transformation from `.c' to `.ln'
    64	defining transformation from `.cc' to `'
    65	defining transformation from `.cc' to `.o'
    66	defining transformation from `.cc' to `.a'
    67	defining transformation from `.C' to `'
    68	defining transformation from `.C' to `.o'
    69	defining transformation from `.C' to `.a'
    70	defining transformation from `.cxx' to `'
    71	defining transformation from `.cxx' to `.o'
    72	defining transformation from `.cxx' to `.a'
    73	defining transformation from `.f' to `'
    74	defining transformation from `.f' to `.o'
    75	defining transformation from `.f' to `.a'
    76	defining transformation from `.F' to `'
    77	defining transformation from `.F' to `.o'
    78	defining transformation from `.F' to `.a'
    79	defining transformation from `.r' to `'
    80	defining transformation from `.r' to `.o'
    81	defining transformation from `.r' to `.a'
    82	defining transformation from `.p' to `'
    83	defining transformation from `.p' to `.o'
    84	defining transformation from `.p' to `.a'
    85	defining transformation from `.s' to `'
    86	defining transformation from `.s' to `.o'
    87	defining transformation from `.s' to `.a'
    88	defining transformation from `.S' to `'
    89	defining transformation from `.S' to `.o'
    90	defining transformation from `.S' to `.a'
    91	defining transformation from `.l' to `'
    92	defining transformation from `.l' to `.c'
    93	defining transformation from `.l' to `.o'
    94	defining transformation from `.l' to `.ln'
    95	defining transformation from `.y' to `'
    96	defining transformation from `.y' to `.c'
    97	defining transformation from `.y' to `.o'
    98	defining transformation from `.y' to `.ln'
    99	defining transformation from `.sh' to `'
   100	Searching for BSDmakefile...failed.
   101	Searching for BSDmakefile.../usr/share/mk...failed.
   102	Searching for makefile...failed.
   103	Searching for makefile.../usr/share/mk...failed.
   104	global:MAKEFILE = Makefile
   105	defining transformation from `.txt' to `.html'
   106	Searching for .depend...failed.
   107	Searching for .depend.../usr/share/mk...failed.
   108	global:MFLAGS =   -d A 
   109	global:.INCLUDES = 
   110	global:.LIBS = 
   111	inserting .c(5)...at end of list
   112	inserting .a(2)...at end of list
   113	inserting .s(14)...at end of list
   114	inserting .o(4)...at end of list
   115	inserting .f(10)...at end of list
   116	inserting .a(2)...at end of list
   117	inserting .S(15)...at end of list
   118	inserting .o(4)...at end of list
   119	inserting .S(15)...at end of list
   120	inserting .a(2)...before .o(4)
   121	inserting .y(12)...before .s(14)
   122	inserting .o(4)...at end of list
   123	inserting .p(17)...at end of list
   124	inserting (0)...at end of list
   125	inserting .r(11)...before .p(17)
   126	inserting (0)...at end of list
   127	inserting .s(14)...before .p(17)
   128	inserting (0)...before .o(4)
   129	inserting .C(7)...before .y(12)
   130	inserting .o(4)...at end of list
   131	inserting .cc(6)...before .r(11)
   132	inserting (0)...at end of list
   133	inserting .C(7)...before .f(10)
   134	inserting .a(2)...before .o(4)
   135	inserting .l(13)...before .s(14)
   136	inserting (0)...at end of list
   137	inserting .p(17)...at end of list
   138	inserting .a(2)...at end of list
   139	inserting .p(17)...at end of list
   140	inserting .o(4)...at end of list
   141	inserting .txt(22)...at end of list
   142	inserting .html(21)...at end of list
   143	inserting .cxx(8)...before .f(10)
   144	inserting .a(2)...at end of list
   145	inserting .f(10)...before .y(12)
   146	inserting .o(4)...at end of list
   147	inserting .c(5)...before .cc(6)
   148	inserting (0)...before .a(2)
   149	inserting .y(12)...before .l(13)
   150	inserting (0)...before .o(4)
   151	inserting .f(10)...before .r(11)
   152	inserting (0)...before .a(2)
   153	inserting .sh(19)...at end of list
   154	inserting (0)...at end of list
   155	inserting .l(13)...before .s(14)
   156	inserting .o(4)...at end of list
   157	inserting .l(13)...at end of list
   158	inserting .c(5)...at end of list
   159	inserting .cc(6)...before .C(7)
   160	inserting .o(4)...at end of list
   161	inserting .cxx(8)...before .f(10)
   162	inserting (0)...before .a(2)
   163	inserting .cc(6)...before .C(7)
   164	inserting .a(2)...before .o(4)
   165	inserting .F(9)...before .f(10)
   166	inserting .o(4)...at end of list
   167	inserting .S(15)...before .p(17)
   168	inserting (0)...before .a(2)
   169	inserting .F(9)...before .f(10)
   170	inserting .a(2)...before .o(4)
   171	inserting .y(12)...before .l(13)
   172	inserting .c(5)...at end of list
   173	inserting .cxx(8)...before .F(9)
   174	inserting .o(4)...at end of list
   175	inserting .y(12)...at end of list
   176	inserting .ln(3)...before .o(4)
   177	inserting .c(5)...before .y(12)
   178	inserting .ln(3)...at end of list
   179	inserting .l(13)...at end of list
   180	inserting .ln(3)...before .o(4)
   181	inserting .r(11)...before .y(12)
   182	inserting .o(4)...at end of list
   183	inserting .s(14)...before .S(15)
   184	inserting .a(2)...before .o(4)
   185	inserting .r(11)...before .s(14)
   186	inserting .a(2)...before .o(4)
   187	inserting .C(7)...before .cxx(8)
   188	inserting (0)...before .a(2)
   189	inserting .c(5)...before .cc(6)
   190	inserting .o(4)...at end of list
   191	inserting .F(9)...before .f(10)
   192	inserting (0)...before .a(2)
   193	#*** Input graph:
   194	#
   195	.SUFFIXES       : 
   196	
   197	
   198	#
   199	.LIBS           : 
   200	
   201	
   202	#
   203	clean           : 
   204		rm -f *.html
   205	
   206	
   207	
   208	
   209	#
   210	#   Files that are only sources:
   211	#*** Global Variables:
   212	LEX.l            = ${LEX} ${LFLAGS}
   213	SHELL            = /bin/sh
   214	.MAKE            = make
   215	.INCLUDES        = 
   216	.MAKEFLAGS       =  -d A 
   217	OSMAJOR          = 4
   218	.CURDIR          = /home/j65nko/MAKE
   219	.LIBS            = 
   220	MACHINE          = amd64
   221	OSrev            = $(OSMAJOR)$(OSMINOR)
   222	PC               = pc
   223	CXX              = c++
   224	CPP              = cpp
   225	LINK.cc          = ${CXX} ${CXXFLAGS} ${CPPFLAGS} ${LDFLAGS}
   226	YACC.y           = ${YACC} ${YFLAGS}
   227	PFLAGS           = 
   228	RFLAGS           = 
   229	CC               = cc
   230	AR               = ar
   231	AS               = as
   232	YFLAGS           = -d
   233	FC               = f77
   234	FFLAGS           = -O2
   235	MAKEFILE         = Makefile
   236	AFLAGS           = ${DEBUG}
   237	CFLAGS           = -O2 ${PIPE} ${DEBUG}
   238	LFLAGS           = 
   239	MFLAGS           =   -d A 
   240	LD               = ld
   241	LEX              = lex
   242	PIPE             = -pipe
   243	.OBJDIR          = /home/j65nko/MAKE
   244	MAKE             = make
   245	COMPILE.cc       = ${CXX} ${CXXFLAGS} ${CPPFLAGS} -c
   246	LINK.F           = ${FC} ${FFLAGS} ${CPPFLAGS} ${LDFLAGS}
   247	unix             = We run OpenBSD.
   248	LORDER           = lorder
   249	COMPILE.c        = ${CC} ${CFLAGS} ${CPPFLAGS} -c
   250	COMPILE.f        = ${FC} ${FFLAGS} -c
   251	.TARGETS         = aap.html
   252	COMPILE.p        = ${PC} ${PFLAGS} ${CPPFLAGS} -c
   253	COMPILE.r        = ${FC} ${FFLAGS} ${RFLAGS} -c
   254	COMPILE.s        = ${CC} ${AFLAGS} -c
   255	LINTFLAGS        = -hx
   256	LINK.r           = ${FC} ${FFLAGS} ${RFLAGS} ${LDFLAGS}
   257	COMPILE.F        = ${FC} ${FFLAGS} ${CPPFLAGS} -c
   258	COMPILE.S        = ${CC} ${AFLAGS} ${CPPFLAGS} -c
   259	OSMINOR          = 7
   260	LINK.S           = ${CC} ${AFLAGS} ${CPPFLAGS} ${LDFLAGS}
   261	LINK.c           = ${CC} ${CFLAGS} ${CPPFLAGS} ${LDFLAGS}
   262	LINK.f           = ${FC} ${FFLAGS} ${LDFLAGS}
   263	LINK.p           = ${PC} ${PFLAGS} ${CPPFLAGS} ${LDFLAGS}
   264	CXXFLAGS         = ${CFLAGS}
   265	LINK.s           = ${CC} ${AFLAGS} ${LDFLAGS}
   266	LINT             = lint
   267	VPATH           (D) = (none)
   268	EXTRA_SYS_MK_INCLUDES(D) = (none)
   269	YACC             = yacc
   270	MACHINE_ARCH     = amd64
   271	RANLIB           = ranlib
   272	CPPFLAGS         = 
   273	ARFLAGS          = rl
   274	CTAGS            = /usr/bin/ctags
   275	INSTALL          = install
   276	LDFLAGS          = ${DEBUG}
   277	OSREV            = $(OSMAJOR).$(OSMINOR)
   278	HOSTCC           = cc
   279	MACHINE_CPU      = amd64
   280	
   281	#*** Suffixes:
   282	# `.h'  ()
   283	#	To: 
   284	#	From: 
   285	#	Search Path: 
   286	# `.out'  ()
   287	#	To: 
   288	#	From: 
   289	#	Search Path: 
   290	# `.cl'  ()
   291	#	To: 
   292	#	From: 
   293	#	Search Path: 
   294	# `.sh'  ()
   295	#	To:  
   296	#	From: 
   297	#	Search Path: 
   298	# `.s'  ()
   299	#	To:  .a .o 
   300	#	From: 
   301	#	Search Path: 
   302	# `.r'  ()
   303	#	To:  .a .o 
   304	#	From: 
   305	#	Search Path: 
   306	# `.f'  ()
   307	#	To:  .a .o 
   308	#	From: 
   309	#	Search Path: 
   310	# `.y'  ()
   311	#	To:  .ln .o .c 
   312	#	From: 
   313	#	Search Path: 
   314	# `.o'  ()
   315	#	To: 
   316	#	From: .c .cc .C .cxx .F .f .r .y .l .s .S .p 
   317	#	Search Path: 
   318	# `.p'  ()
   319	#	To:  .a .o 
   320	#	From: 
   321	#	Search Path: 
   322	# `.html'  ()
   323	#	To: 
   324	#	From: .txt 
   325	#	Search Path: 
   326	# `.l'  ()
   327	#	To:  .ln .o .c 
   328	#	From: 
   329	#	Search Path: 
   330	# `.a'  (LIBRARY|)
   331	#	To: 
   332	#	From: .c .cc .C .cxx .F .f .r .s .S .p 
   333	#	Search Path: 
   334	# `.cc'  ()
   335	#	To:  .a .o 
   336	#	From: 
   337	#	Search Path: 
   338	# `.S'  ()
   339	#	To:  .a .o 
   340	#	From: 
   341	#	Search Path: 
   342	# `.F'  ()
   343	#	To:  .a .o 
   344	#	From: 
   345	#	Search Path: 
   346	# `.C'  ()
   347	#	To:  .a .o 
   348	#	From: 
   349	#	Search Path: 
   350	# `.m4'  ()
   351	#	To: 
   352	#	From: 
   353	#	Search Path: 
   354	# `.ln'  ()
   355	#	To: 
   356	#	From: .c .y .l 
   357	#	Search Path: 
   358	# `.c'  ()
   359	#	To:  .a .ln .o 
   360	#	From: .y .l 
   361	#	Search Path: 
   362	# `.txt'  ()
   363	#	To: .html 
   364	#	From: 
   365	#	Search Path: 
   366	# `.PATH'  (|)
   367	#	To: 
   368	#	From: 
   369	#	Search Path: 
   370	# `.cxx'  ()
   371	#	To:  .a .o 
   372	#	From: 
   373	#	Search Path: 
   374	#*** Transformations:
   375	.c.a            : 
   376		${COMPILE.c} ${.IMPSRC}
   377		${AR} ${ARFLAGS} $@ $*.o
   378		rm -f $*.o
   379	
   380	.s.o            : 
   381		${COMPILE.s} ${.IMPSRC}
   382	
   383	.f.a            : 
   384		${COMPILE.f} ${.IMPSRC}
   385		${AR} ${ARFLAGS} $@ $*.o
   386		rm -f $*.o
   387	
   388	.S.o            : 
   389		${COMPILE.S} ${.IMPSRC}
   390	
   391	.S.a            : 
   392		${COMPILE.S} ${.IMPSRC}
   393		${AR} ${ARFLAGS} $@ $*.o
   394		rm -f $*.o
   395	
   396	.y.o            : 
   397		${YACC.y} ${.IMPSRC}
   398		${COMPILE.c} -o ${.TARGET} y.tab.c
   399		rm -f y.tab.c
   400	
   401	.p              : 
   402		${LINK.p} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   403	
   404	.r              : 
   405		${LINK.r} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   406	
   407	.s              : 
   408		${LINK.s} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   409	
   410	.C.o            : 
   411		${COMPILE.cc} ${.IMPSRC}
   412	
   413	.cc             : 
   414		${LINK.cc} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   415	
   416	.C.a            : 
   417		${COMPILE.cc} ${.IMPSRC}
   418		${AR} ${ARFLAGS} $@ $*.o
   419		rm -f $*.o
   420	
   421	.l              : 
   422		${LEX.l} ${.IMPSRC}
   423		${LINK.c} -o ${.TARGET} lex.yy.c ${LDLIBS} -ll
   424		rm -f lex.yy.c
   425	
   426	.p.a            : 
   427		${COMPILE.p} ${.IMPSRC}
   428		${AR} ${ARFLAGS} $@ $*.o
   429		rm -f $*.o
   430	
   431	.p.o            : 
   432		${COMPILE.p} ${.IMPSRC}
   433	
   434	.txt.html       : 
   435		cat ${.IMPSRC} > ${.TARGET}
   436	
   437	.cxx.a          : 
   438		${COMPILE.cc} ${.IMPSRC}
   439		${AR} ${ARFLAGS} $@ $*.o
   440		rm -f $*.o
   441	
   442	.f.o            : 
   443		${COMPILE.f} ${.IMPSRC}
   444	
   445	.c              : 
   446		${LINK.c} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   447	
   448	.y              : 
   449		${YACC.y} ${.IMPSRC}
   450		${LINK.c} -o ${.TARGET} y.tab.c ${LDLIBS}
   451		rm -f y.tab.c
   452	
   453	.f              : 
   454		${LINK.f} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   455	
   456	.sh             : 
   457		rm -f ${.TARGET}
   458		cp ${.IMPSRC} ${.TARGET}
   459	
   460	.l.o            : 
   461		${LEX.l} ${.IMPSRC}
   462		${COMPILE.c} -o ${.TARGET} lex.yy.c
   463		rm -f lex.yy.c
   464	
   465	.l.c            : 
   466		${LEX.l} ${.IMPSRC}
   467		mv lex.yy.c ${.TARGET}
   468	
   469	.cc.o           : 
   470		${COMPILE.cc} ${.IMPSRC}
   471	
   472	.cxx            : 
   473		${LINK.cc} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   474	
   475	.cc.a           : 
   476		${COMPILE.cc} ${.IMPSRC}
   477		${AR} ${ARFLAGS} $@ $*.o
   478		rm -f $*.o
   479	
   480	.F.o            : 
   481		${COMPILE.F} ${.IMPSRC}
   482	
   483	.S              : 
   484		${LINK.S} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   485	
   486	.F.a            : 
   487		${COMPILE.F} ${.IMPSRC}
   488		${AR} ${ARFLAGS} $@ $*.o
   489		rm -f $*.o
   490	
   491	.y.c            : 
   492		${YACC.y} ${.IMPSRC}
   493		mv y.tab.c ${.TARGET}
   494	
   495	.cxx.o          : 
   496		${COMPILE.cc} ${.IMPSRC}
   497	
   498	.y.ln           : 
   499		${YACC.y} ${.IMPSRC}
   500		mv y.tab.c ${.TARGET:R}.c
   501		${LINT} ${LINTFLAGS} ${CFLAGS:M-[IDU]*} ${CPPFLAGS:M-[IDU]*} -i ${.TARGET:R}.c
   502		rm -f ${.TARGET:R}.c
   503	
   504	.c.ln           : 
   505		${LINT} ${LINTFLAGS} ${CFLAGS:M-[IDU]*} ${CPPFLAGS:M-[IDU]*} -i ${.IMPSRC}
   506	
   507	.l.ln           : 
   508		${LEX.l} ${.IMPSRC}
   509		mv lex.yy.c ${.TARGET:R}.c
   510		${LINT} ${LINTFLAGS} ${CFLAGS:M-[IDU]*} ${CPPFLAGS:M-[IDU]*} -i ${.TARGET:R}.c
   511		rm -f ${.TARGET:R}.c
   512	
   513	.r.o            : 
   514		${COMPILE.r} ${.IMPSRC}
   515	
   516	.s.a            : 
   517		${COMPILE.s} ${.IMPSRC}
   518		${AR} ${ARFLAGS} $@ $*.o
   519		rm -f $*.o
   520	
   521	.r.a            : 
   522		${COMPILE.r} ${.IMPSRC}
   523		${AR} ${ARFLAGS} $@ $*.o
   524		rm -f $*.o
   525	
   526	.C              : 
   527		${LINK.cc} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   528	
   529	.c.o            : 
   530		${COMPILE.c} ${.IMPSRC}
   531	
   532	.F              : 
   533		${LINK.F} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   534	
   535	CompatMake(NULL, aap.html)
   536	SuffFindDeps (aap.html)
   537		trying aap.txt...Searching for aap.txt...in '.'
   538	got it
   539		applying .txt -> .html to "aap.html"
   540	CompatMake(aap.html, aap.txt)
   541	SuffFindDeps (aap.txt)
   542		No known suffix on aap.txt. Using .NULL suffix
   543	adding suffix rules
   544		trying aap.txt.c...Searching for aap.txt.c...failed.
   545	not there
   546		trying aap.txt.cc...Searching for aap.txt.cc...failed.
   547	not there
   548		trying aap.txt.C...Searching for aap.txt.C...failed.
   549	not there
   550		trying aap.txt.cxx...Searching for aap.txt.cxx...failed.
   551	not there
   552		trying aap.txt.F...Searching for aap.txt.F...failed.
   553	not there
   554		trying aap.txt.f...Searching for aap.txt.f...failed.
   555	not there
   556		trying aap.txt.r...Searching for aap.txt.r...failed.
   557	not there
   558		trying aap.txt.y...Searching for aap.txt.y...failed.
   559	not there
   560		trying aap.txt.l...Searching for aap.txt.l...failed.
   561	not there
   562		trying aap.txt.s...Searching for aap.txt.s...failed.
   563	not there
   564		trying aap.txt.S...Searching for aap.txt.S...failed.
   565	not there
   566		trying aap.txt.p...Searching for aap.txt.p...failed.
   567	not there
   568		trying aap.txt.sh...Searching for aap.txt.sh...failed.
   569	not there
   570		trying aap.txt.y...Searching for aap.txt.y...failed.
   571	not there
   572		trying aap.txt.l...Searching for aap.txt.l...failed.
   573	not there
   574	Searching for aap.txt...in '.'
   575	Examining aap.txt...modified 01:57:10 Feb 14, 2011...up-to-date.
   576	Examining aap.html...non-existent...modified before source...out-of-date.
   577	cat aap.txt > aap.html
   578	update time: 03:27:35 Feb 14, 2011
   579	#*** Input graph:
   580	#
   581	# 0 unmade children
   582	# unmade
   583	.SUFFIXES       : 
   584	
   585	
   586	#
   587	# 0 unmade children
   588	# unmade
   589	.LIBS           : 
   590	
   591	
   592	#
   593	# 0 unmade children
   594	# unmade
   595	clean           : 
   596		rm -f *.html
   597	
   598	
   599	
   600	
   601	#
   602	#   Files that are only sources:
   603	#	aap.txt [aap.txt]
   604	#	aap.html [aap.html]
   605	#*** Global Variables:
   606	LEX.l            = ${LEX} ${LFLAGS}
   607	SHELL            = /bin/sh
   608	.MAKE            = make
   609	.INCLUDES        = 
   610	.MAKEFLAGS       =  -d A 
   611	OSMAJOR          = 4
   612	.CURDIR          = /home/j65nko/MAKE
   613	.LIBS            = 
   614	MACHINE          = amd64
   615	OSrev            = $(OSMAJOR)$(OSMINOR)
   616	PC               = pc
   617	CXX              = c++
   618	CPP              = cpp
   619	LINK.cc          = ${CXX} ${CXXFLAGS} ${CPPFLAGS} ${LDFLAGS}
   620	YACC.y           = ${YACC} ${YFLAGS}
   621	PFLAGS           = 
   622	RFLAGS           = 
   623	CC               = cc
   624	AR               = ar
   625	AS               = as
   626	YFLAGS           = -d
   627	FC               = f77
   628	FFLAGS           = -O2
   629	MAKEFILE         = Makefile
   630	AFLAGS           = ${DEBUG}
   631	CFLAGS           = -O2 ${PIPE} ${DEBUG}
   632	LFLAGS           = 
   633	MFLAGS           =   -d A 
   634	LD               = ld
   635	LEX              = lex
   636	PIPE             = -pipe
   637	.OBJDIR          = /home/j65nko/MAKE
   638	MAKE             = make
   639	COMPILE.cc       = ${CXX} ${CXXFLAGS} ${CPPFLAGS} -c
   640	LINK.F           = ${FC} ${FFLAGS} ${CPPFLAGS} ${LDFLAGS}
   641	unix             = We run OpenBSD.
   642	LORDER           = lorder
   643	COMPILE.c        = ${CC} ${CFLAGS} ${CPPFLAGS} -c
   644	COMPILE.f        = ${FC} ${FFLAGS} -c
   645	.TARGETS         = aap.html
   646	COMPILE.p        = ${PC} ${PFLAGS} ${CPPFLAGS} -c
   647	COMPILE.r        = ${FC} ${FFLAGS} ${RFLAGS} -c
   648	COMPILE.s        = ${CC} ${AFLAGS} -c
   649	LINTFLAGS        = -hx
   650	LINK.r           = ${FC} ${FFLAGS} ${RFLAGS} ${LDFLAGS}
   651	COMPILE.F        = ${FC} ${FFLAGS} ${CPPFLAGS} -c
   652	COMPILE.S        = ${CC} ${AFLAGS} ${CPPFLAGS} -c
   653	OSMINOR          = 7
   654	LINK.S           = ${CC} ${AFLAGS} ${CPPFLAGS} ${LDFLAGS}
   655	LINK.c           = ${CC} ${CFLAGS} ${CPPFLAGS} ${LDFLAGS}
   656	LINK.f           = ${FC} ${FFLAGS} ${LDFLAGS}
   657	LINK.p           = ${PC} ${PFLAGS} ${CPPFLAGS} ${LDFLAGS}
   658	CXXFLAGS         = ${CFLAGS}
   659	LINK.s           = ${CC} ${AFLAGS} ${LDFLAGS}
   660	LINT             = lint
   661	VPATH           (D) = (none)
   662	EXTRA_SYS_MK_INCLUDES(D) = (none)
   663	YACC             = yacc
   664	MACHINE_ARCH     = amd64
   665	RANLIB           = ranlib
   666	CPPFLAGS         = 
   667	ARFLAGS          = rl
   668	CTAGS            = /usr/bin/ctags
   669	INSTALL          = install
   670	LDFLAGS          = ${DEBUG}
   671	OSREV            = $(OSMAJOR).$(OSMINOR)
   672	HOSTCC           = cc
   673	MACHINE_CPU      = amd64
   674	
   675	#*** Suffixes:
   676	# `.h'  ()
   677	#	To: 
   678	#	From: 
   679	#	Search Path: 
   680	# `.out'  ()
   681	#	To: 
   682	#	From: 
   683	#	Search Path: 
   684	# `.cl'  ()
   685	#	To: 
   686	#	From: 
   687	#	Search Path: 
   688	# `.sh'  ()
   689	#	To:  
   690	#	From: 
   691	#	Search Path: 
   692	# `.s'  ()
   693	#	To:  .a .o 
   694	#	From: 
   695	#	Search Path: 
   696	# `.r'  ()
   697	#	To:  .a .o 
   698	#	From: 
   699	#	Search Path: 
   700	# `.f'  ()
   701	#	To:  .a .o 
   702	#	From: 
   703	#	Search Path: 
   704	# `.y'  ()
   705	#	To:  .ln .o .c 
   706	#	From: 
   707	#	Search Path: 
   708	# `.o'  ()
   709	#	To: 
   710	#	From: .c .cc .C .cxx .F .f .r .y .l .s .S .p 
   711	#	Search Path: 
   712	# `.p'  ()
   713	#	To:  .a .o 
   714	#	From: 
   715	#	Search Path: 
   716	# `.html'  ()
   717	#	To: 
   718	#	From: .txt 
   719	#	Search Path: 
   720	# `.l'  ()
   721	#	To:  .ln .o .c 
   722	#	From: 
   723	#	Search Path: 
   724	# `.a'  (LIBRARY|)
   725	#	To: 
   726	#	From: .c .cc .C .cxx .F .f .r .s .S .p 
   727	#	Search Path: 
   728	# `.cc'  ()
   729	#	To:  .a .o 
   730	#	From: 
   731	#	Search Path: 
   732	# `.S'  ()
   733	#	To:  .a .o 
   734	#	From: 
   735	#	Search Path: 
   736	# `.F'  ()
   737	#	To:  .a .o 
   738	#	From: 
   739	#	Search Path: 
   740	# `.C'  ()
   741	#	To:  .a .o 
   742	#	From: 
   743	#	Search Path: 
   744	# `.m4'  ()
   745	#	To: 
   746	#	From: 
   747	#	Search Path: 
   748	# `.ln'  ()
   749	#	To: 
   750	#	From: .c .y .l 
   751	#	Search Path: 
   752	# `.c'  ()
   753	#	To:  .a .ln .o 
   754	#	From: .y .l 
   755	#	Search Path: 
   756	# `.txt'  ()
   757	#	To: .html 
   758	#	From: 
   759	#	Search Path: 
   760	# `.PATH'  (|)
   761	#	To: 
   762	#	From: 
   763	#	Search Path: 
   764	# `.cxx'  ()
   765	#	To:  .a .o 
   766	#	From: 
   767	#	Search Path: 
   768	#*** Transformations:
   769	.c.a            : 
   770		${COMPILE.c} ${.IMPSRC}
   771		${AR} ${ARFLAGS} $@ $*.o
   772		rm -f $*.o
   773	
   774	.s.o            : 
   775		${COMPILE.s} ${.IMPSRC}
   776	
   777	.f.a            : 
   778		${COMPILE.f} ${.IMPSRC}
   779		${AR} ${ARFLAGS} $@ $*.o
   780		rm -f $*.o
   781	
   782	.S.o            : 
   783		${COMPILE.S} ${.IMPSRC}
   784	
   785	.S.a            : 
   786		${COMPILE.S} ${.IMPSRC}
   787		${AR} ${ARFLAGS} $@ $*.o
   788		rm -f $*.o
   789	
   790	.y.o            : 
   791		${YACC.y} ${.IMPSRC}
   792		${COMPILE.c} -o ${.TARGET} y.tab.c
   793		rm -f y.tab.c
   794	
   795	.p              : 
   796		${LINK.p} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   797	
   798	.r              : 
   799		${LINK.r} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   800	
   801	.s              : 
   802		${LINK.s} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   803	
   804	.C.o            : 
   805		${COMPILE.cc} ${.IMPSRC}
   806	
   807	.cc             : 
   808		${LINK.cc} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   809	
   810	.C.a            : 
   811		${COMPILE.cc} ${.IMPSRC}
   812		${AR} ${ARFLAGS} $@ $*.o
   813		rm -f $*.o
   814	
   815	.l              : 
   816		${LEX.l} ${.IMPSRC}
   817		${LINK.c} -o ${.TARGET} lex.yy.c ${LDLIBS} -ll
   818		rm -f lex.yy.c
   819	
   820	.p.a            : 
   821		${COMPILE.p} ${.IMPSRC}
   822		${AR} ${ARFLAGS} $@ $*.o
   823		rm -f $*.o
   824	
   825	.p.o            : 
   826		${COMPILE.p} ${.IMPSRC}
   827	
   828	.txt.html       : 
   829		cat ${.IMPSRC} > ${.TARGET}
   830	
   831	.cxx.a          : 
   832		${COMPILE.cc} ${.IMPSRC}
   833		${AR} ${ARFLAGS} $@ $*.o
   834		rm -f $*.o
   835	
   836	.f.o            : 
   837		${COMPILE.f} ${.IMPSRC}
   838	
   839	.c              : 
   840		${LINK.c} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   841	
   842	.y              : 
   843		${YACC.y} ${.IMPSRC}
   844		${LINK.c} -o ${.TARGET} y.tab.c ${LDLIBS}
   845		rm -f y.tab.c
   846	
   847	.f              : 
   848		${LINK.f} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   849	
   850	.sh             : 
   851		rm -f ${.TARGET}
   852		cp ${.IMPSRC} ${.TARGET}
   853	
   854	.l.o            : 
   855		${LEX.l} ${.IMPSRC}
   856		${COMPILE.c} -o ${.TARGET} lex.yy.c
   857		rm -f lex.yy.c
   858	
   859	.l.c            : 
   860		${LEX.l} ${.IMPSRC}
   861		mv lex.yy.c ${.TARGET}
   862	
   863	.cc.o           : 
   864		${COMPILE.cc} ${.IMPSRC}
   865	
   866	.cxx            : 
   867		${LINK.cc} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   868	
   869	.cc.a           : 
   870		${COMPILE.cc} ${.IMPSRC}
   871		${AR} ${ARFLAGS} $@ $*.o
   872		rm -f $*.o
   873	
   874	.F.o            : 
   875		${COMPILE.F} ${.IMPSRC}
   876	
   877	.S              : 
   878		${LINK.S} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   879	
   880	.F.a            : 
   881		${COMPILE.F} ${.IMPSRC}
   882		${AR} ${ARFLAGS} $@ $*.o
   883		rm -f $*.o
   884	
   885	.y.c            : 
   886		${YACC.y} ${.IMPSRC}
   887		mv y.tab.c ${.TARGET}
   888	
   889	.cxx.o          : 
   890		${COMPILE.cc} ${.IMPSRC}
   891	
   892	.y.ln           : 
   893		${YACC.y} ${.IMPSRC}
   894		mv y.tab.c ${.TARGET:R}.c
   895		${LINT} ${LINTFLAGS} ${CFLAGS:M-[IDU]*} ${CPPFLAGS:M-[IDU]*} -i ${.TARGET:R}.c
   896		rm -f ${.TARGET:R}.c
   897	
   898	.c.ln           : 
   899		${LINT} ${LINTFLAGS} ${CFLAGS:M-[IDU]*} ${CPPFLAGS:M-[IDU]*} -i ${.IMPSRC}
   900	
   901	.l.ln           : 
   902		${LEX.l} ${.IMPSRC}
   903		mv lex.yy.c ${.TARGET:R}.c
   904		${LINT} ${LINTFLAGS} ${CFLAGS:M-[IDU]*} ${CPPFLAGS:M-[IDU]*} -i ${.TARGET:R}.c
   905		rm -f ${.TARGET:R}.c
   906	
   907	.r.o            : 
   908		${COMPILE.r} ${.IMPSRC}
   909	
   910	.s.a            : 
   911		${COMPILE.s} ${.IMPSRC}
   912		${AR} ${ARFLAGS} $@ $*.o
   913		rm -f $*.o
   914	
   915	.r.a            : 
   916		${COMPILE.r} ${.IMPSRC}
   917		${AR} ${ARFLAGS} $@ $*.o
   918		rm -f $*.o
   919	
   920	.C              : 
   921		${LINK.cc} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   922	
   923	.c.o            : 
   924		${COMPILE.c} ${.IMPSRC}
   925	
   926	.F              : 
   927		${LINK.F} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
   928
For a comparison we first do a make clean, followed by a make -r aap.html which ignores all built-in rules from the system makefile.
This produces 134 lines of debugging output:
Code:
     1	global:.MAKEFLAGS =  -r -d
     2	global:.MAKEFLAGS =  -r -d A
     3	global:.MAKEFLAGS =  -r -d A 
     4	global:.TARGETS = aap.html
     5	Caching /usr/share/mk...done
     6	Searching for BSDmakefile...failed.
     7	Searching for BSDmakefile.../usr/share/mk...failed.
     8	Searching for makefile...failed.
     9	Searching for makefile.../usr/share/mk...failed.
    10	global:MAKEFILE = Makefile
    11	defining transformation from `.txt' to `.html'
    12	Searching for .depend...failed.
    13	Searching for .depend.../usr/share/mk...failed.
    14	global:MFLAGS =   -r -d A 
    15	global:.INCLUDES = 
    16	global:.LIBS = 
    17	inserting .txt(2)...at end of list
    18	inserting .html(1)...at end of list
    19	#*** Input graph:
    20	#
    21	.SUFFIXES       : 
    22	
    23	
    24	#
    25	clean           : 
    26		rm -f *.html
    27	
    28	
    29	
    30	
    31	#
    32	#   Files that are only sources:
    33	#*** Global Variables:
    34	SHELL            = /bin/sh
    35	.MAKE            = make
    36	.INCLUDES        = 
    37	.MAKEFLAGS       =  -r -d A 
    38	.CURDIR          = /home/j65nko/MAKE
    39	.LIBS            = 
    40	MACHINE          = amd64
    41	MAKEFILE         = Makefile
    42	MFLAGS           =   -r -d A 
    43	.OBJDIR          = /home/j65nko/MAKE
    44	MAKE             = make
    45	.TARGETS         = aap.html
    46	VPATH           (D) = (none)
    47	MACHINE_ARCH     = amd64
    48	MACHINE_CPU      = amd64
    49	
    50	#*** Suffixes:
    51	# `.html'  ()
    52	#	To: 
    53	#	From: .txt 
    54	#	Search Path: 
    55	# `.txt'  ()
    56	#	To: .html 
    57	#	From: 
    58	#	Search Path: 
    59	# `.PATH'  (|)
    60	#	To: 
    61	#	From: 
    62	#	Search Path: 
    63	#*** Transformations:
    64	.txt.html       : 
    65		cat ${.IMPSRC} > ${.TARGET}
    66	
    67	CompatMake(NULL, aap.html)
    68	SuffFindDeps (aap.html)
    69		trying aap.txt...Searching for aap.txt...in '.'
    70	got it
    71		applying .txt -> .html to "aap.html"
    72	CompatMake(aap.html, aap.txt)
    73	SuffFindDeps (aap.txt)
    74		No known suffix on aap.txt. Using .NULL suffix
    75	adding suffix rules
    76	Searching for aap.txt...in '.'
    77	Examining aap.txt...modified 01:57:10 Feb 14, 2011...up-to-date.
    78	Examining aap.html...non-existent...modified before source...out-of-date.
    79	cat aap.txt > aap.html
    80	update time: 03:28:33 Feb 14, 2011
    81	#*** Input graph:
    82	#
    83	# 0 unmade children
    84	# unmade
    85	.SUFFIXES       : 
    86	
    87	
    88	#
    89	# 0 unmade children
    90	# unmade
    91	clean           : 
    92		rm -f *.html
    93	
    94	
    95	
    96	
    97	#
    98	#   Files that are only sources:
    99	#	aap.txt [aap.txt]
   100	#	aap.html [aap.html]
   101	#*** Global Variables:
   102	SHELL            = /bin/sh
   103	.MAKE            = make
   104	.INCLUDES        = 
   105	.MAKEFLAGS       =  -r -d A 
   106	.CURDIR          = /home/j65nko/MAKE
   107	.LIBS            = 
   108	MACHINE          = amd64
   109	MAKEFILE         = Makefile
   110	MFLAGS           =   -r -d A 
   111	.OBJDIR          = /home/j65nko/MAKE
   112	MAKE             = make
   113	.TARGETS         = aap.html
   114	VPATH           (D) = (none)
   115	MACHINE_ARCH     = amd64
   116	MACHINE_CPU      = amd64
   117	
   118	#*** Suffixes:
   119	# `.html'  ()
   120	#	To: 
   121	#	From: .txt 
   122	#	Search Path: 
   123	# `.txt'  ()
   124	#	To: .html 
   125	#	From: 
   126	#	Search Path: 
   127	# `.PATH'  (|)
   128	#	To: 
   129	#	From: 
   130	#	Search Path: 
   131	#*** Transformations:
   132	.txt.html       : 
   133		cat ${.IMPSRC} > ${.TARGET}
   134
That is why I really can imagine that for the 30000 Chrome sources, a lot of cruft could be thrown out.
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Old 14th February 2011
backrow backrow is offline
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Quote:
Originally Posted by Carpetsmoker View Post
Speed is not a holy grail. And is only one dimension in the overall quality of a software package.
True. But the goal here was not to create a build system, but to create a browser. Fast turnaround time on builds is a good way to improve the development of your program. See PCC, LLVM, Google Go, and other projects who are motivated by high speed during compilation (among other things).
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