Makefile

   1 # make script to build navymail
   2 # Copyright (C) 2011  Kirill Smelkov <kirr@navytux.spb.ru>
   3 all     :
   4
   5 SPATCH  := spatch
   6
   7 # don't delete intermediate targets
   8 .SECONDARY:
   9
  10
  11 # >>> decide early, whether we are doing a clean-style target
  12 __cleaning := $(filter clean mrproper,$(MAKECMDGOALS))
  13 ifneq ($(__cleaning),)
  14   # if cleaning, ensure there is no other targets besides clean
  15   ifneq ($(filter-out $(__cleaning),$(MAKECMDGOALS)),)
  16     $(error E: target(s) "$(filter-out $(__cleaning),$(MAKECMDGOALS))" \
  17                conflict with "$(__cleaning)")
  18   endif
  19 endif
  20
  21
  22 # >>> for pretty build output
  23 ifeq ($(V),)
  24 Q       := @
  25 Qsubdir := --no-print-directory
  26 Qspatch := -very_quiet
  27
  28 QAUTOCONF       = @echo '   ' AUTOCONF $@;
  29 QCONFIGURE      = @echo '   ' CONFIGURE...;
  30 QRECONFIGURE    = @echo '   ' RECONFIGURE...;
  31 QCONFACTIVATE   = @echo '   ' GEN $@ '(+ friends)';
  32
  33 QARtweak        = @echo '   ' ARtweak $@;
  34 QSPATCH         = @echo '   ' COCCI $@;
  35 QCLEAN          = @echo '   ' CLEAN;
  36 QMRPROPER       = @echo '   ' MRPROPER;
  37 endif
  38
  39 # cocci: don't show diff until requested
  40 ifeq ($(VCOCCI),)
  41 Qspatch += -no_show_diff
  42 else
  43 # drop -very_quiet on VCOCCI=1 and automatically show diff
  44 Qspatch :=
  45 endif
  46
  47
  48
  49 # >>> before building anything, load configure findings, reconfiguring if needed
  50
  51 # NOTE configure dependencies have to be listed here explicitely
  52 configure: configure.ac scripts/mk/pkg.m4
  53         $(QAUTOCONF)autoconf --warnings=all
  54 config.status: configure
  55         $(if $(wildcard $@),\
  56                 $(QRECONFIGURE)./config.status --recheck,\
  57                 $(QCONFIGURE)./configure)
  58
  59 ifeq ($(__cleaning),)
  60 include .config.mk.autogen
  61 .config.mk.autogen : config.status .config.mk.in
  62         $(QCONFACTIVATE)./config.status
  63 endif
  64
  65 # local build tweaks could go here
  66 -include .config.mk
  67
  68
  69
  70 # >>> then, before building navymail, (re-)build Git and import build variables from its build system
  71
  72 ifeq ($(__cleaning),)
  73   git-targets := libgit.a
  74   # test depends on git targets, without which git's test-lib.sh won't run
  75   # TODO test-chmtime -> test-chmtime$X
  76   git-targets += GIT-BUILD-OPTIONS test-chmtime
  77
  78   # also test needs git/templates/blt which is put directly into recipe
  79
  80   # reconfigure goes first
  81   .config.mk.git: | .config.mk.autogen
  82 endif
  83
  84 # XXX unfortunately .PHONY makefiles are not re-read, so we have to do dirty
  85 # tricks with MAKE_RESTARTS instead -- see bugs.debian.org/614916
  86 # .PHONY: .config.mk.git
  87 ifeq ($(MAKE_RESTARTS),)
  88   # touch trick is needed to tell make to rebuild it without initial warning
  89   # reset mtime only on first make pass
  90   $(shell touch -t 197001020101 .config.mk.git)
  91   .config.mk.git        : .     # mtime of anything should be after epoch
  92 endif
  93
  94 .config.mk.git:
  95         $(Q)$(MAKE) $(Qsubdir) -C git/ -f ../scripts/mk/gitmk-proxy.mk $(git-targets) __export __export-file=../$@
  96 ifeq ($(__cleaning),)
  97         $(Q)$(MAKE) $(Qsubdir) -C git/templates
  98 endif
  99
 100 include .config.mk.git
 101
 102
 103
 104 # >>> now let's build navymail
 105
 106 CPPFLAGS:= -Igit/ -Iinclude/
 107 CC      := $(GIT_CC)
 108 CFLAGS  := $(GIT_ALL_CFLAGS) $(FUSE_CFLAGS)
 109 # lib.a -> git/lib.a , but -lsomething stays the same
 110 GIT_LIBS:= $(foreach _,$(GIT_LIBS),$(if $(filter -%,$_),$_,git/$_))
 111 X       := $(GIT_X)
 112 QUIET_CC = $(GIT_QUIET_CC)
 113
 114
 115
 116 all     : navymail$X
 117
 118 # libgit.a is tweaked a bit with here-compiled code
 119 GIT_LIBS_wo_libgit := $(filter-out git/libgit.a,$(GIT_LIBS))
 120 fromgit/libgit.a: git/libgit.a fromgit/help.o fromgit/exec_cmd.o
 121         $(QARtweak)Atmp=`mktemp $@.XXXXXX.a`    &&\
 122         cp $< $$Atmp    &&\
 123         ar r $$Atmp $(wordlist 2,$(words $+),$+)        &&\
 124         mv -f $$Atmp $@
 125
 126 navymail$X: navymail.o export.o gbox-walk.o fs.o fromgit/builtin/help.o compat/progexe.o fromgit/libgit.a
 127         $(QUIET_CC)$(CC) $(CFLAGS) -o $@ $^ $(GIT_LDFLAGS) $(GIT_LIBS_wo_libgit) $(FUSE_LIBS)
 128
 129 # TODO automatically extract dependencies on compile
 130 %.o     : %.c
 131         $(QUIET_CC)$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
 132
 133
 134 navymail.o : fromgit/git.c
 135
 136 # NOTE -no_includes so that it does not modify .h
 137 # XXX -no_loops so that it does not take forever...
 138 # XXX .cocci files can't include other .cocci (only .iso) so we do "includes"
 139 #     manually via generating .cocci+
 140 fromgit/%.c : git/%.c fromgit/%.cocci fromgit/common.cocci
 141         $(Q)cat fromgit/$*.cocci fromgit/common.cocci > fromgit/$*.cocci+
 142         $(QSPATCH) $(SPATCH) $(Qspatch) -no_loops -no_includes -sp_file fromgit/$*.cocci+ -o $@ $<
 143
 144
 145 clean   :
 146         $(QCLEAN)$(RM)  \
 147                 navymail        \
 148                 fromgit/*.cocci+ fromgit/builtin/*.cocci+       \
 149                 *.o fromgit/*.[coa] fromgit/builtin/*.[co] compat/*.o   \
 150                 .config.mk.git
 151
 152 mrproper: clean
 153         $(QMRPROPER)$(RM) \
 154                 configure config.status config.log .config.mk.autogen && \
 155                 $(MAKE) -C git/ clean
 156
 157
 158
 159 test    : navymail$X
 160         $(Q)$(MAKE) $(Qsubdir) -C t/