Makefile.genrules

   1 ###############################################################################
   2 # Copyright (c) 2000-2014 Ericsson Telecom AB
   3 # All rights reserved. This program and the accompanying materials
   4 # are made available under the terms of the Eclipse Public License v1.0
   5 # which accompanies this distribution, and is available at
   6 # http://www.eclipse.org/legal/epl-v10.html
   7 ###############################################################################
   8 # General stuff (to be included at the end of makefiles). The
   9 # following variables are used: DEPFILES, SUBDIRS...
  10
  11 tags: $(SOURCES)
  12 ifdef SUBDIRS
  13         @for i in $(SUBDIRS) ; do \
  14           (cd $$i && $(MAKE) tags) || exit 1; \
  15         done
  16 endif
  17         etags --members *.hh *.h *.c *.cc
  18
  19 dep:
  20 ifdef SUBDIRS
  21         @for i in $(SUBDIRS) ; do \
  22           (cd $$i && $(MAKE) dep) || exit 1; \
  23         done
  24 endif
  25 ifdef DEPFILES
  26         $(MAKE) $(DEPFILES)
  27 endif
  28
  29 clean:
  30 ifdef SUBDIRS
  31         @for i in $(SUBDIRS) ; do \
  32           (cd $$i && $(MAKE) clean) || exit 1; \
  33         done
  34 endif
  35         $(RM) $(TARGETS) $(OBJECTS) $(TOBECLEANED)
  36
  37 distclean:
  38 ifdef SUBDIRS
  39         @for i in $(SUBDIRS) ; do \
  40           (cd $$i && $(MAKE) distclean) || exit 1; \
  41         done
  42 endif
  43         $(RM) $(TARGETS) $(OBJECTS) $(TOBECLEANED) \
  44           $(GENERATED_HEADERS) $(GENERATED_SOURCES) \
  45           $(GENERATED_OTHERS) \
  46           $(DEPFILES) TAGS *.gcno *.gcda
  47
  48 # This target allows us to "make ../clean"
  49 ../% $(foreach dir, $(SUBDIRS), $(dir)/%):
  50         cd $(dir $@) && $(MAKE) $(notdir $@)
  51
  52 # General rules to compile C(++) files.
  53 #
  54 # These macros implement "silent" rules during building.
  55 # Define the V make variable or environment variable to a nonzero value to get
  56 # the exact call to the compiler: e.g.     make V=1
  57 #
  58 # Define the VD variable to get the exact (verbose) action while
  59 # generating dependencies.
  60 #
  61 NULL  :=
  62 SPACE := ${NULL} ${NULL}
  63
  64 DEF_V := 0
  65 DEF_VD:= 0
  66
  67 V_CC_0  = @echo  "  (CC)        " $<;$(SPACE)
  68 V_CXX_0 = @echo  "  (C++)       " $<;$(SPACE)
  69 V_DEP_0 = @echo  "  (dep)       " $<;$(SPACE)
  70
  71 V_CC_  = $(V_CC_$(DEF_V))
  72 V_CXX_ = $(V_CXX_$(DEF_V))
  73 V_DEP_ = $(V_DEP_$(DEF_VD))
  74
  75 V_CC  = $(V_CC_$(V))
  76 V_CXX = $(V_CXX_$(V))
  77 V_DEP = $(V_DEP_$(VD))
  78
  79 %.o: %.c
  80         $(V_CC)$(CC) -c $(CPPFLAGS) $(CCFLAGS) $< -o $@
  81
  82 %.o: %.cc
  83         $(V_CXX)$(CXX) -c $(CPPFLAGS) $(CXXFLAGS) $< -o $@
  84
  85 # Preprocess C/C++ files
  86 %.i: %.c
  87         $(CC) -E $(CPPFLAGS) $(CCFLAGS) \
  88                 $< > $@
  89
  90 %.ii: %.cc
  91         $(CXX) -E $(CPPFLAGS) $(CXXFLAGS) \
  92                 $< > $@
  93
  94 # General rules to create the dependency file.
  95
  96 %.d: %.c
  97         $(V_DEP)set -e; $(CC) $(CCDEPFLAG) $(CPPFLAGS) $< \
  98         | sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' > $@; \
  99         [ -s $@ ] || rm -f $@
 100
 101 %.d: %.cc
 102         $(V_DEP)set -e; $(CXX) $(CXXDEPFLAG) $(CPPFLAGS) $< \
 103         | sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' > $@; \
 104         [ -s $@ ] || rm -f $@
 105
 106 ifdef DEPFILES
 107   ifndef MAKECMDGOALS
 108     DEPFILES_NEEDED := yes
 109   else
 110     DEPFILES_NEEDED := $(filter-out clean distclean, $(MAKECMDGOALS))
 111   endif
 112   ifdef DEPFILES_NEEDED
 113     DEPFILES_INCLUDE := $(filter-out $(MAKECMDGOALS), $(DEPFILES))
 114     ifdef DEPFILES_INCLUDE
 115       ifeq (,$(findstring n,$(MAKEFLAGS)))
 116         # -n was *not* given to make
 117         -include $(DEPFILES_INCLUDE)
 118       endif
 119     endif
 120   endif
 121 endif
 122
 123 # Building PDFs from man pages (for MinGW)
 124 %.pdf: %.1
 125         man2pdf ./$< $@
 126 # The "./" prefix is important, it tells man that the input is a filename,
 127 # so it shouldn't search through MANPATH.
 128
 129 # List of fake targets:
 130 .PHONY: all install tags dep clean distclean
 131
 132 # Disable all built-in suffix rules of make
 133 .SUFFIXES:
 134
 135 # Do not delete generated headers while building .d files
 136 # (.PRECIOUS would also keep them if make is killed)
 137 .SECONDARY: $(GENERATED_HEADERS)
 138
 139 ifdef SRCDIR
 140
 141 REQUIRED_MAKE_VERSION = 3.81
 142 # 3.80 is known not to work; 3.82 does work
 143 REAL_MAKE_VERSION = $(firstword $(MAKE_VERSION))
 144 EARLIER_MAKE_VERSION = $(firstword $(sort $(REAL_MAKE_VERSION) $(REQUIRED_MAKE_VERSION)))
 145 ifeq "$(REQUIRED_MAKE_VERSION)" "$(EARLIER_MAKE_VERSION)"
 146
 147 # Declare a search path for every source.
 148 # "vpath %.cc $(ABS_SRC)" would lump in generated .cc files,
 149 # potentially picking up generated files laying around in the source dir
 150 # instead of generating them in the build dir.
 151 $(foreach src, $(STATIC_SOURCES) $(ORIGINATORS), $(eval vpath $(src) $(ABS_SRC)))
 152
 153 else
 154
 155 # alas, make 3.80 can't cope with the "foreach/eval vpath" above
 156 #$(warning no OOBE with make $(MAKE_VERSION))
 157
 158 endif
 159
 160 endif