Makefile

   1 # Implicit rules are implemented in make as suffix rules. The following rule
   2 # empties the suffix list to disable the predefined implicit rules. This
   3 # increases performance and avoids hard-to-debug behaviour.
   4 .SUFFIXES:
   5 MAKEFLAGS += -Rr
   6 CC := $(CC)
   7 ifeq ($(strip $(CC)),)
   8         CC := cc
   9 endif
  10
  11 # where to install
  12 PREFIX ?= /usr/local
  13 libdir := $(PREFIX)/lib
  14 includedir := $(PREFIX)/include
  15 bindir := $(PREFIX)/bin
  16 mandir := $(PREFIX)/man/man1
  17
  18 objects := osl.o util.o rbtree.o sha1.o sha3.o sha256.o
  19 fsck_objects := fsck.o osl.o util.o rbtree.o sha1.o sha3.o sha256.o oslfsck.lsg.o
  20 deps := $(sort $(objects:.o=.d) $(fsck_objects:.o=.d))
  21 headers := osl.h
  22 executables := oslfsck
  23 man_pages := oslfsck.1
  24
  25 INSTALL := install
  26 MKDIR := mkdir -p
  27 RM := rm -f
  28 LN := ln
  29 LD := ld
  30 M4 := m4 -g
  31 OBJCOPY := objcopy
  32
  33 # libosl's versioning consists of three numbers. Let's call them x, y and z.
  34 x := 0
  35 y := 2
  36 z := 0
  37 VERSION := $(x).$(y).$(z)
  38
  39 OSL_CPPFLAGS += -DOSL_VERSION='"$(VERSION)"'
  40
  41 OSL_CFLAGS += -g -Wunused -Wundef -W
  42 OSL_CFLAGS += -Wredundant-decls
  43 OSL_CFLAGS += -Os
  44 OSL_CFLAGS += -Wall
  45 OSL_CFLAGS += -Wuninitialized
  46 OSL_CFLAGS += -Wchar-subscripts
  47 OSL_CFLAGS += -Wformat-security
  48 OSL_CFLAGS += -Werror-implicit-function-declaration
  49 OSL_CFLAGS += -Wmissing-format-attribute
  50 OSL_CFLAGS += -Wunused-macros
  51 OSL_CFLAGS += -Wbad-function-cast
  52 OSL_CFLAGS += -fPIC
  53 OSL_CFLAGS += -fvisibility=hidden
  54
  55 OSL_LDFLAGS += -Wl,-soname,$(soname)
  56 OSL_LDFLAGS += -Wl,-z,defs
  57 OSL_LDFLAGS += --shared
  58
  59 # On ELf-based systems, the following conventions apply (see dhweeler's
  60 # Program Library HOWTO):
  61 #
  62 # The soname has the prefix ``lib'', the name of the library, the
  63 # phrase ``.so'', followed by a period and a version number that is
  64 # incremented whenever the interface changes.
  65 libname := osl
  66 soname := lib$(libname).so.$(x)
  67
  68 # The real name adds to the soname a period, a minor number, another
  69 # period, and the release number.
  70 realname := $(soname).$(y).$(z)
  71
  72 # In addition, there's the name that the compiler uses when requesting
  73 # a library, (I'll call it the ``linker name''), which is simply the
  74 # soname without any version number.
  75 linkername := lib$(libname).so
  76
  77 all: $(realname) $(executables) $(man_pages) $(headers)
  78 shared: $(realname)
  79
  80 ifeq ($(findstring clean, $(MAKECMDGOALS)),)
  81 -include $(deps)
  82 endif
  83
  84 # The files to generate before attempting to run the compiler. These
  85 # are the order-only prerequisites in the rule below.
  86 pre_deps := osl.h errtab.h oslfsck.lsg.h
  87
  88 # The .d and .o files are both created from a single cc invocation.
  89 define CC_CMD
  90         $(CC) $(OSL_CPPFLAGS) $(CPPFLAGS) \
  91                 -c -MMD -MF $(*F).d -MT $(*F).o \
  92                 $(OSL_CFLAGS) $(CFLAGS) $<
  93 endef
  94 %.o: %.c Makefile | $(pre_deps)
  95         $(CC_CMD)
  96 %.d: %.c Makefile | $(pre_deps)
  97         $(CC_CMD)
  98
  99 fsck.o: oslfsck.lsg.h
 100 oslfsck: $(fsck_objects)
 101         $(CC) -o $@ $(fsck_objects) $(LDFLAGS) -llopsub
 102
 103 .PRECIOUS: %.lsg.h %.lsg.c
 104 %.lsg.c: %.suite
 105         lopsubgen --gen-c < $<
 106
 107 %.lsg.h: %.suite
 108         lopsubgen --gen-header < $<
 109
 110 %.1: %.suite
 111         lopsubgen --gen-man=$@ < $<
 112
 113 $(realname): $(objects)
 114         $(CC) $(OSL_LDFLAGS) $(LDFLAGS) -o $@ $(objects)
 115
 116 errtab.h: errlist
 117         sed -e 's/^\([A-Z_]*\)\s*\(.*\)/OSL_ERROR(E_OSL_\1, \2)/g' $< > $@
 118
 119 osl.h: osl.h.m4 errlist Makefile
 120         echo '#ifndef _OSL_H' > $@
 121         echo '#define _OSL_H' >> $@
 122         $(M4) -DOUTPUT_MODE=C gendoc.m4 $< >> $@
 123         echo '/** public error codes of the osl library. */' >> $@
 124         sed -e 's/\([A-Z_]*\)   .*/     E_OSL_\1/' \
 125                 -e '1s/^/enum osl_errors {/1' \
 126                 -e '1s/$$/=1/1' \
 127                 -e '$$!s/$$/,/g' \
 128                 -e '$$s/$$/};/1' errlist >> $@
 129         echo '#endif /* _OSL_H */' >> $@
 130 clean:
 131         rm -f *.o $(realname) osl.h errtab.h oslfsck *.lsg.* *.d
 132
 133 distclean: clean
 134         rm -f web/index.html web/oslfsck.1.html web/osl.png
 135
 136 install-bin: $(executables)
 137         $(MKDIR) $(bindir)
 138         $(INSTALL) -m 755 $(executables) $(bindir)
 139
 140 install-man: $(man_pages)
 141         $(MKDIR) $(mandir)
 142         $(INSTALL) -m 644 $(man_pages) $(mandir)
 143
 144 install-lib: $(realname) $(headers)
 145         $(MKDIR) $(libdir) $(includedir)
 146         $(RM) $(libdir)/$(linkername)
 147         $(LN) -s $(soname) $(libdir)/$(linkername)
 148         $(INSTALL) -m 755 $(realname) $(libdir)
 149         $(INSTALL) -m 644 $(headers) $(includedir)
 150
 151 install: all install-bin install-man install-lib
 152 www: web/index.html web/osl.png web/api.html
 153
 154 .PHONY: all shared clean install install-bin install-man install-lib www
 155
 156 web/osl.png: web/osl.pdf Makefile
 157         convert -scale 200x200 $< $@
 158
 159 web/index.html: oslfsck.1 web/header.html web/index.html.in INSTALL README QUICK_START
 160         cat web/header.html > $@
 161         sed -e '/@README@/,$$d' web/index.html.in >> $@
 162         markdown < README >> $@
 163         sed -e '1,/@README@/d' -e '/@INSTALL@/,$$d' web/index.html.in >> $@
 164         markdown < INSTALL >> $@
 165         sed -e '1,/@INSTALL@/d' -e '/@QUICK_START@/,$$d' web/index.html.in >> $@
 166         markdown < QUICK_START >> $@
 167         sed -e '1,/@QUICK_START@/d' -e '/@MAN_PAGE@/,$$d' web/index.html.in >> $@
 168         groff -m man -Thtml -P -l oslfsck.1 | sed -e '1,/^<body>/d; /^<\/body>/,$$d' >> $@
 169         sed -e '1,/@MAN_PAGE@/d' web/index.html.in >> $@
 170
 171 web/api.html: osl.h.m4 web/header.html web/footer.html
 172         cat web/header.html > $@
 173         $(M4) -DOUTPUT_MODE=HTML gendoc.m4 $< >> $@
 174         cat web/footer.html >> $@