+# Implicit rules are implemented in make as suffix rules. The following rule
+# empties the suffix list to disable the predefined implicit rules. This
+# increases performance and avoids hard-to-debug behaviour.
+.SUFFIXES:
+MAKEFLAGS += -Rr
+ifeq ("$(origin CC)", "default")
+ CC := cc
+endif
+
# where to install
PREFIX ?= /usr/local
libdir := $(PREFIX)/lib
mandir := $(PREFIX)/man/man1
objects := osl.o util.o rbtree.o sha1.o
-fsck_objects := fsck.o osl.o util.o rbtree.o sha1.o fsck.cmdline.o
+fsck_objects := fsck.o osl.o util.o rbtree.o sha1.o oslfsck.lsg.o
+deps := $(sort $(objects:.o=.d) $(fsck_objects:.o=.d))
headers := osl.h
executables := oslfsck
man_pages := oslfsck.1
INSTALL := install
ifeq "$(origin CC)" "default"
- CC := gcc
+ CC := cc
endif
MKDIR := mkdir -p
RM := rm -f
OBJCOPY := objcopy
# libosl's versioning consists of three numbers. Let's call them x, y and z.
-# The way x, y and z are interpreted depends on the OS.
x := 0
y := 1
z := 3
VERSION := $(x).$(y).$(z)
-# common flags
-CPPFLAGS += -DVERSION='"$(VERSION)"'
-
-CFLAGS += -Wno-sign-compare -g -Wunused -Wundef -W
-CFLAGS += -Wredundant-decls
-CFLAGS += -Os
-CFLAGS += -Wall
-CFLAGS += -Wuninitialized
-CFLAGS += -Wchar-subscripts
-CFLAGS += -Wformat-security
-CFLAGS += -Werror-implicit-function-declaration
-CFLAGS += -Wmissing-format-attribute
-CFLAGS += -Wunused-macros
-CFLAGS += -Wbad-function-cast
-
-# cflags used only for building library objects
-LIBCFLAGS += -fPIC
-LIBCFLAGS += -fvisibility=hidden
-
-uname_s := $(shell uname -s 2>/dev/null || echo "UNKNOWN_OS")
-
+OSL_CPPFLAGS += -DOSL_VERSION='"$(VERSION)"'
+
+OSL_CFLAGS += -g -Wunused -Wundef -W
+OSL_CFLAGS += -Wredundant-decls
+OSL_CFLAGS += -Os
+OSL_CFLAGS += -Wall
+OSL_CFLAGS += -Wuninitialized
+OSL_CFLAGS += -Wchar-subscripts
+OSL_CFLAGS += -Wformat-security
+OSL_CFLAGS += -Werror-implicit-function-declaration
+OSL_CFLAGS += -Wmissing-format-attribute
+OSL_CFLAGS += -Wunused-macros
+OSL_CFLAGS += -Wbad-function-cast
+OSL_CFLAGS += -fPIC
+OSL_CFLAGS += -fvisibility=hidden
+
+OSL_LDFLAGS += -Wl,-soname,$(soname)
+OSL_LDFLAGS += -Wl,-z,defs
+OSL_LDFLAGS += --shared
+
+# On ELf-based systems, the following conventions apply (see dhweeler's
+# Program Library HOWTO):
+#
+# The soname has the prefix ``lib'', the name of the library, the
+# phrase ``.so'', followed by a period and a version number that is
+# incremented whenever the interface changes.
libname := osl
+soname := lib$(libname).so.$(x)
-ifeq ($(uname_s),Linux)
- format := elf
- LDFLAGS += -Wl,-soname,$(soname)
- # disallow undefined symbols
- LDFLAGS += -Wl,-z,defs
-endif
-ifeq ($(uname_s),Darwin)
- # Darwin has its own idea on version numbers:
- realname := lib$(libname).$(x).dylib
- soname := $(realname)
- linkername := lib$(libname).dylib
- # The minor version number is an incremental number using the format
- # X[.Y[.Z]]. To set the minor version number of a dynamic library, use
- # the gcc -current_version option.
- LDFLAGS += -current_version $(y).$(z)
- #
- # The compatibility version number of a library release specifies the
- # earliest minor version of the clients linked against that release can
- # use.
- LDFLAGS += -compatibility_version $(y).0
- LDFLAGS += -dynamiclib
-endif
-ifeq ($(uname_s),SunOS)
- format := elf
- # Solaris needs another set of flags
- LDFLAGS += -z text
- LDFLAGS += -z defs
- CPPFLAGS += -I/opt/csw/include
- LDFLAGS += -lc
-endif
-
-ifeq ($(uname_s),NetBSD)
- format := elf
- LDFLAGS += -Wl,-soname,$(soname)
-endif
+# The real name adds to the soname a period, a minor number, another
+# period, and the release number.
+realname := $(soname).$(y).$(z)
-ifeq ($(uname_s),FreeBSD)
- format := elf
- LDFLAGS += -Wl,-soname,$(soname)
-endif
-
-ifeq ($(format),elf)
- # On ELf-based systems, the following conventions apply (see dhweeler's
- # Program Library HOWTO):
- #
- # The soname has the prefix ``lib'', the name of the library, the
- # phrase ``.so'', followed by a period and a version number that is
- # incremented whenever the interface changes.
- soname := lib$(libname).so.$(x)
-
- # The real name adds to the soname a period, a minor number, another
- # period, and the release number.
- realname := $(soname).$(y).$(z)
-
- # In addition, there's the name that the compiler uses when requesting
- # a library, (I'll call it the ``linker name''), which is simply the
- # soname without any version number.
- linkername := lib$(libname).so
- LDFLAGS += --shared
-endif
+# In addition, there's the name that the compiler uses when requesting
+# a library, (I'll call it the ``linker name''), which is simply the
+# soname without any version number.
+linkername := lib$(libname).so
-all: $(realname) $(executables) $(man_pages)
+all: $(realname) $(executables) $(man_pages) $(headers)
shared: $(realname)
-Makefile.deps: $(wildcard *.c *.h)
- $(CC) -MM -MG *.c > $@
-osl.c fsck.c:
-
--include Makefile.deps
-
-fsck.cmdline.o: fsck.cmdline.c fsck.cmdline.h
- $(CC) $(CPPFLAGS) -c $<
-
-%.o: %.c Makefile errtab.h
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $(LIBCFLAGS) $<
+ifeq ($(findstring clean, $(MAKECMDGOALS)),)
+-include $(deps)
+endif
-fsck.cmdline.h fsck.cmdline.c: fsck.ggo Makefile
- gengetopt \
- --conf-parser \
- --unamed-opts=table \
- --no-handle-version \
- --file-name=fsck.cmdline \
- --func-name=fsck_cmdline_parser \
- --set-package="oslfsck" \
- --arg-struct-name=fsck_args_info \
- < $<
+# List osl.h in the prerequisites to make sure we generate it before attempting
+# to run the compiler. This matters only when the .d file does not exist.
+%.o: %.c osl.h Makefile errtab.h
+ $(CC) $(OSL_CPPFLAGS) $(CPPFLAGS) \
+ -c -MMD -MF $(*F).d -MT $@ \
+ $(OSL_CFLAGS) $(CFLAGS) $<
+fsck.o: oslfsck.lsg.h
oslfsck: $(fsck_objects)
- $(CC) -o $@ $(fsck_objects)
+ $(CC) -o $@ $(fsck_objects) $(LDFLAGS) -llopsub
-oslfsck.1: oslfsck
- help2man -h --detailed-help -N ./$< > $@
+.PRECIOUS: %.lsg.h %.lsg.c
+%.lsg.c: %.suite
+ lopsubgen --gen-c < $<
-$(realname): $(objects)
- $(CC) $(LDFLAGS) -o $@ $(objects)
+%.lsg.h: %.suite
+ lopsubgen --gen-header < $<
-$(libname).sym: osl.h.in
- sed -Ene '/^int|^const/{s/.*(osl_.*)\(.*/\1/; p;}' $< > $@
-$(libname).ga: $(objects)
- $(LD) -r -o $@ $(objects)
-lib$(libname).a: $(libname).ga $(libname).sym
- $(OBJCOPY) --keep-global-symbols $(libname).sym $(libname).ga $@
+%.1: %.suite
+ lopsubgen --gen-man=$@ < $<
-osl_errors.h: errlist
- echo '/** public error codes of the osl library. */' > $@
- sed -e 's/\([A-Z_]*\) .*/ E_OSL_\1/' \
- -e '1s/^/enum osl_errors {/1' \
- -e '1s/$$/=1/1' \
- -e '$$!s/$$/,/g' \
- -e '$$s/$$/};/1' $< >> $@
+$(realname): $(objects)
+ $(CC) $(OSL_LDFLAGS) $(LDFLAGS) -o $@ $(objects)
errtab.h: errlist
sed -e 's/^\([A-Z_]*\)\s*\(.*\)/OSL_ERROR(E_OSL_\1, \2)/g' $< > $@
-osl.h: osl.h.in osl_errors.h Makefile
+osl.h: osl.h.in errlist Makefile
echo '#ifndef _OSL_H' > $@
echo '#define _OSL_H' >> $@
- cat osl.h.in osl_errors.h >> $@
+ cat osl.h.in >> $@
+ echo '/** public error codes of the osl library. */' >> $@
+ sed -e 's/\([A-Z_]*\) .*/ E_OSL_\1/' \
+ -e '1s/^/enum osl_errors {/1' \
+ -e '1s/$$/=1/1' \
+ -e '$$!s/$$/,/g' \
+ -e '$$s/$$/};/1' errlist >> $@
echo '#endif /* _OSL_H */' >> $@
clean:
- rm -f *.o $(realname) osl.h osl_errors.h errtab.h fsck.cmdline.h \
- fsck.cmdline.c oslfsck *.a *.ga *.sym
+ rm -f *.o $(realname) osl.h errtab.h oslfsck *.lsg.* *.d
distclean: clean
rm -f web/index.html web/oslfsck.1.html web/osl.png
projects / osl.git / blobdiff