build: Drop support for SunOS and MacOS.

[osl.git] / Makefile

diff --git a/Makefile b/Makefile
index 7ce449390d1eb9ef7bac35857984c4d45722aaa8..ba10fd56fddffe2f3d23e87f7141a68335dd9176 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -7,13 +7,14 @@ 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 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
@@ -22,7 +23,6 @@ LD := ld
 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
@@ -47,8 +47,6 @@ CFLAGS += -Wbad-function-cast
 LIBCFLAGS += -fPIC
 LIBCFLAGS += -fvisibility=hidden
 
-uname_s := $(shell uname -s 2>/dev/null || echo "UNKNOWN_OS")
-
 libname := osl
 
 ifeq ($(uname_s),Linux)
@@ -57,31 +55,6 @@ ifeq ($(uname_s),Linux)
        # 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)
@@ -115,15 +88,13 @@ endif
 all: $(realname) $(executables) $(man_pages)
 shared: $(realname)
 
-Makefile.deps: $(wildcard *.c *.h)
-       $(CC) -MM -MG *.c > $@
-osl.c fsck.c:
-
--include Makefile.deps
-
+ifeq ($(findstring clean, $(MAKECMDGOALS)),)
+-include $(deps)
+endif
 %.o: %.c Makefile errtab.h
-       $(CC) -c $(CPPFLAGS) $(CFLAGS) $(LIBCFLAGS) $<
+       $(CC) $(CPPFLAGS) -c -MMD -MF $(*F).d -MT $@ $(CFLAGS) $(LIBCFLAGS) $<
 
+fsck.o: oslfsck.lsg.h
 oslfsck: $(fsck_objects)
        $(CC) -o $@ $(fsck_objects) -llopsub
 
@@ -164,7 +135,7 @@ osl.h: osl.h.in osl_errors.h Makefile
        echo '#endif /* _OSL_H */' >> $@
 clean:
        rm -f *.o $(realname) osl.h osl_errors.h errtab.h \
-               oslfsck *.a *.ga *.sym *.lsg.*
+               oslfsck *.a *.ga *.sym *.lsg.* *.d
 
 distclean: clean
        rm -f web/index.html web/oslfsck.1.html web/osl.png