# Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. # This file is part of the GNU C Library. # The GNU C Library is free software; you can redistribute it and/or # modify it under the terms of the GNU Library General Public License as # published by the Free Software Foundation; either version 2 of the # License, or (at your option) any later version. # The GNU C Library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Library General Public License for more details. # You should have received a copy of the GNU Library General Public # License along with the GNU C Library; see the file COPYING.LIB. If # not, write to the Free Software Foundation, Inc., 675 Mass Ave, # Cambridge, MA 02139, USA. # # Makefile configuration options for the GNU C library. # ifneq (,) This makefile requires GNU Make. endif ifneq "$(origin +included-Makeconfig)" "file" +included-Makeconfig := yes ifdef subdir .. := ../ endif # If config.make exists, the source directory was configured, # so don't try to be clever and find another directory to build in. ifneq (,$(wildcard $(..)config.make)) ARCH = machine = else # Not configured. ifndef ARCH ifdef machine ARCH = $(machine) endif # machine endif # ARCH endif # config.make # Directory for object files and libc.a. If this is not defined, the # object files live in the subdirectories where their sources live, and # libc.a lives in the parent directory (this probably doesn't work any # more). ifdef ARCH ifeq ($(filter /%,$(ARCH)),) objdir := $(..)$(ARCH) else objdir = $(ARCH) endif endif # $(common-objdir) is the place to put objects and # such that are not specific to a single subdir. ifdef objdir objpfx = $(objdir)/ common-objpfx = $(objpfx) common-objdir = $(objdir) else objpfx := ifdef .. common-objpfx = $(..) common-objdir = .. else # This is a kludge. make wizards might grok. common-objpfx = sysdeps/../ common-objdir = . endif endif # Get the values defined by options to `configure'. include $(common-objpfx)config.make # Force the user to configure before making. $(common-objpfx)config.make: @echo The GNU C library has not been configured. >&2 @echo Run \`configure\' to configure it before building. >&2 @exit 1 # Get the user's configuration parameters. ifneq ($(wildcard $(..)configparms),) include $(..)configparms endif ifneq ($(objpfx),) ifneq ($(wildcard $(objpfx)configparms),) include $(objpfx)configparms endif endif sysdep_dir := $(..)sysdeps export sysdep_dir := $(sysdep_dir) #### #### These are the configuration variables. You can define values for #### the variables below in the file `configparms'. #### Do NOT edit this file. #### # Common prefix for machine-independent installation directories. ifndef prefix prefix = /usr/local endif # Common prefix for machine-dependent installation directories. ifndef exec_prefix exec_prefix = $(prefix) endif # Where to install the library and object files. ifndef libdir libdir = $(exec_prefix)/lib endif # Prefix to put on files installed in $(libdir). For libraries `libNAME.a', # the prefix is spliced between `lib' and the name, so the linker switch # `-l$(libprefix)NAME' finds the library; for other files the prefix is # just prepended to the whole file name. ifndef libprefix libprefix = endif # Where to install the header files. ifndef includedir includedir = $(exec_prefix)/include endif # Where to install machine-independent data files. # These are the timezone database, and eventually the locale database. ifndef datadir datadir = $(prefix)/share endif # Where to install the timezone data files (which are machine-independent). ifndef zonedir zonedir = $(datadir)/zoneinfo endif # Where to install programs. ifndef bindir bindir = $(exec_prefix)/bin endif # Where to install administrative programs. ifndef sbindir sbindir = $(exec_prefix)/sbin endif # Where to install the Info files. ifndef infodir infodir = $(prefix)/info endif # Where to install default configuration files. These include the local # timezone specification and network data base files. ifndef sysconfdir sysconfdir = $(prefix)/etc endif # What timezone should be the installed default (e.g., US/Eastern). # Run `make -C time echo-zonenames' to see a list of available zone names. # The local timezone can be changed with `zic -l TIMEZONE' at any time. ifndef localtime localtime = Factory endif # Where to install the "localtime" timezone file; this is the file whose # contents $(localtime) specifies. If this is a relative pathname, it is # relative to $(zonedir). It is a good idea to put this somewhere # other than there, so the zoneinfo directory contains only universal data, # localizing the configuration data elsewhere. ifndef localtime-file localtime-file = $(sysconfdir)/localtime endif # What timezone's DST rules should be used when a POSIX-style TZ # environment variable doesn't specify any rules. For 1003.1 compliance # this timezone must use rules that are as U.S. federal law defines DST. # Run `make -C time echo-zonenames' to see a list of available zone names. # This setting can be changed with `zic -p TIMEZONE' at any time. # If you want POSIX.1 compatibility, use `America/New_York'. ifndef posixrules posixrules = America/New_York endif # Where to install the "posixrules" timezone file; this is file # whose contents $(posixrules) specifies. If this is a relative # pathname, it is relative to $(zonedir). ifndef posixrules-file posixrules-file = posixrules endif # Directory where your system's native header files live. # This is used on Unix systems to generate some GNU libc header files. ifndef sysincludedir sysincludedir = /usr/include endif # Commands to install files. ifndef INSTALL_DATA INSTALL_DATA = $(INSTALL) -m 644 endif ifndef INSTALL_PROGRAM INSTALL_PROGRAM = $(INSTALL) endif ifndef INSTALL INSTALL = install endif # The name of the C compiler. # If you've got GCC, and it works, use it. ifeq ($(origin CC),default) CC := gcc endif # The name of the C compiler to use for compilations of programs to run on # the host that is building the library. If you set CC to a # cross-compiler, you must set this to the normal compiler. ifndef BUILD_CC BUILD_CC = $(CC) endif # Default flags to pass the C compiler. ifndef default_cflags default_cflags := -g endif # Flags to pass the C compiler when assembling preprocessed assembly code # (`.S' files). On some systems the assembler doesn't understand the `#' line # directives the preprocessor produces. If you have troubling compiling # assembly code, try using -P here to suppress these directives. ifndef asm-CPPFLAGS asm-CPPFLAGS = endif # Command for linking programs with the C library. ifndef +link +link = $(CC) -nostdlib $(LDFLAGS) -o $@ \ $(addprefix $(csu-objpfx),start.o $(+preinit)) \ $(^:lib=$(common-objpfx)libc.a) $(gnulib) $(common-objpfx)libc.a \ $(addprefix $(csu-objpfx),$(+postinit)) endif ifndef gnulib gnulib := -lgcc endif ifeq ($(elf),yes) +preinit = crti.o +postinit = crtn.o endif ifdef objpfx csu-objpfx = $(objpfx) else csu-objpfx = $(..)csu/ endif ifndef LD LD := ld -X endif ifndef RANLIB RANLIB = ranlib endif # Extra flags to pass to GCC. +gccwarn := -Wall -Wwrite-strings -Wno-parentheses # This is the program that generates makefile # dependencies from C source files. ifndef +mkdep +mkdep = $(CC) -M endif # The program that makes Emacs-style TAGS files. ETAGS := etags -T # The `m4' macro processor; this is used by sysdeps/sparc/Makefile (and # perhaps others) to preprocess assembly code in some cases. M4 = m4 #### #### End of configuration variables. #### # This tells some versions of GNU make before 3.63 not to export all variables. .NOEXPORT: # We want to echo the commands we're running without # umpteem zillion filenames along with it (we use `...' instead) # but we don't want this echoing done when the user has said # he doesn't want to see commands echoed by using -s. ifneq "$(findstring s,$(MAKEFLAGS))" "" # if -s +cmdecho := echo >/dev/null else # not -s +cmdecho := echo endif # -s # These are the flags given to the compiler to tell # it what sort of optimization and/or debugging output to do. ifndef +cflags # If `CFLAGS' was defined, use that. ifdef CFLAGS +cflags := $(filter-out -I%,$(CFLAGS)) endif # CFLAGS endif # +cflags # If none of the above worked, default to "-g". ifeq "$(strip $(+cflags))" "" +cflags := $(default_cflags) endif # $(+cflags) == "" # If using gcc, add flags that only it will grok. ifneq "$(findstring gcc,$(CC))" "" +cflags := $(+cflags) $(+gccwarn) +gcc-nowarn := -w else +gcc-nowarn := endif # gcc # Don't duplicate options if we inherited variables from the parent. +cflags := $(sort $(+cflags)) # These are flags given to the C compiler to tell it to look for include # files (including ones given in angle brackets) in the current directory # and in the parent library source directory. # `+sysdep-includes' will be defined by Makerules. +includes = -I. $(filter-out -I,-I$(patsubst %/,%,$(..))) \ $(includes) $(+sysdep-includes) $(last-includes) # These are the variables that the implicit compilation rules use. CPPFLAGS = $(+includes) $(defines) -include $(..)libc-symbols.h \ $(sysdep-CPPFLAGS) $(CPPFLAGS-$(suffix $@)) override CFLAGS = $(+cflags) $(sysdep-CFLAGS) $(CFLAGS-$(suffix $@)) # This is the macro that the implicit linking rules use. ifneq "$(filter -g,$(+cflags))" "" # -g is in $(+cflags) LDFLAGS := -g endif # Enable object files for different versions of the library. # Various things use $(object-suffixes) to know what all to make. # The compilation rules use $(CPPFLAGS-${SUFFIX}) and $(CFLAGS-${SUFFIX}) # to pass different flags for each flavor. libtypes = $(foreach o,$(object-suffixes),$(libtype$o)) object-suffixes := .o libtype.o := lib%.a ifeq (yes,$(build-shared)) # Under --enable-shared, we will build a shared library of PIC objects. # The PIC object files are named foo.so. object-suffixes += .so CPPFLAGS-.so = -DPIC CFLAGS-.so = -fPIC libtype.so := lib%_pic.a endif ifeq (yes,$(build-profile)) # Under --enable-profile, we will build a static library of profiled objects. # The profiled object files are named foo.po. object-suffixes += .po CFLAGS-.po = -p libtype.po = lib%_p.a endif ifeq (yes,$(build-omitfp)) # Under --enable-omitfp, we build an the library optimized without # debugging information using -fomit-frame-pointer, and build an extra # library with debugging information. The debuggable objects are named foo.go. object-suffixes += .go CFLAGS-.go = -g CFLAGS-.o = -g0 -O99 -fomit-frame-pointer CFLAGS-.so += $(CFLAGS.o) libtype.go = lib%_g.a endif +gnu-stabs = $(shell echo>&2 '*** BARF ON ME') ifneq ($(BUILD_CC),$(CC)) cross-compiling := yes else cross-compiling := no endif endif # Makeconfig not yet included