| # 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 |
| |
| # Run config.status to update config.make and config.h. We don't show the |
| # dependence of config.h to Make, because it is only touched when it |
| # changes and so config.status would be run every time; the dependence of |
| # config.make should suffice to force regeneration and re-exec, and the new |
| # image will notice if config.h changed. |
| $(common-objpfx)config.make: $(common-objpfx)config.status |
| cd $(<D); $(SHELL) $(<F) |
| |
| # Force the user to configure before making. |
| $(common-objpfx)config.status: $(..)configure |
| @cd $(@D); if test -f $(@F); then exec $(SHELL) $(@F) --recheck; else \ |
| echo The GNU C library has not been configured. >&2; \ |
| echo Run \`configure\' to configure it before building. >&2; \ |
| echo Try \`configure --help\' for more details. >&2; \ |
| exit 1; fi |
| |
| # Get the user's configuration parameters. |
| ifneq ($(wildcard $(..)configparms),) |
| include $(..)configparms |
| endif |
| ifneq ($(objpfx),) |
| ifneq ($(wildcard $(objpfx)configparms),) |
| include $(objpfx)configparms |
| endif |
| endif |
| |
| sysdep_dir := $(..)sysdeps |
| export sysdep_dir := $(sysdep_dir) |
| |
| #### |
| #### These are the configuration variables. You can define values for |
| #### the variables below in the file `configparms'. |
| #### Do NOT edit this file. |
| #### |
| |
| |
| # Set this to either `stdio' or `libio', to compile in either GNU stdio |
| # or GNU libio. |
| ifndef stdio |
| stdio = stdio |
| endif |
| |
| # Common prefix for machine-independent installation directories. |
| ifeq ($(origin prefix),undefined) # ifndef would override explicit empty value. |
| prefix = /usr/local |
| endif |
| |
| # Common prefix for machine-dependent installation directories. |
| ifeq ($(origin exec_prefix),undefined) |
| exec_prefix = $(prefix) |
| endif |
| |
| # Where to install the library and object files. |
| ifndef libdir |
| libdir = $(exec_prefix)/lib |
| endif |
| |
| # Where to install the shared library and dynamic linker. |
| ifndef slibdir |
| slibdir = $(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. |
| ifeq ($(origin libprefix),undefined) |
| 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 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 the locale and message catalog data files (which are |
| # machine-independent). |
| ifndef localedir |
| localedir = $(datadir)/locale |
| endif |
| |
| # Where to install the locale charmap source files. |
| ifndef nlsdir |
| nlsdir = $(datadir)/nls |
| 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 -nostartfiles -o $@ \ |
| $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS) \ |
| $(addprefix $(csu-objpfx),start.o $(+preinit)) \ |
| $(^:$(common-objpfx)libc%=$(link-libc)) \ |
| $(addprefix $(csu-objpfx),$(+postinit)) |
| endif |
| ifndef config-LDFLAGS |
| ifeq (yes,$(build-shared)) |
| config-LDFLAGS = -Wl,-dynamic-linker=$(slibdir)/$(rtld-installed-name) |
| endif |
| endif |
| ifndef link-libc |
| ifeq (yes,$(build-shared)) |
| link-libc = -Wl,-rpath-link=$(common-objdir) -Wl,-rpath=$(default-rpath) \ |
| $(common-objpfx)libc.so$(libc.so-version) $(gnulib) |
| # Choose the default search path for the dynamic linker based on |
| # where we will install libraries. |
| ifneq ($(libdir),$(slibdir)) |
| default-rpath = $(slibdir):$(libdir) |
| else |
| default-rpath = $(libdir) |
| endif |
| else |
| link-libc = $(common-objpfx)libc.a $(gnulib) $(common-objpfx)libc.a |
| endif |
| endif |
| ifndef gnulib |
| gnulib := -lgcc |
| endif |
| ifeq ($(elf),yes) |
| +preinit = crti.o |
| +postinit = crtn.o |
| endif |
| ifdef objpfx |
| csu-objpfx = $(objpfx) |
| elf-objpfx = $(objpfx) |
| else |
| csu-objpfx = $(..)csu/ |
| elf-objpfx = $(..)elf/ |
| endif |
| |
| ifeq (yes,$(build-shared)) |
| ifndef rtld-installed-name |
| rtld-installed-name = ld.so |
| endif |
| endif |
| |
| # How to run a program we just linked with our library. |
| # The program binary is assumed to be $(word 2,$^). |
| built-program-file = $(dir $(word 2,$^))$(notdir $(word 2,$^)) |
| ifneq (yes,$(build-shared)) |
| built-program-cmd = $(built-program-file) |
| else |
| comma = , |
| define built-program-cmd |
| LD_LIBRARY_PATH=$(common-objdir)$(patsubst -Wl$(comma)-rpath-link=%,:%,\ |
| $(filter -Wl$(comma)-rpath-link=%,\ |
| $(sysdep-LDFLAGS))) \ |
| $(elf-objpfx)ld.so $(built-program-file) |
| endef |
| endif |
| |
| ifndef LD |
| LD := ld -X |
| endif |
| |
| ifndef RANLIB |
| RANLIB = ranlib |
| endif |
| |
| # Extra flags to pass to GCC. |
| +gccwarn := -Wall -Wwrite-strings -Wno-parentheses -Winline |
| |
| # 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 %/,%,$(..))) $($(stdio)-include) \ |
| $(includes) $(+sysdep-includes) $(last-includes) |
| |
| # Since libio has several internal header files, we use a -I instead |
| # of many little headers in the top level source directory. |
| libio-include = -I$(..)libio |
| |
| # 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 |