[thirdparty/glibc.git] / Makeconfig

# 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)
\f
####
####	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.
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

# 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 data files (which are machine-independent).
ifndef localedir
localedir = $(datadir)/locale
endif

# Where to install the locale charmap and message catalog files (which are
# machine-independent).
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 $(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 -Winline -Wbad-function-cast

# 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.
####
\f
# 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
Commit	Line	Data
28f540f4 RM	1	# Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
	2	# This file is part of the GNU C Library.
	3
	4	# The GNU C Library is free software; you can redistribute it and/or
	5	# modify it under the terms of the GNU Library General Public License as
	6	# published by the Free Software Foundation; either version 2 of the
	7	# License, or (at your option) any later version.
	8
	9	# The GNU C Library is distributed in the hope that it will be useful,
	10	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	12	# Library General Public License for more details.
	13
	14	# You should have received a copy of the GNU Library General Public
	15	# License along with the GNU C Library; see the file COPYING.LIB. If
	16	# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
	17	# Cambridge, MA 02139, USA.
	18
	19	#
	20	# Makefile configuration options for the GNU C library.
	21	#
	22	ifneq (,)
	23	This makefile requires GNU Make.
	24	endif
	25
	26	ifneq "$(origin +included-Makeconfig)" "file"
	27
	28	+included-Makeconfig := yes
	29
	30	ifdef subdir
	31	.. := ../
	32	endif
	33
	34	# If config.make exists, the source directory was configured,
	35	# so don't try to be clever and find another directory to build in.
	36	ifneq (,$(wildcard $(..)config.make))
	37	ARCH =
	38	machine =
	39	else # Not configured.
	40	ifndef ARCH
	41	ifdef machine
	42	ARCH = $(machine)
	43	endif # machine
	44	endif # ARCH
	45	endif # config.make
	46
	47	# Directory for object files and libc.a. If this is not defined, the
	48	# object files live in the subdirectories where their sources live, and
	49	# libc.a lives in the parent directory (this probably doesn't work any
	50	# more).
	51	ifdef ARCH
	52	ifeq ($(filter /%,$(ARCH)),)
	53	objdir := $(..)$(ARCH)
	54	else
	55	objdir = $(ARCH)
	56	endif
	57	endif
	58
	59	# $(common-objdir) is the place to put objects and
	60	# such that are not specific to a single subdir.
	61	ifdef objdir
	62	objpfx = $(objdir)/
	63	common-objpfx = $(objpfx)
	64	common-objdir = $(objdir)
65	else
66	objpfx :=
67	ifdef ..
68	common-objpfx = $(..)
69	common-objdir = ..
70	else
71	# This is a kludge. make wizards might grok.
72	common-objpfx = sysdeps/../
73	common-objdir = .
74	endif
75	endif
76
28f540f4 RM	77
	78	# Get the values defined by options to `configure'.
	79	include $(common-objpfx)config.make
	80
273d56ce RM	81	# Run config.status to update config.make and config.h. We don't show the
	82	# dependence of config.h to Make, because it is only touched when it
	83	# changes and so config.status would be run every time; the dependence of
	84	# config.make should suffice to force regeneration and re-exec, and the new
	85	# image will notice if config.h changed.
	86	$(common-objpfx)config.make: $(common-objpfx)config.status
	87	cd $(<D); $(SHELL) $(<F)
	88
28f540f4	89	# Force the user to configure before making.
273d56ce RM	90	$(common-objpfx)config.status: $(..)configure
	91	@cd $(@D); if test -f $(@F); then exec $(SHELL) $(@F) --recheck; else \
	92	echo The GNU C library has not been configured. >&2; \
	93	echo Run \`configure\' to configure it before building. >&2; \
	94	echo Try \`configure --help\' for more details. >&2; \
	95	exit 1; fi
28f540f4 RM	96
	97	# Get the user's configuration parameters.
	98	ifneq ($(wildcard $(..)configparms),)
	99	include $(..)configparms
	100	endif
	101	ifneq ($(objpfx),)
	102	ifneq ($(wildcard $(objpfx)configparms),)
	103	include $(objpfx)configparms
	104	endif
	105	endif
	106
	107	sysdep_dir := $(..)sysdeps
	108	export sysdep_dir := $(sysdep_dir)
	109	\f
	110	####
	111	#### These are the configuration variables. You can define values for
	112	#### the variables below in the file `configparms'.
	113	#### Do NOT edit this file.
	114	####
	115
	116
	117	# Common prefix for machine-independent installation directories.
487253ea	118	ifeq ($(origin prefix),undefined) # ifndef would override explicit empty value.
28f540f4 RM	119	prefix = /usr/local
	120	endif
	121
	122	# Common prefix for machine-dependent installation directories.
487253ea	123	ifeq ($(origin exec_prefix),undefined)
28f540f4 RM	124	exec_prefix = $(prefix)
	125	endif
	126
	127	# Where to install the library and object files.
	128	ifndef libdir
	129	libdir = $(exec_prefix)/lib
	130	endif
	131
	132	# Prefix to put on files installed in $(libdir). For libraries `libNAME.a',
	133	# the prefix is spliced between `lib' and the name, so the linker switch
	134	# `-l$(libprefix)NAME' finds the library; for other files the prefix is
	135	# just prepended to the whole file name.
487253ea	136	ifeq ($(origin libprefix),undefined)
28f540f4 RM	137	libprefix =
	138	endif
	139
	140	# Where to install the header files.
	141	ifndef includedir
	142	includedir = $(exec_prefix)/include
	143	endif
	144
28f540f4	145	# Where to install machine-independent data files.
a2fe9c76	146	# These are the timezone database, and the locale database.
28f540f4 RM	147	ifndef datadir
	148	datadir = $(prefix)/share
	149	endif
	150
	151	# Where to install the timezone data files (which are machine-independent).
	152	ifndef zonedir
	153	zonedir = $(datadir)/zoneinfo
	154	endif
	155
a2fe9c76 RM	156	# Where to install the locale data files (which are machine-independent).
	157	ifndef localedir
	158	localedir = $(datadir)/locale
	159	endif
	160
	161	# Where to install the locale charmap and message catalog files (which are
	162	# machine-independent).
	163	ifndef nlsdir
	164	nlsdir = $(datadir)/nls
	165	endif
	166
	167
28f540f4 RM	168	# Where to install programs.
	169	ifndef bindir
	170	bindir = $(exec_prefix)/bin
	171	endif
	172
	173	# Where to install administrative programs.
	174	ifndef sbindir
	175	sbindir = $(exec_prefix)/sbin
	176	endif
	177
	178	# Where to install the Info files.
	179	ifndef infodir
	180	infodir = $(prefix)/info
	181	endif
	182
	183	# Where to install default configuration files. These include the local
	184	# timezone specification and network data base files.
	185	ifndef sysconfdir
	186	sysconfdir = $(prefix)/etc
	187	endif
	188
	189	# What timezone should be the installed default (e.g., US/Eastern).
	190	# Run `make -C time echo-zonenames' to see a list of available zone names.
	191	# The local timezone can be changed with `zic -l TIMEZONE' at any time.
	192	ifndef localtime
	193	localtime = Factory
	194	endif
	195
	196	# Where to install the "localtime" timezone file; this is the file whose
	197	# contents $(localtime) specifies. If this is a relative pathname, it is
	198	# relative to $(zonedir). It is a good idea to put this somewhere
	199	# other than there, so the zoneinfo directory contains only universal data,
	200	# localizing the configuration data elsewhere.
	201	ifndef localtime-file
	202	localtime-file = $(sysconfdir)/localtime
	203	endif
	204
	205	# What timezone's DST rules should be used when a POSIX-style TZ
	206	# environment variable doesn't specify any rules. For 1003.1 compliance
	207	# this timezone must use rules that are as U.S. federal law defines DST.
	208	# Run `make -C time echo-zonenames' to see a list of available zone names.
	209	# This setting can be changed with `zic -p TIMEZONE' at any time.
	210	# If you want POSIX.1 compatibility, use `America/New_York'.
	211	ifndef posixrules
	212	posixrules = America/New_York
	213	endif
	214
	215	# Where to install the "posixrules" timezone file; this is file
	216	# whose contents $(posixrules) specifies. If this is a relative
	217	# pathname, it is relative to $(zonedir).
	218	ifndef posixrules-file
	219	posixrules-file = posixrules
	220	endif
	221
	222
	223	# Directory where your system's native header files live.
	224	# This is used on Unix systems to generate some GNU libc header files.
	225	ifndef sysincludedir
	226	sysincludedir = /usr/include
	227	endif
	228
	229
	230	# Commands to install files.
	231	ifndef INSTALL_DATA
232	INSTALL_DATA = $(INSTALL) -m 644
233	endif
234	ifndef INSTALL_PROGRAM
235	INSTALL_PROGRAM = $(INSTALL)
236	endif
237	ifndef INSTALL
238	INSTALL = install
239	endif
240
241
242	# The name of the C compiler.
243	# If you've got GCC, and it works, use it.
244	ifeq ($(origin CC),default)
245	CC := gcc
246	endif
247
248	# The name of the C compiler to use for compilations of programs to run on
249	# the host that is building the library. If you set CC to a
250	# cross-compiler, you must set this to the normal compiler.
251	ifndef BUILD_CC
252	BUILD_CC = $(CC)
253	endif
254
255	# Default flags to pass the C compiler.
256	ifndef default_cflags
257	default_cflags := -g
258	endif
259
260	# Flags to pass the C compiler when assembling preprocessed assembly code
261	# (`.S' files). On some systems the assembler doesn't understand the `#' line
262	# directives the preprocessor produces. If you have troubling compiling
263	# assembly code, try using -P here to suppress these directives.
264	ifndef asm-CPPFLAGS
265	asm-CPPFLAGS =
266	endif
267
268	# Command for linking programs with the C library.
269	ifndef +link
270	+link = $(CC) -nostdlib $(LDFLAGS) -o $@ \
96f873b9	271	$(addprefix $(csu-objpfx),start.o $(+preinit)) \
66e3dda4	272	$(^:lib=$(common-objpfx)libc.a) $(gnulib) $(common-objpfx)libc.a \
96f873b9	273	$(addprefix $(csu-objpfx),$(+postinit))
28f540f4 RM	274	endif
	275	ifndef gnulib
	276	gnulib := -lgcc
	277	endif
96f873b9 RM	278	ifeq ($(elf),yes)
	279	+preinit = crti.o
	280	+postinit = crtn.o
	281	endif
	282	ifdef objpfx
	283	csu-objpfx = $(objpfx)
	284	else
883bc19b	285	csu-objpfx = $(..)csu/
96f873b9	286	endif
28f540f4 RM	287
	288	ifndef LD
	289	LD := ld -X
	290	endif
	291
	292	ifndef RANLIB
	293	RANLIB = ranlib
	294	endif
	295
	296	# Extra flags to pass to GCC.
4e1bac76	297	+gccwarn := -Wall -Wwrite-strings -Wno-parentheses -Winline -Wbad-function-cast
28f540f4 RM	298
	299	# This is the program that generates makefile
	300	# dependencies from C source files.
	301	ifndef +mkdep
	302	+mkdep = $(CC) -M
	303	endif
	304
	305	# The program that makes Emacs-style TAGS files.
	306	ETAGS := etags -T
	307
	308	# The `m4' macro processor; this is used by sysdeps/sparc/Makefile (and
	309	# perhaps others) to preprocess assembly code in some cases.
	310	M4 = m4
	311
	312	####
	313	#### End of configuration variables.
	314	####
	315	\f
	316	# This tells some versions of GNU make before 3.63 not to export all variables.
	317	.NOEXPORT:
	318
	319	# We want to echo the commands we're running without
	320	# umpteem zillion filenames along with it (we use `...' instead)
	321	# but we don't want this echoing done when the user has said
	322	# he doesn't want to see commands echoed by using -s.
	323	ifneq "$(findstring s,$(MAKEFLAGS))" "" # if -s
	324	+cmdecho := echo >/dev/null
	325	else # not -s
	326	+cmdecho := echo
	327	endif # -s
	328
	329	# These are the flags given to the compiler to tell
	330	# it what sort of optimization and/or debugging output to do.
	331	ifndef +cflags
	332	# If `CFLAGS' was defined, use that.
	333	ifdef CFLAGS
	334	+cflags := $(filter-out -I%,$(CFLAGS))
	335	endif # CFLAGS
	336	endif # +cflags
	337
	338	# If none of the above worked, default to "-g".
	339	ifeq "$(strip $(+cflags))" ""
	340	+cflags := $(default_cflags)
	341	endif # $(+cflags) == ""
	342
	343	# If using gcc, add flags that only it will grok.
	344	ifneq "$(findstring gcc,$(CC))" ""
	345	+cflags := $(+cflags) $(+gccwarn)
	346	+gcc-nowarn := -w
	347	else
	348	+gcc-nowarn :=
	349	endif # gcc
	350
	351	# Don't duplicate options if we inherited variables from the parent.
	352	+cflags := $(sort $(+cflags))
	353
	354
	355	# These are flags given to the C compiler to tell it to look for include
	356	# files (including ones given in angle brackets) in the current directory
	357	# and in the parent library source directory.
	358	# `+sysdep-includes' will be defined by Makerules.
	359	+includes = -I. $(filter-out -I,-I$(patsubst %/,%,$(..))) \
	360	$(includes) $(+sysdep-includes) $(last-includes)
	361
362
363	# These are the variables that the implicit compilation rules use.
364	CPPFLAGS = $(+includes) $(defines) -include $(..)libc-symbols.h \
53afa8d9 RM	365	$(sysdep-CPPFLAGS) $(CPPFLAGS-$(suffix $@))
53afa8d9 RM	366	override CFLAGS = $(+cflags) $(sysdep-CFLAGS) $(CFLAGS-$(suffix $@))
28f540f4 RM	367
	368
	369	# This is the macro that the implicit linking rules use.
	370	ifneq "$(filter -g,$(+cflags))" "" # -g is in $(+cflags)
	371	LDFLAGS := -g
	372	endif
	373
f0bf9cb9 RM	374
	375	# Enable object files for different versions of the library.
	376	# Various things use $(object-suffixes) to know what all to make.
	377	# The compilation rules use $(CPPFLAGS-${SUFFIX}) and $(CFLAGS-${SUFFIX})
	378	# to pass different flags for each flavor.
	379	libtypes = $(foreach o,$(object-suffixes),$(libtype$o))
	380	object-suffixes := .o
	381	libtype.o := lib%.a
	382	ifeq (yes,$(build-shared))
	383	# Under --enable-shared, we will build a shared library of PIC objects.
	384	# The PIC object files are named foo.so.
	385	object-suffixes += .so
	386	CPPFLAGS-.so = -DPIC
	387	CFLAGS-.so = -fPIC
	388	libtype.so := lib%_pic.a
	389	endif
	390	ifeq (yes,$(build-profile))
	391	# Under --enable-profile, we will build a static library of profiled objects.
	392	# The profiled object files are named foo.po.
	393	object-suffixes += .po
	394	CFLAGS-.po = -p
	395	libtype.po = lib%_p.a
	396	endif
	397	ifeq (yes,$(build-omitfp))
	398	# Under --enable-omitfp, we build an the library optimized without
	399	# debugging information using -fomit-frame-pointer, and build an extra
	400	# library with debugging information. The debuggable objects are named foo.go.
	401	object-suffixes += .go
	402	CFLAGS-.go = -g
	403	CFLAGS-.o = -g0 -O99 -fomit-frame-pointer
	404	CFLAGS-.so += $(CFLAGS.o)
	405	libtype.go = lib%_g.a
	406	endif
	407
	408
28f540f4 RM	409	+gnu-stabs = $(shell echo>&2 '*** BARF ON ME')
	410
	411	ifneq ($(BUILD_CC),$(CC))
	412	cross-compiling := yes
	413	else
	414	cross-compiling := no
	415	endif
	416
	417
	418	endif # Makeconfig not yet included