1 # Library Configuration rules for uClibc
3 # This file contains rules which are shared between multiple Makefiles. All
4 # normal configuration options live in the file named "Config". You probably
5 # should not mess with this file unless you know what you are doing...
7 # Copyright (C) 2000 by Lineo, inc.
10 # This program is free software; you can redistribute it and/or modify it under
11 # the terms of the GNU Library General Public License as published by the Free
12 # Software Foundation; either version 2 of the License, or (at your option) any
15 # This program is distributed in the hope that it will be useful, but WITHOUT
16 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17 # FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more
20 # You should have received a copy of the GNU Library General Public License
21 # along with this program; if not, write to the Free Software Foundation, Inc.,
22 # 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 # Derived in part from the Linux-8086 C library, the GNU C Library, and several
25 # other sundry sources. Files within this library are copyright by their
26 # respective copyright holders.
28 # If you are running a cross compiler, you may want to set this
29 # to something more interesting... Target architecture is determined
30 # by asking this compiler what arch it compiles stuff for.
37 STRIPTOOL = $(CROSS)strip
38 #STRIPTOOL = /bin/true
40 # Set the following to `true' to make a debuggable build, and `false' for
44 # Compiler warnings you want to see
47 # Note that the kernel source you use to compile with should be the same as the
48 # Linux kernel you run your apps on. uClibc doesn't even try to achieve binary
49 # compatibility across kernel versions. So don't expect, for example, uClibc
50 # compiled with Linux kernel 2.0.x to implement lchown properly, since 2.0.x
51 # can't do that. Similarly, if you compile uClibc vs Linux 2.4.x kernel headers,
52 # but then run on Linux 2.0.x, lchown will be compiled into uClibc, but won't
53 # work at all. You have been warned.
54 KERNEL_SOURCE=/usr/src/linux
56 # Set this to `false' if your CPU doesn't have a memory management unit (MMU).
57 # Set it to `true' otherwise.
60 # Set this to `false' if you don't have/need basic floating point support
61 # support in libc (strtod, printf, scanf). Set it to `true' otherwise.
62 # If this is not true, then libm will not be built.
63 HAS_FLOATING_POINT = true
65 # Set to `true' if you want the math library to contain the full set
66 # of C99 math library features. Costs an extra 35k or so on x86.
69 # Set this to `false' if you don't have/need "(unsigned) long long int" support.
70 # Set it to `true' otherwise.
71 # Affects *printf and *scanf functions.
72 # Also omits strto(u)ll, and (u)lltostr from the library if `false'.
75 # Set this to `false' if you don't have/need locale support; `true' otherwise.
76 # Note: Currently only affects the ctype functions. You must also generate
77 # a locale file for anything but the C locale. See directory extra/locale for
78 # a utility to do so. Also see the following option.
81 # Set this to the path of your uClibc locale file directory.
82 # Warning! This must be different than the glibc locale directory to avoid
83 # name conflicts, as the locale files are entirely different in format!
84 LOCALE_DIR = "/usr/share/uClibc-locale/"
86 # This specifies which malloc implementation is used.
87 # "malloc-simple" is very, very small, but is also very, very dumb
88 # and does not try to make good use of memory or clean up after itself.
90 # "malloc" on the other hand is a bit bigger, but is pretty smart thereby
91 # minimizing memory wastage and reusing already allocated memory. This
92 # can be lots faster and safer IMHO.
94 # "malloc-930716" is from libc-5.3.12 and was/is the standard gnu malloc.
95 # It is actually smaller than "malloc", at least on i386. Right now, it
96 # only works on i386 (and maybe m68k) because it needs sbrk.
97 MALLOC = malloc-simple
99 #MALLOC = malloc-930716
101 # If you want to collect common syscall code into one function, set to this to
102 # `true'. Set it to false otherwise.
103 # On i386 this saves about than 2.8k over all syscalls.
104 # The idea came from the implementation in dietlibc.
105 # At present, only affects i386.
106 UNIFIED_SYSCALL = false
108 # If you want large file support (greater then 2 GiB) turn this on.
109 # Do not enable this unless your kernel provides large file support.
112 # Posix regular expression code is really big -- 27k all by itself.
113 # If you don't use regular expressions, turn this off and save space.
114 # Of course, if you only staticly link, leave this on, since it will
115 # only be included in your apps if you use regular expressions.
118 # If you want to include RPC support, enable this. RPC is almost never used
119 # for anything except NFS support, so unless you plan to use NFS, leave this
120 # disabled. This is off by default.
123 # If you want to include support for the next version of the Internet
124 # Protocol: IP version 6, enable this. This is off by default.
127 # If you want to compile the library as PIC code, turn this on.
131 # ARCH_CFLAGS if your have something special to add to the CFLAGS
133 ARCH_CFLAGS = -Wa,--bitwise-or
135 # this is needed for 2.4 m68knommu builds
137 ARCH_CFLAGS2 = -I$(KERNEL_SOURCE)/include
139 # get this from elsewhere, maybe
141 OPTIMIZATION = $(DEBUG_CFLAGS)
145 # Enable support for shared libraries? If this is false, you can
146 # ignore all the rest of the options in this file...
149 # uClibc has a native shared library loader for some architectures.
150 BUILD_UCLIBC_LDSO=false
152 # If you are using shared libraries, but do not want/have a native
153 # uClibc shared library loader, please specify the name of your
154 # system's shared library loader here...
155 #SYSTEM_LDSO=/lib/ld-linux.so.2
157 # When using shared libraries, this path is the location where the
158 # shared library will be invoked. This value will be compiled into
159 # every binary compiled with uClibc.
162 # If you do not have a shared library loader with the correct name
163 # sitting in the directory this points to, your binaries will not run.
164 SHARED_LIB_LOADER_PATH=$(DEVEL_PREFIX)/lib
166 # DEVEL_PREFIX is the directory into which the uClibc development
167 # environment will be installed. The result will look something
168 # like the following:
170 # bin/ <contains gcc, ld, etc>
171 # lib/ <contains all runtime and static libs>
172 # include/ <Where all the header files go>
173 # This value is used by the 'make install' Makefile target. Since this
174 # directory is compiled into the uclibc cross compiler spoofer, you
175 # have to recompile if you change this value...
176 DEVEL_PREFIX = /usr/$(TARGET_ARCH)-linux-uclibc
178 # SYSTEM_DEVEL_PREFIX is the directory prefix used when installing
179 # bin/arch-uclibc-gcc, bin/arch-uclibc-ld, etc. This is only used by
180 # the 'make install' target, and is not compiled into anything. This
181 # defaults to $DEVEL_PREFIX/usr, but makers of .rpms and .debs will
182 # want to set this to "/usr" instead.
183 SYSTEM_DEVEL_PREFIX = $(DEVEL_PREFIX)/usr
185 # If you want 'make install' to install everything under a temporary
186 # directory, the define PREFIX during the install step,
187 # i.e., 'make PREFIX=/var/tmp/uClibc install'.
188 #PREFIX = $(TOPDIR)/_install