1 # Library Configuration rules for uClibc
3 # This file contains rules which are shared between multiple Makefiles. Feel
4 # free to adjust to taste...
5 # -Erik Andersen <andersen@lineo.com> <andersee@debian.org>
7 # Copyright (C) 2000 by Lineo, inc.
9 # This program is free software; you can redistribute it and/or modify it under
10 # the terms of the GNU Library General Public License as published by the Free
11 # Software Foundation; either version 2 of the License, or (at your option) any
14 # This program is distributed in the hope that it will be useful, but WITHOUT
15 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
16 # FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more
19 # You should have received a copy of the GNU Library General Public License
20 # along with this program; if not, write to the Free Software Foundation, Inc.,
21 # 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 # Derived in part from the Linux-8086 C library, the GNU C Library, and several
24 # other sundry sources. Files within this library are copyright by their
25 # respective copyright holders.
27 # What arch do you want to compile for...
35 # If you are running a cross compiler, you may want to set this
36 # to something more interesting...
43 STRIPTOOL = $(CROSS)strip
44 #STRIPTOOL = /bin/true
46 # Set the following to `true' to make a debuggable build, and `false' for
50 # Compiler warnings you want to see
53 # Note that the kernel source you use to compile with should be the same as the
54 # Linux kernel you run your apps on. uClibc doesn't even try to achieve binary
55 # compatibility across kernel versions. So don't expect, for example, uClibc
56 # compiled with Linux kernel 2.0.x to implement lchown properly, since 2.0.x
57 # can't do that. Similarly, if you compile uClibc vs Linux 2.4.x kernel headers,
58 # but then run on Linux 2.0.x, lchown will be compiled into uClibc, but won't
59 # work at all. You have been warned.
60 KERNEL_SOURCE=/home/andersen/CVS/uClinux-2.0.x
62 # Set this to `false' if your CPU doesn't have a memory management unit (MMU).
63 # Set it to `true' otherwise.
66 # Set this to `false' if you don't have/need basic floating point support
67 # support in libc (strtod, printf, scanf). Set it to `true' otherwise.
68 # If this is not true, then libm will not be built.
69 HAS_FLOATING_POINT = true
71 # Set to `true' if you want the math library to contain the full set
72 # of C99 math library features. Costs an extra 35k or so on x86.
75 # Set this to `false' if you don't have/need "(unsigned) long long int" support.
76 # Set it to `true' otherwise.
77 # Affects *printf and *scanf functions.
78 # Also omits strto(u)ll, and (u)lltostr from the library if `false'.
81 # Set this to `false' if you don't have/need locale support; `true' otherwise.
82 # Note: Currently only affects the ctype functions. You must also generate
83 # a locale file for anything but the C locale. See directory extra/locale for
84 # a utility to do so. Also see the following option.
87 # Set this to the path of your uClibc locale file directory.
88 # Warning! This must be different than the glibc locale directory to avoid
89 # name conflicts, as the locale files are entirely different in format!
90 LOCALE_DIR = "/usr/share/uClibc-locale/"
92 # This specifies which malloc implementation is used.
93 # "malloc-simple" is very, very small, but is also very, very dumb
94 # and does not try to make good use of memory or clean up after itself.
96 # "malloc" on the other hand is a bit bigger, but is pretty smart thereby
97 # minimizing memory wastage and reusing already allocated memory. This
98 # can be lots faster and safer IMHO.
100 # "malloc-930716" is from libc-5.3.12 and was/is the standard gnu malloc.
101 # It is actually smaller than "malloc", at least on i386. Right now, it
102 # only works on i386 (and maybe m68k) because it needs sbrk.
103 MALLOC = malloc-simple
105 #MALLOC = malloc-930716
107 # If you want to collect common syscall code into one function, set to this to
108 # `true'. Set it to false otherwise.
109 # On i386 this saves about than 2.8k over all syscalls.
110 # The idea came from the implementation in dietlibc.
111 # At present, only affects i386.
112 UNIFIED_SYSCALL = false
114 # If you want large file summit support (greater then 2 Gib),
115 # turn this on. This has no effect unless your kernel supports
116 # lfs. This currently does nothing, but may someday...
119 # If you want to include RPC support, enable this. RPC is almost never used
120 # for anything except NFS support, so unless you plan to use NFS, leave this
121 # disabled. This is off by default.
124 # If you want to include support for the next version of the Internet
125 # Protocol: IP version 6, enable this. This is off by default.
128 # If you want to compile the library as PIC code, turn this on.
133 # Enable support for shared libraries? If this is false, you can
134 # ignore all the rest of the options in this file...
137 # uClibc has a native shared library loader for some architectures.
138 BUILD_UCLIBC_LDSO=false
140 # If you are using shared libraries, but do not want/have a native
141 # uClibc shared library loader, please specify the name of your
142 # system's shared library loader here...
143 #SYSTEM_LDSO=/lib/ld-linux.so.2
145 # When using shared libraries, this path is the location where the
146 # shared library will be invoked. This value will be compiled into
147 # every binary compiled with uClibc.
150 # If you do not have a shared library loader with the correct name
151 # sitting in the directory this points to, your binaries will not run.
152 #SHARED_LIB_LOADER_PATH=$(DEVEL_PREFIX)/lib
154 # DEVEL_PREFIX is the directory into which the uClibc development
155 # environment will be installed. The result will look something
156 # like the following:
158 # bin/ <contains gcc, ld, etc>
159 # lib/ <contains all runtime and static libs>
160 # include/ <Where all the header files go>
161 # This value is used by the 'make install' Makefile target. Since this
162 # directory is compiled into the uclibc cross compiler spoofer, you
163 # have to recompile if you change this value...
164 DEVEL_PREFIX = /opt/uClinux/$(TARGET_ARCH)-elf
166 # SYSTEM_DEVEL_PREFIX is the directory prefix used when installing
167 # usr/bin/arch-uclibc-gcc, usr/bin/arch-uclibc-ld, etc. This is only
168 # used by the 'make install' target, and is not compiled into anything.
169 # This defaults to $DEVEL_PREFIX, but makers of .rpms and .debs will
170 # want to set this to "/" instead.
171 SYSTEM_DEVEL_PREFIX = /
173 # If you want 'make install' to install everything under a temporary
174 # directory, the define PREFIX during the install step,
175 # i.e., 'make PREFIX=/var/tmp/uClibc install'.
176 #PREFIX = $(TOPDIR)/_install