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.
8 # Copyright (C) 2000,2001 Erik Andersen <andersee@debian.org>
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.
30 # If you are running a cross compiler, you may want to set this
31 # to something more interesting... Target architecture is determined
32 # by asking this compiler what arch it compiles stuff for.
33 CROSS = #$(TARGET_ARCH)-linux-
38 STRIPTOOL = $(CROSS)strip
39 #STRIPTOOL = /bin/true
41 # Set the following to `true' to make a debuggable build, and `false' for
45 # Compiler warnings you want to see
48 # Note that the kernel source you use to compile with should be the same as the
49 # Linux kernel you run your apps on. uClibc doesn't even try to achieve binary
50 # compatibility across kernel versions. So don't expect, for example, uClibc
51 # compiled with Linux kernel 2.0.x to implement lchown properly, since 2.0.x
52 # can't do that. Similarly, if you compile uClibc vs Linux 2.4.x kernel headers,
53 # but then run on Linux 2.0.x, lchown will be compiled into uClibc, but won't
54 # work at all. You have been warned.
55 KERNEL_SOURCE=/usr/src/kernel-headers-2.2.19-sparc
57 # Set this to `false' if your CPU doesn't have a memory management unit (MMU).
58 # Set it to `true' otherwise.
61 # Set this to `false' if you don't have/need basic floating point support
62 # support in libc (strtod, printf, scanf). Set it to `true' otherwise.
63 # If this is not true, then libm will not be built.
64 HAS_FLOATING_POINT = true
66 # Set to `true' if you want the math library to contain the full set
67 # of C99 math library features. Costs an extra 35k or so on x86.
70 # Set this to `false' if you don't have/need "(unsigned) long long int" support.
71 # Set it to `true' otherwise.
72 # Affects *printf and *scanf functions.
73 # Also omits strto(u)ll, and (u)lltostr from the library if `false'.
76 # Set this to 'false if you don't need shadow password support.
79 # Set this to `false' if you don't have/need locale support; `true' otherwise.
80 # Note: Currently only affects the ctype functions. You must also generate
81 # a locale file for anything but the C locale. See directory extra/locale for
82 # a utility to do so. Also see the following option.
85 # Set this to the path of your uClibc locale file directory.
86 # Warning! This must be different than the glibc locale directory to avoid
87 # name conflicts, as the locale files are entirely different in format!
88 LOCALE_DIR = "/usr/share/uClibc-locale/"
90 # This specifies which malloc implementation is used.
91 # "malloc-simple" is very, very small, but is also very, very dumb
92 # and does not try to make good use of memory or clean up after itself.
94 # "malloc" on the other hand is a bit bigger, but is pretty smart thereby
95 # minimizing memory wastage and reusing already allocated memory. This
96 # can be lots faster and safer IMHO.
98 # "malloc-930716" is from libc-5.3.12 and was/is the standard gnu malloc.
99 # It is actually smaller than "malloc", at least on i386. Right now, it
100 # only works on i386 (and maybe m68k) because it needs sbrk.
101 #MALLOC = malloc-simple
103 #MALLOC = malloc-930716
105 # This architecture currently does not implement the brk syscall
106 # Having brk allows one to use malloc-930716, which is an order
107 # of magnitude faster then "malloc" for most allocations....
110 # If you want to collect common syscall code into one function, set to this to
111 # `true'. Set it to false otherwise.
112 # On i386 this saves about than 2.8k over all syscalls.
113 # The idea came from the implementation in dietlibc.
114 # At present, only affects i386.
115 UNIFIED_SYSCALL = false
117 # If you want large file support (greater then 2 GiB) turn this on.
118 # Do not enable this unless your kernel provides large file support.
121 # Posix regular expression code is really big -- 27k all by itself.
122 # If you don't use regular expressions, turn this off and save space.
123 # Of course, if you only staticly link, leave this on, since it will
124 # only be included in your apps if you use regular expressions.
127 # If you want to include RPC support, enable this. RPC is almost never used
128 # for anything except NFS support, so unless you plan to use NFS, leave this
129 # disabled. This is off by default.
132 # If you want to include support for the next version of the Internet
133 # Protocol: IP version 6, enable this. This is off by default.
136 # If you want to support only Unix 98 PTYs enable this. Some older
137 # applications may need this disabled. For most current programs,
138 # you can generally leave this true.
139 UNIX98PTY_ONLY = true
141 # Enable this if /dev/pts is on a devpts or devfs file system. Both
142 # these filesystems automatically manage permissions on the /dev/pts
143 # devices. You may need to mount this fs on /dev/pts for this to work.
144 # This is true by default.
148 # If you want to compile the library as PIC code, turn this on.
149 # This is automagically enabled when HAVE_SHARED is true
152 # Enable support for shared libraries? If this is false, you can
153 # ignore all the rest of the options in this file...
156 # uClibc has a native shared library loader for some architectures.
157 BUILD_UCLIBC_LDSO=false
159 # If you are using shared libraries, but do not want/have a native
160 # uClibc shared library loader, please specify the name of your
161 # system's shared library loader here...
162 #SYSTEM_LDSO=/lib/ld-linux.so.2
163 SYSTEM_LDSO=$(shell for each in `$(CC) -print-search-dirs| \
164 grep ^libraries| sed -e 's/^libraries: //' -e 's/:/ /g'`;\
165 do ls $$each/ld.so.* 2>/dev/null;done)
167 # When using shared libraries, this path is the location where the
168 # shared library will be invoked. This value will be compiled into
169 # every binary compiled with uClibc.
172 # If you do not have a shared library loader with the correct name
173 # sitting in the directory this points to, your binaries will not run.
174 SHARED_LIB_LOADER_PATH=$(DEVEL_PREFIX)/lib
176 # DEVEL_PREFIX is the directory into which the uClibc development
177 # environment will be installed. The result will look something
178 # like the following:
180 # bin/ <contains gcc, ld, etc>
181 # lib/ <contains all runtime and static libs>
182 # include/ <Where all the header files go>
183 # This value is used by the 'make install' Makefile target. Since this
184 # directory is compiled into the uclibc cross compiler spoofer, you
185 # have to recompile if you change this value...
186 DEVEL_PREFIX = /usr/$(TARGET_ARCH)-linux-uclibc
188 # SYSTEM_DEVEL_PREFIX is the directory prefix used when installing
189 # usr/bin/arch-uclibc-gcc, usr/bin/arch-uclibc-ld, etc. This is only
190 # used by the 'make install' target, and is not compiled into anything.
191 # This defaults to $DEVEL_PREFIX, but makers of .rpms and .debs will
192 # want to set this to "/" instead.
193 SYSTEM_DEVEL_PREFIX = $(DEVEL_PREFIX)
195 # If you want 'make install' to install everything under a temporary
196 # directory, the define PREFIX during the install step,
197 # i.e., 'make PREFIX=/var/tmp/uClibc install'.
198 #PREFIX = $(TOPDIR)/_install