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 # Enable support for shared libraries?
56 # Note that the kernel source you use to compile with should be the same as the
57 # Linux kernel you run your apps on. uClibc doesn't even try to achieve binary
58 # compatibility across kernel versions. So don't expect, for example, uClibc
59 # compiled with Linux kernel 2.0.x to implement lchown properly, since 2.0.x
60 # can't do that. Similarly, if you compile uClibc vs Linux 2.4.x kernel headers,
61 # but then run on Linux 2.0.x, lchown will be compiled into uClibc, but won't
62 # work at all. You have been warned.
63 KERNEL_SOURCE=/usr/src/linux
65 # Set this to `false' if your CPU doesn't have a memory management unit (MMU).
66 # Set it to `true' otherwise.
69 # Set this to `false' if you don't have/need basic floating point support
70 # support in libc (strtod, printf, scanf). Set it to `true' otherwise.
71 # Note: If not true, Rules.mak disables libm as well.
72 HAS_FLOATING_POINT = true
74 # Set this to `false' if you don't have/need float functions in libm.
75 # Set it to `true' otherwise, and make sure HAS_FLOATING_POINT is true as well.
76 HAS_LIBM_FLOAT = false
78 # Set this to `false' if you don't have/need double functions in libm.
79 # Set it to `true' otherwise, and make sure HAS_FLOATING_POINT is true as well.
80 HAS_LIBM_DOUBLE = false
82 # Set this to `false' if you don't have/need long double functions in libm.
83 # Set it to `true' otherwise, and make sure HAS_FLOATING_POINT is true as well.
84 HAS_LIBM_LONG_DOUBLE = false
86 # Set this to `false' if you don't have/need "(unsigned) long long int" support.
87 # Set it to `true' otherwise.
88 # Affects *printf and *scanf functions.
89 # Also omits strto(u)ll, and (u)lltostr from the library if `false'.
92 # Set this to `false' if you don't have/need locale support; `true' otherwise.
93 # Note: Currently only affects the ctype functions. You must also generate
94 # a locale file for anything but the C locale. See directory extra/locale for
95 # a utility to do so. Also see the following option.
98 # Set this to the path of your uClibc locale file directory.
99 # Warning! This must be different than the glibc locale directory to avoid
100 # name conflicts, as the locale files are entirely different in format!
101 LOCALE_DIR = "/usr/share/uClibc-locale/"
103 # This specifies which malloc implementation is used.
104 # "malloc-simple" is very, very small, but is also very, very dumb
105 # and does not try to make good use of memory or clean up after itself.
107 # "malloc" on the other hand is a bit bigger, but is pretty smart thereby
108 # minimizing memory wastage and reusing already allocated memory. This
109 # can be lots faster and safer IMHO.
111 # "malloc-930716" is from libc-5.3.12 and was/is the standard gnu malloc.
112 # It is actually smaller than "malloc", at least on i386. Right now, it
113 # only works on i386 (and maybe m68k) because it needs sbrk.
114 #MALLOC = malloc-simple
116 #MALLOC = malloc-930716
118 # If you want to collect common syscall code into one function, set to this to
119 # `true'. Set it to false otherwise.
120 # On i386 this saves about than 2.8k over all syscalls.
121 # The idea came from the implementation in dietlibc.
122 # At present, only affects i386.
123 UNIFIED_SYSCALL = false
125 # If you want large file summit support (greater then 2 Gib),
126 # turn this on. This has no effect unless your kernel supports
127 # lfs. This currently does nothing, but may someday...
130 # If you want to include RPC support, enable this. RPC is almost never used
131 # for anything except NFS support, so unless you plan to use NFS, leave this
132 # disabled. This is off by default.
135 # If you want to compile the library as PIC code, turn this on.
138 # ROOT_DIR is the base directory which will be compiled into the uClibc
139 # runtime environment. When compiled as a shared library, the shared
140 # library loader will look in <ROOT_DIR>/lib and <ROOT_DIR>/usr/lib
141 # for shared libraries.
143 # DEVEL_PREFIX is the base directory which will be compiled into the uClibc
144 # development environment. The uClibc development environment will
145 # look for the uClibc header files under <DEVEL_PREFIX><ROOT_DIR>/usr/include,
146 # and for static libs and crt0.o in <DEVEL_PREFIX><ROOT_DIR>/usr/lib.
147 # Also, 'make install' will install the compiler tools to
148 # <DEVEL_PREFIX><ROOT_DIR>/bin and <DEVEL_PREFIX><ROOT_DIR>/usr/bin.
150 # TARGET_PREFIX is the directory under which 'make install' will install the
151 # uClibc runtime environment. This path does not get compiled into anything,
152 # and is provided simply to make it easier to build standalone target systems.
153 # Note: This doesn't do anything if there are no shared libs.
155 ROOT_DIR = /usr/$(TARGET_ARCH)-linux-uclibc