diff options
Diffstat (limited to 'INSTALL')
| -rw-r--r-- | INSTALL | 55 |
1 files changed, 27 insertions, 28 deletions
@@ -15,8 +15,8 @@ activate them, and they will be compiled into the library. As of the unusual installation, you should get this. Support for POSIX threads is maintained by someone else, so it's in a -separate package. It is only available for Linux systems, but this will -change in the future. Get it from the same place you got the main +separate package. It is only available for GNU/Linux systems, but this +will change in the future. Get it from the same place you got the main bundle; the file is `glibc-linuxthreads-VERSION.tar.gz'. You will need recent versions of several GNU tools: definitely GCC @@ -28,7 +28,7 @@ Configuring and compiling GNU Libc GNU libc can be compiled in the source directory, but we strongly advise building it in a separate build directory. For example, if you -have unpacked the glibc sources in `/src/gnu/glibc-2.2.0', create a +have unpacked the glibc sources in `/src/gnu/glibc-2.3', create a directory `/src/gnu/glibc-build' to put the object files in. This allows removing the whole build directory in case an error occurs, which is the safest way to get a fresh start and should always be done. @@ -36,7 +36,7 @@ which is the safest way to get a fresh start and should always be done. From your object directory, run the shell script `configure' located at the top level of the source tree. In the scenario above, you'd type - $ ../glibc-2.2.0/configure ARGS... + $ ../glibc-2.3/configure ARGS... Please note that even if you're building in a separate build directory, the compilation needs to modify a few files in the source @@ -88,7 +88,7 @@ will be used, and CFLAGS sets optimization options for the compiler. `--enable-add-ons=linuxthreads' `--enable-kernel=VERSION' - This option is currently only useful on Linux systems. The + This option is currently only useful on GNU/Linux systems. The VERSION parameter should have the form X.Y.Z and describes the smallest version of the Linux kernel the generated library is expected to support. The higher the VERSION number is, the less @@ -169,11 +169,10 @@ but isn't. Look for error messages from `make' containing `***'. Those indicate that something is seriously wrong. The compilation process can take several hours. Expect at least two -hours for the default configuration on i586 for Linux. For Hurd, times -are much longer. Except for EGCS 1.1 and GCC 2.95 (and later versions -of GCC), all supported versions of GCC have a problem which causes them -to take several minutes to compile certain files in the iconvdata -directory. Do not panic if the compiler appears to hang. +hours for the default configuration on i586 for GNU/Linux. For Hurd, +times are much longer. Some complex modules may take a very long time +to compile, as much as several minutes on slower machines. Do not +panic if the compiler appears to hang. If you want to run a parallel make, simply pass the `-j' option with an appropriate numeric parameter to `make'. You need a recent GNU @@ -247,7 +246,7 @@ order given above. You may also need to reconfigure GCC to work with the new library. The easiest way to do that is to figure out the compiler switches to make it work again (`-Wl,--dynamic-linker=/lib/ld-linux.so.2' should -work on Linux systems) and use them to recompile gcc. You can also +work on GNU/Linux systems) and use them to recompile gcc. You can also edit the specs file (`/usr/lib/gcc-lib/TARGET/VERSION/specs'), but that is a bit of a black art. @@ -303,19 +302,19 @@ build the GNU C library: recommend GNU `make' version 3.79. All earlier versions have severe bugs or lack features. - * GCC 2.95 or newer + * GCC 3.2 or newer The GNU C library can only be compiled with the GNU C compiler - family. As of the 2.2 release, GCC 2.95.2 or higher is required. - As of this writing, GCC 2.95.3 is the compiler we advise to use. + family. As of the 2.3 release, GCC 3.2 or higher is required. As + of this writing, GCC 3.2 is the compiler we advise to use. You can use whatever compiler you like to compile programs that use GNU libc, but be aware that both GCC 2.7 and 2.8 have bugs in their floating-point support that may be triggered by the math library. - For PPC you might need some patches even on top of the last GCC - version. See the FAQ. + Check the FAQ for any special compiler issues on particular + platforms. * GNU `binutils' 2.10.1 or later @@ -441,17 +440,17 @@ some `i686' specific instructions. To generate code for other models, you have to configure for that model and give GCC the appropriate `-march=' and `-mcpu=' compiler switches via CFLAGS. -Specific advice for Linux systems -================================= - - If you are installing GNU libc on a Linux system, you need to have -the header files from a 2.2 or newer kernel around for reference. For -some architectures, like ia64, sh and hppa, you need at least headers -from kernel 2.3.99 (sh and hppa) or 2.4.0 (ia64). You do not need to -use that kernel, just have its headers where glibc can access at them. -The easiest way to do this is to unpack it in a directory such as -`/usr/src/linux-2.2.1'. In that directory, run `make config' and -accept all the defaults. Then run `make include/linux/version.h'. +Specific advice for GNU/Linux systems +===================================== + + If you are installing GNU libc on a GNU/Linux system, you need to +have the header files from a 2.2 or newer kernel around for reference. +For some architectures, like ia64, sh and hppa, you need at least +headers from kernel 2.3.99 (sh and hppa) or 2.4.0 (ia64). You do not +need to use that kernel, just have its headers where glibc can access +at them. The easiest way to do this is to unpack it in a directory +such as `/usr/src/linux-2.2.1'. In that directory, run `make config' +and accept all the defaults. Then run `make include/linux/version.h'. Finally, configure glibc with the option `--with-headers=/usr/src/linux-2.2.1/include'. Use the most recent kernel you can get your hands on. @@ -468,7 +467,7 @@ to get rid of the old header files anyway. symlinks into the kernel sources. GNU libc provides its own versions of these files. - Linux expects some components of the libc installation to be in + GNU/Linux expects some components of the libc installation to be in `/lib' and some in `/usr/lib'. This is handled automatically if you configure glibc with `--prefix=/usr'. If you set some other prefix or allow it to default to `/usr/local', then all the components are |