RedHat， 64位， 安装GCC时的config

TOADLover

[root@ftpsvr gcc-4.6.0]# uname -a
Linux ftpsvr 2.6.18-194.el5 #1 SMP Tue Mar 16 21:52:39 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux


#gcc-3.4.0/configure --prefix=/usr/local/gcc-3.4.0 --enable-threads=posix --disable-checking --enable--long-long --host=i386-redhat-linux --with-system-zlib --enable-languages=c,c++,java

这些选项的意思怎么查看？

chenyx

gcc-3.4.0/configure --help就应该能看到选项的说明了

TOADLover

[root@ftpsvr gcc-4.6.0]# configure --help
-bash: configure: command not found
[root@ftpsvr gcc-4.6.0]#

bj161109

[root@ftpsvr gcc-4.6.0]# configure --help
-bash: configure: command not found
[root@ftpsvr gcc-4.6 ...
TOADLover 发表于 2011-06-23 09:26

你没有按照LS给你的命令执行了。。。。

TOADLover

[root@ftpsvr gcc-4.6.0]# /usr/local/src/gcc-4.6.0/configure --help
`configure' configures this package to adapt to many kinds of systems.

Usage: /usr/local/src/gcc-4.6.0/configure [OPTION]... [VAR=VALUE]...

TOADLover

不够详细。。。。

我在INSTALL下的index.html找到了。

TOADLover

--enable-threads
Specify that the target supports threads. This affects the Objective-C compiler and runtime library, and exception handling for other languages like C++ and Java. On some systems, this is the default.
In general, the best (and, in many cases, the only known) threading model available will be configured for use. Beware that on some systems, GCC has not been taught what threading models are generally available for the system. In this case, --enable-threads is an alias for --enable-threads=single.


--disable-threads
Specify that threading support should be disabled for the system. This is an alias for --enable-threads=single.

--enable-threads=lib
Specify that lib is the thread support library. This affects the Objective-C compiler and runtime library, and exception handling for other languages like C++ and Java. The possibilities for lib are:
aix
AIX thread support.

dce
DCE thread support.

gnat
Ada tasking support. For non-Ada programs, this setting is equivalent to ‘single’. When used in conjunction with the Ada run time, it causes GCC to use the same thread primitives as Ada uses. This option is necessary when using both Ada and the back end exception handling, which is the default for most Ada targets.

mach
Generic MACH thread support, known to work on NeXTSTEP. (Please note that the file needed to support this configuration, gthr-mach.h, is missing and thus this setting will cause a known bootstrap failure.)

no
This is an alias for ‘single’.

posix
Generic POSIX/Unix98 thread support.

posix95
Generic POSIX/Unix95 thread support.

rtems
RTEMS thread support.

single
Disable thread support, should work for all platforms.

solaris
Sun Solaris 2/Unix International thread support. Only use this if you really need to use this legacy API instead of the default, ‘posix’.

vxworks
VxWorks thread support.

win32
Microsoft Win32 API thread support.

nks
Novell Kernel Services thread support.

TOADLover

--with-cpu=cpu
--with-cpu-32=cpu
--with-cpu-64=cpu
Specify which cpu variant the compiler should generate code for by default. cpu will be used as the default value of the -mcpu= switch. This option is only supported on some targets, including ARM, i386, M68k, PowerPC, and SPARC. The --with-cpu-32 and --with-cpu-64 options specify separate default CPUs for 32-bit and 64-bit modes; these options are only supported for i386, x86-64 and PowerPC.

TOADLover

这里的--with-cpu-64=cpu怎么配？

TOADLover

谁知道？