Re: 【GCC version can not be changed】

2018-05-06 Thread Liu Hao

在 2018/5/5 20:13, 夏晗 写道:

root@Xia-Ubuntu:/usr/bin# gcc -v
使用内建 specs。
COLLECT_GCC=gcc
目标:x86_64-pc-linux-gnu
配置为:../configure -enable-checking=release -enable-languages=c,c++ 
-disable-multilib
线程模型:posix
gcc 版本 6.2.0 (GCC)
I have tried many methods like 'ln' and priority changing, but 'gcc -v' still 
maintain at '6.2.0'...



If you are using Ubuntu, the command `gcc` is a symlink to whichever 
version selected by your Ubuntu release and is the one used to build all 
system packages. Consequently, using a different target might result in 
binary incompatibility and is not recommended.


If you would like to invoke a different version of GCC, append the 
version number to it. This is true for all official releases and PPA 
packages.


For example, to invoke GCC 7 explicitly, you have to ensure it is 
installed by running `sudo apt-get install gcc-7`. The command `gcc-7` 
will be available thereafter and can be invoked either directly or 
indirectly by setting the `CC` environment variable.


--
Best regards,
LH_Mouse



Successful bootsrap of gcc 8.1.0 on x86_64-w64-mingw32

2018-05-06 Thread Rainer Emrich
Bootstrap is done with msys2 on Windows 7. For the testsuite results see
https://gcc.gnu.org/ml/gcc-testresults/2018-05/msg00583.html



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gcc-9-20180506 is now available

2018-05-06 Thread gccadmin
Snapshot gcc-9-20180506 is now available on
  ftp://gcc.gnu.org/pub/gcc/snapshots/9-20180506/
and on various mirrors, see http://gcc.gnu.org/mirrors.html for details.

This snapshot has been generated from the GCC 9 SVN branch
with the following options: svn://gcc.gnu.org/svn/gcc/trunk revision 259982

You'll find:

 gcc-9-20180506.tar.xzComplete GCC

  SHA256=dde70aaeb5569e422245051e4d3975e8dcc5a5ea8d0ee6f742dad4021908a7b6
  SHA1=f4ce8a1c911af280366828e1dcf93112eac7664f

Diffs from 9-20180429 are available in the diffs/ subdirectory.

When a particular snapshot is ready for public consumption the LATEST-9
link is updated and a message is sent to the gcc list.  Please do not use
a snapshot before it has been announced that way.