[build] cannot specify different version of gcc
Hi, I'm trying to build boost on CentOS 5.5 using the /usr/bin/gcc44 compiler and I'm running into difficulties with documentation not fitting reality. How do I make this work? What I've tried... Note: I've removed /usr/bin/gcc and /usr/bin/g++ to force errors when gcc44 and g++44 are not used. Using ./bootstrap.sh Building Boost.Jam with toolset ... tools/jam/src/### ### No toolset specified. Please use --toolset option. Setting CC=/usr/bin/gcc44 and CXX=/usr/bin/g++44 (note that this won't work if gcc and g++ exist because then it will default to the gcc toolkit and not the gcc-4.4 toolkit that I want). This builds a number of things (looking at the bootstrap.log) but still gives the following error. Ignoring the error and calling ./bjam then fails. Building Boost.Jam with toolset ... tools/jam/src/### ### No toolset specified. Please use --toolset option. Using ./bootstrap.sh --toolset=gcc gives an error: unrecognized option: --toolset=gcc Using ./bootstrap.sh --with-toolset=gcc gives an error: Building Boost.Jam with toolset gcc... Failed to build Boost.Jam -> bootstrap.log shows that it is trying to build with gcc, which doesn't exist, therefore error. Using ./bootstrap.sh --with-toolset=gcc-4.4 gives an error: Building Boost.Jam with toolset gcc... Failed to build Boost.Jam -> bootstrap.log shows ### Unknown toolset: gcc-4.4 Creating ~/user-config.jam as: import toolset.using ; using gcc : 4.4 : g++44 ; export BOOST_USER_CONFIG=~/user-config.jam Then calling the same ./bootstrap.sh command lines above show no difference. How in the world do I get this thing to use /usr/bin/gcc44 and /usr/bin/g++44 to compile? I think that I'm going to have to create local links ./gcc -> /usr/bin/gcc44 and add the current directory to the path just to get this to build the way that I want it to. This seems crazy. Regards, Brodie
I'll simplify the question in order to try again for help.
I have found that the only way I can force boost 1.44.0 to build on
linux using a version of gcc installed as /usr/bin/gcc44 is to create
a symlink of gcc -> /usr/bin/gcc44 on the path. This can't be right.
Can anyone tell me how to specify an alternate compiler? See below for
the methods (from the documentation) that I have tried and found to
not work.
Regards,
Brodie
On Mon, Nov 1, 2010 at 8:21 AM, Brodie Thiesfield
Hi,
I'm trying to build boost on CentOS 5.5 using the /usr/bin/gcc44 compiler and I'm running into difficulties with documentation not fitting reality. How do I make this work?
What I've tried...
Note: I've removed /usr/bin/gcc and /usr/bin/g++ to force errors when gcc44 and g++44 are not used.
Using ./bootstrap.sh Building Boost.Jam with toolset ... tools/jam/src/### ### No toolset specified. Please use --toolset option.
Setting CC=/usr/bin/gcc44 and CXX=/usr/bin/g++44 (note that this won't work if gcc and g++ exist because then it will default to the gcc toolkit and not the gcc-4.4 toolkit that I want). This builds a number of things (looking at the bootstrap.log) but still gives the following error. Ignoring the error and calling ./bjam then fails. Building Boost.Jam with toolset ... tools/jam/src/### ### No toolset specified. Please use --toolset option.
Using ./bootstrap.sh --toolset=gcc gives an error: unrecognized option: --toolset=gcc
Using ./bootstrap.sh --with-toolset=gcc gives an error: Building Boost.Jam with toolset gcc... Failed to build Boost.Jam -> bootstrap.log shows that it is trying to build with gcc, which doesn't exist, therefore error.
Using ./bootstrap.sh --with-toolset=gcc-4.4 gives an error: Building Boost.Jam with toolset gcc... Failed to build Boost.Jam -> bootstrap.log shows ### Unknown toolset: gcc-4.4
Creating ~/user-config.jam as: import toolset.using ; using gcc : 4.4 : g++44 ;
export BOOST_USER_CONFIG=~/user-config.jam
Then calling the same ./bootstrap.sh command lines above show no difference.
How in the world do I get this thing to use /usr/bin/gcc44 and /usr/bin/g++44 to compile?
I think that I'm going to have to create local links ./gcc -> /usr/bin/gcc44 and add the current directory to the path just to get this to build the way that I want it to. This seems crazy.
Regards, Brodie
On Nov 7, 2010, at 9:21 PM, Brodie Thiesfield wrote:
I'll simplify the question in order to try again for help.
I have found that the only way I can force boost 1.44.0 to build on linux using a version of gcc installed as /usr/bin/gcc44 is to create a symlink of gcc -> /usr/bin/gcc44 on the path. This can't be right.
Can anyone tell me how to specify an alternate compiler? See below for the methods (from the documentation) that I have tried and found to not work.
Part of the problem seems to be misleading / incorrect error messages:
### No toolset specified. Please use --toolset option.
seems to be an error message from bjam, but I think "--toolset" should instead be "toolset". I don't know anything about ./bootstrap.sh though. I use something like bjam toolset=gcc ... lots of other options ... with a user-config.jam file containing something like using gcc : : /usr/local/bin/mygcc : <cxxflags>="..." ; [Remember that whitespace separation matters in user-config.jam]
The file user-config.jam allow to you set a multiple gcc config. 1. copy tools/build/v2/user-config.jam into your $HOME directory 2. and set gcc 4.4 option # Configure specific gcc version, giving alternative name to use. using gcc : 4.4 : g++44 ; 3. run ./bootstrap.sh from boost root directory 4. run bjam with toolset option and your options like: ./bjam toolset=gcc-4.4 ----- Alexei Valyaev -- View this message in context: http://boost.2283326.n4.nabble.com/build-cannot-specify-different-version-of... Sent from the Boost - Users mailing list archive at Nabble.com.
participants (3)
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Brodie Thiesfield -
Kim Barrett -
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