RE: [Boost-users] Re: why so many .so and .a files for boost?

From: Tom Tan (SH/RDC) (tom.tan_at_[hidden])
Date: 2005-04-20 02:09:35

got it, then why do i have to turn on the '-pthread' option of g++ when using boost_thread library?
        

-----Original Message-----
From: boost-users-bounces_at_[hidden]
[mailto:boost-users-bounces_at_[hidden]]
Sent: Wednesday, April 20, 2005 14:51
To: boost-users_at_[hidden]
Subject: [Boost-users] Re: why so many .so and .a files for boost?

Tom Tan (SH/RDC) wrote:
> Hi, all, 
> Why are there so many .so and .a files in $BOOT_HOME/lib? Take
boost_singal as an example, there are about a dozen . They are:
> 	libboost_signals-gcc-1_32.a
> 	libboost_signals-gcc-1_32.so
> 	libboost_signals-gcc.a
> 	libboost_signals-gcc.so
> 	libboost_signals-gcc-d-1_32.a
> 	libboost_signals-gcc-d-1_32.so
> 	libboost_signals-gcc-mt.a
> 	libboost_signals-gcc-mt-d-1_32.so
> 	....
> I wonder what are 'd' and 'mt' mean? "debug" and "mutil-thread"? If
so, i wonder when i use a 'mt' thread , e.g.
libboost_signals-gcc-mt-d-1_32.so, will i have to use -pthread for Linux
and -pthreads for Solaris along with my other g++ compile options. Why?
> Another, for stdc++.so, are there two versions , each for
'mutil-thread' and 'sigal-thread' support? What's the relationship
between these versions and the compiler options like '-pthread' ?

Answers at.. http://www.boost.org/more/getting_started.html#Results

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