Re: [Boost-users] Boost link error with mingw

Subject: Re: [Boost-users] Boost link error with mingw
From: Eugen Dedu (Eugen.Dedu_at_[hidden])
Date: 2010-07-25 13:28:35

On 25/07/10 19:15, Steven Watanabe wrote:
> AMDG

Thank you for the answer, see below.

> Eugen Dedu wrote:
>> We compile ekiga for windows and boost signals is one of its
>> dependencies, so we need to compile it for windows. I use gcc-mingw32
>> from debian unstable (gcc configured for mingw, version 4.4.4-0.1) and
>> I do like this:
>> - download boost 1.43.0
>> - echo "using gcc : : i586-mingw32msvc-gcc : ;"
>> >$(BOOST_DIR)/user-config.jam
>> - cd $(BOOST_DIR); ./bjam $(confboost)
>> <snip>
>> I have discovered that the link can proceed if I do:
>> - echo "using gcc : : i586-mingw32msvc-g++ : ;"
>> >$(BOOST_DIR)/user-config.jam
>> - cd $(BOOST_DIR); ./bjam $(confboost)
>>
>> i.e. compile again after changing gcc to g++, but of course this is a
>> workaround. How to solve it properly?
>
> No. Using g++ is the correct solution.

Shame on me.  I tried also g++ but compiled with other flags, and the 
errors were surely in other place.  So it works with g++, thank you.

>> Second, I execute afterwards:
>> - cd $(BOOST_DIR); ./bjam $(confboost) install
>> 2. Is $(confboost) still needed or not for install?
>
> Yes. You'd actually be better off just running the install.
> It will build everything it needs.

Ok.

>> 3. This command does nothing for about 1 minute 30 secs (I thought at
>> the beginning that it simply does not work, fortunately I let it
>> execute more than 10 seconds to see what happens), and only afterwards
>> copy the files.
>
> This is normal.

Is it normal to wait for about 100 seconds?!

>> Executing through strace shows many lines like this:
>> brk(0x6116000) = 0x6116000
>> and these lines take almost all the installation time.

-- 
Eugen Dedu