Re: [boost] [tools][bcp] using boost internally in other libraries

From: bjorn_at_[hidden]
Date: 2005-09-25 19:03:30

On Saturday 24 September 2005 21:38, Bjørn Roald wrote:
> John Maddock said:
> > I guess the we'd just have to try it and see if any current libraries
> > break
> > this idiom.
>
>  I will try some more ...

I did some testing with my modified bcp tool,

First I called bcp to copy some modules to /tmp/bcp and replace namespace 
boost with spoost "spooked boost" :)

[bjorn_at_frodo boost]$ tools/bcp/run/bcp --cvs --namespace=spoost filesystem 
program_options boost-build.jam build Jamrules project-root.jam /tmp/bcp/
[bjorn_at_frodo debug]$ cd /tmp/bcp/
[bjorn_at_frodo bcp]$ ls -l
total 44
drwxrwxr-x   3 bjorn bjorn 4096 Sep 25 23:47 bin
-r--r--r--   1 bjorn bjorn  482 Sep 25 23:44 boost-build.jam
-r--r--r--   1 bjorn bjorn  616 Sep 25 23:44 boost.css
-r--r--r--   1 bjorn bjorn 6308 Sep 25 23:44 boost.png
-r--r--r--   1 bjorn bjorn  435 Sep 25 23:44 Jamrules
drwxrwxr-x   9 bjorn bjorn 4096 Sep 25 23:40 libs
-r--r--r--   1 bjorn bjorn   75 Sep 25 23:44 project-root.jam
drwxrwxr-x  18 bjorn bjorn 4096 Sep 25 23:44 spoost
drwxrwxr-x   3 bjorn bjorn 4096 Sep 25 23:45 stage
drwxrwxr-x   3 bjorn bjorn 4096 Sep 25 23:44 tools

I then compiled 
./lib/program_options/build
./lib/program_options/test
with plain "bjam" command in those directories
no errors during build and test run as far as I saw.

here are some checks I did on one of the test programs afterwords

[bjorn_at_frodo bcp]$ 
cd /tmp/bcp/bin/boost/libs/program_options/test/parsers_test.test/gcc/debug
[bjorn_at_frodo debug]$ ldd ./parsers_test
        libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00101000)
        libm.so.6 => /lib/tls/libm.so.6 (0x009b6000)
        libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x0098e000)
        libc.so.6 => /lib/tls/libc.so.6 (0x00a69000)
        /lib/ld-linux.so.2 (0x0099c000)
[bjorn_at_frodo debug]$ ./parsers_test
Running 1 test case...

*** No errors detected
[bjorn_at_frodo debug]$ nm -C ./parsers_test | grep boost | wc
      0       0       0
[bjorn_at_frodo debug]$ nm -C ./parsers_test | grep spoost | wc
   2491   35631  785706

Note that there are no "boost" string in any binary symbols, while all 2491 
boost symbols references are renamed "spoost" in binary.   

I also attached two source files so you can see the effect on the source.

As far as I can see, I have successfully demonstrated feasability of
an automated production line of boost library with modification to its 
namespace. 

A few questions before I go on to the next step:

Is there a simple way of getting bcp to copy all of boost, i.e. without having 
to list all modules?
 
And then; how do I run test on all of "spoost" and generate test reports that 
are suitable for evaluation?   I guess there is a target in boost.build of 
some sort I can try.

-----
Bjørn