[Boost-build] Need help: generate rule error

Subject: [Boost-build] Need help: generate rule error
From: Алексей Бадяев (leemouse_at_[hidden])
Date: 2009-04-29 00:07:34

Hi, All!

I need generate .def file for my library. I use second commands for it:
    echo EXPORTS > mylib.def
    nm mylib_1.obj | grep " T " | grep " _mylib_" | sed "s/^.* _//" 
 >>mylib.def
    ...
    nm mylib_N.obj | grep " T " | grep " _mylib_" | sed "s/^.* _//" 
 >>mylib.def

First, I create make target in my Jamfile, and it works (not always):
---------------------------------------------------------------------
make $(mylib-source-locate)/mylib.def
:   # sources
    $(MYLIB_OBJ)
:   # generator
    @mylib-def
;
rule mylib-def ( target : sources * : properties * )
{
    NM on $(target) = nm ;
}
actions mylib-def
{
    echo EXPORTS > "$(<)"
    $(NM) "$(>)" | grep " T " | grep " _mylib_" | sed "s/^.* _//" >>"$(<)"
}
explicit $(sqlite-source-locate)/sqlite3.def ;

When I use solution above, I get the error from Boost Build: "Action too 
long (8192 max)".

Then I rework with using generate rule (proces sources by one at time):
----------------------------------------------------------------------
rule generate-def ( project name : property-set : sources * )
{
    local result ;
    local a = [ new non-scanning-action : def-init : $(property-set) ] ;
    result += [ new file-target $(name) $(name) : : $(project) : $(a) ] ;
    for local s in $(sources)
    {
        a = [ new non-scanning-action $(s) : def-proc : $(property-set) ] ;
        result += [ new file-target $(name) $(name) : : $(project) : 
$(a) ] ;
    }
    return $(result) ;
}
rule def-init ( target : sources * : properties * )
{
}
actions def-init
{
    echo EXPORTS > "$(<)"
}
rule def-proc ( target : sources * : properties * )
{
}
actions def-proc
{
    $(NM) "$(>)" | grep " T " | grep " _mylib_" | sed "s/^.* _//" >>"$(<)"
}
generate mylib.def
:   $(MYLIB_OBJ)
:   <generating-rule>@generate-def
;
explicit mylib.def ;

BUT this code not work: Boost Build report me about error (this is all 
output from bjam):

*c:/devtools/libs/boost_1_38_0/tools/build/v2/kernel\modules.jam:103: in 
modules.call-in
rule def-init unknown in module object(non-scanning-action)@1337.
c:/devtools/libs/boost_1_38_0/tools/build/v2/util\indirect.jam:90: in 
indirect.call
c:/devtools/libs/boost_1_38_0/tools/build/v2/build\virtual-target.jam:758: 
in object(non-scanning-action)@1337.actualize
c:/devtools/libs/boost_1_38_0/tools/build/v2/build\virtual-target.jam:301: 
in actualize-action
c:/devtools/libs/boost_1_38_0/tools/build/v2/build\virtual-target.jam:489: 
in actualize-no-scanner
c:/devtools/libs/boost_1_38_0/tools/build/v2/build\virtual-target.jam:130: 
in object(file-target)@1338.actualize
c:/devtools/libs/boost_1_38_0/tools/build/v2/build\virtual-target.jam:779: 
in actualize-source-type
c:/devtools/libs/boost_1_38_0/tools/build/v2/build\virtual-target.jam:798: 
in actualize-sources
c:/devtools/libs/boost_1_38_0/tools/build/v2/build\virtual-target.jam:740: 
in object(action)@1508.actualize
c:/devtools/libs/boost_1_38_0/tools/build/v2/build\virtual-target.jam:301: 
in actualize-action
c:/devtools/libs/boost_1_38_0/tools/build/v2/build\virtual-target.jam:489: 
in actualize-no-scanner
c:/devtools/libs/boost_1_38_0/tools/build/v2/build\virtual-target.jam:130: 
in object(file-target)@1509.actualize
c:/devtools/libs/boost_1_38_0/tools/build/v2\build-system.jam:695: in load
c:\devtools\libs\boost_1_38_0\tools\build\v2/kernel\modules.jam:283: in 
import
c:\devtools\libs\boost_1_38_0\tools\build\v2\kernel\bootstrap.jam:138: 
in boost-build
c:\devtools\libs\boost_1_38_0\boost-build.jam:16: in module scope
*

-- 
С уважением, Алексей Бадяев
г. Кемерово пр-т Ленина 52 тел. [phone]