[Boost-build] "check-target-builds" does not fail when it should

Subject: [Boost-build] "check-target-builds" does not fail when it should
From: Artyom (artyomtnk_at_[hidden])
Date: 2010-09-21 03:53:15

Hello

Using boost-1.43

I have following Jam code.

    message m1 : "-- Searching for iconv support " ;
    exe has_iconv : ./has_iconv.cpp ;
    explicit has_iconv ;

    if [ check-target-builds has_iconv ]
    {
        message m2 : "--- Found in libc " ;
        OPTS = $(OPTS) <define>BOOST_LOCALE_WITH_ICONV=1 ;
    }

On Cygwin platform it reports "--- Found in libc" what it is clearly
can't be as

    $ g++ has_iconv.cpp
    /cygdrive/c/Temp/cc4YST3G.o:has_iconv.cpp:(.text+0x26): undefined reference 
to `_libiconv_open'
    collect2: ld returned 1 exit status

Clearly fails, as iconv must be linked.

Can somebody explain this? Should I use other rule?

Artyom