calling perl program from C++

baperl has asked for the wisdom of the Perl Monks concerning the following question:

hi, I am trying to compile this program

#include <EXTERN.h>
    #include <perl.h>
    static PerlInterpreter *my_perl;
    int main(int argc, char **argv, char **env)
    {
    char *args[] = { NULL };
    PERL_SYS_INIT3(&argc,&argv,&env);
    my_perl = perl_alloc();
    perl_construct(my_perl);
    perl_parse(my_perl, NULL, argc, argv, NULL);
    PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
    /*** skipping perl_run() ***/
    call_argv("showtime", G_DISCARD | G_NOARGS, args);
    perl_destruct(my_perl);
    perl_free(my_perl);
    PERL_SYS_TERM();
    }
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but I get the following error

 g++ fn-test.cpp -o t 'perl -MExtUtils::Embed -e ccopts -e ldopts'
g++: perl -MExtUtils::Embed -e ccopts -e ldopts: No such file or direc
+tory
fn-test.cpp:2:24: fatal error: EXTERN.h: No such file or directory
compilation terminated.
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I am working on ubuntu so I went into cpan and ran

force install ExtUtils::Embed
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it did it's thing for a while and now when I try to compile again, I get the same error. This is my first time trying to call a Perl program from C++, so any tips would be helpful.

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Re: calling perl program from C++ by ikegami (Patriarch) on Oct 01, 2011 at 21:28 UTC
You're using the wrong quotes. You are passing `perl -MExtUtils::Embed -e ccopts -e ldopts` as an argument instead of embedding its output in the shell command. Use backticks.	[reply] [d/l]
Re^2: calling perl program from C++ by baperl (Sexton) on Oct 01, 2011 at 22:29 UTC
well that works, but now my other perl programs give me the following error `Can't locate Date/Manip.pm in @INC (@INC contains: /usr/local/lib/per +l5/site_perl/5.15.2/i686-linux /usr/local/lib/perl5/site_perl/5.15.2 +/usr/local/lib/perl5/5.15.2/i686-linux /usr/local/lib/perl5/5.15.2 .)` [download] I went into CPAN and ran `force install Date::Manip`but it doesn't seem to work...any suggestions....I had it working before I ran the `force install ExtUtils::Embed`	[reply] [d/l] [select]
Re^3: calling perl program from C++ by ikegami (Patriarch) on Oct 01, 2011 at 22:42 UTC
ExtUtils::Embed is part of the perl distro. You told `cpan` to force the installation of Perl. God knows what effect that had, but I'm not going to try it to find out.	[reply] [d/l]
Re^4: calling perl program from C++ by baperl (Sexton) on Oct 01, 2011 at 22:48 UTC
Re^5: calling perl program from C++ by ikegami (Patriarch) on Oct 01, 2011 at 22:52 UTC
Some notes below your chosen depth have not been shown here
Re: calling perl program from C++ by Anonymous Monk on Oct 02, 2011 at 12:28 UTC
I don't want to say "RTFM" because that's not nice, but ... "go back and study the published examples very, very carefully."	[reply]