Before folks start jumping to conclusions please read carfully:

I really don't think its a binary issue since I'm not even using the binary. I'm linking with the -lperl -lcrypt libs, with includes files loocated typically in /usr/lib/perl5/5.8.X/i586-linux-thread-multi/CORE

I'm running an embedded perl script in some C++ code, using one of the commonly available example perl stack routines.

int psCheck( const char* prog_name )
{
   dSP;
   int ret;
   int count = 0;

   ENTER;
   SAVETMPS;
   PUSHMARK( SP );
   XPUSHs( sv_2mortal( newSVpv( prog_name, 0 ) ) );
   PUTBACK;
   ret = call_pv("psCheck", G_SCALAR);
   SPAGAIN;


   if (ret != 1)
      croak("Big trouble\n" ;

   count = POPi;
   PUTBACK;
   FREETMPS;
   LEAVE;
   return count;
}
[download]

The errors:

adaptermain.cpp: In function `int psCheck(const char*)': 
*adaptermain.cpp:365: error: `push_scope' undeclared (first use this f
+unction) 
*adaptermain.cpp:365: error: (Each undeclared identifier is reported o
+nly once  
*for each function it appears in.) 
*adaptermain.cpp:366: error: `save_int' undeclared (first use this fun
+ction) 
*adaptermain.cpp:368: error: `markstack_grow' undeclared (first use th
+is function) 
*adaptermain.cpp:369: error: `stack_grow' undeclared (first use this f
+unction) 
*adaptermain.cpp:369: error: `newSVpv' undeclared (first use this func
+tion) 
*adaptermain.cpp:369: error: `sv_2mortal' undeclared (first use this f
+unction) 
*adaptermain.cpp:372: error: `call_pv' undeclared (first use this func
+tion) 
*adaptermain.cpp:377: error: `croak' undeclared (first use this functi
+on) 
*adaptermain.cpp:379: error: `sv_2iv' undeclared (first use this funct
+ion) 
*adaptermain.cpp:381: error: `free_tmps' undeclared (first use this fu
+nction) 
*adaptermain.cpp:382: error: `pop_scope' undeclared (first use this fu
+nction)
[download]

All the routines defined within the MACRO definitions come back as undefined. For example ENTER, which uses push_scope, my compiler (3.3.3) says is undefined. I recall this issue way back when I wrote this code and for the life of me I can't figure out what I did to fix it then.

I have included the needed <EXTERN.h> and <perl.h> files.

Whatever is needed to be done, I'm sure it has nothing to do with compilation options, makefiles or code since this was all fine before and I have handled then in my makefiles. It must be an environment issue which I might have been left out (LD_LIBRARY_PATH, or PATH for example).

This does not seem to be a very generic issue, since google turns up little, that is applicable.