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#381 Undefined symbol when building Perl Modu
I am attempting to build the Perl modules for 4.2.4
under Win2000. After playing with the Makefile,
changing paths and such, SNMP.c complies, but upon
attempting to link, I get:
"unresolved symbol _tree_head"
I see tree_head in parse.c. The library, libsnmp.lib,
built Ok using Visual Studio.
Other changes:
1. used GNU regex.h
2. commented-out "#include system.h" in SNMP.xs. The
compiler claimed that both direct and _dir_struc were
multiply defined. SNMP.c will not compile with
system.h.
3. commented-out "#include <unistd.h>"
I see that _tree_head is referred to in libsnmp.lib.
Could this be a compiler issue when the library was
created?
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I'm getting this same problem!! Please respond ASAP if the
solution is known...
(Please send response to ronit_r@sanrad.com -- THANKS!!)
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I changed the following line (line 809 of SNMP.xs) :
extern struct tree *tree_head;
in
DLL_IMPORT struct tree *tree_head;
this fixes the compiler error.
(The problem is that the tree_head is one of the
three DATA symbols defined in libnsmp.def (visible data
symbols in dll). the MIB symbol has the DLL_IMPORT
declaration so it refers to a symbol in a DLL.
Willem Dekker
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Thanks for the bug report! We've fixed the problem for the next release of the net-snmp package.
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