mwette%newton@hub.ucsb.edu (Matt Wette) (02/22/88)
Please help. I'm compiling GNU C++ (1.18.0) on a Sun 3/60 running SunOS 3.4
with SunPro installed. The loader (ld) complains with
Undefined:
_obstack_free
*** Error code 1
For the sun (non-"_STDC_") compiler obstack_free gets more-or-less expanded
to "_obstack_free". This function (actually macro) is called in lex.c and
tree.c. When I "cc -E lex.c" I get
.
.
_obstack_begin (...
.
.
... : (int) _obstack_free (...
.
.
However "nm lex.o" gives me
.
.
U __obstack_begin
.
.
U _obstack_free
What gives?
macro definitions for "obstack_begin" and "obstack_free" are, respectively,
#define obstack_begin(h, size) \
_obstack_begin ((h), (size), 4, obstack_chunk_alloc, obstack_chunk_free)
#define obstack_free(h,obj) \
( (h)->temp = (char *)(obj) - (char *) (h)->chunk, \
(((h)->temp >= 0 && (h)->temp < (h)->chunk_limit - (char *) (h)->chunk)\
? (int) ((h)->next_free = (h)->object_base \
= (h)->temp + (char *) (h)->chunk) \
: (int) _obstack_free ((h), (h)->temp + (char *) (h)->chunk)))
#endif
Matt
_____________________________________________________________________________
Matthew R. Wette | ARPA: mwette%gauss@hub.ucsb.edu
Scientific Computation Lab | UUCP: ucbvax!ucsbhub!gauss!mwette
Dept. Elec. and Comp. Eng. |
University of California |
Santa Barbara, CA 93106 |
-----------------------------------------------------------------------------phr@web5b.berkeley.edu (Paul Rubin) (02/23/88)
>[Person describes problem with undefined symbols resulting from use of obstack]
You forgot to link obstack.o into the program. Perhaps that is a makefile
bug, although I think the makefile has a comment to the effect that you
must change it if you haven't installed obstack.o in /usr/lib on your system.
Send bugs of this sort to bug-g++@prep.ai.mit.edu.
paul rubin