Hi,

I'm trying to build a dynamic library using g77, and I've run into the

following problem:



g77 -o
/Users/willic3/MACGPS/build/lib/Darwin-6.x_ppc-shared,debug/libtecton.dylib

/Users/willic3/MACGPS/build/tmp/Darwin-6.x_ppc-shared,debug/tecton/tecton/*.o  
-dynamiclib -flat_namespace -undefined suppress -lcc_dynamic




ld: common symbols not allowed with MH_DYLIB output format with the
-multi_module option

/sw/lib/libg2c.a(lread.o) definition of common _f__lioproc (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__fmtbuf (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__init (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__units (size 4800)

/sw/lib/libg2c.a(lwrite.o) definition of common _L_len (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__curunit (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__donewrec (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__external (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__formatted (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__putn (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__reading (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__recpos (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__cblank (size 4)

/sw/lib/libg2c.a(err.o) definition of common f(char, float) (size 4)

/sw/lib/libg2c.a(err.o) definition of common f(char, long *,
short__restrict) (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__cursor (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__doed (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__doend (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__doned (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__dorevert (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__elist (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__hiwater (size 4)

/sw/lib/libg2c.a(fmt.o) definition of common _f__nonl (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__scale (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__sequential (size 4)

/sw/lib/libg2c.a(fmt.o) definition of common _f__workdone (size 4)

/sw/lib/libg2c.a(fmt.o) definition of common _f__cnt (size 40)

/sw/lib/libg2c.a(fmt.o) definition of common f(char,  *) (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__fmtlen (size 4)

/sw/lib/libg2c.a(fmt.o) definition of common _f__parenlvl (size 4)

/sw/lib/libg2c.a(fmt.o) definition of common f(char *) (size 4)

/sw/lib/libg2c.a(fmt.o) definition of common _f__ret (size 40)

/sw/lib/libg2c.a(fmt.o) definition of common _f__revloc (size 4)

/sw/lib/libg2c.a(fmt.o) definition of common f(long double,  *) (size 4)

/sw/lib/libg2c.a(uio.o) definition of common _f__reclen (size 4)

/sw/lib/libg2c.a(sue.o) definition of common _f__recloc (size 8)

/sw/lib/libg2c.a(lread.o) definition of common _f__lchar (size 4)

/sw/lib/libg2c.a(lread.o) definition of common _f__lcount (size 4)

/sw/lib/libg2c.a(lread.o) definition of common _f__lquit (size 4)

/sw/lib/libg2c.a(lread.o) definition of common _f__ltype (size 4)

/sw/lib/libg2c.a(lread.o) definition of common f(long, long long) (size 8)

/sw/lib/libg2c.a(lread.o) definition of common _f__ly (size 8)

/sw/lib/libg2c.a(lread.o) definition of common _l_eof (size 4)

/sw/lib/libg2c.a(lread.o) definition of common _l_getc (size 4)

/sw/lib/libg2c.a(lread.o) definition of common _l_ungetc (size 4)

/sw/lib/libg2c.a(lread.o) definition of common _nml_read (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__getn (size 4)

/sw/lib/libg2c.a(err.o) definition of common _f__icptr (size 4)

/sw/lib/libg2c.a(err.o) definition of common f(short, void, int, char)
(size 4)

/sw/lib/libg2c.a(lwrite.o) definition of common _f__Aquote (size 4)

/usr/bin/libtool: internal link edit command failed



make: ***
[/Users/willic3/MACGPS/build/lib/Darwin-6.x_ppc-shared,debug/libtecton.dylib] Error 1






A quick google search indicated the problem might be that g77 was built

without the -fno-common flag.  Is this likely to be the source of my

problem, or is there something more obvious that I'm missing?





Thanks,

Charles







Charles Williams

Dept. of Earth & Environmental Science

Science Center

Rensselaer Polytechnic Institute

Troy, NY  12180

phone:   (518) 276-8520

FAX:     (518) 276-6680

e-mail:  [EMAIL PROTECTED]



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