Linking g77 programs

Linking g77 programs

[Chris]

To start with I will warn you that I am running redhat 7, which is improving 
considerably each time I use it and install an update.  On reflection I like 
the way no matter how unstable a UNIX systems supposed to be, it is still 
rock steady (at least in my case).

Anyway I think I have a problem with ld.  When I was running redhat 6.1 and 
presumbably a earlier version of binutils I had no problems doing the 
following.  I've tried doing a few things, but to no avail so far - I'm open 
for all amazing gobsmacking easy suggestions - I'm bound to have missed 
something.

I used to be able to do this.

g77 cstplb.f grdgnc.f

and it would produce a linked executable a.out in the standard unix manner.  
Now when I try it, it spews; I think would be an apt description.  I'm 
thinking that maybe I'm missing some option e.g. -lxxxxx where that's a 
library, but that should all be handled by g77 being called.

Here's what happens.

g77 cstplb.f grdgnc.f
/tmp/ccYXwoyo.o: In function `MAIN__':
/tmp/ccYXwoyo.o(.text+0x0): multiple definition of `MAIN__'
/tmp/ccEmR1CQ.o(.text+0x0): first defined here


/usr/bin/ld: Warning: size of symbol `MAIN__' changed from 4505 to 3323 in 

	I'm kind of curious as to what happens in the above line.
/tmp/ccYXwoyo.o
/tmp/ccEmR1CQ.o: In function `MAIN__':
/tmp/ccEmR1CQ.o(.text+0x4ab): undefined reference to `groute_'
/tmp/ccEmR1CQ.o(.text+0x4b3): undefined reference to `ropen_'
/tmp/ccEmR1CQ.o(.text+0x107b): undefined reference to `rclose_'
/tmp/ccEmR1CQ.o: In function `pspace_':
/tmp/ccEmR1CQ.o(.text+0x11ae): undefined reference to `grpsiz_'
/tmp/ccEmR1CQ.o(.text+0x1222): undefined reference to `gvport_'
/tmp/ccEmR1CQ.o(.text+0x123a): undefined reference to `gwbox_'
/tmp/ccEmR1CQ.o: In function `map_':
/tmp/ccEmR1CQ.o(.text+0x1264): undefined reference to `glimit_'
/tmp/ccEmR1CQ.o(.text+0x126c): undefined reference to `gscale_'
/tmp/ccEmR1CQ.o: In function `mapyl_':
/tmp/ccEmR1CQ.o(.text+0x12c6): undefined reference to `glimit_'
/tmp/ccEmR1CQ.o(.text+0x12ce): undefined reference to `gscale_'
/tmp/ccEmR1CQ.o: In function `mapxl_':
/tmp/ccEmR1CQ.o(.text+0x1379): undefined reference to `glimit_'
/tmp/ccEmR1CQ.o(.text+0x1381): undefined reference to `gscale_'
/tmp/ccEmR1CQ.o: In function `box_':
/tmp/ccEmR1CQ.o(.text+0x13ef): undefined reference to `gvect_'
/tmp/ccEmR1CQ.o: In function `axessi_':
/tmp/ccEmR1CQ.o(.text+0x141d): undefined reference to `box2mm_'
/tmp/ccEmR1CQ.o(.text+0x1432): undefined reference to `rtxhei_'
/tmp/ccEmR1CQ.o(.text+0x1448): undefined reference to `raxbti_'
/tmp/ccEmR1CQ.o(.text+0x145c): undefined reference to `box2mm_'
/tmp/ccEmR1CQ.o(.text+0x1479): undefined reference to `raxis_'
/tmp/ccEmR1CQ.o(.text+0x149f): undefined reference to `box2mm_'
/tmp/ccEmR1CQ.o(.text+0x14b4): undefined reference to `rtxhei_'
/tmp/ccEmR1CQ.o(.text+0x14ca): undefined reference to `raxbti_'
/tmp/ccEmR1CQ.o(.text+0x14de): undefined reference to `box2mm_'
/tmp/ccEmR1CQ.o(.text+0x14fb): undefined reference to `raxis_'
/tmp/ccEmR1CQ.o: In function `axeyli_':
/tmp/ccEmR1CQ.o(.text+0x152b): undefined reference to `box2mm_'
/tmp/ccEmR1CQ.o(.text+0x1540): undefined reference to `rtxhei_'
/tmp/ccEmR1CQ.o(.text+0x1556): undefined reference to `raxbti_'
/tmp/ccEmR1CQ.o(.text+0x156a): undefined reference to `box2mm_'
/tmp/ccEmR1CQ.o(.text+0x159f): undefined reference to `raxis_'
/tmp/ccEmR1CQ.o(.text+0x15bb): undefined reference to `raxaxl_'
/tmp/ccEmR1CQ.o(.text+0x15d7): undefined reference to `raxlfo_'
/tmp/ccEmR1CQ.o(.text+0x1635): undefined reference to `box2mm_'
/tmp/ccEmR1CQ.o(.text+0x164a): undefined reference to `rtxhei_'
/tmp/ccEmR1CQ.o(.text+0x165f): undefined reference to `raxpat_'
/tmp/ccEmR1CQ.o(.text+0x1673): undefined reference to `box2mm_'
/tmp/ccEmR1CQ.o(.text+0x1690): undefined reference to `raxis_'
/tmp/ccEmR1CQ.o: In function `axexli_':
/tmp/ccEmR1CQ.o(.text+0x16c7): undefined reference to `box2mm_'
/tmp/ccEmR1CQ.o(.text+0x16dc): undefined reference to `rtxhei_'
/tmp/ccEmR1CQ.o(.text+0x16f2): undefined reference to `raxbti_'
/tmp/ccEmR1CQ.o(.text+0x1706): undefined reference to `box2mm_'
/tmp/ccEmR1CQ.o(.text+0x173b): undefined reference to `raxis_'
/tmp/ccEmR1CQ.o(.text+0x1757): undefined reference to `raxaxl_'
/tmp/ccEmR1CQ.o(.text+0x1773): undefined reference to `raxlfo_'
/tmp/ccEmR1CQ.o(.text+0x17d1): undefined reference to `box2mm_'
/tmp/ccEmR1CQ.o(.text+0x17e6): undefined reference to `rtxhei_'
/tmp/ccEmR1CQ.o(.text+0x17fb): undefined reference to `raxpat_'
/tmp/ccEmR1CQ.o(.text+0x180f): undefined reference to `box2mm_'
/tmp/ccEmR1CQ.o(.text+0x182c): undefined reference to `raxis_'
/tmp/ccEmR1CQ.o: In function `contia_':
/tmp/ccEmR1CQ.o(.text+0x199b): undefined reference to `box2mm_'
/tmp/ccEmR1CQ.o(.text+0x19b0): undefined reference to `rtxhei_'
/tmp/ccEmR1CQ.o(.text+0x19c3): undefined reference to `rshade_'
/tmp/ccEmR1CQ.o(.text+0x19d9): undefined reference to `rclass_'
/tmp/ccEmR1CQ.o(.text+0x19f3): undefined reference to `gcnw2s_'
/tmp/ccEmR1CQ.o: In function `ptjoin_':
/tmp/ccEmR1CQ.o(.text+0x1b54): undefined reference to `gvect_'
/tmp/ccEmR1CQ.o: In function `pjoin2_':
/tmp/ccEmR1CQ.o(.text+0x1b97): undefined reference to `gvect_'
/tmp/ccEmR1CQ.o: In function `ptplot_':
/tmp/ccEmR1CQ.o(.text+0x1ce6): undefined reference to `bdimx_'
/tmp/ccEmR1CQ.o(.text+0x1cf9): undefined reference to `box2mm_'
/tmp/ccEmR1CQ.o(.text+0x1d43): undefined reference to `bpoint_'
/tmp/ccEmR1CQ.o: In function `frame_':
/tmp/ccEmR1CQ.o(.text+0x1d57): undefined reference to `gempty_'
/tmp/ccEmR1CQ.o(.text+0x1d66): undefined reference to `gdiagc_'
/tmp/ccEmR1CQ.o(.text+0x1d78): undefined reference to `gdiagc_'
/tmp/ccEmR1CQ.o(.text+0x1d80): undefined reference to `gclear_'
/tmp/ccEmR1CQ.o: In function `vector_':
/tmp/ccEmR1CQ.o(.text+0x224d): undefined reference to `gvect_'
collect2: ld returned 1 exit status

It seems to me the code compiles okay, but the linker fails - Is there a 
workaround for this?


Thanks,

Chris