Installing g77 fortran compiler for xfoil!

flipwhy · 07-14-2006, 10:31 AM

hi...
i have downloaded the tar.gz file of g77 fortran compiler. can someone tell me how to install it?
the reason was to get xfoil working...so if someone can help me with that too, that would be great.
Thanks

lugoteehalt · 07-14-2006, 10:44 AM

If it's a .deb file (think this works for .rpm too) open it in the file manager mc go to it tap enter go inside to 'install' tap enter.

flipwhy · 07-14-2006, 10:55 AM

what does all that mean? I have arch linux.
need a lil bit more help with explaining what to do.

jstephens84 · 07-14-2006, 12:08 PM

Code:

tar -zxvf <package_name>.tar.gz
./configure
make 
make install

That should get it installed. you might want to check out all the options configure has.

flipwhy · 07-14-2006, 02:02 PM

actually i have gcc 4.1.1..gcc-fortran
but when i put it into the config.make file of Xfoil, it still doesnt work. ANyone know how to get xfoil to work?

flipwhy · 07-14-2006, 06:39 PM

i tried your method but it doesnt work and its probably because its arch. pacman doesnt have it so im kinda stuck. help - gr8tly appreciated!

lugoteehalt · 07-17-2006, 11:42 AM

Quote:

Originally Posted by jstephens84

Code:

tar -zxvf <package_name>.tar.gz
./configure
make 
make install

That should get it installed. you might want to check out all the options configure has.

Should think you have to go into the directory the thing's in before you do the above - the directory with 'configure' in it. what happens when you do the above?

What's the full name of the file?

flipwhy · 07-18-2006, 10:07 AM

sorry for the delay.
i gave up on trying to put g77 on...so for xfoil, i put gfortran for my FC. it sorta worked but i think i changed too many things so im gonna install it again and see what happens. Ill let you know if it did.
THanks for your help. Ill keep what you said in mind.

flipwhy · 08-03-2006, 12:03 PM

well...i left xfoil for along while..but then decided i needed it.
SO i got as far as make xfoil using gfortran.(added the flag -ff2c so it is compatible with f77 code)..this is when it says this:
../plotlib/libPltDP.a(ps_subs.o): In function `bitpat_':
ps_subs.f

.text+0x78): undefined reference to `rshift_'
ps_subs.f

.text+0xf9): undefined reference to `rshift_'
collect2: ld returned 1 exit status
make: *** [xfoil] Error 1

This is what the ps_sub.f file (the required portion) says:

c--- Shift the mask until the low order bit is 1 to start...
imask = mask
do n = 1, 16
ibitold = and(1,imask)
if(ibitold.NE.0) go to 5
nshft = n
imask = rshift(imask,1)
end do
c
5 nout = 0
if(nshft.GE.16) return
nbits = 0
c

anyone know how or what to do?i cant find anything on google.

seiyachan · 11-16-2006, 05:30 AM

I found this in the Makefile for plotlib:

### Uncomment for f77 compiler w/o AND() and RSHIFT/LSHIFT functions.
### This adds some functions to duplicate these using IAND and ISHFT
### which often appear in these offending fortran's libraries.
### The compilers that this has affected include:
### HPUX f77
### Absoft f77 on Linux
###
#OBJMISC = util-ops.o