I get this message (during doc build, actually):
raco setup: error running: (lib math/scribblings/math.scrbl)
ffi-lib: couldn't open "libmpfr.so" (libmpfr.so: cannot open shared
object file: No such file or directory)
I have /usr/lib/libmpfr.so.1, which is symlinked to
/usr/lib/libmpfr.so.1.2.2. I expect that libmpfr.so (no version number)
is provided by the development package.
I changed math/private/bigfloat/mpfr.rkt to use the following lines instead:
(define libgmp (lazy (ffi-lib "libgmp" '("" "3") #:get-lib-dirs
get-lib-dirs)))
(define libmpfr (lazy (ffi-lib "libmpfr" '("" "1") #:get-lib-dirs
get-lib-dirs)))
(Running 32-bit Ubuntu 10.04.4)
When I run the test file with the changes, it works, and the last four
digits are "4888" as expected.
Looks like my work machine (64-bit Ubuntu 12.10) has libmpfr.so.4 and
libgmp.so.10. I haven't run the test program there yet.
Ryan
On 11/16/2012 01:59 PM, Neil Toronto wrote:
[...]
One thing I'm not sure of is whether the FFI to libmpfr works on all our
supported platforms. Could I have all the devs run the following program
after your next compile?
#lang racket
(require math/bigfloat)
(parameterize ([bf-precision 8192])
pi.bf)
Then reply with the last four digits printed. They should be "4888". If
the program doesn't run because Racket can't load libmpfr, it's an
opportunity to test the documentation. Please see if I've made the docs
for the `math/bigfloat' module clear enough to help you fix the problem.
Thanks!
Neil ⊥
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