while installing the open cobol i got following error

checking for gmp.h
checking for gmp_rend in -lgmp ...no
configure:error:gmp 3 or later is required

but i had already installed gmp 4.2.1

why i am getting this configuration error

i guess this is the error. you may have a new version of gmp but the gmp_rend function is no longer included. there are also other possible cause of this error. check your config.log. you may also consider posting the part of config.log most relevant to the error.

friend i tried gmp 3.1.1 and i got open cobol configured but after the compilation of hello.cob when i run hello binary i got the error as shared object file libcob.so.1 but there is a libcob.so.1 in user/local/lib
how can i resolve this problem

run ldconfig to refresh the cache.

do you still have newer version of gmp? if you still have the newer version of gmp. example if it's in /usr/lib, then what you must do is let the links, example libcob.so.1 redirect to the older gmp version in /usr/local/lib. then run ldconfig too.

if you want, you an also overwrite the previous install of gpm (overwrite the newer version). when installing the older version, append the argument '--prefix /dir' to ./configure. example, if the newer version is in /usr/lib/, then that must be './configure --prefix=/usr'

Edit: btw you need to make sure that '/usr/local/lib' is included in the file /etc/ld.so.conf before running ldconfig.

sorry, but i don't speak (write) english

para instalar opencobol necesitas lo siguiente:

gmp-4.1.2 o superior,

libltdlX-dev

en mi caso yo baje gmp-4.2.1.tar.gz e instale libltdl3-dev,

ahora para hacer el ./configure tienes que cambiar algo, nose que es, pero es por que gmp_rand no esta en la version 4.2.1 y con una sentencia se soluciona esto, con la siguiente:


./configure CFLAGS=-D__gmp_rand=__gmpn_random

ahi se construye el make exitosamente,
despues un make install y eso es todo

cualquier cosa a mi correo, pastorius3@gmail.com

I had the very same problem. Although I do not speak Spanish, I tried what derive[x] suggested (./configure CFLAGS=-D__gmp_rand=__gmpn_random) and it solved the problem for me.

Gracias, derive[x]!