Can't find libcurl or curl/curl.h (RuntimeError)
Ruby on-RailsRubyCurlGemCurbRuby on-Rails Problem Overview
I am trying to install curb 0.8.0 on a Windows computer but I can not seem to get anywhere. I have been trying every website 3 pages deep on my Google search. Please, anyone have an idea of how I can get this single thing installed. I have downloaded curl and extracted it to C:\curl. I have added it to my path and am running the command:
gem install curb -- --with-curl-lib=C:\curl\bin --with-curl-include=C:\curl\include
But it doesn't work. I keep getting the same error. Any suggestions?
Ruby on-Rails Solutions
Solution 1 - Ruby on-Rails
If you are on ubuntu:
sudo apt-get install libcurl3 libcurl3-gnutls libcurl4-openssl-dev
Solution 2 - Ruby on-Rails
If you are ubuntu 18.04/20.04.2 LTS:
sudo apt-get install libcurl4 libcurl4-openssl-dev
Solution 3 - Ruby on-Rails
The curb gem requires libcurl, something that is related to, but different from curl. It's the library that curl is built with. That missing file is part of the development version of cURL.
Solution 4 - Ruby on-Rails
For Amazon Linux (perhaps also centos/redhat/fedora) do this:
sudo yum install libcurl libcurl-devel
Solution 5 - Ruby on-Rails
If you are on alpine:
apk add --update curl-dev
Solution 6 - Ruby on-Rails
type this to get rid of curl/curl.h error
sudo apt-get install libcurl3 libcurl3-gnutls libcurl4-openssl-dev
after this you will get a freeTDS error if you haven't installed it previously
Try running
sudo apt-get install freetds-dev
and after this
gem install tiny_tds
Solution 7 - Ruby on-Rails
First, update your package lists by running
sudo apt-get update
then install the development version of libcurl3
sudo apt-get install libcurl3-dev
Solution 8 - Ruby on-Rails
Such header files are usually packaged in a xxx-dev package. In this case libcurl-dev.
Usually they also provide "virtual" packages that resolve to latest version of a package. In case there are multiple implementation available then it'll list and ask you to pick the one you want, else it'll go ahead and select the latest one.
vagrant@my_box $ sudo apt-get install libcurl-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package libcurl-dev is a virtual package provided by:
libcurl4-openssl-dev 7.22.0-3ubuntu4.17
libcurl4-nss-dev 7.22.0-3ubuntu4.17
libcurl4-gnutls-dev 7.22.0-3ubuntu4.17
You should explicitly select one to install.
E: Package 'libcurl-dev' has no installation candidate
vagrant@my_box $ # I pick gnu implementation version 4.
vagrant@my_box $ sudo apt-get install libcurl4-gnutls-dev
...
vagrant@my_box $
See all versions:
$ aptitude versions libcurl
Package libcurl-ocaml:
p 0.5.3-2build3 precise 500
Package libcurl-ocaml-dev:
p 0.5.3-2build3 precise 500
Package libcurl-ocaml-dev:i386:
p 0.5.3-2build3 precise 500
Package libcurl-ocaml:i386:
p 0.5.3-2build3 precise 500
Package libcurl3:
p 7.22.0-3ubuntu4 precise 500
i 7.22.0-3ubuntu4.15 100
p 7.22.0-3ubuntu4.17 precise-securi 500
......
Package libcurl3-gnutls:i386:
p 7.22.0-3ubuntu4 precise 500
p 7.22.0-3ubuntu4.17 precise-securi 500
......
Package libcurl4-gnutls-dev:
p 7.22.0-3ubuntu4 precise 500
i 7.22.0-3ubuntu4.17 precise-securi 500
Package libcurl4-gnutls-dev:i386:
p 7.22.0-3ubuntu4 precise 500
p 7.22.0-3ubuntu4.17 precise-securi 500
......
$ # see only curl4 related stuff
$ aptitude versions libcurl4
Package libcurl4-gnutls-dev:
p 7.22.0-3ubuntu4 precise 500
i 7.22.0-3ubuntu4.17 precise-securi 500
Package libcurl4-gnutls-dev:i386:
p 7.22.0-3ubuntu4 precise 500
p 7.22.0-3ubuntu4.17 precise-securi 500
Package libcurl4-nss-dev:
p 7.22.0-3ubuntu4 precise 500
p 7.22.0-3ubuntu4.17 precise-securi 500
Package libcurl4-nss-dev:i386:
p 7.22.0-3ubuntu4 precise 500
p 7.22.0-3ubuntu4.17 precise-securi 500
Package libcurl4-openssl-dev:
p 7.22.0-3ubuntu4 precise 500
p 7.22.0-3ubuntu4.17 precise-securi 500
Package libcurl4-openssl-dev:i386:
p 7.22.0-3ubuntu4 precise 500
p 7.22.0-3ubuntu4.17 precise-securi 500
$
$
If you don't name of dev lib you can do a blind search like (greps for virtual packages):
$ aptitude search curl | grep dev | grep ^v
v libcurl-dev -
v libcurl-dev:i386 -
v libcurl-ocaml-dev-g55y9 -
v libcurl-ocaml-dev-owsj4:i386 -
v libcurl-ssl-dev -
v libcurl-ssl-dev:i386 -
v libcurl3-dev -
v libcurl3-dev:i386 -
v libcurl3-gnutls-dev -
v libcurl3-gnutls-dev:i386 -
v libcurl3-nss-dev -
v libcurl3-nss-dev:i386 -
v libcurl3-openssl-dev -
v libcurl3-openssl-dev:i386 -
v libcurl4-dev -
v libcurl4-dev:i386 -
v libghc-curl-dev-1.3.7-134ce:i38 -
v libghc-curl-dev-1.3.7-26a38 -
v libghc-download-curl-dev-0.1.3. -
v libghc-download-curl-dev-0.1.3. -
v libghc-hxt-curl-dev-9.1.1-66e48 -
v libghc-hxt-curl-dev-9.1.1-66e48 -
$