gem eventmachine fatal error: 'openssl/ssl.h' file not found

Question

Just installed El Capitan and can't install gem eventmachine 1.0.7. openssl is at 1.0.2a-1. Tried to use --with-ssl-dir but it seems ignored.

Reported it to their github repo as well.

Any suggestions are really appreciated. Thanks.

$ ls /usr/local/Cellar/openssl/1.0.2a-1/include/openssl/ssl.h
/usr/local/Cellar/openssl/1.0.2a-1/include/openssl/ssl.h

$ gem install eventmachine -v '1.0.7' -- --with-ssl-dir=/usr/local/Cellar/openssl/1.0.2a-1/include
/Users/pain/.rbenv/versions/2.1.2/bin/ruby -r ./siteconf20150612-56154-1hsjz2n.rb extconf.rb --with-ssl-dir=/usr/local/Cellar/openssl/1.0.2a-1/include
checking for rb_trap_immediate in ruby.h,rubysig.h... no
checking for rb_thread_blocking_region()... yes
checking for ruby/thread.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
checking for inotify_init() in sys/inotify.h... no
checking for __NR_inotify_init in sys/syscall.h... no
checking for writev() in sys/uio.h... yes
checking for rb_thread_fd_select()... yes
checking for rb_fdset_t in ruby/intern.h... yes
checking for rb_wait_for_single_fd()... yes
checking for rb_enable_interrupt()... no
checking for rb_time_new()... yes
checking for sys/event.h... yes
checking for sys/queue... yes
checking for clock_gettime()... no
checking for gethrtime()... no
creating Makefile

make "DESTDIR=" clean

make "DESTDIR="
compiling binder.cpp
In file included from binder.cpp:20:
./project.h:116:10: fatal error: 'openssl/ssl.h' file not found
#include <openssl/ssl.h>
         ^
1 error generated.
make: *** [binder.o] Error 1

make failed, exit code 2

firedev · Accepted Answer · 2015-10-15T01:06:19.333

520

$ gem install eventmachine -- --with-cppflags=-I/usr/local/opt/openssl/include                                                                                                             
Building native extensions with: '--with-cppflags=-I/usr/local/opt/openssl/include'
This could take a while...
Successfully installed eventmachine-1.0.8
1 gem installed

You can also set up bundler like this but I think that is superficial

bundle config build.eventmachine --with-cppflags=-I/usr/local/opt/openssl/include

edited Oct 15 '15 at 01:06

answered Jun 15 '15 at 01:35

firedev

19,222
18
58
91

2

For me, I had to install openssl first before this worked. e.g. `brew install openssl`. – Ryan Walls Oct 26 '15 at 17:52
1

If you have your gems set to a specific directory in your repo, i.e. `vendor/bundle` then you will want to run the `bundle config build.GEMNAME--with-cppflags=-I/usr/local/opt/openssl/include`. I had to run the same thing with the gem `puma` so I imagine this is happening for other gems as well. – Colto Oct 28 '15 at 16:11
4

see answer with: 'bundle config build.eventmachine --with-cppflags=-I$(brew --prefix openssl)/include' from lloeki. That worked for me. Not this one. – justingordon Nov 05 '15 at 01:29
2

This worked for me `gem install eventmachine -v 1.0.8 -- --with-cppflags=-I/usr/local/opt/openssl/include` on OSX El Capitan 10.11.5 – Jagdeep Singh Jul 27 '16 at 10:15
for me after install `brew install openssl` I have to do `brew link openssl --force` – Sr. Oshiro Sep 01 '16 at 14:18
`gem install eventmachine -- --with-cppflags=-I$(brew --prefix openssl)/include` – Marius Butuc Jan 12 '17 at 03:54

score 235 · Answer 2 · answered Jul 20 '15 at 12:31

235

When using bundler and homebrew:

$ bundle config build.eventmachine --with-cppflags=-I$(brew --prefix openssl)/include
$ bundle install

answered Jul 20 '15 at 12:31

Lloeki

5,983
2
25
30

1

For me, I had to install openssl first before this worked. e.g. `brew install openssl` – Ryan Walls Oct 26 '15 at 17:51
This version worked for me to install eventmachine 1.0.3 on top of ruby 2.1.2 – dtburgess Nov 17 '15 at 13:11
Fantastic! This is also the way to go for other gems (e.g. puma) that depend on openssl – morgler Mar 12 '17 at 20:06
I think this answer is better than the approved one, because since it uses `bundle install` to perform the actual gem installation, it guarantees you'll install the exact version specified in your bundle. The accepted answer will install the latest version, unless you include the `-v x.x.x` in the `gem install` command manually. – Ernesto Jun 03 '17 at 02:54

itsnikolay · Answer 3 · 2015-12-25T11:41:00.547

115

brew link --force openssl

Then:

gem install eventmachine

It also fixes:

gem install taks
bundle install
rake and rails tasks

P.S. Probably you'll need to remove and run brew install openssl again

The issue happends because Apple had removed openssl from OSX (in El Captain build)

edited Dec 25 '15 at 11:41

answered Nov 27 '15 at 11:29

itsnikolay

15,246
3
56
60

10

This was indeed the fix on El Capitan. – jhedstrom Dec 01 '15 at 18:37
For clarification, what is the order of brew remove/install/link – Abram Dec 04 '15 at 18:19
7

@Abram In case of `brew link --force openssl` had no effect. Then do `brew uninstall openssl`, `brew install openssl`, `brew link --force openssl` – itsnikolay Dec 04 '15 at 18:22
This is the answer on a Mac today (El Capitan, 2015-2016). EDIT: Just forcing the brew openssl. I didn't need to specify a version of EventMachine (I was installing Middleman). – Ryan Bosinger Dec 07 '15 at 10:28
1

Worked for me as well. Good call. – Kees Briggs Jan 25 '17 at 03:20

score 14 · Answer 4 · edited Mar 03 '21 at 13:23

14

gem pristine eventmachine -- --with-cppflags=-I/usr/local/opt/openssl/include

pristine removes the old gem and recompiles it.

The cpp flags option allows the compiler to find the openssl headers.

If you prefer to abstract away the cpp flags argument, you can do the following:

PKG_CONFIG_PATH="$(brew --prefix openssl)/lib/pkgconfig"

You can also add the version if you like:

gem pristine eventmachine -v '1.0.4' -- --with-cppflags=-I/usr/local/opt/openssl/include

edited Mar 03 '21 at 13:23

driftcatcher

1,981
4
26
44

answered Jan 14 '16 at 20:29

jLuc

306
3
6

1

why `pristine` instead of `install`? – Ricardo Freitas Sep 20 '16 at 11:41
5

`gem install eventmachine -- --with-cppflags=-I/usr/local/opt/openssl/include` worked for me. – Dylanthepiguy Jan 18 '17 at 03:23

score 9 · Answer 5 · edited Mar 01 '21 at 17:37

9

I was trying to install v 1.0.3 and this worked for me.

gem install eventmachine -v '1.0.3' -- --with-cppflags=-I/usr/local/opt/openssl/include

These discussions were very helpful: https://github.com/eventmachine/eventmachine/issues/602

This assumes the machine already has openssl installed via brew.

edited Mar 01 '21 at 17:37

driftcatcher

1,981
4
26
44

answered Jan 06 '17 at 00:58

Ana Isabel

831
1
11
19

2

You need a hypen before `I/usr/local/opt/openssl/include`. It's one character so stackoverflow doesn't let me edit it – MaicolBen Mar 07 '17 at 14:42
1

Fixed it @MaicolBen – blockloop May 03 '17 at 20:42

score 8 · Answer 6 · answered Dec 08 '15 at 19:12

If you're installing EventMachine as a dependency of another gem, be sure to specify the correct version when you manually install the gem:

gem install eventmachine -v 1.0.5 -- --with-cppflags=-I$(brew --prefix openssl)/include

Then you can install the gem that you were originally trying to install:

gem install mailcatcher

Giovanni Benussi · Answer 7 · 2017-07-26T21:56:53.100

7

This solved the problem for me:

PKG_CONFIG_PATH="$(brew --prefix openssl)/lib/pkgconfig" gem install eventmachine -v "1.0.8"

Source: https://github.com/sj26/mailcatcher/issues/254

edited Jul 26 '17 at 21:56

answered Mar 13 '17 at 16:16

Giovanni Benussi

1,817
1
20
28

Unecessarily complicated, why not just set the var: export PKG_CONFIG_PATH=$( brew --prefix openssl )/lib/pkgconfig # now you can install any packages, add to .bashrc, or what you use – Gerry Gleason Oct 11 '17 at 15:03

score 4 · Answer 8 · answered Dec 25 '15 at 15:11

One alternative is to add a bundler config entry for your whole user profile, like this:

cd ~
bundle config build.eventmachine --with-cppflags=-I$(brew --prefix openssl)/include

it'll create a .bundle/config file in your home directory, which is then used in all your projects when you run bundle install.

score 0 · Answer 9 · answered Jun 11 '18 at 19:09

This worked for me -

    gem install eventmachine -v '1.0.7' -- --debug --backtrace --with-cppflags=-I/usr/local/opt/openssl/include --with-ldflags=-L/usr/local/opt/openssl/lib
    Building native extensions with: '--debug --backtrace --with-cppflags=-I/usr/local/opt/openssl/include --with-ldflags=-L/usr/local/opt/openssl/lib'
    This could take a while...
    Successfully installed eventmachine-1.0.7
    Parsing documentation for eventmachine-1.0.7
    Installing ri documentation for eventmachine-1.0.7
    Done installing documentation for eventmachine after 9 seconds
    1 gem installed

NOTE:- Before I was able to successfully install this gem, I had to do a few things. These might apply to you, so listing them here -

1.) got off the corporate-VPN OR you might have to turn ON proxy settings

2.) PKG_CONFIG_PATH was set to -

echo $PKG_CONFIG_PATH
/usr/local/opt/openssl/lib/pkgconfig

3.) had to add the following to $PATH in bash_profile (in my case ~/.zshrc)

export PATH="/usr/local/opt/openssl/bin:$PATH"

4.) Also note, that contrary to some answers I got in this SO post, and also this thread on github-eventmachine, I was not able to install eventmachine

gem install eventmachine -v '1.0.7' -- --debug --backtrace --with-cppflags=-I/usr/local/include --with-ldflags=-L/usr/local/lib
Fetching: eventmachine-1.0.7.gem (100%)
Building native extensions with: '--debug --backtrace --with-cppflags=-I/usr/local/include --with-ldflags=-L/usr/local/lib'
This could take a while...
ERROR:  Error installing eventmachine:
    ERROR: Failed to build gem native extension.

It seems /usr/local/opt/openssl/include is the right location and not /usr/local/include when specifying the openssl location.

gem eventmachine fatal error: 'openssl/ssl.h' file not found

9 Answers9

Linked

Related