Failed to build OpenSSL on El Capitan

[zkirill]

When running cargo build I was getting this error.

failed to run custom build command for `openssl v0.7.6`
Process didn't exit successfully: `/Users/.../Developer/hello_world/target/debug/build/openssl-09576f2f9776fa80/build-script-build` (exit code: 101)
--- stdout
TARGET = Some("x86_64-apple-darwin")
OPT_LEVEL = Some("0")
PROFILE = Some("debug")
TARGET = Some("x86_64-apple-darwin")
debug=true opt-level=0
HOST = Some("x86_64-apple-darwin")
TARGET = Some("x86_64-apple-darwin")
TARGET = Some("x86_64-apple-darwin")
HOST = Some("x86_64-apple-darwin")
CC_x86_64-apple-darwin = None
CC_x86_64_apple_darwin = None
HOST_CC = None
CC = None
HOST = Some("x86_64-apple-darwin")
TARGET = Some("x86_64-apple-darwin")
HOST = Some("x86_64-apple-darwin")
CFLAGS_x86_64-apple-darwin = None
CFLAGS_x86_64_apple_darwin = None
HOST_CFLAGS = None
CFLAGS = None
running: "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-g" "-m64" "-fPIC" "-o" "/Users/.../Developer/hello_world/target/debug/build/openssl-09576f2f9776fa80/out/src/c_helpers.o" "-c" "src/c_helpers.c"
ExitStatus(ExitStatus(256))


command did not execute successfully, got: exit code: 1



--- stderr
src/c_helpers.c:1:10: fatal error: 'openssl/ssl.h' file not found
#include <openssl/ssl.h>
         ^
1 error generated.
thread '<main>' panicked at 'explicit panic', /Users/.../.cargo/registry/src/github.aaakk.us.kg-88ac128001ac3a9a/gcc-0.3.25/src/lib.rs:818

Fixed by the following:

$ brew uninstall --force openssl
$ brew install openssl
$ brew link --force openssl
$ cargo clean
$ cargo build

Fix from http://stackoverflow.com/questions/30818391/gem-eventmachine-fatal-error-openssl-ssl-h-file-not-found#comment55942148_33956405

Hope that this saves someone else some time.

[geyang]

Hi, I am running into the same problem. The brew link --force solution does not work with the newest home-brew anymore.

There is an issue under rust-openssl. We might be able to update this package once that is updated.

[geyang]

The temporary solution is to source the following environment parameters:

export OPENSSL_INCLUDE_DIR=/usr/local/opt/openssl/include
export DEP_OPENSSL_INCLUDE=/usr/local/opt/openssl/include

[ax330d]

Maybe there is a way to disable openssl? My build is still failing with solutions mentioned before:

<bitflags macros>:89:15: 90:32 error: use of unstable library feature 'op_assign_traits': recently added (see issue #28235)
<bitflags macros>:89  # [ inline ] fn bitor_assign ( & mut self , other : $ BitFlags ) {
<bitflags macros>:90 self . bits |= other . bits ; } } impl $ crate:: __core:: ops:: BitXor for $
<bitflags macros>:8:24: 10:63 note: in this expansion of bitflags! (defined in <bitflags macros>)
<bitflags macros>:134:1: 136:63 note: in this expansion of bitflags! (defined in <bitflags macros>)
/Users/user/.cargo/registry/src/github.aaakk.us.kg-88ac128001ac3a9a/openssl-0.7.14/src/ssl/mod.rs:71:1: 119:2 note: in this expansion of bitflags! (defined in <bitflags macros>)

$ rustc -V
rustc 1.7.0 (a5d1e7a59 2016-02-29)

[illegalprime]

Hi all,
Sorry for the issues. This seems to be an openssl issue, rather than an issue with this crate. See here: sfackler/rust-openssl#255. From reading it I would either manually link the header to /usr/include or whatever the path is on OSX (I'm on a Linux box). Or use this, which seemed to help: DEP_OPENSSL_INCLUDE=$(brew --prefix openssl)/include cargo build.

@ax330d brings up a good point in that it might be nice to be able to disable openssl, we could work on this feature if it alleviates this issue a bit.

[illegalprime]

closing this, if you are having trouble because openssl is too old, follow #80 for progress on that.