Build failure

[ranjanan]

I got a build failure on both Mac:

INFO: Building Crypto
gcc -Wno-deprecated-declarations -std=c99 -shared -fPIC digest.c ecdsa.c -o libcryptojl.dylib -lcrypto
ecdsa.c:4:10: fatal error: 'openssl/ec.h' file not found
#include <openssl/ec.h>
         ^
1 error generated.
make: *** [shared] Error 1

and Linux:

INFO: Building Crypto
gcc -Wno-deprecated-declarations -std=c99 -shared -fPIC digest.c ecdsa.c -o libcryptojl.so -lcrypto                                                                 
ecdsa.c:4:24: fatal error: openssl/ec.h: No such file or directory                                                                                                  
 #include <openssl/ec.h>                                                                                                                                            
                        ^                                                                                                                                           
compilation terminated.                                                                                                                                             
make: *** [shared] Error 1                                          

[tanmaykm]

@ranjanan looks like you need openssl-dev (or equivalent) installed

[ranjanan]

Oh, I see. According to this, on Mac OSX versions El Capitan and above, openssl-dev is not provided in Homebrew because of security issues. I guess it's possible in Linux to download the development headers you have root access.

[iramiller]

You can fix this on macOS (tested on 10.12) by installing openssl with brew then symlinking the header files over into usr local include.

brew install openssl
cd /usr/local/include/
ln -s ../opt/openssl/include/openssl/ .