macOS 10.12 brew install openssl issue

Trying to install openssl on homebrew using:

brew install openssl

Is giving the following error during make:

clang  -I. -Iinclude -fPIC -arch x86_64 -O3 -Wall -DL_ENDIAN -DOPENSSL_PIC -DOPENSSL_CPUID_OBJ -DOPENSSL_IA32_SSE2 -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_MONT5 -DOPENSSL_BN_ASM_GF2m -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DKECCAK1600_ASM -DRC4_ASM -DMD5_ASM -DAESNI_ASM -DVPAES_ASM -DGHASH_ASM -DECP_NISTZ256_ASM -DX25519_ASM -DPOLY1305_ASM -DOPENSSLDIR="\"/usr/local/etc/[email protected]\"" -DENGINESDIR="\"/usr/local/Cellar/[email protected]/1.1.1l/lib/engines-1.1\"" -D_REENTRANT -DNDEBUG  -MMD -MF crypto/rand/randfile.d.tmp -MT crypto/rand/randfile.o -c -o crypto/rand/randfile.o crypto/rand/randfile.c
In file included from crypto/rand/rand_unix.c:38:
/usr/include/CommonCrypto/CommonRandom.h:35:9: error: unknown type name 'CCCryptorStatus'
typedef CCCryptorStatus CCRNGStatus;
crypto/rand/rand_unix.c:385:47: error: use of undeclared identifier 'kCCSuccess'
    if (CCRandomGenerateBytes(buf, buflen) == kCCSuccess)
2 errors generated.
make[1]: *** [crypto/rand/rand_unix.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [all] Error 2

Do not report this issue to Homebrew/brew or Homebrew/core!

Brew is trying to install openssl 1.1.1l:

==> Downloading
Already downloaded: /Users/user/Library/Caches/Homebrew/downloads/b6ccc5a2a602c2af3480bbcf1656bd9844595974ba60501871ac12504508e818--openssl-1.1.1l.tar.gz

I need this dependency to install many other applications/tools, e.g., wget or python - and would like to use homebrew to do this.

The brew version I am using is:

Homebrew 3.2.9
Homebrew/homebrew-core (git revision fa395c6627; last commit 2021-08-27)
Homebrew/homebrew-cask (git revision 606ed52390; last commit 2021-08-27)

macOS is: 10.12.6 (Sierra) and I am using a MacBook Pro (13-inch, Early 2011)

Is there any way I can get around this issue to install openssl? Or anyway I can install python specifying a different openssl to use as a dependency?

I was able to install openssl 1.0 using the following brew command:

brew install rbenv/tap/[email protected]

However, python continually tries to use openssl 1.1.1l which is failing with the above error.


  • I managed to resolve it by editing formula (brew edit openssl) and adding


    to args array in configure_args.

    As below:

      def configure_args
        args = %W[
          ##### add the line here ####
        on_linux do
          args += (ENV.cflags || "").split
          args += (ENV.cppflags || "").split
          args += (ENV.ldflags || "").split
          args << "enable-md2"