Here is the trace of the build.sh -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= checking for _FILE_OFFSET_BITS value needed for large files... no checking for ld used by GCC... /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld checking if the linker (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) is GNU ld... no checking for shared library run path origin... done checking for libssl... no checking for libgcrypt... no configure: error: cannot find OpenSSL or Libgcrypt, try --with-libssl-prefix=PATH or --with-libgcrypt-prefix=PATH make[2]: *** [thirdParty/libssh2/src/libssh2-stamp/libssh2-configure] Error 1 make[1]: *** [thirdParty/libssh2/CMakeFiles/libssh2.dir/all] Error 2 make: *** [all] Error 2 ~/Desktop/VM_TMP/pharo-vm/build> brew install OpenSSL Warning: openssl-1.0.2a-1 already installed ~/Desktop/VM_TMP/pharo-vm/build> brew install Libgcrypt ==> Downloading ftp://ftp.gnupg.org/gcrypt/libgcrypt/libgcrypt-1.6.3.tar.bz2 Already downloaded: /Library/Caches/Homebrew/libgcrypt-1.6.3.tar.bz2 ==> ./configure --disable-silent-rules --prefix=/usr/local/Cellar/libgcrypt/1.6. ==> make ==> make check Please report to http://bugs.gnupg.org ====================================== make[2]: *** [check-TESTS] Error 1 make[1]: *** [check-am] Error 2 make: *** [check-recursive] Error 1 READ THIS: https://git.io/brew-troubleshooting ~/Desktop/VM_TMP/pharo-vm/build> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= ~/Desktop/VM_TMP/pharo-vm/build> gcc --version Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include/c++/4.2.1 Apple LLVM version 7.0.2 (clang-700.1.81) Target: x86_64-apple-darwin15.2.0 Thread model: posix ~/Desktop/VM_TMP/pharo-vm/build> No idea whatâs going on⦠Help :-) Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.