The problem is now U_FILE_ACCESS_ERROR (4) when calling ICU's u_init. ICU is built/installed with:
wget http://download.icu-project.org/files/icu4c/54.1/icu4c-54_1-src.tgz tar xzvf icu4c-54_1-src.tgz cd icu/source ./runConfigureICU MacOSX make -j4 sudo make install Adriano Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel