We see no such failures for our builds (on El Capitan and now on Sierra). We
use these configure flags for all our builds on macOS:
./configure --prefix=/Users/jenkins/prefix/native --enable-maintainer-mode \ --enable-wks-tools --enable-g13 --enable-symcryptrun \ --enable-gpg2-is-gpg --with-libiconv-prefix=/Users/jenkins/pkg 'CFLAGS= -D_DARWIN_C_SOURCE=900000L -fPIC' \ 'CXXFLAGS= -D_DARWIN_C_SOURCE=900000L -fPIC -std=c++11'
--enable-maintainer-mode should not be needed, it is only used to
re-create Makefile when they have been added and to enable more
warning flags.