I’m using the compilers group with compilers.choose cc f77 compilers.setup require_fortran
below is the env settings: :debug:configure Environment: :debug:configure CC='/usr/bin/clang' :debug:configure CC_PRINT_OPTIONS='YES' :debug:configure CC_PRINT_OPTIONS_FILE='/opt/local/var/macports/build/_Users_marbre_ports_math_taucs/taucs/work/.CC_PRINT_OPTIONS' :debug:configure CFLAGS='-pipe -Os -arch x86_64' :debug:configure CPATH='/opt/local/include' :debug:configure CPPFLAGS='-I/opt/local/include' :debug:configure CXX='/usr/bin/clang++' :debug:configure CXXFLAGS='-pipe -Os -stdlib=libc++ -arch x86_64' :debug:configure F77='/opt/local/bin/gfortran-mp-8' :debug:configure F77FLAGS='-m64' :debug:configure F90FLAGS='-pipe -Os -m64' :debug:configure FCFLAGS='-pipe -Os -m64' :debug:configure FFLAGS='-pipe -Os' :debug:configure INSTALL='/usr/bin/install -c' :debug:configure LDFLAGS='-L/opt/local/lib -Wl,-headerpad_max_install_names -arch x86_64' :debug:configure LIBRARY_PATH='/opt/local/lib' :debug:configure MACOSX_DEPLOYMENT_TARGET='10.12' :debug:configure OBJC='/usr/bin/clang' :debug:configure OBJCFLAGS='-pipe -Os -arch x86_64' :debug:configure OBJCXX='/usr/bin/clang++' :debug:configure OBJCXXFLAGS='-pipe -Os -stdlib=libc++ -arch x86_64' for this particular port, I need to override the build and pass F77 as the linker. I tried build.args-append CC=${configure.cc} \ F77=${configure.f77} build.target lib/${os.platform}${os.major}/libtaucs.a build { ui_info "Building libtaucs archives:" system -W ${worksrcpath} "${build.cmd} ${build.args} ${build.target}" } with 'FC= $(F77)’ in the Makefile, but that didn’t work. How should I pass this during build? Mark Brethen mark.bret...@gmail.com