Coin build failure with clang: the clang compiler does not support '-fno-for-scope'

[macports@…]

suggero:~ root# port install -s Coin
--->  Computing dependencies for Coin
--->  Fetching Coin
--->  Verifying checksum(s) for Coin
--->  Extracting Coin
--->  Configuring Coin
--->  Building Coin
Error: Target org.macports.build returned: shell command failed (see log for details)
Log for Coin is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_graphics_Coin/Coin/main.log
Error: Status 1 encountered during processing.
To report a bug, see <http://guide.macports.org/#project.tickets>
suggero:~ root# port clean Coin
--->  Cleaning Coin
suggero:~ root# port install -s Coin configure.compiler=llvm-gcc-4.2
--->  Computing dependencies for Coin
--->  Fetching Coin
--->  Verifying checksum(s) for Coin
--->  Extracting Coin
--->  Configuring Coin
--->  Building Coin
--->  Staging Coin into destroot
--->  Installing Coin @3.1.3_1
--->  Activating Coin @3.1.3_1
--->  Cleaning Coin
suggero:~ root#