encoding UTF8 does not match locale en_US; the chosen LC_CTYPE setting requires encoding LATIN1

While trying to install opennms :

/usr/share/opennms/bin/install -l /usr/local/lib -dis

I get the error:

ERROR: encoding UTF8 does not match locale en_US Detail: The chosen LC_CTYPE setting requires encoding LATIN1.

and I'm not sure how to proceed, as I've tried creating the DB several different ways (see below).

Full log:

==============================================================================
OpenNMS Installer
==============================================================================

Configures PostgreSQL tables, users, and other miscellaneous settings.

- searching for jicmp:
  - trying to load /usr/local/lib/libjicmp.so: NO
  - trying to load /usr/lib/jni/libjicmp.so: OK
- searching for jicmp6:
  - trying to load /usr/local/lib/libjicmp6.so: NO
  - trying to load /usr/lib/jni/libjicmp6.so: OK
- searching for jrrd:
  - trying to load /usr/local/lib/libjrrd.so: NO
  - trying to load /usr/lib/jni/libjrrd.so: NO
  - trying to load /usr/lib/jni/libjrrd.so: NO
  - trying to load /usr/lib/jvm/jdk1.6.0_34/jre/lib/amd64/server/libjrrd.so: NO
  - trying to load /usr/lib/jvm/jdk1.6.0_34/jre/lib/amd64/libjrrd.so: NO
  - trying to load /usr/lib/jvm/jdk1.6.0_34/jre/../lib/amd64/libjrrd.so: NO
  - trying to load /libjrrd.so: NO
  - trying to load /usr/share/opennms/lib/libjrrd.so: NO
  - trying to load /usr/share/opennms/lib/linux64/libjrrd.so: NO
  - trying to load /usr/java/packages/lib/amd64/libjrrd.so: NO
  - trying to load /usr/lib64/libjrrd.so: NO
  - trying to load /lib64/libjrrd.so: NO
  - trying to load /lib/libjrrd.so: NO
  - trying to load /usr/lib/libjrrd.so: NO
  - trying to load /usr/lib/jni/libjrrd.so: NO
  - trying to load /usr/lib/libjrrd.so: NO
  - trying to load /usr/local/lib/libjrrd.so: NO
  - trying to load /opt/NMSjicmp/lib/32/libjrrd.so: NO
  - trying to load /opt/NMSjicmp/lib/64/libjrrd.so: NO
  - trying to load /opt/NMSjicmp6/lib/32/l