I was able to do it. I had to build ICU statically first with --enable-static --enable-shared=no options.
During configuring postgres I had to use the right flags for ICU: /configure --prefix=/leoaaryan/postgres-10 ... --with-icu ICU_CFLAGS="-I/leoaaryan/postgres-10/include -DU_STATIC_IMPLEMENTATION" ICU_LIBS="-L/leoaaryan/postgres-10/lib -licui18n -licuuc -licudata -lstdc++" -- Sent from: http://www.postgresql-archive.org/PostgreSQL-hackers-f1928748.html
