Hi, I am trying to install Overture2.2 on an AMD 64 system using pgf77 v7.1-3, and I get the error listed below. Portland group support suggests using the flag -pgf77libs. Is there a way to specify this in calling configure? Thanks. RC /opt/pgi/linux86-64/7.1/lib/libpgftnrtl.a(async.o): In function `asy_wait': async.c:(.text+0x32): undefined reference to `aio_suspend' async.c:(.text+0x64): undefined reference to `aio_return' async.c:(.text+0x8d): undefined reference to `aio_error' /opt/pgi/linux86-64/7.1/lib/libpgftnrtl.a(async.o): In function `Fio_asy_read': async.c:(.text+0x2a0): undefined reference to `aio_read' /opt/pgi/linux86-64/7.1/lib/libpgftnrtl.a(async.o): In function `Fio_asy_write': async.c:(.text+0x352): undefined reference to `aio_write' collect2: ld returned 1 exit status make[1]: *** [plotStuff] Error 1