#elif (defined(__INTEL_COMPILER) || defined(__ECC)) && !defined(_MSC_VER)
/* ICC on *nix */
# define gmx_unused __attribute__ ((unused))
+#elif defined(__PGI)
+/* Portland group compilers */
+# define gmx_unused __attribute__ ((unused))
#elif defined _MSC_VER
/* MSVC */
# define gmx_unused /*@unused@*/