I couldn't find any other solution to this, but when getting the library flags of pgf90 with -Mconcur or -Mipa (Runs pgipa) there is an empty -l in an ignore string pasted below. This messes up the FCLIBS later and makes the compiler complain because it lumps the next argument as the library name. Also, I have had libraries have the ending quote attached as in -lacml_mv'. /usr/local/pgi/linux86-64/6.0/bin/pgipa -v -finalo conftest -ignore '-Mextract -L -I -Mkeepasm -Mpreprocess -l -Minline' -nop ..... I was able to solve this by adding -l) ;; -l[a-zA-Z_\.-\+]*\') ;; to configure and more permanently the _AC_FC_LIBRARY_LDFLAGS function in fortran.m4 _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf