the --with-gmp=/usr/local fails (cannot find lib/libgmp.a), including --with-gmp=/usr/local/lib produces -L/usr/local/lib/lib in the makefile. I have made the same build on OS X and Cygwin and did not have this problem...
Dan -- Summary: configure produces strange gmp, mpfr lib directories. Product: gcc Version: 4.1.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: danp57 at optonline dot net GCC build triplet: " GCC host triplet: powerpc64-ibm-aix5.3.0.0 GCC target triplet: powerpc64-ibm-aix5.3.0.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29292