diff -ur numpy-1.0.orig/numpy/distutils/fcompiler/gnu.py numpy-1.0/numpy/distutils/fcompiler/gnu.py
--- numpy-1.0.orig/numpy/distutils/fcompiler/gnu.py	2006-10-09 03:46:59.000000000 -0400
+++ numpy-1.0/numpy/distutils/fcompiler/gnu.py	2006-10-25 13:51:18.000000000 -0400
@@ -30,7 +30,7 @@
         'compiler_f77' : [fc_exe, "-g", "-Wall","-fno-second-underscore"],
         'compiler_f90' : None, # Use --fcompiler=gnu95 for f90 codes
         'compiler_fix' : None,
-        'linker_so'    : [fc_exe, "-g", "-Wall"],
+        'linker_so'    : [fc_exe,"-shared", "-g", "-Wall"],
         'archiver'     : ["ar", "-cr"],
         'ranlib'       : ["ranlib"],
         'linker_exe'   : [fc_exe, "-g", "-Wall"]
@@ -255,7 +255,7 @@
         'compiler_f77' : [fc_exe,"-Wall","-ffixed-form","-fno-second-underscore"],
         'compiler_f90' : [fc_exe,"-Wall","-fno-second-underscore"],
         'compiler_fix' : [fc_exe,"-Wall","-ffixed-form","-fno-second-underscore"],
-        'linker_so'    : [fc_exe,"-Wall"],
+        'linker_so'    : [fc_exe,"-shared", "-Wall"],
         'archiver'     : ["ar", "-cr"],
         'ranlib'       : ["ranlib"],
         'linker_exe'   : [fc_exe,"-Wall"]