add to_lib_name() to get library name from a path

1 files changed, 7 insertions, 3 deletions

diff --git a/lib/spack/llnl/util/filesystem.py b/lib/spack/llnl/util/filesystem.py
index e800c6717a..adb6b8034e 100644
--- a/lib/spack/llnl/util/filesystem.py
+++ b/lib/spack/llnl/util/filesystem.py
@@ -42,7 +42,7 @@ __all__ = ['set_install_permissions', 'install', 'install_tree',
            'FileFilter', 'change_sed_delimiter', 'is_exe', 'force_symlink',
            'set_executable', 'copy_mode', 'unset_executable_mode',
            'remove_dead_links', 'remove_linked_tree', 'find_library_path',
-           'fix_darwin_install_name', 'to_link_flags']
+           'fix_darwin_install_name', 'to_link_flags', 'to_lib_name']
 
 
 def filter_file(regex, repl, *filenames, **kwargs):
@@ -430,6 +430,11 @@ def fix_darwin_install_name(path):
                     subprocess.Popen(["install_name_tool", "-change", dep, loc, lib], stdout=subprocess.PIPE).communicate()[0]  # NOQA: ignore=E501
                     break
 
+def to_lib_name(library):
+    """Transforms a path to the library /path/to/lib<name>.xyz into <name>
+    """
+    # Assume libXYZ.suffix
+    return os.path.basename(library)[3:].split(".")[0]
 
 def to_link_flags(library):
     """Transforms a path to a <library> into linking flags -L<dir> -l<name>.
@@ -438,8 +443,7 @@ def to_link_flags(library):
       A string of linking flags.
     """
     dir  = os.path.dirname(library)
-    # Assume libXYZ.suffix
-    name = os.path.basename(library)[3:].split(".")[0]
+    name = to_lib_name(library)
     res = '-L%s -l%s' % (dir, name)
     return res