waf: automap shared library names from .so to the right extension

this should help with MacOSX .dylib libraries

buildtools/wafsamba/samba_install.py

@@ -87,21 +87,21 @@ def install_library(self):
         install_name = self.samba_realname
         install_link = None
         if getattr(self, 'samba_type', None) == 'PYTHON':
-            inst_name    = '%s.so' % t.target
+            inst_name    = bld.make_libname(t.target, nolibprefix=True, python=True)
         else:
-            inst_name    = 'lib%s.so' % t.target
+            inst_name    = bld.make_libname(t.target)
     elif self.vnum:
         vnum_base    = self.vnum.split('.')[0]
-        install_name = 'lib%s.so.%s' % (self.target, self.vnum)
-        install_link = 'lib%s.so.%s' % (self.target, vnum_base)
-        inst_name    = 'lib%s.so' % t.target
+        install_name = bld.make_libname(self.target, version=self.vnum)
+        install_link = bld.make_libname(self.target, version=vnum_base)
+        inst_name    = bld.make_libname(t.target)
         if not self.is_bundled:
             # only generate the dev link for non-bundled libs
-            dev_link     = 'lib%s.so' % self.target
+            dev_link     = bld.make_libname(self.target)
     else:
-        install_name = 'lib%s.so' % self.target
+        install_name = bld.make_libname(self.target)
         install_link = None
-        inst_name    = 'lib%s.so' % t.target
+        inst_name    = bld.make_libname(t.target)
 
     if t.env.SONAME_ST and install_link:
         t.env.append_value('LINKFLAGS', t.env.SONAME_ST % install_link)
@@ -142,7 +142,7 @@ def symlink_lib(self):
 
     link_target = getattr(self, 'link_name', '')
     if link_target == '':
-        link_target = '%s/lib%s.so%s' % (LIB_PATH, self.target, soext)
+        link_target = '%s/%s' % (LIB_PATH, self.bld.make_libname(self.target, version=soext))
 
     link_target = os.path.join(blddir, link_target)
 

buildtools/wafsamba/samba_utils.py

@@ -527,3 +527,42 @@ def reconfigure(ctx):
     bld = samba_wildcard.fake_build_environment()
     Configure.autoconfig = True
     Scripting.check_configured(bld)
+
+
+def map_shlib_extension(ctx, name, python=False):
+    '''map a filename with a shared library extension of .so to the real shlib name'''
+    if name is None:
+        return None
+    (root1, ext1) = os.path.splitext(name)
+    if python:
+        (root2, ext2) = os.path.splitext(ctx.env.pyext_PATTERN)
+    else:
+        (root2, ext2) = os.path.splitext(ctx.env.shlib_PATTERN)
+    return root1+ext2
+Build.BuildContext.map_shlib_extension = map_shlib_extension
+
+
+def make_libname(ctx, name, nolibprefix=False, version=None, python=False):
+    """make a library filename
+         Options:
+              nolibprefix: don't include the lib prefix
+              version    : add a version number
+              python     : if we should use python module name conventions"""
+
+    if python:
+        libname = ctx.env.pyext_PATTERN % name
+    else:
+        libname = ctx.env.shlib_PATTERN % name
+    if nolibprefix and libname[0:3] == 'lib':
+        libname = libname[3:]
+    if version:
+        if version[0] == '.':
+            version = version[1:]
+        (root, ext) = os.path.splitext(libname)
+        if ext == ".dylib":
+            # special case - version goes before the prefix
+            libname = "%s.%s%s" % (root, version, ext)
+        else:
+            libname = "%s%s.%s" % (root, ext, version)
+    return libname
+Build.BuildContext.make_libname = make_libname

buildtools/wafsamba/wafsamba.py

@@ -164,6 +164,9 @@ def SAMBA_LIBRARY(bld, libname, source,
     deps = TO_LIST(deps)
     deps.append(obj_target)
 
+    realname = bld.map_shlib_extension(realname, python=(target_type=='PYTHON'))
+    link_name = bld.map_shlib_extension(link_name, python=(target_type=='PYTHON'))
+
     if target_type == 'PYTHON' or realname or not is_bundled:
         # Sanitize the library name
         bundled_name = libname.lower().replace('_', '-')
@@ -363,7 +366,7 @@ def SAMBA_MODULE(bld, modname, source,
             while realname.startswith(subsystem+"_"):
                 realname = realname[len(subsystem+"_"):]
 
-        realname = bld.env.shlib_PATTERN % realname
+        realname = bld.make_libname(realname)
         while realname.startswith("lib"):
             realname = realname[len("lib"):]
 

buildtools/wafsamba/wscript

@@ -280,7 +280,12 @@ def configure(conf):
     if 'HAVE_SYS_TIME_H' in conf.env and 'HAVE_TIME_H' in conf.env:
         conf.DEFINE('TIME_WITH_SYS_TIME', 1)
 
-    conf.define('SHLIBEXT', "so", quote=True)
+    # cope with different extensions for libraries
+    (root, ext) = os.path.splitext(conf.env.shlib_PATTERN)
+    if ext[0] == '.':
+        conf.define('SHLIBEXT', ext[1:], quote=True)
+    else:
+        conf.define('SHLIBEXT', "so", quote=True)
 
     conf.CHECK_CODE('long one = 1; return ((char *)(&one))[0]',
                     execute=True,