tn3399_openwrt/tools/mklibs/patches/009-uclibc_libgcc_link.patch

--- a/src/mklibs.py
+++ b/src/mklibs.py
@@ -560,6 +560,7 @@ while 1:
             extra_flags = []
             extra_pre_obj = []
             extra_post_obj = []
+            libgcc_link = "-lgcc"
 
             symbols.update(library_symbols_used[library])
 
@@ -575,6 +576,10 @@ while 1:
                 symbols.add(ProvidedSymbol('__uClibc_init', None, None, True))
                 symbols.add(ProvidedSymbol('__uClibc_fini', None, None, True))
                 extra_flags.append("-Wl,-init,__uClibc_init")
+                libgcc_link = "-lgcc_s_pic"
+
+            if soname in ("libm.so.0"):
+                libgcc_link = "-lgcc_s_pic"
 
             map_file = find_pic_map(library)
             if map_file:
@@ -590,7 +595,7 @@ while 1:
             cmd.append(pic_file)
             cmd.extend(extra_post_obj)
             cmd.extend(extra_flags)
-            cmd.append("-lgcc")
+            cmd.append(libgcc_link)
             cmd.extend(["-L%s" % a for a in [dest_path] + [sysroot + b for b in lib_path if sysroot == "" or b not in ("/" + libdir + "/", "/usr/" + libdir + "/")]])
             cmd.append(library_depends_gcc_libnames(so_file, soname))
             command(target + "gcc", *cmd)