Cannot compile with clang on macosx.

[cofyc]

https://trac.macports.org/ticket/37738 这是 macport 里的 ticket。

output of make CC=clang:

make  all-am
clang -DHAVE_CONFIG_H -I.   -I/usr/local/BerkeleyDB.4.7/include -I/opt/local/include   -I/opt/local/include/db47 -MT memcacheq.o -MD -MP -MF .deps/memcacheq.Tpo -c -o memcacheq.o memcacheq.c
memcacheq.c:2222:15: warning: implicit declaration of function 'daemonize' is invalid in C99
      [-Wimplicit-function-declaration]
        res = daemonize(maxcore, settings.verbose);
              ^
memcacheq.c:2265:5: warning: expression result unused [-Wunused-value]
    thread_init(settings.num_threads, main_base);
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./memcacheq.h:318:39: note: expanded from macro 'thread_init'
# define thread_init(x,y)             0
                                      ^
2 warnings generated.
mv -f .deps/memcacheq.Tpo .deps/memcacheq.Po
clang -DHAVE_CONFIG_H -I.   -I/usr/local/BerkeleyDB.4.7/include -I/opt/local/include   -I/opt/local/include/db47 -MT item.o -MD -MP -MF .deps/item.Tpo -c -o item.o item.c
mv -f .deps/item.Tpo .deps/item.Po
clang -DHAVE_CONFIG_H -I.   -I/usr/local/BerkeleyDB.4.7/include -I/opt/local/include   -I/opt/local/include/db47 -MT thread.o -MD -MP -MF .deps/thread.Tpo -c -o thread.o thread.c
mv -f .deps/thread.Tpo .deps/thread.Po
clang -DHAVE_CONFIG_H -I.   -I/usr/local/BerkeleyDB.4.7/include -I/opt/local/include   -I/opt/local/include/db47 -MT bdb.o -MD -MP -MF .deps/bdb.Tpo -c -o bdb.o bdb.c
mv -f .deps/bdb.Tpo .deps/bdb.Po
clang -DHAVE_CONFIG_H -I.   -I/usr/local/BerkeleyDB.4.7/include -I/opt/local/include   -I/opt/local/include/db47 -MT hashtable.o -MD -MP -MF .deps/hashtable.Tpo -c -o hashtable.o hashtable.c
hashtable.c:276:1: error: redefinition of a 'extern inline' function 'hashtable_iterator_key' is not
      supported in C99 mode
hashtable_iterator_key(struct hashtable_itr *i)
^
./hashtable.h:202:1: note: previous definition is here
hashtable_iterator_key(struct hashtable_itr *i)
^
hashtable.c:280:1: error: redefinition of a 'extern inline' function 'hashtable_iterator_value' is
      not supported in C99 mode
hashtable_iterator_value(struct hashtable_itr *i)
^
./hashtable.h:211:1: note: previous definition is here
hashtable_iterator_value(struct hashtable_itr *i)
^
2 errors generated.
make[1]: *** [hashtable.o] Error 1
make: *** [all] Error 2

[wake-up-neo]

the same.