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Re: [Wireshark-dev] I want to use g_thread_init in dissector source file, but get a link error, Why?
From: Guy Harris <guy_at_nospam>Date: Wed Aug 24 2011 - 07:54:10 GMT
To: Developer support list for Wireshark <wireshark-dev@wireshark.org>
On Aug 24, 2011, at 12:11 AM, lookfar wrote:
> 正在创建库 libwireshark.lib 和对象 libwireshark.exp
> dissectors.lib(packet-ppp.obj) : error LNK2019: 无法解析的外部符号 _g_thread_ini
> t，该符号在函数 _proto_register_ppp 中被引用
> libwireshark.dll : fatal error LNK1120: 1 个无法解析的外部命令
> NMAKE : fatal error U1077: “"D:\Program Files\Microsoft Visual Studio 9.0\VC\BI
> N\link.EXE"”: 返回代码“0x460”
> Stop.
> NMAKE : fatal error U1077: “"D:\Program Files\Microsoft Visual Studio 9.0\VC\BI
> N\nmake.exe"”: 返回代码“0x2”
For those of us who don't read Chinese, Google Translate says that's
Creating library libwireshark.lib and objects libwireshark.exp
dissectors.lib (packet-ppp.obj): error LNK2019: unresolved external symbol _g_thread_init, the symbol is referenced in function _proto_register_ppp
libwireshark.dll: fatal error LNK1120: 1 unresolved externals
NMAKE: fatal error U1077: “"D:\Program Files\Microsoft Visual Studio 9.0\VC\BIN\link.EXE"”: return code "0x460"
Stop.
NMAKE: fatal error U1077: “"D:\Program Files\Microsoft Visual Studio 9.0\VC\BIN\nmake.exe"”: return code "0x2"
Stop.
(why "fatal error" is in English and "return code" isn't, well...).
> My version is wireshark-1.7.0-SVN-38520,I have changed the dissector nmake file to add line like:
>
> CFLAGS= $(WARNINGS_ARE_ERRORS) $(STANDARD_CFLAGS) \
> /I. /I.. /I../.. $(GLIB_CFLAGS) \
> $(GTHREAD_LIBS) \
> # `pkg-config --cflags --libs glib-2.0 gthread-2.0` \
> $(ZLIB_CFLAGS) \
> $(PCRE_CFLAGS) $(GNUTLS_CFLAGS) $(NETTLE_CFLAGS) \
> $(KFW_CFLAGS) $(AIRPCAP_CFLAGS) $(GEOIP_CFLAGS) \
> /I$(PCAP_DIR)\include
What happens if you *don't* make that change, but, instead, change epan\Makefile.nmake to do something such as
libwireshark_LIBS = \
$(GTHREAD_LIBS) \
$(GLIB_LIBS) \
$(C_ARES_LIBS) \
$(ADNS_LIBS) \
$(KFW_LIBS) \
$(NETTLE_LIBS) \
$(ZLIB_LIBS) \
$(GNUTLS_LIBS) \
$(LUA_LIBS) \
$(PYTHON_LIBS) \
$(SMI_LIBS) \
$(GEOIP_LIBS) \
..\wsutil\libwsutil.lib \
..\wiretap\wiretap-$(WTAP_VERSION).lib \
crc\crc.lib \
crypt\airpdcap.lib \
ftypes\ftypes.lib \
dfilter\dfilter.lib \
$(WSLUA_LIB) \
$(WSPYTHON_LIB) \
dissectors\dissectors.lib
so that libwireshark is linked with $(GTHREAD_LIBS)?
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