Red Hat Bugzilla – Bug 111209
/usr/include/net-snmp/utilities.h defines getopt() incorrectly
Last modified: 2015-03-04 20:13:10 EST
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4.1) Gecko/20031114 Description of problem: When compiling wap11gui (http://wap11gui.sourceforge.net), I run into the following error: g++ -DHAVE_CONFIG_H -I. -I. -I.. -I/usr/lib/qt-3.1/include -I/usr/X11R6/include -DQT_THREAD_SUPPORT -D_REENTRANT -DDATADIR=\"/usr/local/share/wap11gui\" -Wnon-virtual-dtor -Wno-long-long -Wbad-function-cast -Wundef -Wall -pedantic -W -Wpointer-arith -Wmissing-prototypes -Wwrite-strings -ansi -D_XOPEN_SOURCE=500 -D_BSD_SOURCE -Wcast-align -Wconversion -O2 -fno-exceptions -fno-check-new -fexceptions -DNET_SNMP=1 -c -o macauthimp.o `test -f macauthimp.cpp || echo './'`macauthimp.cpp cc1plus: warning: "-Wbad-function-cast" is valid for C/ObjC but not for C++ In file included from /usr/include/net-snmp/utilities.h:26, ~ from /usr/include/net-snmp/net-snmp-includes.h:64, ~ from wap11config.h:24, ~ from macauthimp.h:21, ~ from macauthimp.cpp:22: /usr/include/net-snmp/library/getopt.h:8: error: declaration of `int ~ getopt(int, char* const*, const char*)' throws different exceptions /usr/include/getopt.h:154: error: than previous declaration `int getopt(int, ~ char* const*, const char*) throw ()' make[1]: *** [macauthimp.o] Error 1 make[1]: Leaving directory `/home/ori/projects/wap11gui/wap11gui' make: *** [all-recursive] Error 1 The problem is that /usr/include/net-snmp/utilities.h defines getopt() as an extern, instead of including <getopt.h>, as it probably should. The proper getopt.h is included by unistd.h, which, in a QT app, is included somewhere inside the bowels of QT. This means that every QT app that tries to use net-snmp under Fedora won't compile. I can't think of any way an application could work around this. This appears to be a new problem - RH 9 and 8.0 didn't have this, and I haven't seen this problem on any other platform I tried compiling on (Mandrake, SuSe, FreeBSD and Mac OS X). Version-Release number of selected component (if applicable): net-snmp-devel 5.0.9 How reproducible: Always
Correction: /usr/include/net-snmp/utilites.h doesn't declare getopt() as an extern. Instead, it includes a net-snmp private getopt.h header, which in turn has the extern declaration. On my system, patching utilites.h to include the proper <getopt.h> instead of the private version solves my problem, and doesn't seem to have any other effects, but I haven't done a lot of testing. Is there a way to submit a patch for this? (pending more testing)
I reported this to the net-snmp team. This is the bug report, and the resolution: http://sourceforge.net/tracker/?func=detail&aid=854179&group_id=12694&atid=112694 Their fix was to apply the following patch: diff -u -r5.5 utilities.h --- include/net-snmp/utilities.h 17 Aug 2003 22:09:21 -0000 5.5 +++ include/net-snmp/utilities.h 8 Dec 2003 22:07:28 -0000 @@ -27,7 +27,11 @@ #include <net-snmp/library/snmp_api.h> #include <net-snmp/library/snmp_client.h> +#if HAVE_GETOPT_H +#include <getopt.h> +#else #include <net-snmp/library/getopt.h> +#endif #ifdef HAVE_NETINET_IN_H #include <netinet/in.h> /* for in_addr_t */ Would it be possible to apply this to the current Fedora net-snmp package?
Yep, will be included in net-snmp-5.1-3 and later. Read ya, Phil
Ok then - any chance of this appearing as an update to Fedora Core 1? A project I maintain won't compile on FC1 as a result of this problem.
Sure, shouldn't be a problem. I'll make a package for fc1 tomorrow. Read ya, Phil
Excellent!