> Alex wrote:
>> I compiled nss on FreeBSD platform, and wrote a program .
>> My program use function SECU_ReadDERFromFile, like this
>>
>> #include "secutil.h"
>> ......
>> rv = SECU_ReadDERFromFile(&certDER, inFile, PR_TRUE);
>> ......
>>
>>
>> This function is in libsectool.a
>>
>> #nm libsectool.a |grep SECU_Read
>> 00001290 T SECU_ReadDERFromFile
>>
>> when I compile my program, it can generate .o file. but can't make
>> executable file. error message like this:
>>
>> g++ -o certools ./certool/GetDNToDB.o
>> ./certool/pk12util.o -L. -L./lib -Wl,-rpath-link,./lib -lsectool -lssl3
>> -lsmime3
>> -lnss3 -lplc4 -lplds4 -lnspr4 -lpthread -lc -fpic
>> ./lib/libsoftokn3.so: warning: warning: mktemp() possibly used unsafely;
>> consider using mkstemp()
>> ./certool/GetDNToDB.o(.text+0xc9e): In function `GetCertFullDN(char*)':
>> : undefined reference to `SECU_ReadDERFromFile(SECItemStr*, PRFileDesc*,
>> int)'
>> gmake: *** [certool] Error 1
>>
>> I try other functions in libsectool.a which is defined in secutil.h. it
>> also can't been use. I feel so despondent.
>>
>> Why?? I have already include header file(secutil.h). Anyone can give me
>> some suggestions? Please help me.
>
> Your link command line looks correct. We link our
> command-line utilities with ./lib/libsectool.a instead
> of -L./lib -lsectool, but -L./lib -lsectool should work.
>
> Since you use g++ to link, I suspect that you also GetDNToDB.o
> is compiled from a C++ file. Try include secutil.h in an extern "C"
> block like this:
>
> extern "C" {
> #include "secutil.h"
> }
>
> Note that libsectool.a is for NSS internal use. So
> you are using it at your own risk.
>
> Wan-Teh
Thanks for your help. The problem has been solved by adding extern "C"
block. I'm very grateful. :-)
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