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[Bug-xorriso] Link errors against libisoburn


From: Gabe Johnson
Subject: [Bug-xorriso] Link errors against libisoburn
Date: Tue, 15 Mar 2016 09:41:26 -0500

I am attempting to use libisoburn in my c++ project to export log files directly to cd/dvd on an embedded system.  For some reason I am having issues getting libisoburn to link against my application.  The library is being found when attempting to link but the symbols are undefined.  When I run readelf on my object file I get the following:
170: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND _Z18isoburn_initializePci

and when I run readelf on libisoburn I get the following entries:
1198: 00000000000235c0 802 FUNC GLOBAL DEFAULT 11 isoburn_initialize
924: 00000000000235c0 802 FUNC GLOBAL DEFAULT 11 isoburn_initialize

All of that looks correct but I still get undefined symbols error.

I created a simple main.c and for some reason it compiles fine with gcc but not with g++.  Below are the commands I used.
gcc -c main.c
gcc -o isoburntest main.o -lisofs -lburn -lisoburn

g++ -c main.c
g++ -o isoburntest main.o -lisofs -lburn -lisoburn

So the gcc compile works and the g++ compile fails.  The failure is:
main.o: In function `main':
main.c:(.text+0x2a): undefined reference to `isoburn_initialize(char*, int)'
collect2: error: ld returned 1 exit status


Is there something I am missing that would cause this library not to work with c++?

Thanks for any help,
Gabe

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