I'm trying to compile a C program but I get the error 'RTLD_NEXT' undeclared. I think this is supposed to be defined in dlfcn.h which the c program includes, but when I looked inside dlfcn.h there is no RTLD_NEXT.
How do I fix this?
+1; changed code formatting from quotes to backticks
Christoph
2009-11-22 01:44:37
It's already there in the program source.
Phenom
2009-11-22 01:45:44
Should be `__GNU_SOURCE`
Michael Mior
2010-06-28 18:06:37
+2
A:
The issue here is that RTLD_NEXT is not defined by the posix standard . So the GNU people don't enable it unless you #define _GNU_SOURCE or -D_GNU_SOURCE.
Other relevant pieces of POSIX are dlfcn.h and dlsym.h. Interestingly, the later mentions RTLD_NEXT. Apparently, the GNU people are a bit confused about what is an extension and what is not.
bmargulies
2009-11-22 01:46:05
better link to http://www.opengroup.org/onlinepubs/009695399/basedefs/dlfcn.h.html and http://www.opengroup.org/onlinepubs/009695399/functions/dlsym.html#tag_03_112_07
Christoph
2009-11-22 01:56:24