Anyone got a clue? I read a suggestion in another thread to modify config.status to include -lm, but it was not clear where to do that. Not the answer you're looking for? On my system, running the command on libm.a gives me output like the following. check over here
So -lexternal -Wl,--no-as-needed also wouldn't work. c gcc ld shared-libraries share|improve this question edited Jul 7 '12 at 12:11 octopusgrabbus 5,59772982 asked Nov 15 '11 at 17:26 Warren 81311120 1 Does gcc -L. -o program program.c I have installed gcc on a NSLU2. What am I doing wrong here?
The full step that it fails on with error looks like this: gcc -g -O2 -fopenmp -L/usr/lib -lcfitsio -lm -o lenstool_tab e_nfwg.o lenstool_tab.o midpnt.o nrutil.o polint.o qromo.o read_bin.o lenstool_tab.o: In function Response to answers there is no .a library file, just .h and .c in the library, so -l isn't appropriate my understanding of a library file is that it is just Join them; it only takes a minute: Sign up GCC error : undefined reference up vote 0 down vote favorite I am trying to compile some C code on a beagleboard
vBulletin ©2000 - 2016, Jelsoft Enterprises Ltd. test.c #include
What is the "Chairman Tree"? Undefined Reference To Error Dozens of earthworms came on my terrace and died there Hilbert-irreducible Banach space Given that ice is less dense than water, why doesn't it sit completely atop water (rather than slightly The definition is in the library itself. In your source file myapp.c you include the header, either directly or including another header that includes it.
Why cast an A-lister for Groot? http://stackoverflow.com/questions/143530/linker-woes-undefined-reference Tic Tac Toe - C++14 Why were Navajo code talkers used during WW2? Gcc Undefined Reference To Function test.c needs libcrypto, so it must come before -lcrypto. Undefined Reference To G++ Not the answer you're looking for?
There might be other more complex cases but from your question, I hope this would be enough to solve your problem. check my blog TNG Season 5 Episode 15 - Is the O'Brien newborn child possessed, and is this event ever revisited/resolved/debunked? How do we play with irregular attendance? Why was Susan treated so unkindly? Undefined Reference C++
For example: /* myapp.h ** Here I will include and define my stuff */ ... #include "mylib.h" ... Gcc Undefined Reference To Sqrt I suspect that it may be my compiler, maybe it is an over version? Get rid of the one in point.c –RageD Apr 5 '11 at 22:25 It is working now.
up vote 4 down vote favorite 1 My compilation process throws around errors like ..undefined reference to `BN_cmp' although I include
Browse other questions tagged c linker beagleboard math.h or ask your own question. The good point of this is that make automatically looks at the timestamps on the files, so it will only re-compile the files that have changed since the last time you Separate namespaces for functions and variables in POSIX shells Hilbert-irreducible Banach space "Full-time Employment is a Loophole in the Law to Make Wages Lower"? http://centralpedia.com/undefined-reference/undefined-reference-to-error-in-gcc.html So my thought is it might be the order in which I include the library files, but i'm not sure what is the correct way to order them.
I checked that these codes do contain #include
Browse other questions tagged c++ c gcc linker undefined-reference or ask your own question. As the 2nd library is not loaded properly (B.so); This alone costed me a month of productivity time, as we were migrating to 64-bit, to finally trace down this question as If it appears before the object files, the linker will ignore the library (it doesn't provide any symbols that it needs when it scans the library), then it'll read the object