asked 4 years ago viewed 10632 times active 4 years ago Get the weekly newsletter! CC = g++ CFLAGS = -g -Wall hw1.exe : BaseballPlayer.o Pitcher.o Hitter.o PlayerDatabase.o $(CC) $(CFLAGS) -o hw1.exe BaseballPlayer.o Pitcher.o Hitter.o PlayerDatabase.o BaseballPlayer.o : BaseballPlayer.h BaseballPlayer.cpp $(CC) $(CFLAGS) -c BaseballPlayer.cpp Pitcher.o : Using DC in transformers? I tried a few things and can't seem to quite get it. weblink
How strange is it (as an undergrad) to email a professor from another institution about possibly working in their lab? My advisor refuses to write me a recommendation for my PhD application unless I apply to his lab The Finslerian version of the Nash embedding theorem Output a googol copies of more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Why are only passwords hashed? http://stackoverflow.com/questions/11225118/makefile-error-undefined-reference-to-main
How to create a torus with divided cuts that correspond to the direction of the torus Do pulled hair from the root grow back? How do really talented people in academia think about people who are less capable than them? none needed checking for style of include used by make... Are assignments in the condition part of conditionals a bad practice?
Every polynomial with real coefficients is the sum of cubes of three polynomials Development of retrosynthesis plan What are the German equivalents of “First World War”, “World War I”, and “WWI”? My advisor refuses to write me a recommendation for my PhD application unless I apply to his lab Enable Wireless on Fresh Debian Build more hot questions question feed lang-cpp about asked 5 years ago viewed 10401 times active 5 years ago Get the weekly newsletter! Makefile In C Is it dangerous to use default router admin passwords if only trusted users are allowed on the network?
Dealing with a nasty recruiter Why do the Sparkfun and Adafruit Eagle libraries use smaller footprints than the manufacturer's recommended land pattern? Why is the FBI making such a big deal out Hillary Clinton's private email server? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed I went back to compile src/tacho.c which uses the function analogRead and that compiled fine every time I tried (the preprocessor didn't see the need to complain about my include).
yes checking for gcc option to accept ISO C89... C++ Undefined Reference To In the above case, the main function is not defined in db.cpp and hence although compilation succeeds, the linker throws an error as it cannot find the main function. It's the linking that causing problems, I suppose. yes checking whether gcc accepts -g...
In my case my final linking routine ended up looking something like: avr-g++ lib/core.a \ obj/bot_life.o \ obj/bot_port.o \ obj/bot_serial.o \ obj/bot_time.o \ obj/bot_tacho.o \ obj/bot_main.o \ -o bin/bot.elf \ -L. http://stackoverflow.com/questions/23047103/makefile-undefined-reference-error asked 1 year ago viewed 3336 times active 1 year ago Related 11PIC18F4550 C-compiler that's open-source & cross-platform?4What PIC24 C compilers are out there, and what is your opinion or review Makefile Undefined Reference To Function more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed In Function _start Undefined Reference To Main How to draw a clock-diagram?
Output a googol copies of a string If possible, how to include cut marks in PDF? (using watermark?) How do really talented people in academia think about people who are less have a peek at these guys Are they any different of the commands you would type to compile it manually? –rodrigo Nov 25 '11 at 20:26 1 Improve the question title so that it describes the Player claims their wizard character knows everything (from books). What would have happened to the world if the sepoy mutiny of 1857 had suceeded? C Undefined Reference To Function
from time with ATMega, bounce1.o: bounce1.c ../../drivers/avr/pio.h ../../drivers/avr/system.h ../../utils/pacer.h $(CC) -c $(CFLAGS) $< -o [email protected] Is there any examples I can follow to configure my Makefile to build FreeRTOS. –matben243 Jan Join them; it only takes a minute: Sign up makefile error: undefined reference to main up vote 7 down vote favorite 1 I am trying to compile my piece of code making new symbol from two symbols How to apply for UK visit visa after four refusal Given a limit with notation f, how would you solve? check over here I believe you need OBJS+= lines for these. –caveman Jan 11 '15 at 11:17 add a comment| 1 Answer 1 active oldest votes up vote 2 down vote As well as
share|improve this answer edited Jun 27 '12 at 11:46 unkulunkulu 6,77521842 answered Jun 27 '12 at 11:30 rajatkhanduja 598520 That is okay. C++ Makefile Also, I copypasted the 'g++ ...' command and ran it manually and now its giving me a 'mutliple definition error' –user2308896 Apr 13 '14 at 19:25 @userXXX modify your This is due to the way the linker handles the objects.
What is the output of 'make clean; make' Undefined reference errors come from the linker (ld). Tic Tac Toe - C++14 Modify functions in R using body, formals and environment methods Why cast an A-lister for Groot? Encode the alphabet cipher What are the large round dark "holes" in this NASA Hubble image of the Crab Nebula? Makefile Syntax Look at this example: gcc -o test someobject.o library.a The linker will: look up all undefined references of someobject.o and store them then it opens library.a and resolves the undefined references
In my makefile I compile all of my source files without any problems. For example, passing -DTHREAD_SAFE to the compiler might be required on some platforms. If it's not, use "make -n" to find out what it is trying to do. –David Gelhar Nov 9 '10 at 5:52 > It's not immediately obvious why that this content BTW, it's not the makefile that "gives the error", it's the compilation, specifically the linker.
You are referencing the .h files fine, but FreeRTOS also consists of many .c files. What was that alien in Doctor Who that nobody saw? So, what we need is a little more information: 1. Then it tries and compiles someobject.o and the undefined references are never satisfied EDIT: This is a well-known caveat of GCC, a more detailed stack-overflow explanation can be seen here, and
Not the answer you're looking for? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Now I think there is something wrong with my Makefile or something. Last edited on Feb 25, 2010 at 3:04pm UTC Topic archived.