Eclipse Error Undefined Reference To Main
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Eclipse Undefined Reference To Function
Useful Links Distrowatch Bugs: Ubuntu PPAs: Ubuntu Web Upd8: Ubuntu OMG! Ubuntu Ubuntu Insights Planet Ubuntu Activity Page Please eclipse undefined reference to pthread_create' read before SSO login Advanced Search Forum The Ubuntu Forum Community Ubuntu Specialised Support Development & Programming Programming Talk undefined reference to `main' in eclipse Having an Issue With Posting ? Do undefined reference to eclipse cdt you want to help us debug the posting issues ? < is the place to report it, thanks ! Results 1 to 7 of 7 Thread: undefined reference to `main' in eclipse Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode June 28th, 2006 #1 jinxjinx View Profile View Forum Posts Private Message
Function _start Error Undefined Reference To Main
Gee! These Aren't Roasted! Join Date Mar 2006 Beans 179 undefined reference to `main' in eclipse im using the c++ plug in for eclipse and im tyring to compile and run my hello world program and i get this: **** Full rebuild of configuration Debug for project test **** make -k clean all rm -rf ./testmain.d ./testmain.o test Building file: ../testmain.cpp Invoking: GCC C++ Compiler gcc -O0 -g3 -Wall -c -fmessage-length=0 -otestmain.o ../testmain.cpp Finished building: ../testmain.cpp Building target: test Invoking: GCC C++ Linker gcc -otest ./testmain.o /usr/lib/gcc/i486-linux-gnu/4.0.3/../../../../lib/crt1.o: In function `_start':../sysdeps/i386/elf/start.S:115: undefined reference to `main' collect2: ld returned 1 exit status make: *** [test] Error 1 make: Target `all' not remade because of errors. Build complete for project test my hello world program is here: #include
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Undefined Reference To Main In Function _start
community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up C Linking Error: undefined reference to 'main' up vote 11 down vote favorite I have https://ubuntuforums.org/showthread.php?t=205052 read the other answers on this topic, and unfortunately they have not helped me. I am attempting to link several c programs together, and I am getting an error in response: $ gcc -o runexp.o scd.o data_proc.o -lm -fopenmp /usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/crt1.o: In function `_start': (.text+0x20): undefined reference to `main' collect2: ld returned 1 exit status make: * [runexp] Error 1 I have exactly one main function and it is in runexp. The http://stackoverflow.com/questions/15905119/c-linking-error-undefined-reference-to-main form is int main(void) { ...; return 0; } Any thoughts on why I might get this error? Thanks! c linker share|improve this question edited Apr 9 '13 at 14:53 unwind 254k38330460 asked Apr 9 '13 at 14:47 Nicole 3402514 is this function at global scope? –Ivaylo Strandjev Apr 9 '13 at 14:48 4 your GCC command doesn't include runexp.c, it OUTPUTS to runexp.o - sure you're including the source file with the main method ? –Morten Jensen Apr 9 '13 at 14:49 add a comment| 3 Answers 3 active oldest votes up vote 10 down vote accepted You should provide output file name after -o option. In your case runexp.o is treated as output file name, not input object file and thus your main function is undefined. share|improve this answer answered Apr 9 '13 at 14:51 Romeo 3,0831022 Thank you so much! I completely did not notice. Woops. –Nicole Apr 9 '13 at 15:05 Or just remove the -o option and use the conventional ./a.out, which is a beautiful name ;) –Tomasz Gandor Aug 5 '14 at 22:42 add a comment| Did you find this question interesting? Try our newsletter Sign up for our newsletter and get our top new questions deliver
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of http://stackoverflow.com/questions/14620435/c-error-undefined-reference-to-main this site About Us Learn more about Stack Overflow the company Business Learn https://www.chiefdelphi.com/forums/showthread.php?t=133466 more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up undefined reference C++ Error: undefined reference to `main' up vote 5 down vote favorite 2 I'm working on a simple class List, but when compiling the header and cpp file, I get the error: undefined reference to `main' What am I doing wrong, and how could I fix this? Here is the list.h file that has simple headers: list.h #ifndef LIST_H #define LIST_H #include Name Remember Me? Password CD-Media CD-Spy portal register members calendar new posts search FAQ rules Search Forums Show Threads Show Posts Advanced Search New Activity Since Last Visit All Forums Subscribed Forums New Activity in Past 24 Hours All Forums Subscribed Forums Go to Page... View First Unread Thread Tools Rate Thread Display Modes #1 01-24-2015, 04:55 PM playerzero Registered User FRC #0167 Join Date: Jan 2014 Location: Iowa Posts: 2 Eclipse C++ undefined reference to main Hi, My team (Team 167) is having a rather cryptic issue when attempting to compile our C++ program in Eclipse. The build console shows this: 16:51:03 **** Incremental Build of configuration Debug for project icrobotics-2015 **** Info: Internal Builder is used for build arm-frc-linux-gnueabi-g++ "-LC:\\Users\\Kazimier/wpilib/cpp/current/lib" -Wl,-rpath,/opt/GenlCam_v2_3/bin/Linux_armv7-a -o FRCUserProgram "src\\Team167Lib\\Vector3.o" "src\\Team167Lib\\SwerveDrive.o" "src\\Team167Lib\\SimpleJoystick.o" "src\\Team167Lib\\PneumaticPiston.o" "src\\Robot.o" "src\\ElevatorArms.o" "src\\Autonomous.o" -lwpi c:/frc/bin/../lib/gcc/arm-frc-linux-gnueabi/4.9.1/../../../../arm-frc-linux-gnueabi/bin/ld.exe: warning: libstdc++.so.6, needed by C:\Users\Kazimier/wpilib/cpp/current/lib\libFRC_NetworkCommunication.so.1.5.0, not found (try using -rpath or -rpath-link) c:/frc/bin/../../frc/usr/lib/crt1.o: In function `_start': /builds/perforce/ThirdPartyExports/NIOpenEmbedded/trunk/2.0/objects/targettools/linuxU/armv7-a/gcc-4.7-oe/release/build/tmp-eglibc/work/armv7a-vfp-neon-nilrt-linux-gnueabi/eglibc/2.17-r4/eglibc-2.17/libc/csu/../ports/sysdeps/arm/start.S:119: undefined reference to `main' collect2.exe: error: ld returned 1 exit status 16:51:06 Build Finished (took 2s.665ms) The important part (I think) is: c:/frc/bin/../../frc/usr/lib/crt1.o: In function `_start': /builds/perforce/ThirdPartyExports/NIOpenEmbedded/t