undefined reference to `boost::system::generic_category()' [duplicate] - c++

This question already has an answer here:
g++ undefined reference to `boost::system::system_category()'
(1 answer)
Closed 9 years ago.
I have a problem with my code.
I have such an info trying to build:
g++ -L /usr/local/boost_1_55_0 -Wall -pedantic -Iinc -c -lboost_system -pthread -lboost_thread -o obj/glo.o src/glo.cpp
g++ -L /usr/local/boost_1_55_0 -Wall -pedantic -Iinc -c -lboost_system -pthread -lboost_thread -o obj/serial.o src/serial.cpp
g++ -I /usr/local/boost_1_55_0 -Wall -lboost_system -pthread -o dwa obj/glo.o obj/serial.o
obj/glo.o: In function `__static_initialization_and_destruction_0(int, int)':
glo.cpp:(.text+0x15a): undefined reference to `boost::system::generic_category()'
glo.cpp:(.text+0x166): undefined reference to `boost::system::generic_category()'
glo.cpp:(.text+0x172): undefined reference to `boost::system::system_category()'
obj/glo.o: In function `boost::system::error_code::error_code()':
glo.cpp:(.text._ZN5boost6system10error_codeC2Ev[_ZN5boost6system10error_codeC5Ev]+0x17): undefined reference to `boost::system::system_category()'
and similar.
As You can see I have given
-lboost_system -pthread -lboost_thread and compiled system boost in /usr/local/boost_1_55_0
I have no idea whats happening.

Absolutely, g++ cannot find library boost_system. It should locate in /usr/local/boost_1_55_0/lib. You can add option "-v" to check the detailed error messages.
g++ -v -L/usr/local/boost_1_55_0/lib -Wall -lboost_system -pthread -o dwa obj/glo.o obj/serial.o
The commands should be as following:
g++ -I/usr/local/boost_1_55_0/include -Wall -pedantic -Iinc -c -o obj/glo.o src/glo.cpp
g++ -I/usr/local/boost_1_55_0/include -Wall -pedantic -Iinc -c -o obj/serial.o src/serial.cpp
g++ -L/usr/local/boost_1_55_0/lib -Wall -lboost_system -pthread -o dwa obj/glo.o obj/serial.o

Related

SDL2 Msys2 Windows X64 build

Trying to build SDL2-2.0.14 on Windows with latest MSYS.
If i try to build with the minimal makefile in the root SDL directory i get the following error:
cc -g -O2 -I./include -c -o src/timer/dummy/SDL_systimer.o src/timer/dummy/SDL_systimer.c
cc -g -O2 -I./include -c -o src/video/SDL_RLEaccel.o src/video/SDL_RLEaccel.c
cc -g -O2 -I./include -c -o src/video/SDL_blit.o src/video/SDL_blit.c
cc -g -O2 -I./include -c -o src/video/SDL_blit_0.o src/video/SDL_blit_0.c
cc -g -O2 -I./include -c -o src/video/SDL_blit_1.o src/video/SDL_blit_1.c
cc -g -O2 -I./include -c -o src/video/SDL_blit_A.o src/video/SDL_blit_A.c
cc -g -O2 -I./include -c -o src/video/SDL_blit_N.o src/video/SDL_blit_N.c
cc -g -O2 -I./include -c -o src/video/SDL_blit_auto.o src/video/SDL_blit_auto.c
cc -g -O2 -I./include -c -o src/video/SDL_blit_copy.o src/video/SDL_blit_copy.c
cc -g -O2 -I./include -c -o src/video/SDL_blit_slow.o src/video/SDL_blit_slow.c
cc -g -O2 -I./include -c -o src/video/SDL_bmp.o src/video/SDL_bmp.c
cc -g -O2 -I./include -c -o src/video/SDL_clipboard.o src/video/SDL_clipboard.c
cc -g -O2 -I./include -c -o src/video/SDL_egl.o src/video/SDL_egl.c
src/video/SDL_egl.c:25:2: error: #error this should be not defined
25 | #error this should be not defined
| ^~~~~
In file included from src/video/SDL_egl_c.h:28,
from src/video/SDL_egl.c:36:
./include/SDL_egl.h:29:10: fatal error: EGL/egl.h: No such file or directory
29 | #include <EGL/egl.h>
| ^~~~~~~~~~~
compilation terminated.
make: *** [<builtin>: src/video/SDL_egl.o] Error 1
Solved it removing OPENGL support in include/SDL_config_windows.h:269:
#ifndef SDL_VIDEO_OPENGL_EGL
/* #define SDL_VIDEO_OPENGL_EGL 1 commented for wind64 build */
#endif
Now i've got the libSDL.a file, but if i try to build a test from the test folder:
Alessandro#DESKTOP-954PK5R MINGW64 /c/WORK/sdl_latest/SDL2-2.0.14/test
$ cc -g testkeys.c ../libSDL.a -I../include -o testkeys.exe
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\msys64\tmp\ccSosm3W.o: in function `SDL_main':
C:\WORK\sdl_latest\SDL2-2.0.14\test/testkeys.c:28: undefined reference to `SDL_LogSetPriority'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\WORK\sdl_latest\SDL2-2.0.14\test/testkeys.c:30: undefined reference to `SDL_Init'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\WORK\sdl_latest\SDL2-2.0.14\test/testkeys.c:31: undefined reference to `SDL_GetError'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\WORK\sdl_latest\SDL2-2.0.14\test/testkeys.c:31: undefined reference to `SDL_LogError'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\WORK\sdl_latest\SDL2-2.0.14\test/testkeys.c:35: undefined reference to `SDL_GetScancodeName'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\WORK\sdl_latest\SDL2-2.0.14\test/testkeys.c:35: undefined reference to `SDL_Log'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\WORK\sdl_latest\SDL2-2.0.14\test/testkeys.c:38: undefined reference to `SDL_Quit'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/lib/../lib/libmingw32.a(lib64_libmingw32_a-crt0_c.o): in function `main':
C:/_/M/mingw-w64-crt-git/src/mingw-w64/mingw-w64-crt/crt/crt0_c.c:18: undefined reference to `WinMain'
collect2.exe: error: ld returned 1 exit status
Do i have to link something else?

how to compile project include libcurl "undefined reference"

I'm using compile downloaded source code and try to make my c++ project but these error appear.
user1#ubuntu:~$ make
g++ -std=c++0x -g -Wall -Werror -L/home/user1/project0/libcurl/lib/libcurl.a -I/home/user1/proj/libcurl/include -c my-curl.cpp -o curl.o
g++ -std=c++0x -g -Wall -Werror -L/home/user1/project0/libcurl/lib/libcurl.a -I/home/user1/proj/libcurl/include -c main.cpp -o main.o
g++ -std=c++0x -g -Wall -Werror -L/home/user1/project0/libcurl/lib/libcurl.a -I/home/user1/proj/libcurl/include -o my-curl-app my-curl.o main.o
my-curl.o: In function `CCurlDownloader::start_download()':
~/my-curl.cpp:22: undefined reference to `curl_easy_init'
~/my-curl.cpp:27: undefined reference to `curl_easy_setopt'
~/my-curl.cpp:28: undefined reference to `curl_easy_setopt'
~/my-curl.cpp:29: undefined reference to `curl_easy_setopt'
~/my-curl.cpp:30: undefined reference to `curl_easy_perform'
~/my-curl.cpp:53: undefined reference to `curl_easy_cleanup'
collect2: ld returned 1 exit status
make: *** [my-curl-app] Error 1
and i'm changed -L option to specified directory and add -lcurl for specified lib and result is.
user1#ubuntu:~/project0/my-curl$ make
g++ -std=c++0x -g -Wall -Werror -L/home/user1/practics/libcurl/lib -lcurl -I/home/user1/practics/libcurl/include -c my-curl.cpp -o my-curl.o
g++ -std=c++0x -g -Wall -Werror -L/home/user1/practics/libcurl/lib -lcurl -I/home/user1/practics/libcurl/include -c main.cpp -o main.o
g++ -std=c++0x -g -Wall -Werror -L/home/user1/practics/libcurl/lib -lcurl -I/home/user1/practics/libcurl/include -o my-curl-cpp my-curl.o main.o
my-curl.o: In function `CCurlDownloader::start_download()':
~/my-curl.cpp:22: undefined reference to `curl_easy_init'
~/my-curl.cpp:27: undefined reference to `curl_easy_setopt'
~/my-curl.cpp:28: undefined reference to `curl_easy_setopt'
~/my-curl.cpp:29: undefined reference to `curl_easy_setopt'
~/my-curl.cpp:30: undefined reference to `curl_easy_perform'
~/my-curl.cpp:53: undefined reference to `curl_easy_cleanup'
collect2: ld returned 1 exit status
make: *** [bb-cppurl] Error 1
I and try curl-config to link libs but result still be the same.
user1#atom-linux-server:~/my-curl$ make
g++ -std=c++0x -g -Wall -Werror `/home/user1/project0/libcurl/bin/curl-config --libs` `/home/user1/project0/libcurl/bin/curl-config --cflags` -c my-curl.cpp -o my-curl.o
g++ -std=c++0x -g -Wall -Werror `/home/user1/project0/libcurl/bin/curl-config --libs` `/home/user1/project0/libcurl/bin/curl-config --cflags` -c main.cpp -o main.o
g++ -std=c++0x -g -Wall -Werror `/home/user1/project0/libcurl/bin/curl-config --libs` `/home/user1/project0/libcurl/bin/curl-config --cflags` -o my-curl-app my-curl.o main.o
my-curl.o: In function `CCurlDownloader::start_download()':
~/my-curl.cpp:22: undefined reference to `curl_easy_init'
~/my-curl.cpp:27: undefined reference to `curl_easy_setopt'
~/my-curl.cpp:28: undefined reference to `curl_easy_setopt'
~/my-curl.cpp:29: undefined reference to `curl_easy_setopt'
~/my-curl.cpp:30: undefined reference to `curl_easy_perform'
~/my-curl.cpp:53: undefined reference to `curl_easy_cleanup'
collect2: ld returned 1 exit status
make: *** [bb-cppurl] Error 1
You're using the build tools wrong.
1 - the -L option should specify a directory
2 - there's no -l (lowercase L) option to specify which lib to link with (perhaps from the directory -L identifies)
I move
-L/home/user1/practics/libcurl/lib -lcurl
to the tail of command
g++ -std=c++0x -g -Wall -Werror -I/home/user1/practics/libcurl/include -o my-curl-cpp my-curl.o main.o -L/home/user1/practics/libcurl/lib -lcurl
and it works.

undefined reference to `utf8_nextCharSafeBody_48' icu4c while building a library

I have tried to build the stmd library (http://getassoc.cs.nii.ac.jp/package/stmd-1.1.5.tar.gz) on Ubuntu 12.04.2 amd64 which use the ICU library.
I have installed libicu-dev (version: 48) from Ubuntu repository and using the following configuration.
./configure --with-icu-config=/usr/bin/icu-config --with-defaultstemmer=SNOWBALL --enable-snowball=yes --enable-kill3number=yes
and then,
make
I got the following errors..
/bin/bash ./libtool --mode=link g++ -I. -g -O2 -Wall -Wno-parentheses -Wdeclaration-after- statement -g -O -D_BSD_SOURCE -D_POSIX_C_SOURCE=200112L -D_XOPEN_SOURCE=600 -D_XOPEN_SOURCE_EXTENDED=1 '-DDEFAULT_STEMMER=SNOWBALL' '-DSTMD_MYSTEMMER_DIR="/usr/local/bin"' -g -Wall -O2 -Wall -ansi -pedantic -Wshadow -Wpointer-arith -Wmissing-prototypes -Wwrite-strings -Wno-long-long -D_REENTRANT -I/usr/include '-DUSE_SNOWBALL=1' -I/usr/local/include -DKILL3NUMBER=1 -L/usr/lib -ldl -lm -L/usr/lib -licui18n -licuuc -licudata -ldl -lm -L/usr/local/lib -o stmd stmd.o stmc.o sigflg.o nio.o -L. -L/usr/lib -ldl -lm -L/usr/lib -licui18n -licuuc -licudata -ldl -lm -L/usr/local/lib -lystem -lstemmer -lexpat -ldl
libtool: link: g++ -I. -g -O2 -Wall -Wno-parentheses -Wdeclaration-after-statement -g -O -D_BSD_SOURCE -D_POSIX_C_SOURCE=200112L -D_XOPEN_SOURCE=600 -D_XOPEN_SOURCE_EXTENDED=1 -DDEFAULT_STEMMER=SNOWBALL -DSTMD_MYSTEMMER_DIR=\"/usr/local/bin\" -g -Wall -O2 -Wall -ansi -pedantic -Wshadow -Wpointer-arith -Wmissing-prototypes -Wwrite-strings -Wno-long-long -D_REENTRANT -I/usr/include -DUSE_SNOWBALL=1 -I/usr/local/include -DKILL3NUMBER=1 -o stmd stmd.o stmc.o sigflg.o nio.o -L/usr/lib -L/usr/local/lib -L/home/kobkrit/stmd-1.1.5 -licui18n -licuuc -licudata -lm -lystem -lstemmer /usr/lib/x86_64-linux-gnu/libexpat.so -ldl
/home/kobkrit/stmd-1.1.5/libystem.a(normalizer.o): In function `utf8toutf16':
/home/kobkrit/stmd-1.1.5/normalizer.c:177: undefined reference to `utf8_nextCharSafeBody_48'
/home/kobkrit/stmd-1.1.5/normalizer.c:191: undefined reference to `u_errorName_48'
/home/kobkrit/stmd-1.1.5/libystem.a(normalizer.o): In function `utf16toutf8':
/home/kobkrit/stmd-1.1.5/normalizer.c:227: undefined reference to `u_errorName_48'
/home/kobkrit/stmd-1.1.5/normalizer.c:219: undefined reference to `utf8_appendCharSafeBody_48'
/home/kobkrit/stmd-1.1.5/normalizer.c:223: undefined reference to `utf8_appendCharSafeBody_48'
/home/kobkrit/stmd-1.1.5/libystem.a(normalizer.o): In function `normalizer_sparse_tostr':
/home/kobkrit/stmd-1.1.5/normalizer.c:125: undefined reference to `unorm_normalize_48'
/home/kobkrit/stmd-1.1.5/normalizer.c:138: undefined reference to `unorm_normalize_48'
/home/kobkrit/stmd-1.1.5/normalizer.c:140: undefined reference to `u_errorName_48'
/home/kobkrit/stmd-1.1.5/libystem.a(ngram.o): In function `nextchar':
/home/kobkrit/stmd-1.1.5/ngram.c:158: undefined reference to `utf8_nextCharSafeBody_48'
/home/kobkrit/stmd-1.1.5/ngram.c:150: undefined reference to `utf8_nextCharSafeBody_48'
/home/kobkrit/stmd-1.1.5/libystem.a(ngram.o): In function `ng_output':
/home/kobkrit/stmd-1.1.5/ngram.c:182: undefined reference to `utf8_appendCharSafeBody_48'
collect2: ld returned 1 exit status
make: *** [stmd] Error 1
It seems about the problem between linker to ICU library, so I take a look on Makefile, I found
...
CFLAGS+=$(shell /usr/bin/icu-config --cflags)
CFLAGS+=$(shell /usr/bin/icu-config --cppflags)
LDFLAGS+=$(shell /usr/bin/icu-config --ldflags-searchpath)
LDFLAGS+=$(shell /usr/bin/icu-config --ldflags)
...
(I don't quite sure, does it relate to the problem or not?)
I tried build the stmd library on Ubuntu 10.04.4 LTS amd64 and it went fine and work perfectly. But sadly my server's hardware is not compatible with the old Ubuntu. Please help.
Your command line:
g++ ... -licui18n -licuuc -licudata -ldl -lm ... -o stmd stmd.o stmc.o ...
is incorrect: the order of object files and libraries on command line matters.

How to build Shallot on Ubuntu? [closed]

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Closed 10 years ago.
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I tried to compile Shallot on Ubuntu linux (gcc ./src/shallot.c), but I've got this error:
/tmp/ccwsRxaV.o: In function `main':
shallot.c:(.text+0x3d): undefined reference to `usage'
shallot.c:(.text+0x1ea): undefined reference to `parse_cpuinfo'
shallot.c:(.text+0x2a3): undefined reference to `pattern'
shallot.c:(.text+0x2eb): undefined reference to `usage'
shallot.c:(.text+0x3ba): undefined reference to `usage'
shallot.c:(.text+0x440): undefined reference to `usage'
shallot.c:(.text+0x4de): undefined reference to `usage'
shallot.c:(.text+0x57a): undefined reference to `usage'
/tmp/ccwsRxaV.o:shallot.c:(.text+0x5f4): more undefined references to `usage' follow
/tmp/ccwsRxaV.o: In function `main':
shallot.c:(.text+0x92d): undefined reference to `worker'
shallot.c:(.text+0x941): undefined reference to `pthread_create'
shallot.c:(.text+0x984): undefined reference to `monitor_proc'
shallot.c:(.text+0x998): undefined reference to `pthread_create'
shallot.c:(.text+0x9b7): undefined reference to `worker'
shallot.c:(.text+0x9db): undefined reference to `pthread_join'
Sorry, but I'm not a programmer. I don't really know how this should work.
Well I went to the site, took down the instructions and gave it a try. Seems pretty straight forward:
First clone the source into a "shallot" directory:
git clone https://github.com/katmagic/Shallot.git Shallot
Then we run the configure:
mike#linux-4puc:~/C/Shallot> ./configure Liunx detected. Have you
considered switching to BSD? Configuration successful. This does not
mean it will build. If you are missing gcc, or required
libraries/headers, you will need to install them first.
Finally run the Makefile:
mike#linux-4puc:~/C/Shallot> make
cc -O3 -I/usr/include -I/usr/local/include -L/usr/lib -L/usr/local/lib -Wall -o src/math.o -c src/math.c
cc -O3 -I/usr/include -I/usr/local/include -L/usr/lib -L/usr/local/lib -Wall -o src/error.o -c src/error.c
cc -O3 -I/usr/include -I/usr/local/include -L/usr/lib -L/usr/local/lib -Wall -o src/linux.o -c src/linux.c
cc -O3 -I/usr/include -I/usr/local/include -L/usr/lib -L/usr/local/lib -Wall -o src/print.o -c src/print.c
cc -O3 -I/usr/include -I/usr/local/include -L/usr/lib -L/usr/local/lib -Wall -o src/thread.o -c src/thread.c
cc -O3 -I/usr/include -I/usr/local/include -L/usr/lib -L/usr/local/lib -Wall -o src/shallot.o -c src/shallot.c
cc -O3 -I/usr/include -I/usr/local/include -L/usr/lib -L/usr/local/lib -pthread src/math.o src/error.o src/linux.o src/print.o src/thread.o src/shallot.o -o shallot -lm -lpthread -lssl -lcrypto
And now the executable shallot can be seen in the directory:
mike#linux-4puc:~/C/Shallot> ls
CHANGELOG configure LICENSE Makefile README.asciidoc shallot src
So if you followed all the steps exactly like I did, I suspect the place you're having issues is the block of text I highlighted above. Do you have all the required libraries/headers for building shallot?

Error when trying to compile webdis [closed]

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.
Closed 10 years ago.
I'm going to use webdis but get and error on linking stage. Webdis is a web face for redis database. You can find it here: http://webd.is .
My system configuration is:
* Ubuntu Oneiric Ocelot (11.10 Alpha)
* Gcc 4.6
* Linux kernel 3.0.0-7
When I do make I get the next output:
krolik#krolik-PC:~/Projects/webdis$ make
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o webdis.o webdis.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o cmd.o cmd.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o worker.o worker.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o slog.o slog.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o server.o server.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o libb64/cencode.o libb64/cencode.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o acl.o acl.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o md5/md5.o md5/md5.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o http.o http.c
http.c: In function ‘http_response_write’:
http.c:138:9: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o client.o client.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o websocket.o websocket.c
websocket.c: In function ‘ws_handshake_reply’:
websocket.c:76:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o pool.o pool.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o conf.o conf.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o formats/json.o formats/json.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o formats/raw.o formats/raw.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o formats/common.o formats/common.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o formats/custom-type.o formats/custom-type.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o formats/bson.o formats/bson.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o hiredis/hiredis.o hiredis/hiredis.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o hiredis/sds.o hiredis/sds.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o hiredis/net.o hiredis/net.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o hiredis/async.o hiredis/async.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o hiredis/dict.o hiredis/dict.c
hiredis/dict.c:53:21: warning: ‘dictGenHashFunction’ defined but not used [-Wunused-function]
hiredis/dict.c:73:14: warning: ‘dictCreate’ defined but not used [-Wunused-function]
hiredis/dict.c:160:12: warning: ‘dictReplace’ defined but not used [-Wunused-function]
hiredis/dict.c:182:12: warning: ‘dictDelete’ defined but not used [-Wunused-function]
hiredis/dict.c:238:13: warning: ‘dictRelease’ defined but not used [-Wunused-function]
hiredis/dict.c:258:22: warning: ‘dictGetIterator’ defined but not used [-Wunused-function]
hiredis/dict.c:268:19: warning: ‘dictNext’ defined but not used [-Wunused-function]
hiredis/dict.c:288:13: warning: ‘dictReleaseIterator’ defined but not used [-Wunused-function]
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o jansson/src/dump.o jansson/src/dump.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o jansson/src/error.o jansson/src/error.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o jansson/src/hashtable.o jansson/src/hashtable.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o jansson/src/load.o jansson/src/load.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o jansson/src/strbuffer.o jansson/src/strbuffer.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o jansson/src/utf.o jansson/src/utf.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o jansson/src/value.o jansson/src/value.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o jansson/src/variadic.o jansson/src/variadic.c
cc -c -O3 -Wall -Wextra -I. -Ijansson/src -Ihttp-parser -o http-parser/http_parser.o http-parser/http_parser.c
cc -levent -pthread -o webdis webdis.o cmd.o worker.o slog.o server.o libb64/cencode.o acl.o md5/md5.o http.o client.o websocket.o pool.o conf.o formats/json.o formats/raw.o formats/common.o formats/custom-type.o formats/bson.o hiredis/hiredis.o hiredis/sds.o hiredis/net.o hiredis/async.o hiredis/dict.o jansson/src/dump.o jansson/src/error.o jansson/src/hashtable.o jansson/src/load.o jansson/src/strbuffer.o jansson/src/utf.o jansson/src/value.o jansson/src/variadic.o http-parser/http_parser.o
worker.o: In function `worker_main':
worker.c:(.text+0xd): undefined reference to `event_base_new'
worker.c:(.text+0x29): undefined reference to `event_set'
worker.c:(.text+0x35): undefined reference to `event_base_set'
worker.c:(.text+0x3f): undefined reference to `event_add'
worker.c:(.text+0x6b): undefined reference to `event_base_dispatch'
worker.o: In function `worker_can_read':
worker.c:(.text+0xd2): undefined reference to `event_set'
worker.c:(.text+0xe5): undefined reference to `event_base_set'
worker.o: In function `worker_on_new_client':
worker.c:(.text+0x1f5): undefined reference to `event_set'
worker.c:(.text+0x208): undefined reference to `event_base_set'
worker.c:(.text+0x212): undefined reference to `event_add'
worker.o: In function `worker_monitor_input':
worker.c:(.text+0x2b8): undefined reference to `event_set'
worker.c:(.text+0x2cb): undefined reference to `event_base_set'
worker.o: In function `worker_can_read':
worker.c:(.text+0xf5): undefined reference to `event_add'
worker.o: In function `worker_monitor_input':
worker.c:(.text+0x2e3): undefined reference to `event_add'
server.o: In function `server_start':
server.c:(.text+0x217): undefined reference to `event_reinit'
server.c:(.text+0x338): undefined reference to `event_base_new'
server.c:(.text+0x35a): undefined reference to `event_set'
server.c:(.text+0x369): undefined reference to `event_base_set'
server.c:(.text+0x373): undefined reference to `event_add'
server.c:(.text+0x37f): undefined reference to `event_base_dispatch'
http.o: In function `http_can_write':
http.c:(.text+0x63): undefined reference to `event_set'
http.c:(.text+0x76): undefined reference to `event_base_set'
http.o: In function `http_schedule_write':
http.c:(.text+0x3f1): undefined reference to `event_set'
http.c:(.text+0x404): undefined reference to `event_base_set'
http.o: In function `http_response_write':
http.c:(.text+0x6b1): undefined reference to `event_set'
http.c:(.text+0x6c4): undefined reference to `event_base_set'
http.c:(.text+0x6ce): undefined reference to `event_add'
http.o: In function `http_response_write_chunk':
http.c:(.text+0xc36): undefined reference to `event_set'
http.c:(.text+0xc49): undefined reference to `event_base_set'
http.c:(.text+0xc53): undefined reference to `event_add'
http.o: In function `http_can_write':
http.c:(.text+0x84): undefined reference to `event_add'
http.o: In function `http_schedule_write':
http.c:(.text+0x40f): undefined reference to `event_add'
pool.o: In function `redisLibeventCleanup':
pool.c:(.text+0x89): undefined reference to `event_del'
pool.c:(.text+0x95): undefined reference to `event_del'
pool.o: In function `pool_on_disconnect':
pool.c:(.text+0x179): undefined reference to `event_set'
pool.c:(.text+0x189): undefined reference to `event_base_set'
pool.o: In function `redisLibeventAttach':
pool.c:(.text+0x266): undefined reference to `event_set'
pool.c:(.text+0x281): undefined reference to `event_set'
pool.c:(.text+0x28c): undefined reference to `event_base_set'
pool.c:(.text+0x297): undefined reference to `event_base_set'
pool.o: In function `pool_can_connect':
pool.c:(.text+0x3dd): undefined reference to `event_set'
pool.c:(.text+0x3ed): undefined reference to `event_base_set'
pool.o: In function `pool_connect':
pool.c:(.text+0x595): undefined reference to `event_set'
pool.c:(.text+0x5a5): undefined reference to `event_base_set'
pool.c:(.text+0x5b6): undefined reference to `event_add'
pool.o: In function `redisLibeventAddWrite':
pool.c:(.text+0x6a): undefined reference to `event_add'
pool.o: In function `redisLibeventAddRead':
pool.c:(.text+0x77): undefined reference to `event_add'
pool.o: In function `redisLibeventDelWrite':
pool.c:(.text+0xb8): undefined reference to `event_del'
pool.o: In function `redisLibeventDelRead':
pool.c:(.text+0xc5): undefined reference to `event_del'
pool.o: In function `pool_on_disconnect':
pool.c:(.text+0x19e): undefined reference to `event_add'
pool.o: In function `pool_can_connect':
pool.c:(.text+0x402): undefined reference to `event_add'
collect2: ld returned 1 exit status
make: *** [webdis] Помилка 1
I have libevent.so and libevent-dev headers installed in my /usr/lib directory and I also tried -levent2 instead of -levent in LDFLAGS variable of Makefile but still didn't got any progress. What can be the solution for my issue?
Thank you.
You need to put the -levent command line option after the names of the object files in the linker command line. From the GCC documentation on the -l flag:
-llibrary
-l library
Search the library named library when linking. (The second
alternative with the library as a separate argument is only for
POSIX compliance and is not recommended.)
It makes a difference where in the command you write this option;
the linker searches and processes libraries and object files in the
order they are specified. Thus, foo.o -lz bar.o searches library z
after file foo.o but before bar.o. If bar.o refers to functions in
z, those functions may not be loaded.