c++ - Vinculación contra libQt5Core

ubuntu compilation

Question

Instalé Qt5.4 con el instalador en línea (trabajando en ubuntu 14). Estoy tratando de compilar mi fuente y enlace de c ++ contra libQt5Core pero ld arroja un error:

make
g++ -Wall test.o Party.o Communication.o FileParser.o PeerConnection.o ServerModule.o Utilities.o -o party -g -L/home/bush/Qt/5.4/gcc_64/lib -L/usr/lib/x86_64-linux-gnu/ -lQt5Core -lboost_system -lpthread
/usr/bin/ld: warning: libicui18n.so.53, needed by /home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libicuuc.so.53, needed by /home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so, not found (try using -rpath or -rpath-link)
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucal_setMillis_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_fromUnicode_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucal_get_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucal_inDaylightTime_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucal_open_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_countAvailable_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_countAliases_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `u_errorName_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucal_openCountryTimeZones_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `u_strToUpper_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_getDefaultName_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `uenum_next_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucol_strcoll_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_getMaxCharSize_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_getAvailableName_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucol_open_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucal_getTimeZoneDisplayName_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_toUnicode_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `uenum_close_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucol_getSortKey_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_getAlias_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_close_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucol_setAttribute_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucal_close_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucal_openTimeZoneIDEnumeration_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucal_openTimeZones_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_getStandardName_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucol_close_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_compareNames_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucal_clone_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `u_strToLower_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucal_getDefaultTimeZone_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_open_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_setSubstChars_53''
/home/bush/Qt/5.4/gcc_64/lib/libQt5Core.so: undefined reference to `ucal_getDSTSavings_53''
collect2: error: ld returned 1 exit status
make: *** [party] Error 1

Mi makefile es:

CPPFLAGS=-g -c --std=c++0x -I/usr/include -I/home/bush/Qt/5.4/gcc_64/include -I/home/bush/Qt/5.4/gcc_64/include/QtCore -I/usr/include/boost
LDFLAGS=-g -L/home/bush/Qt/5.4/gcc_64/lib -L/usr/lib/x86_64-linux-gnu/ -lQt5Core -lboost_system -lpthread

all:party

party:test.o Party.o Communication.o FileParser.o PeerConnection.o ServerModule.o Utilities.o
    g++ -Wall $^ -o party $(LDFLAGS)

test.o:test.cpp
    g++ $(CPPFLAGS) test.cpp
Party.o:Party.cpp
    g++ $(CPPFLAGS) Party.cpp
Communication.o:Communication.cpp
    g++ $(CPPFLAGS) Communication.cpp
FileParser.o:FileParser.cpp
    g++ -fPIC $(CPPFLAGS) FileParser.cpp
PeerConnection.o:PeerConnection.cpp
    g++ $(CPPFLAGS) PeerConnection.cpp
ServerModule.o:ServerModule.cpp
    g++ $(CPPFLAGS) ServerModule.cpp
Utilities.o:Utilities.cpp
    g++ $(CPPFLAGS) Utilities.cpp

Answer 1

En mi caso funcionó después de hacer 3 enlaces simbólicos. La biblioteca estaba instalada pero tenía una versión más nueva (55) que la esperada (54).

sudo ln -s /usr/local/Qt/5.5/gcc_64/lib/libicui18n.so.54 /usr/lib/x86_64-linux-gnu/libicui18n.so.54
sudo ln -s /usr/local/Qt/5.5/gcc_64/lib/libicuuc.so.54 /usr/lib/x86_64-linux-gnu/libicuuc.so.54
sudo ln -s /usr/local/Qt/5.5/gcc_64/lib/libicudata.so.54 /usr/lib/x86_64-linux-gnu/libicudata.so.54

Answer 2

Intente agregar -licuuc a los LDFLAGS del makefile.

sudo apt-get install libicu-dev

Answer 3

Me encontré con el mismo problema. Pero encuentro mi salida solo por este código.

export  LD_LIBRARY_PATH=/usr/local/Qt/5.5/gcc_64/lib:$LD_LIBRARY_PATH

Answer 4

Recibo este error cuando intentaba construir Iris en Ubuntu. Lo resolví eliminando CONFIG + = static del archivo .pro

Answer 5

Recibo estos errores cuando intentaba compilar mi proyecto en Debian 8 (con libicu52 del repositorio oficial) de QtCreator. Lo resolví cambiando ''Ambiente'' para mi Qt Kit (5.8.0) a: LD_LIBRARY_PATH = / opt / Qt / 5.8 / gcc_64 / lib: $ {LD_LIBRARY_PATH}.

Captura de pantalla: Cambios marcados por línea roja.