qt5.5 cross-compilation gstreamer error

[SGaist]

Hi,

Is it the system's libpcre ?

[unnamed]

with -system-pcre added to configure i get this:
PCRE auto-detection... ()
/Users/un/opt/rpi-tools/arm-linux-gnueabihf-osx/bin/arm-linux-gnueabihf-g++ -c -pipe -marm -mfpu=vfp -mtune=arm1176jzf-s -march=armv6zk -mabi=aapcs-linux -mfloat-abi=hard --sysroot=/mnt/rasp-pi-rootfs -O2 -Wall -W -fPIC -I. -I../../../mkspecs/devices/linux-rasp-pi-g++ -o pcre.o pcre.cpp
/Users/un/opt/rpi-tools/arm-linux-gnueabihf-osx/bin/arm-linux-gnueabihf-g++ -Wl,-rpath-link,/mnt/rasp-pi-rootfs/opt/vc/lib -Wl,-rpath-link,/mnt/rasp-pi-rootfs/usr/lib/arm-linux-gnueabihf -Wl,-rpath-link,/mnt/rasp-pi-rootfs/lib/arm-linux-gnueabihf -mfloat-abi=hard --sysroot=/mnt/rasp-pi-rootfs -Wl,-O1 -o pcre pcre.o --sysroot=/mnt/rasp-pi-rootfs -lpthread -lpcre16
/Users/un/opt/rpi-tools/arm-linux-gnueabihf-osx/bin/../lib/gcc/arm-linux-gnueabihf/4.7.2/../../../../arm-linux-gnueabihf/bin/ld: cannot find -lpcre16
collect2: error: ld returned 1 exit status
make: *** [pcre] Error 1
PCRE disabled.
PCRE support cannot be enabled due to functionality tests!

[SGaist]

Do you have the development packages installed on your target ?

[unnamed]

when using -system-pcre and sudo ln -s libpcre.so libpcre16.so i'am back to gstreamer error
##########################################################################
/Users/un/opt/rpi-tools/arm-linux-gnueabihf-osx/bin/../lib/gcc/arm-linux-gnueabihf/4.7.2/../../../../arm-linux-gnueabihf/bin/ld: /mnt/rasp-pi-rootfs/usr/lib/arm-linux-gnueabihf/libglib-2.0.a(libglib_2_0_la-gregex.o): undefined reference to symbol 'pcre_study'
/Users/un/opt/rpi-tools/arm-linux-gnueabihf-osx/bin/../lib/gcc/arm-linux-gnueabihf/4.7.2/../../../../arm-linux-gnueabihf/bin/ld: note: 'pcre_study' is defined in DSO /mnt/rasp-pi-rootfs/lib/arm-linux-gnueabihf/libpcre.so.3 so try adding it to the linker command line
/mnt/rasp-pi-rootfs/lib/arm-linux-gnueabihf/libpcre.so.3: could not read symbols: Invalid operation
collect2: error: ld returned 1 exit status
make: *** [gstreamer] Error 1
GStreamer 1.0 disabled.
GStreamer support cannot be enabled due to functionality tests!
##########################################################################

[unnamed]

This post is deleted!

[unnamed]

got it working, i have added -lpcre to pkg-config file o glib :)

[SGaist]

Since you added that symlink, it means that you don't have the pcre dev package installed

[unnamed]

hm you are right but where from do i get libpcre16 ?
after symlinking that lib i can configure but when i do "make" i get error connected with libpcre16 i think
##########################################################################
ractstate.o .obj/moc_qstate.o .obj/moc_qfinalstate.o .obj/moc_qhistorystate.o .obj/moc_qabstracttransition.o .obj/moc_qsignaltransition.o .obj/moc_qeventtransition.o -lpthread -lz -lpcre16 -lm -ldl -lrt
.obj/qthread_unix.o: In function QThreadPrivate::createEventDispatcher(QThreadData*)': qthread_unix.cpp:(.text+0x280): undefined reference to QEventDispatcherGlib::versionSupported()'
qthread_unix.cpp:(.text+0x29c): undefined reference to QEventDispatcherGlib::QEventDispatcherGlib(QObject*)' .obj/qregularexpression.o: In function pcre16SafeExec(real_pcre16 const*, pcre16_extra const*, unsigned short const*, int, int, int, int*, int)':
qregularexpression.cpp:(.text+0x264): undefined reference to pcre16_exec' qregularexpression.cpp:(.text+0x2cc): undefined reference to pcre16_jit_stack_alloc'
qregularexpression.cpp:(.text+0x334): undefined reference to pcre16_exec' .obj/qregularexpression.o: In function QRegularExpressionPrivate::~QRegularExpressionPrivate()':
qregularexpression.cpp:(.text+0x574): undefined reference to pcre16_free_study' qregularexpression.cpp:(.text+0x610): undefined reference to pcre16_free'
.obj/qregularexpression.o: In function QRegularExpressionPrivate::cleanCompiledPattern()': qregularexpression.cpp:(.text+0x6cc): undefined reference to pcre16_free_study'
qregularexpression.cpp:(.text+0x6f8): undefined reference to pcre16_free' .obj/qregularexpression.o: In function QRegularExpressionPrivate::getPatternInfo()':
qregularexpression.cpp:(.text+0x718): undefined reference to pcre16_fullinfo' qregularexpression.cpp:(.text+0x72c): undefined reference to pcre16_fullinfo'
qregularexpression.cpp:(.text+0x780): undefined reference to pcre16_fullinfo' qregularexpression.cpp:(.text+0x7a4): undefined reference to pcre16_config'
.obj/qregularexpression.o: In function QRegularExpressionPrivate::compilePattern()': qregularexpression.cpp:(.text+0xa00): undefined reference to pcre16_free_study'
qregularexpression.cpp:(.text+0xa80): undefined reference to pcre16_compile2' qregularexpression.cpp:(.text+0xae4): undefined reference to pcre16_free'
.obj/qregularexpression.o: In function QRegularExpressionPrivate::optimizePattern(QRegularExpressionPrivate::OptimizePatternOption)': qregularexpression.cpp:(.text+0xb70): undefined reference to pcre16_study'
qregularexpression.cpp:(.text+0xc78): undefined reference to pcre16_assign_jit_stack' .obj/qregularexpression.o: In function QRegularExpressionPrivate::captureIndexForName(QString const&) const':
qregularexpression.cpp:(.text+0xd48): undefined reference to pcre16_get_stringnumber' .obj/qregularexpression.o: In function QRegularExpressionMatch::capturedRef(QString const&) const':
qregularexpression.cpp:(.text+0x17a4): undefined reference to pcre16_get_stringnumber' .obj/qregularexpression.o: In function QRegularExpressionMatch::captured(QString const&) const':
qregularexpression.cpp:(.text+0x1904): undefined reference to pcre16_get_stringnumber' .obj/qregularexpression.o: In function QRegularExpressionMatch::capturedStart(QString const&) const':
qregularexpression.cpp:(.text+0x19c8): undefined reference to pcre16_get_stringnumber' .obj/qregularexpression.o: In function QRegularExpressionMatch::capturedLength(QString const&) const':
qregularexpression.cpp:(.text+0x1a6c): undefined reference to pcre16_get_stringnumber' .obj/qregularexpression.o:qregularexpression.cpp:(.text+0x1b10): more undefined references to pcre16_get_stringnumber' follow
.obj/qregularexpression.o: In function QRegularExpression::namedCaptureGroups() const': qregularexpression.cpp:(.text+0x4090): undefined reference to pcre16_fullinfo'
qregularexpression.cpp:(.text+0x40a8): undefined reference to pcre16_fullinfo' qregularexpression.cpp:(.text+0x40c0): undefined reference to pcre16_fullinfo'
.obj/qregularexpression.o: In function QThreadStorage<QPcreJitStackPointer*>::deleteData(void*)': qregularexpression.cpp:(.text._ZN14QThreadStorageIP20QPcreJitStackPointerE10deleteDataEPv[_ZN14QThreadStorageIP20QPcreJitStackPointerE10deleteDataEPv]+0x18): undefined reference to pcre16_jit_stack_free'
.obj/qcoreapplication.o: In function QCoreApplicationPrivate::createEventDispatcher()': qcoreapplication.cpp:(.text+0x9c): undefined reference to QEventDispatcherGlib::versionSupported()'
qcoreapplication.cpp:(.text+0xb8): undefined reference to `QEventDispatcherGlib::QEventDispatcherGlib(QObject*)'
collect2: error: ld returned 1 exit status
make[3]: *** [../../lib/libQt5Core.so.5.5.1] Error 1
make[2]: *** [sub-corelib-make_first] Error 2
make[1]: *** [sub-src-make_first] Error 2
make: *** [module-qtbase-make_first] Error 2
##########################################################################

where from can i get libpcre16 ? i'am search using apt-cache search, and thats what i get:
apt-cache search libpcre
clisp-module-pcre - clisp module that adds libpcre support
libpcre++-dev - C++ wrapper class for pcre (development)
libpcre++0 - C++ wrapper class for pcre (runtime)
libpcre-ocaml - OCaml bindings for PCRE (runtime)
libpcre-ocaml-dev - OCaml bindings for PCRE (Perl Compatible Regular Expression)
libpcre3 - Perl 5 Compatible Regular Expression Library - runtime files <- installed
libpcre3-dbg - Perl 5 Compatible Regular Expression Library - debug symbols
libpcre3-dev - Perl 5 Compatible Regular Expression Library - development files <- installed
libpcrecpp0 - Perl 5 Compatible Regular Expression Library - C++ runtime files
pcregrep - grep utility that uses perl 5 compatible regexes.

[SGaist]

Silly question but did you install these on your host or target ?

[unnamed]

on my target :)

[SGaist]

Did you re-do the configuration after installing the missing dependencies ?

[unnamed]

yes, many times.
every time i change something in my setup i do
make clean
new ./configure command to try with different options
make

[SGaist]

make clean is not enough, you need to start from a clean state.

I recommend out of source builds so when something goes wrong you can just nuke the folder and you don't pollute the sources.

[unnamed]

ok, i'am going to try today, so i need to remove whole Src folder, redownload and rerun whole process ?

//edit
same thing happened. i have completly removed Src folder, and redownloaded it with qt "maintaince tool"
i'am stuck at:
###############################################################################################
eventtransition.o -lpthread -lz -lpcre16 -lm -ldl -lrt
.obj/qregularexpression.o: In function pcre16SafeExec(real_pcre16 const*, pcre16_extra const*, unsigned short const*, int, int, int, int*, int)': qregularexpression.cpp:(.text+0x264): undefined reference to pcre16_exec'
qregularexpression.cpp:(.text+0x2cc): undefined reference to pcre16_jit_stack_alloc' qregularexpression.cpp:(.text+0x334): undefined reference to pcre16_exec'
.obj/qregularexpression.o: In function QRegularExpressionPrivate::~QRegularExpressionPrivate()': qregularexpression.cpp:(.text+0x574): undefined reference to pcre16_free_study'
qregularexpression.cpp:(.text+0x610): undefined reference to pcre16_free' .obj/qregularexpression.o: In function QRegularExpressionPrivate::cleanCompiledPattern()':
qregularexpression.cpp:(.text+0x6cc): undefined reference to pcre16_free_study' qregularexpression.cpp:(.text+0x6f8): undefined reference to pcre16_free'
.obj/qregularexpression.o: In function QRegularExpressionPrivate::getPatternInfo()': qregularexpression.cpp:(.text+0x718): undefined reference to pcre16_fullinfo'
qregularexpression.cpp:(.text+0x72c): undefined reference to pcre16_fullinfo' qregularexpression.cpp:(.text+0x780): undefined reference to pcre16_fullinfo'
qregularexpression.cpp:(.text+0x7a4): undefined reference to pcre16_config' .obj/qregularexpression.o: In function QRegularExpressionPrivate::compilePattern()':
qregularexpression.cpp:(.text+0xa00): undefined reference to pcre16_free_study' qregularexpression.cpp:(.text+0xa80): undefined reference to pcre16_compile2'
qregularexpression.cpp:(.text+0xae4): undefined reference to pcre16_free' .obj/qregularexpression.o: In function QRegularExpressionPrivate::optimizePattern(QRegularExpressionPrivate::OptimizePatternOption)':
qregularexpression.cpp:(.text+0xb70): undefined reference to pcre16_study' qregularexpression.cpp:(.text+0xc78): undefined reference to pcre16_assign_jit_stack'
.obj/qregularexpression.o: In function QRegularExpressionPrivate::captureIndexForName(QString const&) const': qregularexpression.cpp:(.text+0xd48): undefined reference to pcre16_get_stringnumber'
.obj/qregularexpression.o: In function QRegularExpressionMatch::capturedRef(QString const&) const': qregularexpression.cpp:(.text+0x17a4): undefined reference to pcre16_get_stringnumber'
.obj/qregularexpression.o: In function QRegularExpressionMatch::captured(QString const&) const': qregularexpression.cpp:(.text+0x1904): undefined reference to pcre16_get_stringnumber'
.obj/qregularexpression.o: In function QRegularExpressionMatch::capturedStart(QString const&) const': qregularexpression.cpp:(.text+0x19c8): undefined reference to pcre16_get_stringnumber'
.obj/qregularexpression.o: In function QRegularExpressionMatch::capturedLength(QString const&) const': qregularexpression.cpp:(.text+0x1a6c): undefined reference to pcre16_get_stringnumber'
.obj/qregularexpression.o:qregularexpression.cpp:(.text+0x1b10): more undefined references to pcre16_get_stringnumber' follow .obj/qregularexpression.o: In function QRegularExpression::namedCaptureGroups() const':
qregularexpression.cpp:(.text+0x4090): undefined reference to pcre16_fullinfo' qregularexpression.cpp:(.text+0x40a8): undefined reference to pcre16_fullinfo'
qregularexpression.cpp:(.text+0x40c0): undefined reference to pcre16_fullinfo' .obj/qregularexpression.o: In function QThreadStorage<QPcreJitStackPointer*>::deleteData(void*)':
qregularexpression.cpp:(.text._ZN14QThreadStorageIP20QPcreJitStackPointerE10deleteDataEPv[_ZN14QThreadStorageIP20QPcreJitStackPointerE10deleteDataEPv]+0x18): undefined reference to `pcre16_jit_stack_free'
collect2: error: ld returned 1 exit status
make[3]: *** [../../lib/libQt5Core.so.5.5.1] Error 1
make[2]: *** [sub-corelib-make_first] Error 2
make[1]: *** [sub-src-make_first] Error 2
make: *** [module-qtbase-make_first] Error 2
###############################################################################################

[SGaist]

What distribution are you running on your Pi ?

[unnamed]

newest jessie

hmm i searched my mac for pcre libs as i think that something confuses qt and i found one occurence of libpcre16 located in /brew2/local/Cellar/pcre
its dependency for something installed via homebrew
is it possible that its source of my failures ? :)

[SGaist]

That possibly can interfere. Note that I'm more used to cross-compilation from Linux host. It make things way easier.

[unnamed]

after 2 weeks got it working... tried on my macbook air with almost clean el capitan :)
to many libs, projects, work stuff on my mac pro and i can't find the problem, maybe something connected to homebrew (something like apt-get in linux) installations.

for anyone who stumble upon this thread that should be a good lesson -> clean system = simple compilation :)

thanks for help SGaist :)

[SGaist]

Good !

You're welcome !

Then please, mark the thread as solved using the "Topic Tool" button so other forum users may know a solution has been found :)

[DarCom]

@unnamed
Hi.
I encountered same problem, would you please tell what did you do to solve the problem?
By the way, what do you mean by " i have added -lpcre to pkg-config file o glib :)"?
Thanks in advance.