Bug 563926 – kde-base/kdelibs-4.14.8 - FindKDE4Internal.cmake hides too many symbols

• Status: RESOLVED NEEDINFO
• Product: Gentoo Linux

[Description Heiko Schäfer 2015-10-24 07:09:16 UTC]

I use gcc 4.9.3.

In the file /usr/share/apps/cmake/modules/FindKDE4Internal.cmake the test on visisibility adds a CXXFLAG=-fvisibility=hidden.
This in turn hides to many symbols causing a quite large amount of KDE4 based packages to fail with symbol errors.

I haven't the time and mood to dig too much into the KDE sources, but changing

check_cxx_compiler_flag(-fvisibility=hidden __KDE_HAVE_GCC_VISIBILITY)
set( __KDE_HAVE_GCC_VISIBILITY ${__KDE_HAVE_GCC_VISIBILITY} CACHE BOOL "GCC support for hidden visibility")

to

#check_cxx_compiler_flag(-fvisibility=hidden __KDE_HAVE_GCC_VISIBILITY)
set( __KDE_HAVE_GCC_VISIBILITY FALSE CACHE BOOL "GCC support for hidden visibility")

is a workaround at the expense of larger binaries and surely not suitablke for KDE developers


Reproducible: Sometimes

[Comment 1 Heiko Schäfer 2015-10-24 13:00:59 UTC]

My workaround is far from perfect:

https://bugs.kde.org/show_bug.cgi?id=313763

I now encounter this bug with lightdm-kde (using classic theme)

I would be VERY happy to have a working KDE4 again, at least so far I can use 

* konsole
* kdevelop
* lightdm-kde

I hardly can believe I'm the only one who has so much problems building KDE with -fvisibility=hidden

Note: I use Qt 4.8.7

[Comment 2 Johannes Huber (RETIRED) 2016-04-13 12:10:10 UTC]

What about current stable version =kde-base/kdelibs-4.14.16?

[Comment 3 Johannes Huber (RETIRED) 2016-05-18 09:12:50 UTC]

(In reply to Johannes Huber from comment #2)
> What about current stable version =kde-base/kdelibs-4.14.16?