On Thu, 05 Apr 2012 23:51:56 -0500
"David C. Rankin" <drankinatty@...> wrote:

> All,
> 
>   Help? One of the side effects of the gcc 4.7 move is an install error in
> several packages of the form (gwenview example):
> 
> /usr/bin/ld: cannot find -ltdeinit_gwenview
> collect2: error: ld returned 1 exit status
> libtool: install: error: relink `gwenview.la' with the above command before
> installing it
> 
>   Why would I have to relink anything during 'install' ?? Why doesn't it do it??
> 
>   The 'above command' it wants me to relink with is:
> 
> libtool: relink: g++  -fPIC -DPIC -shared -nostdlib
> /usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.0/../../../../lib/crti.o
> /usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.0/crtbeginS.o  .libs/gwenview_dummy.o
>   -Wl,-rpath -Wl,/opt/trinity/lib -Wl,-rpath -Wl,/opt/tqt3/lib
> -L/build/src/gwenview/src/gvcore/.libs -L/opt/trinity/lib -L/opt/tqt3/lib
> -L/usr/lib/mysql -L/usr/X11R6/lib64 -L/build/pkg/opt/trinity/lib
> -ltdeinit_gwenview -L/usr/lib
> -L/usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.0/../../../../lib -lgwenviewcore
> -ltdeprint -lkmediaplayer -ljpeg -lexiv2 -lkipi -lkio -ltdeui -ltdecore
> -L/build/pkg/usr/lib -lkutils -L/build/pkg/opt/tqt3/lib -ltqt-mt -lpq
> -lmysqlclient -lXrender -lXrandr -lXcursor -lXinerama -lXft -lfreetype
> -lfontconfig -ldl -lpng -lz -lXext -lX11 -lSM -lICE -ltqt -lpthread
> -L/usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.0 -L/lib/../lib -L/usr/lib/../lib
> -L/usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.0/../../.. -lstdc++ -lm -lc -lgcc_s
> /usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.0/crtendS.o
> /usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.0/../../../../lib/crtn.o  -O2
> -march=x86-64 -mtune=generic -O2 -Wl,--no-undefined -Wl,--allow-shlib-undefined
> -Wl,-O1 -Wl,--sort-common -Wl,--as-needed -Wl,-z -Wl,relro -Wl,--hash-style=gnu
>   -Wl,-soname -Wl,gwenview.so -o .libs/gwenview.so
> 
>   Why can't it find -ltdeinit_gwenview? It's right where it should be:
> 
> 23:42 archangel:/dat_e/chroot/david/build/src/gwenview> find . -name
> "libtdeinit_gwenview*"
> ./src/app/libtdeinit_gwenview.la
> ./src/app/.libs/libtdeinit_gwenview.lai
> ./src/app/.libs/libtdeinit_gwenview.soT
> ./src/app/.libs/libtdeinit_gwenview.so
> ./src/app/.libs/libtdeinit_gwenview.la
> 
>   Why does it appear to be missing -L/build/src/gwenview/src/app/.libs ?
> 
>   That's a lot of 'Whys?', but I'm stumped. 

Best guess:  the dependency_libs in the .la file is being incorrectly generated.
The quick-stupid fix would probably involve applying sed in between the
compile and the install phase, since a .la is a text settings file (one of dubious
value that causes endless problems under Gentoo, which is the only reason
I know anything about them at all).

The correct fix is probably to get libtool out of the toolchain entirely, stop
generating the .la, and replace them with pkg-config and a .pc (ref:
http://blog.flameeyes.eu/2008/04/what-about-those-la-files ).