On Sun, May 8, 2016 at 2:20 PM, Pierre Labastie <[email protected]> wrote:
> On 08/05/2016 19:40, Douglas R. Reno wrote: > > > > > > On Sun, May 8, 2016 at 1:34 AM, Pierre Labastie <[email protected] > > <mailto:[email protected]>> wrote: > > > > On 06/05/2016 16:44, Pierre Labastie wrote: > > > Hi, > > > > > > It looks like GCC 6 adds a level of rigor to C/C++ compiling, and > that code > > > which used to work, does not anymore because it relied on not > rigorously > > > defined behavior. > > > > > > I guess this is the case for a lot of packages in BLFS. I already > have found > > > (sorry if some of these have been mentionned already, I do not > have a way to > > > search the mail archives ATM): > > > harbuzz: may be built with: CC="gcc -std=c99" CXX="g++ -std=c++98" > ./configure... > > > php: may be built with: CC="gcc -std=c99" ./configure... > > > libsoup: same > > > xorg-evdev-driver: same > > > libdrm: same > > > gstreamer: same > > > gstreamer-plgins-base: same (not tried the other plugins, but I > guess they > > > need the same) > > > openjdk: fix not ready yet > > > > > > > Update: > > > > When using GCC 6 from an LFS build, only openjdk needs a fix. All > the other > > packages mentioned above work fine. > > > > Pierre > > > > I have some theories as to why this is and how to fix it. I am probably > going > > to fire up one of my old LFS-7.9 GCC5 builds and see what I can do. > > > > I remember reading that libtool should be recompiled when upgrading the > > compiler. Anyone sure if I am correct? > > > > Douglas R. Reno > > > > What I can tell is that some of the failures were coming from undefined > types > (like uint or u_char), which are standard glibc types. I guess the reason > is > that header files were not input in the necessary order. Why it is so and > whether it has something to do with libtool, I cannot tell. > > Pierre > > Looking at all of the build logs on my system (except for PHP and OpenJDK, as I don't have those built), these all seem to use libtool (grep the build logs for libtool). I will have to try these on my GCC5->6 system once GCC6 is finished compiling. Douglas R. Reno
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