Hi, I'm trying to build GCC-4.8.2 (on Gentoo Linux x86_64) to (eventually) build GHDL-0.31. Here's what I tried: 1. Download gnat-gpl-2014-x86_64-linux-bin.tar.gz from http://libre.adacore.com/download/ 2. Unpack the archive (into <gnat-gpl-bin>) 3. Download gcc-4.8.2.tar.bz2 and unpack into <gcc-4.8.2>) 4. mkdir <gcc-4.8.2>/build; cd <gcc-4.8.2>/build 5. PATH="<gnat-gpl-bin>/bin:${PATH}" ../configure --enable-languages=c,c++,ada && PATH="<gnat-gpl-bin>/bin:${PATH}" make The build inevitably fails with: [snip] mkdir -p ada/bldtools/snamest rm -f ada/bldtools/snamest/snames.ads-tmpl ada/bldtools/snamest/snames.adb-tmpl ada/bldtools/snamest/snames.h-tmpl ada/bldtools/snamest/xsnamest.adb ada/bldtools/snamest/xutil.ads ada/bldtools/snamest/xutil.adb cp -p ../../gcc/ada/snames.ads-tmpl ../../gcc/ada/snames.adb-tmpl ../../gcc/ada/snames.h-tmpl ../../gcc/ada/xsnamest.adb ../../gcc/ada/xutil.ads ../../gcc/ada/xutil.adb ada/bldtools/snamest (cd ada/bldtools/snamest; gnatmake -q xsnamest ; ./xsnamest ) a-stream.ads:69:04: run-time configuration error a-stream.ads:69:04: entity "Ada.Tags.Prim_Ptr" not defined gnatmake: "xsnamest.adb" compilation error /bin/sh: ./xsnamest: No such file or directory ../../gcc/ada/Make-generated.in:50: recipe for target 'ada/stamp-snames' failed make[3]: *** [ada/stamp-snames] Error 127 make[3]: Leaving directory '/home/dioo/Prog/gcc-4.8.2/build/gcc' Makefile:4156: recipe for target 'all-stage1-gcc' failed make[2]: *** [all-stage1-gcc] Error 2 make[2]: Leaving directory '/home/dioo/Prog/gcc-4.8.2/build' Makefile:20118: recipe for target 'stage1-bubble' failed make[1]: *** [stage1-bubble] Error 2 make[1]: Leaving directory '/home/dioo/Prog/gcc-4.8.2/build' Makefile:885: recipe for target 'all' failed make: *** [all] Error 2 I don't understand this Ada.Tags.Prim_Ptr and the only thing I could find related to it is https://gcc.gnu.org/ml/gcc-patches/2012-07/msg00712.html (and this change is already applied in 4.8.2) If anyone can help me bootstrap this, it would be much appreciated. Regards, Olivier