On Sat, Nov 1, 2008 at 8:01 AM, Rob Landley <[EMAIL PROTECTED]> wrote: > On Friday 31 October 2008 08:07:41 Christian MICHON wrote: >> Hi, >> >> I *finally* managed to compile uclibc++ and it now complains about >> powl, sqrtl, etc... missing on my system. >> I'm still using uclibc-0.9.29 :( > > I've been fighting with that sucker all week.
well, it almost took me a year since I tried it first :) > > Have you figured out how to get the gcc build to compile libsupc++.a without > building the rest of the libstdc++-v3 directory? (For some reason, that > directory's ./configure is not figuring out what exception handling model the > g++ it _already_built_ is using, unless I explicitly > say --disable-sjlj-exceptions on the command line, which is probably bad on > some non-x86 architecture. And then when I _do_ pass that it goes: > > make[4]: Entering directory > `/home/landley/firmware/firmware/build/temp-i686/build-gcc/i686-unknown-linux/libstdc++-v3/include' > make[4]: *** No rule to make target > `/home/landley/firmware/firmware/build/temp-i686/gcc-core/libstdc++-v3/../gcc/gthr-.h', > needed by `i686-unknown-linux/bits/gthr-default.h'. Stop. > > and the build goes all pear shaped from there. All I really _need_ is a > half-dozen .o files bundled into that .a file, but the gcc build is a big > tightly integrated hairball and the only way I've found so far to build that > one library is "make all". (Not even all-gcc, which skips libstdc++ but > gives me a working g++. Go figure.) > > I suppose I can just disable IMPORT_LIBSUP in uClibc++ defconfig, but then the > result seems unlikely to work. (Not that I'm any sort of expert on what C++ > needs, I avoid it as much as possible...) > > Rob > what I usually do is to build both gcc-core and gcc-g++ at the same time (same directory). I do also a bootstrap of gcc at the same time. In the end, libstdc++ is compiled. when doing so with uclibc, you usually get an error after long minutes of compilation. the solution I found last year (before I released c++ with D*B) was: > when compiling g++, it usually ends up using a soft link to > liststdc++/config/os/gnu-linux/ctype_noninline.h > what I did was to replace this file, too glibc dependent, by this one: > liststdc++/config/os/generic/ctype_noninline.h > and it finally worked what I have not tried yet is to compile uClibc++ with g++ but without libstdc++. (I'll try that tonight, in > than 12h) -- Christian -- http://detaolb.sourceforge.net/, a linux distribution for Qemu with Git inside ! _______________________________________________ uClibc mailing list [email protected] http://busybox.net/cgi-bin/mailman/listinfo/uclibc
