Ergh...sorry about the reply to individual...stupid gmail defaults. Copy paste of that email below: First off, thanks for getting back to me so quickly...I very much appreciate it. On Fri, Oct 25, 2013 at 8:47 AM, Ian Lance Taylor <iant@xxxxxxxxxx> wrote: > On Fri, Oct 25, 2013 at 4:05 AM, Cyd Haselton <chaselton@xxxxxxxxx> wrote: >> >> I've cross-built a native version of GCC 4.7 to run on an android device >> using >> configure --build=redhat-linux-x86_64 --host=arm-linux-androideabi >> --target=arm-linux-androideabi (options) *snip* >> >> Is there a way to build without libcpp? Or, remove the dependencies on >> libcpp that are causing the later portions of the build to fail? > > libcpp is an essential part of the compiler; there is no way to > disable it. Thanks...that's good to know. > > This error looks to me to be a bug in the Android header files. The > code in libcpp is > tb = localtime (&st->st_mtime); > That should be fine. Hmmm. I'm *very* new to developing for Android...and building compilers in general...but <wild guess mode on> If this library is for the C/C++ preprocessor, is it possible that the error could be due to Android's very limited support for C++? </wild guess mode off> > > If you are convinced that the Android header files are correct, then > please file a bug against GCC; see http://gcc.gnu.org/bugs/ . > Probably an error on my part...or a problem that's been fixed in the bleeding edge source. At any rate, I'll check the headers...once I figure out which ones to review. > In the meantime you can fix the problem by editing the GCC sources to > do something like > time_t t = (time_t) st->st_mtime; > tb = localtime (&t); Ergh. Adding just this throws an 'undeclared in scope' error. Guessing the correct declaration is something like this struct time_t *t = NULL; throws another 'cannot convert' error...specifically cannot convert 'int**' to 'const time_t*. The overall problem here is that I need familiarity with C, which I decidedly do not have. Off to grep the error and try alternate declarations. Maybe 'const long int' instead of 'struct'... > > Ian On Fri, Oct 25, 2013 at 8:47 AM, Ian Lance Taylor <iant@xxxxxxxxxx> wrote: > On Fri, Oct 25, 2013 at 4:05 AM, Cyd Haselton <chaselton@xxxxxxxxx> wrote: >> >> I've cross-built a native version of GCC 4.7 to run on an android device >> using >> configure --build=redhat-linux-x86_64 --host=arm-linux-androideabi >> --target=arm-linux-androideabi (options) >> make -d configure-target-libgcc >> make -d all-host all-target >> >> In (options) I basically disable everything except for >> --enable-languages=c. >> >> However, when I attempt the same with GCC 4.8, I consistently run into the >> following error: >> >> ../../gcc-4.8/libcpp/macro.c:249:34: error: invalid conversion from 'long >> unsigned int*' to 'const time_t* {aka const long int*}' [-fpermissive] >> >> Adding -fpermissive allows the build to continue for a while, but it fails >> later on with a bunch of undefined references. >> Disabling libcpp by using --disable-libcpp or --disable-cpplib or >> --enable-libcpp=no allows the build to continue for a while, but then it >> fails because of a dependency on libcpp further along in the build. >> >> Is there a way to build without libcpp? Or, remove the dependencies on >> libcpp that are causing the later portions of the build to fail? > > libcpp is an essential part of the compiler; there is no way to > disable it. > > This error looks to me to be a bug in the Android header files. The > code in libcpp is > tb = localtime (&st->st_mtime); > That should be fine. > > If you are convinced that the Android header files are correct, then > please file a bug against GCC; see http://gcc.gnu.org/bugs/ . > > In the meantime you can fix the problem by editing the GCC sources to > do something like > time_t t = (time_t) st->st_mtime; > tb = localtime (&t); > > Ian
