> From: Michele Bucca <michele.bu...@gmail.com> > Date: Sat, 15 Apr 2017 09:18:24 +0200 > To: CLFS Support <clfs-support@lists.clfs.org> > Subject: Re: [Clfs-support] [Native Compiler] Problem Cross-compiling GMP > MPFR and MPC > > Il 14 apr 2017 5:34 PM, "William Harrington" <kb0...@berzerkula.org> ha > scritto: > > > > On Fri, April 14, 2017 13:27, Michele Bucca wrote: > > > Il 14 apr 2017 3:15 PM, "William Harrington" <kb0...@berzerkula.org> ha > > > scritto: > > >> > > >> On Fri, April 14, 2017 08:15, Michele Bucca wrote: > > >> > Hello Everyone, > > >> > > > >> > I'm trying to cross-compile a native host-x-host compiler with the > > >> > musl-libc library > > >> > > > >> > To do that I have to > > >> > > > >> > 1) compile a cross-compiler. (Done) > > >> > 2) Install GMP, MPFR and MPC on the cross-compiler > > >> > 3) make a host-x-host cross-compile to make a native compiler > > >> > > > >> > > >> Hello Michele, > > >> > > >> I also wanted to add, in case there is any confusion, that this may shed > > >> some light: > > >> > > >> https://gcc.gnu.org/onlinedocs/gccint/Configure-Terms.html > > >> > > >> Another option, which may be better, is to build gmp, mpfr and mpc > > >> in-tree > > >> with the GCC source when you build it. Extract mpfr, gmp and mpc into > > >> the > > >> source code so it is laid out: > > >> > > >> gcc-5.3.0/gmp > > >> gcc-5.3.0/mpfr > > >> gcc-5.3.0/mpc > > >> gcc-5.3.0/isl (if also inclulding isl) > > >> > > >> then configure: mkdir gcc-build && cd ../gcc-build && (needed flags > > >> here) > > >> ../gcc-5.3.0/configure (configure options here excluding --with-gmp > > >> --with-mpfr --with-mpc) > > >> > > > > > > As I want to build a static version of GCC I will specify these variables: > > > > > > export CC="i486-linux-musl-gcc -static -Wl,-Bstatic -static-libgcc" > > > export CXX="i486-linux-musl-gcc -static -Wl,-Bstatic -static-libgcc" > > > > > > will this have weird effects if I extract those three libraries source > > > inside the GCC source tree and compile them with it? > > > --Michele > > > > > >> Sincerely, > > >> > > >> William > > > > Hello Michele, > > > > GCC will use the gmp/mpfr/mpc in-tree without issue. I do it quite a bit > > with my own cross-compiles. Just make sure you follow the GCC installation > > documentation regarding gmp/mpfr/mpc at: > > > > https://gcc.gnu.org/install/prerequisites.html > > > > Also, since this mailing list is specific to the CLFS books, you may wish > > to mention which book you are following as a guide for the musl > > cross-toolchain build. > > I'm following CLFS-Embedded (Development)
You _say_ here that you are 'following' clfs-embedded-dev ... tho' don't say _which_ variant of it ... > > > > > Sincerely, > > > > William > > To compile GCC (the first pass) first I export some variables > > export CC="i486-linux-musl-gcc -static -Wl,-Bstatic -static-libgcc" > export CXX="i486-linux-musl-g++ -static -Wl,-Bstatic -static-libgcc" > > This should make the gcc executable static > > ../gcc-6.2.0/configure \ > --prefix=/home/michele/tmp/musl-native-toolchain/output \ > --build=x86_64-linux-gnu \ > --host=i486-linux-musl \ > --target=i486-linux-musl \ > --disable-nls \ > --disable-shared \ > --without-headers \ > --with-newlib \ > --disable-decimal-float \ > --disable-libgomp \ > --disable-libmudflap \ > --disable-libssp \ > --disable-libatomic \ > --disable-libquadmath \ > --disable-threads \ > --enable-languages=c \ > --disable-multilib \ > ... but here you are _clearly_ _not_ 'following' clfs-embedded-dev: where, e.g., are the mpfr/mpc/gmp . > then I give the commands > > make all-gcc all-target-libgcc > > > but the compile process fails with this error > > # If this is the top-level multilib, build all the other > # multilibs. > i486-linux-musl-gcc -g -O2 -O2 -g -O2 -DIN_GCC -W -Wall > -Wno-narrowing -Wwrite-strings -Wcast-qual -Wstrict-prototypes > -Wmissing-prototypes -Wold-style-definition -isystem ./include > -fpic -mlong-double-80 -DUSE_ELF_SYMVER -g -DIN_LIBGCC2 > -fbuilding-libgcc -fno-stack-protector -Dinhibit_libc -fpic > -mlong-double-80 -DUSE_ELF_SYMVER -I. -I. -I../.././gcc > -I../../../gcc-6.2.0/libgcc -I../../../gcc-6.2.0/libgcc/. > -I../../../gcc-6.2.0/libgcc/../gcc > -I../../../gcc-6.2.0/libgcc/../include > -I../../../gcc-6.2.0/libgcc/../libdecnumber/no > -I../../../gcc-6.2.0/libgcc/../libdecnumber -DHAVE_CC_TLS -DUSE_TLS > -o decLibrary.o -MT decLibrary.o -MD -MP -MF decLibrary.dep -c > ../../../gcc-6.2.0/libgcc/../libdecnumber/decLibrary.c > ../../../gcc-6.2.0/libgcc/../libdecnumber/decLibrary.c:27:24: fatal > error: decimal128.h: No such file or directory > #include "decimal128.h" > ^ > compilation terminated. > Makefile:612: set di istruzioni per l'obiettivo "decLibrary.o" non riuscito > make[1]: *** [decLibrary.o] Errore 1 > make[1]: uscita dalla directory > "/home/michele/tmp/musl-native-toolchain/obj-gcc/i486-linux-musl/libgcc" > Makefile:12314: set di istruzioni per l'obiettivo "all-target-libgcc" > non riuscito > make: *** [all-target-libgcc] Errore 2 > > I don't use the sysroot so I can move the toolchain in a different > directory without breaking it. Yes I know that the host and target > swith are the same..I want to obtain a compiler like the one that is > used to create a CLFS temporary system. > > > See Here: > http://www.clfs.org/view/CLFS-3.0.0-SYSVINIT/x86/temp-system/gcc.html > ... and now you're referring to a non-embedded, non-dev book. > > Any help? Thanks > Are you trying to follow clfs-embedded-dev-x86, but are trying to do mpfr/mpc/gmp as separate steps from gcc ? Have you built clfs-embedded-dev-x86 as-is, from start to end, at least once successfully yet, prior to any deviations from the book? > -- Michele > akh -- _______________________________________________ Clfs-support mailing list Clfs-support@lists.clfs.org http://lists.clfs.org/listinfo.cgi/clfs-support-clfs.org
