[Clfs-support] [Native Compiler] Problem Cross-compiling GMP MPFR and MPC

[Michele Bucca]

Il 16 apr 2017 5:36 PM, "Michele Bucca" <michele.bucca at gmail.com> ha
scritto:
>
> 2017-04-16 9:15 GMT+02:00 Michele Bucca <michele.bucca at gmail.com>:
> > 2017-04-15 21:58 GMT+02:00 Michele Bucca <michele.bucca at gmail.com>:
> >>
> >> Il 15 apr 2017 9:56 PM, "akhiezer" <lfs65 at cruziero.com> ha scritto:
> >>>
> >>> > From: Michele Bucca <michele.bucca at gmail.com>
> >>> > Date: Sat, 15 Apr 2017 13:15:01 +0200
> >>> > To: CLFS Support <clfs-support at lists.clfs.org>
> >>> > Subject: Re: [Clfs-support] [Native Compiler] Problem
Cross-compiling
> >>> > GMP
> >>> >  MPFR and MPC
> >>> >
> >>> > 2017-04-15 11:22 GMT+02:00 Michele Bucca <michele.bucca at gmail.com>:
> >>>         .
> >>>         .
> >>> >
> >>> > I've solved the problem with the libraries but the problem while
> >>> > compiling the host-x-host compiler still persists
> >>>
> >>>
> >>> OK: what you're aiming for, depends of course on a long chain of
details
> >>> being all exactly correct. So let's assume for now that all has been
> >>> done correctly thus far: and deal with the gcc error 'at face value'.
> >>>
> >>>
> >>> >
> >>> > 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-src/libgcc -I../../../gcc-src/libgcc/.
> >>> > -I../../../gcc-src/libgcc/../gcc
-I../../../gcc-src/libgcc/../include
> >>> > -I../../../gcc-src/libgcc/../libdecnumber/no
> >>> > -I../../../gcc-src/libgcc/../libdecnumber -DHAVE_CC_TLS  -DUSE_TLS
-o
> >>> > decLibrary.o -MT decLibrary.o -MD -MP -MF decLibrary.dep -c
> >>> > ../../../gcc-src/libgcc/../libdecnumber/decLibrary.c
> >>> > ../../../gcc-src/libgcc/../libdecnumber/decLibrary.c:27:24: fatal
> >>> > error: decimal128.h: No such file or directory
> >>> >  #include "decimal128.h"
> >>> >                         ^
> >>>
> >>>
> >>> Is this an issue where 'decimal128.h' does exist, but is just not
> >>> being found. Do you have a 'decimal128.h' file anywhere under your
> >>> compile/target areas - just do 'find -P / -iname decimal128.h -ls'
> >>> to get them all.
> >>
> >> Compile/target areas?
> >
> > I did this:
> >
> > michele at glados:~/tmp/musl-native-toolchain$ find -P $PWD -iname
decimal128.h -ls
> > 22569295    4 -rw-r--r--   1 michele  michele      4054 gen  4  2016
> >
/home/michele/tmp/musl-native-toolchain/gcc-src/libdecnumber/dpd/decimal128.h
> > 22569320    4 -rw-r--r--   1 michele  michele        28 mar 24  2007
> >
/home/michele/tmp/musl-native-toolchain/gcc-src/libdecnumber/bid/decimal128.h
> > 10093214    4 -rw-r--r--   1 michele  michele      4054 gen  4  2016
> >
/home/michele/tmp/musl-native-toolchain/gcc-6.2.0/libdecnumber/dpd/decimal128.h
> > 10093239    4 -rw-r--r--   1 michele  michele        28 mar 24  2007
> >
/home/michele/tmp/musl-native-toolchain/gcc-6.2.0/libdecnumber/bid/decimal128.h
> >
> > the GCC source was unpacked twice because of me trying to fix this
> > problem. I thought that there was a problem with the source code of
> > GCC
> >
> >>>
> >>>
> >>> If it does exist, then it may be worth trying - at least, as a
debugging
> >>> step - a symlink to it from where gcc is looking for it.
> >>>
>
>
> I made sure that GCC could find the decimal128.h and the other files
> that it was looking for but I got this error.
>
> 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-src/libgcc -I../../../gcc-src/libgcc/.
> -I../../../gcc-src/libgcc/../gcc -I../../../gcc-src/libgcc/../include
> -I../../../gcc-src/libgcc/../libdecnumber/no
> -I../../../gcc-src/libgcc/../libdecnumber -DHAVE_CC_TLS  -DUSE_TLS -o
> decSingle.o -MT decSingle.o -MD -MP -MF decSingle.dep -c
> ../../../gcc-src/libgcc/../libdecnumber/decSingle.c
> make[1]: ***  Nessuna regola per generare l'obiettivo
> "../../../gcc-src/libgcc/../libdecnumber/no/decimal32.c", necessario
> per "decimal32.o".  Arresto.
> make[1]: uscita dalla directory
> "/home/michele/tmp/musl-native-toolchain/2-obj-gcc/i486-linux-musl/libgcc"
> Makefile:11384: set di istruzioni per l'obiettivo "all-target-libgcc"
> non riuscito
> make: *** [all-target-libgcc] Errore 2
>
> it says that there's no rule to generate the object decimal32.o

problem solved removing the --disable-decimal-float switch from configure.

to build C++ support in the host-x-host relocatable compiler use

--build=${CLFS_HOST}
--host=${CLFS_TARGET}
--target=${CLFS_TARGET}
--enable-languages=c,c++ \
--disable-libmudflap \
--disable-libsatinizer \
--disable-libmpx \
--enable-c99 \
--enable-long-long \
--disable-nls \
--disable-multilib
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