[Clfs-support] [clfs-embedded GIT-20161228-x86 ] GCC-6.2.0 - Final: libmpx failed to build

[Michele Bucca]

I'm trying to build GCC (Stage 2) in the book however I get this
error. I'm building for i486-linux-musl

make[4]: Entering directory
'/mnt/clfs/sources/gcc-build/i486-linux-musl/libmpx/mpxrt'
/bin/sh ../libtool  --tag=CC   --mode=compile
/mnt/clfs/sources/gcc-build/./gcc/xgcc
-B/mnt/clfs/sources/gcc-build/./gcc/
-B/mnt/clfs/cross-tools/i486-linux-musl/bin/
-B/mnt/clfs/cross-tools/i486-linux-musl/lib/ -isystem
/mnt/clfs/cross-tools/i486-linux-musl/include -isystem
/mnt/clfs/cross-tools/i486-linux-musl/sys-include    -DHAVE_CONFIG_H
-I. -I../../../../gcc-6.2.0/libmpx/mpxrt -I..
-I../../../../gcc-6.2.0/libmpx/..  -fPIC -g -O2 -c -o
libmpx_la-mpxrt.lo `test -f 'mpxrt.c' || echo
'../../../../gcc-6.2.0/libmpx/mpxrt/'`mpxrt.c
libtool: compile:  /mnt/clfs/sources/gcc-build/./gcc/xgcc
-B/mnt/clfs/sources/gcc-build/./gcc/
-B/mnt/clfs/cross-tools/i486-linux-musl/bin/
-B/mnt/clfs/cross-tools/i486-linux-musl/lib/ -isystem
/mnt/clfs/cross-tools/i486-linux-musl/include -isystem
/mnt/clfs/cross-tools/i486-linux-musl/sys-include -DHAVE_CONFIG_H -I.
-I../../../../gcc-6.2.0/libmpx/mpxrt -I..
-I../../../../gcc-6.2.0/libmpx/.. -fPIC -g -O2 -c
../../../../gcc-6.2.0/libmpx/mpxrt/mpxrt.c  -fPIC -DPIC -o
.libs/libmpx_la-mpxrt.o
In file included from ../../../../gcc-6.2.0/libmpx/mpxrt/mpxrt.c:54:0:
../../../../gcc-6.2.0/libmpx/mpxrt/mpxrt.c: In function 'read_mpx_status_sig':
../../../../gcc-6.2.0/libmpx/mpxrt/mpxrt.h:52:42: error: invalid
application of 'sizeof' to incomplete type 'struct _libc_fpstate'
 #define XSAVE_OFFSET_IN_FPMEM    sizeof (struct _libc_fpstate)
                                          ^
../../../../gcc-6.2.0/libmpx/mpxrt/mpxrt.c:132:58: note: in expansion
of macro 'XSAVE_OFFSET_IN_FPMEM'
   uint8_t *regs = (uint8_t *)uctxt->uc_mcontext.fpregs + XSAVE_OFFSET_IN_FPMEM;
                                                          ^~~~~~~~~~~~~~~~~~~~~
Makefile:387: recipe for target 'libmpx_la-mpxrt.lo' failed
make[4]: *** [libmpx_la-mpxrt.lo] Error 1
make[4]: Leaving directory
'/mnt/clfs/sources/gcc-build/i486-linux-musl/libmpx/mpxrt'
Makefile:409: recipe for target 'all-recursive' failed
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory '/mnt/clfs/sources/gcc-build/i486-linux-musl/libmpx'
Makefile:300: recipe for target 'all' failed
make[2]: *** [all] Error 2
make[2]: Leaving directory '/mnt/clfs/sources/gcc-build/i486-linux-musl/libmpx'
Makefile:11448: recipe for target 'all-target-libmpx' failed
make[1]: *** [all-target-libmpx] Error 2
make[1]: Leaving directory '/mnt/clfs/sources/gcc-build'
Makefile:867: recipe for target 'all' failed
make: *** [all] Error 2

should I put --disable-libmpx on configure? (if I do it builds
successfully in my personal experience)

Do you have the same problem when building for i686-linux-musl?