Hi all,
Getting rather frustrated as I've been trying to build my first LFS
system for over a week now!
The instructions in the book are pretty straight forward, yet following
them to the letter has gotten me absolutely nowhere after countless retries.
At first I had weird permission problems at every turn because my
/etc/fstab was mounting my LFS partition with the noexec flag for some
ridiculous reason.
Then it was Glibc-2.28 refusing to build for god-only-knows what reason.
Now I seem to be past those issues after several complete restarts, but
make is
complaining about some undeclared identifiers in
libgcc/config/i386/cpuinfo.c.
So now I'm on chapter 5.10 of book version 8.3, trying to build the
second pass of GCC but I keep running into the same errors after 3
complete restarts. I can
get up to 5.9 without a hitch, but there is one major thing I don't
understand:
Is it imperative to delete $LFS/sources/gcc-8.2.0 after completing
chapter 5.8? Or should it be left there so that libstdc++-v3 doesn't
need to be recompiled?
If I delete it, I get roughly 1.5 hours into chapter 5.10 before I
encounter the same problem described here
<http://lists.linuxfromscratch.org/pipermail/lfs-support/2015-August/048881.html>:
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for x86_64-pc-linux-gnu-gcc... /mnt/lfs/sources/gcc-8.2.0/gcc/xgcc -B/mnt/lfs/sources/gcc-8.2.0/gcc/ -B/tools/x86_64-pc-linux-gnu/bin/ -B/tools/x86_64-pc-linux-gnu/lib/ -isystem /tools/x86_64-pc-linux-gnu/include -isystem /tools/x86_64-pc-linux-gnu/sys-include
checking for C compiler default output file name... a.out
checking whether the C compiler works... configure: error: in
`/mnt/lfs/sources/gcc-8.2.0/build/x86_64-pc-linux-gnu/libstdc++-v3':
configure: error: cannot run C compiled programs.
If you meant to cross compile, use `--host'.
See `config.log' for more details.
make[1]: *** [configure-target-libstdc++-v3] Error 1
make[1]: Leaving directory `/mnt/lfs/sources/gcc-8.2.0/build'
make: *** [all] Error 2//
If I don't delete '/mnt/minlinux/sources/gcc-8.2.0' after 5.8, then once
again I get roughly 1.5 hours into 5.10 before hitting the following:
Checking multilib configuration for libgcc...
make[2]: Entering directory
'/mnt/minlinux/sources/gcc-8.2.0/build/x86_64-lfs-linux-gnu/libgcc'
# If this is the top-level multilib, build all the other
# multilibs.
cc -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 -fpic -mlong-double-80
-DUSE_ELF_SYMVER -I. -I. -I../.././gcc -I../../../libgcc -I../../../libgcc/.
-I../../../libgcc/../gcc -I../../../libgcc/../include
-I../../../libgcc/config/libbid -DENABLE_DECIMAL_BID_FORMAT -DHAVE_CC_TLS
-DUSE_TLS -o cpuinfo.o -MT cpuinfo.o -MD -MP -MF cpuinfo.dep -c
../../../libgcc/config/i386/cpuinfo.c -fvisibility=hidden -DHIDE_EXPORTS
../../../libgcc/config/i386/cpuinfo.c: In function 'get_available_features':
../../../libgcc/config/i386/cpuinfo.c:353:14: error: 'bit_AVX512VBMI2'
undeclared (first use in this function); did you mean 'bit_AVX512VBMI'?
if (ecx & bit_AVX512VBMI2)
^~~~ VM~~~~~~~~~~~
bit_AVX512VBMI
../../../libgcc/config/i386/cpuinfo.c:353:14: note: each undeclared identifier
is reported only once for each function it appears in
../../../libgcc/config/i386/cpuinfo.c:355:14: error: 'bit_GFNI' undeclared
(first use in this function); did you mean 'bit_BMI'?
if (ecx & bit_GFNI)
^~~~~~~~
bit_BMI
../../../libgcc/config/i386/cpuinfo.c:357:14: error: 'bit_VPCLMULQDQ'
undeclared (first use in this function); did you mean 'bit_PCLMUL'?
if (ecx & bit_VPCLMULQDQ)
^~~~~~~~~~~~~~
bit_PCLMUL
../../../libgcc/config/i386/cpuinfo.c:359:14: error: 'bit_AVX512VNNI'
undeclared (first use in this function); did you mean 'bit_AVX512VBMI'?
if (ecx & bit_AVX512VNNI)
^~~~~~~~~~~~~~
bit_AVX512VBMI
../../../libgcc/config/i386/cpuinfo.c:361:14: error: 'bit_AVX512BITALG'
undeclared (first use in this function); did you mean 'bit_AVX5124FMAPS'?
if (ecx & bit_AVX512BITALG)
^~~~~~~~~~~~~~~~
bit_AVX5124FMAPS
../../../libgcc/shared-object.mk:14: recipe for target 'cpuinfo.o' failed
make[2]: *** [cpuinfo.o] Error 1
make[2]: Leaving directory
'/mnt/minlinux/sources/gcc-8.2.0/build/x86_64-lfs-linux-gnu/libgcc'
Makefile:14359: recipe for target 'all-target-libgcc' failed
make[1]: *** [all-target-libgcc] Error 2
make[1]: Leaving directory '/mnt/minlinux/sources/gcc-8.2.0/build'
Makefile:911: recipe for target 'all' failed
make: *** [all] Error 2
So what the hell am I doing wrong?! MTIA :-)
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