Hello everyone,
I'm building LFS 10.0 on a fully updated Manjaro Linux on an x86_64 for
x86_64.
When I compile M4 (chapter 6.2), I get two errors:
- gcc complains about a void function ("fault_handler") being declared
as "pure" in line 146 of m4.c
- gcc complains about the flag -Wabi which is deprecated and doesn't do
anything
(see the attached log file)
I was able to circumvent the problems by setting the environment variable
CFLAGS=" -fpermissive -Wabi=11 " before ./configure, but I think that
these are infact bugs
in M4, so gcc is rightfully complaining.
It seems that an older gcc version had failed if that function was NOT
declared "pure"
and the M4 team has also discussed this topic in july 2020, see
https://lists.gnu.org/archive/cgi-bin/namazu.cgi?query=fault_handler&submit=Search%21&idxname=bug-m4&max=20&result=normal&sort=score
they had also decided to make the function NOT "pure" (because
fault_handler has sideeffects
and should therefore not be pure). This was implemented by commit
74915227e245c2f93d0db1ff3c53544d8f594dfa in the m4 git repository, but
the declaration
is still present in the .tar.xz from 2016 on http://ftp.gnu.org/gnu/m4/
that is used in LFS.
I verified that LFS and LFS_TGT are set and that I'm compiling with
x86_64-lfs-linux-gnu-gcc.
Everything before M4 was built as regular user.
Kind regards
Viktor
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checking whether UINT64_MAX == ULONG_MAX... yes
checking where to find the exponent in a 'double'... (cached) word 1 bit 20
checking where to find the exponent in a 'float'... (cached) word 0 bit 23
checking where to find the exponent in a 'long double'... unknown
checking whether link obeys POSIX... guessing yes
checking for setlocale... yes
checking for uselocale... yes
checking for getlocalename_l... no
checking for a traditional french locale... (cached) none
checking for a french Unicode locale... (cached) none
checking for a traditional japanese locale... (cached) none
checking for a transitional chinese locale... (cached) none
checking for a french Unicode locale... (cached) none
checking for mmap... (cached) yes
checking for MAP_ANONYMOUS... yes
checking for mmap... (cached) yes
checking for MAP_ANONYMOUS... yes
checking for a traditional french locale... (cached) none
checking for a french Unicode locale... (cached) none
checking for opendir... yes
checking for putenv compatible with GNU and SVID... guessing yes
checking for mmap... (cached) yes
checking for MAP_ANONYMOUS... yes
checking for mmap... (cached) yes
checking for MAP_ANONYMOUS... yes
checking for readdir... yes
checking whether setenv validates arguments... guessing yes
checking for a traditional french locale... (cached) none
checking for a french Unicode locale... (cached) none
checking for a traditional japanese locale... (cached) none
checking for a transitional chinese locale... (cached) none
checking whether sleep is declared... yes
checking for working sleep... guessing yes
checking for working stdalign.h... yes
checking for mmap... (cached) yes
checking for MAP_ANONYMOUS... yes
checking for mmap... (cached) yes
checking for MAP_ANONYMOUS... yes
checking whether symlink handles trailing slash correctly... guessing yes
checking for unsetenv... yes
checking for unsetenv() return type... int
checking whether unsetenv obeys POSIX... guessing yes
checking for a traditional french locale... (cached) none
checking for a french Unicode locale... (cached) none
checking for a traditional japanese locale... (cached) none
checking for a transitional chinese locale... (cached) none
checking whether wctob works... guessing yes
checking whether wctob is declared... yes
checking whether an open file can be renamed... guessing no
checking if changeword is wanted... no
checking which shell to use for syscmd... /bin/sh
checking if malloc debugging is wanted... no
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating doc/Makefile
config.status: creating lib/Makefile
config.status: creating src/Makefile
config.status: creating tests/Makefile
config.status: creating checks/Makefile
config.status: creating examples/Makefile
config.status: creating lib/config.h
config.status: executing depfiles commands
config.status: executing stamp-h commands
echo 1.4.18 > .version-t && mv .version-t .version
make all-recursive
make[1]: Entering directory '/mnt/lfs/sources/m4-1.4.18'
Making all in .
make[2]: Entering directory '/mnt/lfs/sources/m4-1.4.18'
make[2]: Nothing to be done for 'all-am'.
make[2]: Leaving directory '/mnt/lfs/sources/m4-1.4.18'
Making all in examples
make[2]: Entering directory '/mnt/lfs/sources/m4-1.4.18/examples'
make[2]: Nothing to be done for 'all'.
make[2]: Leaving directory '/mnt/lfs/sources/m4-1.4.18/examples'
Making all in lib
make[2]: Entering directory '/mnt/lfs/sources/m4-1.4.18/lib'
GEN alloca.h
GEN configmake.h
GEN c++defs.h
GEN arg-nonnull.h
GEN warn-on-use.h
GEN fcntl.h
GEN getopt.h
GEN langinfo.h
GEN limits.h
GEN locale.h
GEN math.h
GEN signal.h
GEN unused-parameter.h
GEN spawn.h
GEN stdio.h
GEN stdlib.h
GEN string.h
GEN sys/stat.h
GEN sys/time.h
GEN sys/types.h
GEN sys/wait.h
GEN time.h
GEN unistd.h
GEN wchar.h
GEN wctype.h
make all-am
make[3]: Entering directory '/mnt/lfs/sources/m4-1.4.18/lib'
CC gl_avltree_oset.o
CC binary-io.o
CC c-ctype.o
CC c-stack.o
CC c-strcasecmp.o
CC c-strncasecmp.o
CC clean-temp.o
CC cloexec.o
CC close-stream.o
CC closein.o
CC closeout.o
CC dirname.o
CC basename.o
CC dirname-lgpl.o
CC basename-lgpl.o
CC stripslash.o
CC execute.o
CC exitfail.o
CC fatal-signal.o
CC fd-hook.o
CC fd-safer-flag.o
CC dup-safer-flag.o
CC filenamecat.o
CC filenamecat-lgpl.o
CC fopen-safer.o
CC freading.o
CC getprogname.o
CC hard-locale.o
CC gl_linkedhash_list.o
CC gl_list.o
CC localcharset.o
CC glthread/lock.o
CC malloca.o
CC math.o
CC memchr2.o
CC gl_oset.o
CC pipe2.o
CC pipe2-safer.o
CC printf-frexp.o
CC printf-frexpl.o
CC progname.o
CC quotearg.o
CC sig-handler.o
CC spawn-pipe.o
CC mkstemp-safer.o
CC tempname.o
CC glthread/threadlib.o
CC glthread/tls.o
CC tmpdir.o
CC unistd.o
CC dup-safer.o
CC fd-safer.o
CC pipe-safer.o
CC verror.o
CC version-etc.o
CC version-etc-fsf.o
CC wait-process.o
CC wctype-h.o
CC xmalloc.o
CC xalloc-die.o
CC gl_xlist.o
CC xmalloca.o
CC gl_xoset.o
CC xprintf.o
CC xsize.o
CC xstrndup.o
CC xvasprintf.o
CC xasprintf.o
CC asnprintf.o
CC asprintf.o
CC fclose.o
CC fcntl.o
CC fflush.o
CC fpurge.o
CC freadahead.o
CC fseek.o
CC fseeko.o
CC getopt.o
CC getopt1.o
CC mbrtowc.o
CC memchr.o
CC obstack.o
CC printf-args.o
CC printf-parse.o
CC regex.o
CC strstr.o
CC vasnprintf.o
CC vasprintf.o
AR libm4.a
GEN charset.alias
GEN ref-add.sed
GEN ref-del.sed
make[3]: Leaving directory '/mnt/lfs/sources/m4-1.4.18/lib'
make[2]: Leaving directory '/mnt/lfs/sources/m4-1.4.18/lib'
Making all in src
make[2]: Entering directory '/mnt/lfs/sources/m4-1.4.18/src'
CC m4.o
x86_64-lfs-linux-gnu-gcc: warning: switch '-Wchkp' is no longer supported
cc1: error: '-Wabi' won't warn about anything [-Werror=abi]
cc1: note: '-Wabi' warns about differences from the most up-to-date ABI, which
is also used by default
cc1: note: use e.g. '-Wabi=11' to warn about changes from GCC 7
m4.c:146:1: error: 'pure' attribute on function returning 'void'
[-Werror=attributes]
146 | {
| ^
cc1: all warnings being treated as errors
make[2]: *** [Makefile:1576: m4.o] Error 1
make[2]: Leaving directory '/mnt/lfs/sources/m4-1.4.18/src'
make[1]: *** [Makefile:1572: all-recursive] Error 1
make[1]: Leaving directory '/mnt/lfs/sources/m4-1.4.18'
make: *** [Makefile:1528: all] Fehler 2
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