[Bug bootstrap/96735] New: --enable-maintainer-mode broken

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96735

            Bug ID: 96735
           Summary: --enable-maintainer-mode broken
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: tkoenig at gcc dot gnu.org
  Target Milestone: ---

Created attachment 49095
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49095&action=edit
config.log from failed attempt

Current master is

commit b46584d7836bee011facdf946fd7241c748d66f0 (HEAD -> zfkts_branch,
origin/master, origin/HEAD)
Author: Alex Coplan <alex.coplan@arm.com>
Date:   2020-08-21 15:26:11 +0200

configure command is

../trunk/gcc/configure --prefix=$HOME --enable-languages=c,c++,fortran
--enable-maintainer-mode

Output is

$ make
TARGET_CPU_DEFAULT="" \
HEADERS="auto-host.h ansidecl.h" DEFINES="" \
/bin/sh ../trunk/gcc/mkconfig.sh config.h
TARGET_CPU_DEFAULT="" \
HEADERS="options.h insn-constants.h config/vxworks-dummy.h
config/i386/biarch64.h config/i386/i386.h config/i386/unix.h config/i386/att.h
config/dbxelf.h config/elfos.h config/gnu-user.h config/glibc-stdint.h
config/i386/x86-64.h config/i386/gnu-user-common.h config/i386/gnu-user64.h
config/linux.h config/linux-android.h config/i386/linux-common.h
config/i386/linux64.h config/initfini-array.h defaults.h" DEFINES="LIBC_GLIBC=1
LIBC_UCLIBC=2 LIBC_BIONIC=3 LIBC_MUSL=4 DEFAULT_LIBC=LIBC_GLIBC
ANDROID_DEFAULT=0" \
/bin/sh ../trunk/gcc/mkconfig.sh tm.h
TARGET_CPU_DEFAULT="" \
HEADERS="config/i386/i386-protos.h config/linux-protos.h tm-preds.h" DEFINES=""
\
/bin/sh ../trunk/gcc/mkconfig.sh tm_p.h
TARGET_CPU_DEFAULT="" \
HEADERS="auto-host.h ansidecl.h" DEFINES="" \
/bin/sh ../trunk/gcc/mkconfig.sh bconfig.h
g++ -c   -g   -DIN_GCC     -fno-exceptions -fno-rtti
-fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wno-error=format-diag -Wmissing-format-attribute
-Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros
-Wno-overlength-strings -fno-common  -DHAVE_CONFIG_H  -DGENERATOR_FILE -fno-PIE
-I. -Ibuild -I../trunk/gcc -I../trunk/gcc/build -I../trunk/gcc/../include 
-I../trunk/gcc/../libcpp/include  \
        -o build/genmodes.o ../trunk/gcc/genmodes.c
make: *** No rule to make target
'../build-x86_64-pc-linux-gnu/libiberty/libiberty.a', needed by
'build/genmodes'.  Stop.