[Qemu-devel] [Bug 1030104] [NEW] Parallel build doesn't work after "make clean"

[Igor Mitsyanko]

Public bug reported:

After running "make clean" qemu won't build with -j option.
When I run "./configure && make clean" and then make -j5, following errors 
occur:
  GEN   config-host.h
  GEN   trace.h
  GEN   qemu-options.def
  GEN   qmp-commands.h
  GEN   qapi-types.h
  GEN   qapi-visit.h
  GEN   tests/test-qapi-types.h
  GEN   tests/test-qapi-visit.h
  GEN   tests/test-qmp-commands.h
  GEN   qapi-generated/qga-qapi-types.h
  GEN   qapi-generated/qga-qapi-visit.h
  GEN   qapi-generated/qga-qmp-commands.h
  CC    osdep.o
  CC    qemu-thread-posix.o
cc1: error: qapi-generated: No such file or directory [-Werror]
cc1: all warnings being treated as errors

make: *** [qemu-thread-posix.o] Error 1
make: *** Waiting for unfinished jobs....
cc1: error: qapi-generated: No such file or directory [-Werror]
cc1: all warnings being treated as errors

make: *** [osdep.o] Error 1

If you run "make -j5" once again after this, build continues succesfully
because  "qapi-generated" directory already exists.

** Affects: qemu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1030104

Title:
  Parallel build doesn't work after "make clean"

Status in QEMU:
  New

Bug description:
  After running "make clean" qemu won't build with -j option.
  When I run "./configure && make clean" and then make -j5, following errors 
occur:
    GEN   config-host.h
    GEN   trace.h
    GEN   qemu-options.def
    GEN   qmp-commands.h
    GEN   qapi-types.h
    GEN   qapi-visit.h
    GEN   tests/test-qapi-types.h
    GEN   tests/test-qapi-visit.h
    GEN   tests/test-qmp-commands.h
    GEN   qapi-generated/qga-qapi-types.h
    GEN   qapi-generated/qga-qapi-visit.h
    GEN   qapi-generated/qga-qmp-commands.h
    CC    osdep.o
    CC    qemu-thread-posix.o
  cc1: error: qapi-generated: No such file or directory [-Werror]
  cc1: all warnings being treated as errors

  make: *** [qemu-thread-posix.o] Error 1
  make: *** Waiting for unfinished jobs....
  cc1: error: qapi-generated: No such file or directory [-Werror]
  cc1: all warnings being treated as errors

  make: *** [osdep.o] Error 1

  If you run "make -j5" once again after this, build continues
  succesfully because  "qapi-generated" directory already exists.

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