libvirt 5.6.0 Compilation Fails Occasionally

Symptom

When you compile libvirt 5.6.0 based on (Optional) Upgrading libvirt in the KVM Installation Guide, there is a probability (62.5%) that the compilation fails.

make[3]: Leaving directory '/root/rpmbuild/BUILD/libvirt-5.6.0/src'
make[2]: *** [all] Error 2
make[2]: Leaving directory '/root/rpmbuild/BUILD/libvirt-5.6.0/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/root/rpmbuild/BUILD/libvirt-5.6.0'
make: *** [all] Error 2
error: Bad exit status from /var/tmp/tmp-tmp.5eNem7 (%build)

RPM build errors:
Bad exit status from /var/tmp/tmp-tmp.5eNem7 (%build)

Locate the line where the problem is prompted. One of the prompt information is found:

• Prompt 1:

  gcc: error: ../src/libvirt_probes.o.dtrace-temp.c: No such file or directory
  gcc: fatal error: no input files
  compilation terminated.
  "gcc ../src/libvirt_probes.o.dtrace-temp.c" failed

• Prompt 2:

  Traceback (most recent call last):
  File "usr/bin/dtrace", line 445, in <module>
  sys. exit (main())
  File "usr/bin/dtrace", line 432, in main
  os.remove (fname)
  OSError: [Errno 2] No such file or directory: '../src/libvirt_probes.o.dtrace-temp.c'

Both of them are caused by the failure to find a certain source code file.

Key Process and Cause Analysis

The Makefile of libvirt-5.6.0 has a defect. As a result, a bug occurs during concurrent compilation. It is caused by the src/remote/Makefile.inc.am file.

Conclusion and Solution

1. Modify the /bin/dtrace file.

   vim /bin/dtrace

   In line 308, locate keep_temps = False, and change it to the following information:

   keep_temps = True

   

2. Recompile libvirt to generate the RPM package and no error is reported. For details, see (Optional) Upgrading libvirt.