install: Fix failed to create symbolic link hwlatdetect file exists
The following build error can occur if you have done a previous make install
if test -n "/usr/lib/python2.7/site-packages" ; then \
install -D -m 755 src/hwlatdetect/hwlatdetect.py /usr/lib/python2.7/site-packages/hwlatdetect.py ; \
ln -s /usr/lib/python2.7/site-packages/hwlatdetect.py "/usr/local/bin/hwlatdetect" ; \
fi
ln: failed to create symbolic link `/usr/local/bin/hwlatdetect': File exists
make: *** [install] Error 1
I initially wanted to fix the error by removing the symbolic link, with rm -rf
but Andrew Burgess pointed out that you can just use the
ln's -f (force) flag. I like that solution better.
Suggested-by: Andrew Burgess <aab@cichlid.com>
Signed-off-by: John Kacur <jkacur@redhat.com>
diff --git a/Makefile b/Makefile
index ff697ca..a143545 100644
--- a/Makefile
+++ b/Makefile
@@ -125,7 +125,7 @@
cp $(TARGETS) "$(DESTDIR)$(bindir)"
if test -n "$(PYLIB)" ; then \
install -D -m 755 src/hwlatdetect/hwlatdetect.py $(DESTDIR)$(PYLIB)/hwlatdetect.py ; \
- ln -s $(PYLIB)/hwlatdetect.py "$(DESTDIR)$(bindir)/hwlatdetect" ; \
+ ln -sf $(PYLIB)/hwlatdetect.py "$(DESTDIR)$(bindir)/hwlatdetect" ; \
fi
install -D -m 644 src/backfire/backfire.c "$(DESTDIR)$(srcdir)/backfire/backfire.c"
install -m 644 src/backfire/Makefile "$(DESTDIR)$(srcdir)/backfire/Makefile"