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-rw-r--r--tools/perf/jvmti/Makefile6
1 files changed, 5 insertions, 1 deletions
diff --git a/tools/perf/jvmti/Makefile b/tools/perf/jvmti/Makefile
index 5968f8332a28..0277a64b391b 100644
--- a/tools/perf/jvmti/Makefile
+++ b/tools/perf/jvmti/Makefile
@@ -35,8 +35,12 @@ SOLIBEXT=so
# The following works at least on fedora 23, you may need the next
# line for other distros.
+ifeq (,$(wildcard /usr/sbin/update-java-alternatives))
JDIR=$(shell alternatives --display java | tail -1 | cut -d' ' -f 5 | sed 's%/jre/bin/java.%%g')
-#JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | cut -d ' ' -f 3)
+else
+JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | cut -d ' ' -f 3)
+endif
+
# -lrt required in 32-bit mode for clock_gettime()
LIBS=-lelf -lrt
INCDIR=-I $(JDIR)/include -I $(JDIR)/include/linux