--- openjdk.orig/hotspot/make/linux/makefiles/defs.make
+++ openjdk/hotspot/make/linux/makefiles/defs.make
@@ -285,6 +285,9 @@
 
 # Serviceability Binaries
 # No SA Support for PPC, IA64, ARM or zero
+# or if thread_db.h missing (musl)
+
+ifneq ($(wildcard /usr/include/thread_db.h),)
 ADD_SA_BINARIES/x86   = $(EXPORT_JRE_LIB_ARCH_DIR)/libsaproc.$(LIBRARY_SUFFIX) \
                         $(EXPORT_LIB_DIR)/sa-jdi.jar 
 ADD_SA_BINARIES/sparc = $(EXPORT_JRE_LIB_ARCH_DIR)/libsaproc.$(LIBRARY_SUFFIX) \
@@ -301,6 +304,10 @@
       endif
     endif
   endif
+endif
+else
+ADD_SA_BINARIES/x86   =
+ADD_SA_BINARIES/sparc =
 endif
 ADD_SA_BINARIES/ppc   = 
 ADD_SA_BINARIES/ia64  = 
--- openjdk.orig/hotspot/make/linux/makefiles/sa.make
+++ openjdk/hotspot/make/linux/makefiles/sa.make
@@ -59,9 +59,11 @@
 
 # if $(AGENT_DIR) does not exist, we don't build SA
 # also, we don't build SA on Itanium or zero.
+# check for thread_db.h too (musl does not have it).
 
 all: 
-	if [ -d $(AGENT_DIR) -a "$(SRCARCH)" != "ia64" \
+	if [ -d $(AGENT_DIR) -a -f /usr/include/thread_db.h \
+             -a "$(SRCARCH)" != "ia64" \
              -a "$(SRCARCH)" != "zero" ] ; then \
 	   $(MAKE) -f sa.make $(GENERATED)/sa-jdi.jar; \
 	fi
--- openjdk.orig/hotspot/make/linux/makefiles/saproc.make
+++ openjdk/hotspot/make/linux/makefiles/saproc.make
@@ -65,10 +65,13 @@
 
 # if $(AGENT_DIR) does not exist, we don't build SA
 # also, we don't build SA on Itanium or zero.
+# check for thread_db.h too (musl does not have it).
 
+ifneq ($(wildcard /usr/include/thread_db.h),)
 ifneq ($(wildcard $(AGENT_DIR)),)
 ifneq ($(filter-out ia64 zero,$(SRCARCH)),)
   BUILDLIBSAPROC = $(LIBSAPROC)
+endif
 endif
 endif