diff -Naur openjdk-7.271_p01/hotspot/make/linux/makefiles/defs.make openjdk-7.271_p01-copy/hotspot/make/linux/makefiles/defs.make
--- openjdk-7.271_p01/hotspot/make/linux/makefiles/defs.make	2020-10-15 21:59:37.863954981 -0400
+++ openjdk-7.271_p01-copy/hotspot/make/linux/makefiles/defs.make	2020-10-15 22:23:07.511947672 -0400
@@ -298,6 +298,9 @@
 
 # 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) \
@@ -311,6 +314,10 @@
     ADD_SA_BINARIES/sparc += $(EXPORT_JRE_LIB_ARCH_DIR)/libsaproc.debuginfo
   endif
 endif
+else
+ADD_SA_BINARIES/x86   =
+ADD_SA_BINARIES/sparc =
+endif
 ADD_SA_BINARIES/ppc   = 
 ADD_SA_BINARIES/ppc64 = 
 ADD_SA_BINARIES/ia64  = 
diff -Naur openjdk-7.271_p01/hotspot/make/linux/makefiles/sa.make openjdk-7.271_p01-copy/hotspot/make/linux/makefiles/sa.make
--- openjdk-7.271_p01/hotspot/make/linux/makefiles/sa.make	2020-10-15 21:59:37.863954981 -0400
+++ openjdk-7.271_p01-copy/hotspot/make/linux/makefiles/sa.make	2020-10-15 22:24:00.083947400 -0400
@@ -59,9 +59,12 @@
 
 # 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
diff -Naur openjdk-7.271_p01/hotspot/make/linux/makefiles/saproc.make openjdk-7.271_p01-copy/hotspot/make/linux/makefiles/saproc.make
--- openjdk-7.271_p01/hotspot/make/linux/makefiles/saproc.make	2020-10-15 21:59:37.863954981 -0400
+++ openjdk-7.271_p01-copy/hotspot/make/linux/makefiles/saproc.make	2020-10-15 22:24:38.647947200 -0400
@@ -65,12 +65,15 @@
 
 # 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
 
 ifneq ($(ALT_SASRCDIR),)
 ALT_SAINCDIR=-I$(ALT_SASRCDIR)