Index: share/mk/bsd.compiler.mk
===================================================================
--- share/mk/bsd.compiler.mk
+++ share/mk/bsd.compiler.mk
@@ -224,7 +224,7 @@
 ${X_}COMPILER_FEATURES+=	c++17
 .endif
 .if ${${X_}COMPILER_TYPE} == "clang"
-${X_}COMPILER_FEATURES+=	retpoline init-all
+${X_}COMPILER_FEATURES+=	compressed-debug retpoline init-all
 .endif
 .if ${${X_}COMPILER_TYPE} == "clang" && ${${X_}COMPILER_VERSION} >= 100000 || \
 	(${${X_}COMPILER_TYPE} == "gcc" && ${${X_}COMPILER_VERSION} >= 80100)
Index: share/mk/bsd.lib.mk
===================================================================
--- share/mk/bsd.lib.mk
+++ share/mk/bsd.lib.mk
@@ -108,8 +108,13 @@
 
 .if ${MK_DEBUG_FILES} != "no" && empty(DEBUG_FLAGS:M-g) && \
     empty(DEBUG_FLAGS:M-gdwarf*)
+.if !${COMPILER_FEATURES:Mcompressed-debug}
+CFLAGS+= ${DEBUG_FILES_CFLAGS:N-gz*}
+CXXFLAGS+= ${DEBUG_FILES_CFLAGS:N-gz*}
+.else
 CFLAGS+= ${DEBUG_FILES_CFLAGS}
 CXXFLAGS+= ${DEBUG_FILES_CFLAGS}
+.endif
 CTFFLAGS+= -g
 .endif
 
Index: share/mk/bsd.prog.mk
===================================================================
--- share/mk/bsd.prog.mk
+++ share/mk/bsd.prog.mk
@@ -90,7 +90,11 @@
 .else
 .if ${MK_DEBUG_FILES} != "no" && empty(DEBUG_FLAGS:M-g) && \
     empty(DEBUG_FLAGS:M-gdwarf-*)
+.if !${COMPILER_FEATURES:Mcompressed-debug}
+CFLAGS+= ${DEBUG_FILES_CFLAGS:N-gz*}
+.else
 CFLAGS+= ${DEBUG_FILES_CFLAGS}
+.endif
 CTFFLAGS+= -g
 .endif
 .endif