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D21101.diff
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D21101.diff

Index: head/share/mk/bsd.lib.mk
===================================================================
--- head/share/mk/bsd.lib.mk
+++ head/share/mk/bsd.lib.mk
@@ -3,6 +3,8 @@
#
.include <bsd.init.mk>
+.include <bsd.compiler.mk>
+.include <bsd.linker.mk>
.if defined(LIB_CXX) || defined(SHLIB_CXX)
_LD= ${CXX}
@@ -74,9 +76,13 @@
LDFLAGS+= -Wl,-znow
.endif
.if ${MK_RETPOLINE} != "no"
+.if ${COMPILER_FEATURES:Mretpoline} && ${LINKER_FEATURES:Mretpoline}
CFLAGS+= -mretpoline
CXXFLAGS+= -mretpoline
LDFLAGS+= -Wl,-zretpolineplt
+.else
+.warning Retpoline requested but not supported by compiler or linker
+.endif
.endif
.if ${MK_DEBUG_FILES} != "no" && empty(DEBUG_FLAGS:M-g) && \
Index: head/share/mk/bsd.prog.mk
===================================================================
--- head/share/mk/bsd.prog.mk
+++ head/share/mk/bsd.prog.mk
@@ -3,6 +3,7 @@
.include <bsd.init.mk>
.include <bsd.compiler.mk>
+.include <bsd.linker.mk>
.SUFFIXES: .out .o .bc .c .cc .cpp .cxx .C .m .y .l .ll .ln .s .S .asm
@@ -44,11 +45,15 @@
LDFLAGS+= -pie
.endif
.if ${MK_RETPOLINE} != "no"
+.if ${COMPILER_FEATURES:Mretpoline} && ${LINKER_FEATURES:Mretpoline}
CFLAGS+= -mretpoline
CXXFLAGS+= -mretpoline
# retpolineplt is broken with static linking (PR 233336)
.if !defined(NO_SHARED) || ${NO_SHARED:tl} == "no"
LDFLAGS+= -Wl,-zretpolineplt
+.endif
+.else
+.warning Retpoline requested but not supported by compiler or linker
.endif
.endif

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