3 files changed, 28 insertions, 12 deletions

diff --git a/src/regress/lib/libcrypto/c2sp/Makefile b/src/regress/lib/libcrypto/c2sp/Makefile
index d16d06975b..062d83e99c 100644
--- a/src/regress/lib/libcrypto/c2sp/Makefile
+++ b/src/regress/lib/libcrypto/c2sp/Makefile
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.5 2025/04/27 08:51:24 tb Exp $
+# $OpenBSD: Makefile,v 1.6 2025/07/09 05:04:35 tb Exp $
 
 C2SP_TESTVECTORS = /usr/local/share/c2sp-testvectors/
 
@@ -13,7 +13,7 @@ PROGS += cctv
 SRCS_cctv =
 
 cctv: cctv.go
-        go build -o $@ ${.CURDIR}/cctv.go
+        env GOCACHE=${.OBJDIR}/go-build go build -o $@ ${.CURDIR}/cctv.go
 
 OSSL_LIB =      /usr/local/lib/eopenssl
 OSSL_INC =      /usr/local/include/eopenssl
@@ -29,10 +29,17 @@ CGO_LDFLAGS_$V += 	-L${OSSL_LIB}$V
 
 cctv-openssl$V: cctv.go
         env CGO_CFLAGS="${CGO_CFLAGS_$V}" CGO_LDFLAGS="${CGO_LDFLAGS_$V}" \
+            GOCACHE=${.OBJDIR}/go-build \
             go build -o $@ ${.CURDIR}/cctv.go
 .  endif
 . endfor
 
+REGRESS_CLEANUP =       clean-go-cache
+
+clean-go-cache:
+        env GOCACHE=${.OBJDIR}/go-build go clean -cache
+        rm -rf ${.OBJDIR}/go-build
+
 .endif
 
 .include <bsd.regress.mk>
diff --git a/src/regress/lib/libcrypto/certs/Makefile b/src/regress/lib/libcrypto/certs/Makefile
index 621c60907f..f7ba9fcad8 100644
--- a/src/regress/lib/libcrypto/certs/Makefile
+++ b/src/regress/lib/libcrypto/certs/Makefile
@@ -1,21 +1,24 @@
-#       $OpenBSD: Makefile,v 1.1 2020/07/14 18:27:28 jsing Exp $
+#       $OpenBSD: Makefile,v 1.2 2025/07/09 05:04:35 tb Exp $
 
-.if ! (make(clean) || make(cleandir) || make(obj))
-GO_VERSION != sh -c "(go version) 2>/dev/null || true"
-.endif
-
-.if empty(GO_VERSION)
+.if !exists(/usr/local/bin/go)
 regress:
         @echo package go is required for this regress
         @echo SKIPPED
-.endif
+.else
 
 REGRESS_TARGETS=regress-go-verify
+REGRESS_CLEANUP=clean-go-cache
 
 certs:
         cd ${.CURDIR} && sh ./make-certs.sh
 
 regress-go-verify:
-        cd ${.CURDIR} && go test -test.v .
+        cd ${.CURDIR} && env GOCACHE=${.OBJDIR}/go-build go test -test.v .
+
+clean-go-cache:
+        env GOCACHE=${.OBJDIR}/go-build go clean -cache
+        rm -rf ${.OBJDIR}/go-build
+
+.endif
 
 .include <bsd.regress.mk>
diff --git a/src/regress/lib/libcrypto/wycheproof/Makefile b/src/regress/lib/libcrypto/wycheproof/Makefile
index f2f7910b5b..a68a270580 100644
--- a/src/regress/lib/libcrypto/wycheproof/Makefile
+++ b/src/regress/lib/libcrypto/wycheproof/Makefile
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.9 2023/07/08 19:41:07 tb Exp $
+# $OpenBSD: Makefile,v 1.10 2025/07/09 05:04:35 tb Exp $
 
 WYCHEPROOF_TESTVECTORS = /usr/local/share/wycheproof/testvectors/
 
@@ -18,11 +18,17 @@ REGRESS_TARGETS += regress-wycheproof
 CLEANFILES +=   wycheproof
 
 wycheproof: wycheproof.go
-        go build -o wycheproof ${.CURDIR}/wycheproof.go
+        env GOCACHE=${.OBJDIR}/go-build go build -o wycheproof ${.CURDIR}/wycheproof.go
 
 regress-wycheproof: wycheproof
         ./wycheproof
 
+REGRESS_CLEANUP =       clean-go-cache
+
+clean-go-cache:
+        env GOCACHE=${.OBJDIR}/go-build go clean -cache
+        rm -rf ${.OBJDIR}/go-build
+
 . endif
 
 PROGS += wycheproof-primes