diff --git a/archivers/zstd/patches/patch-Makefile b/archivers/zstd/patches/patch-Makefile
new file mode 100644
index 000000000..ffe20688e
--- /dev/null
+++ b/archivers/zstd/patches/patch-Makefile
@@ -0,0 +1,12 @@
+Index: Makefile
+--- Makefile.orig
++++ Makefile
+@@ -151,7 +151,7 @@ clean:
+ #------------------------------------------------------------------------------
+ # make install is validated only for Linux, macOS, Hurd and some BSD targets
+ #------------------------------------------------------------------------------
+-ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD DragonFly NetBSD MSYS_NT Haiku AIX))
++ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD SecBSD FreeBSD DragonFly NetBSD MSYS_NT Haiku AIX))
+ 
+ HOST_OS = POSIX
+ 
diff --git a/archivers/zstd/patches/patch-build_meson_tests_meson_build b/archivers/zstd/patches/patch-build_meson_tests_meson_build
new file mode 100644
index 000000000..e46d16f50
--- /dev/null
+++ b/archivers/zstd/patches/patch-build_meson_tests_meson_build
@@ -0,0 +1,12 @@
+Index: build/meson/tests/meson.build
+--- build/meson/tests/meson.build.orig
++++ build/meson/tests/meson.build
+@@ -11,7 +11,7 @@
+ zstd_rootdir = '../../..'
+ 
+ tests_supported_oses = [os_linux, 'gnu/kfreebsd', os_darwin, 'gnu', 'openbsd',
+-  os_freebsd, 'netbsd', 'dragonfly', os_sun]
++  os_freebsd, 'netbsd', 'dragonfly', 'secbsd', os_sun]
+ 
+ # =============================================================================
+ # Test flags
diff --git a/archivers/zstd/patches/patch-lib_Makefile b/archivers/zstd/patches/patch-lib_Makefile
new file mode 100644
index 000000000..a6fa4aab4
--- /dev/null
+++ b/archivers/zstd/patches/patch-lib_Makefile
@@ -0,0 +1,12 @@
+Index: lib/Makefile
+--- lib/Makefile.orig
++++ lib/Makefile
+@@ -249,7 +249,7 @@ clean:
+ #-----------------------------------------------------------------------------
+ # make install is validated only for below listed environments
+ #-----------------------------------------------------------------------------
+-ifneq (,$(filter $(UNAME),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS Haiku AIX))
++ifneq (,$(filter $(UNAME),Linux Darwin GNU/kFreeBSD GNU OpenBSD SecBSD FreeBSD NetBSD DragonFly SunOS Haiku AIX))
+ 
+ lib: libzstd.pc
+ 
diff --git a/archivers/zstd/patches/patch-lib_libzstd_mk b/archivers/zstd/patches/patch-lib_libzstd_mk
index c2272b3b3..f21621168 100644
--- a/archivers/zstd/patches/patch-lib_libzstd_mk
+++ b/archivers/zstd/patches/patch-lib_libzstd_mk
@@ -12,3 +12,12 @@ Index: lib/libzstd.mk
              -Wredundant-decls -Wmissing-prototypes -Wc++-compat
  CFLAGS   += $(DEBUGFLAGS) $(MOREFLAGS)
  ASFLAGS  += $(DEBUGFLAGS) $(MOREFLAGS) $(CFLAGS)
+@@ -197,6 +197,8 @@ else ifeq ($(UNAME), FreeBSD)
+ else ifeq ($(UNAME), NetBSD)
+   HASH ?= md5 -n
+ else ifeq ($(UNAME), OpenBSD)
++  HASH ?= md5
++else ifeq ($(UNAME), SecBSD)
+   HASH ?= md5
+ endif
+ HASH ?= md5sum
diff --git a/archivers/zstd/patches/patch-programs_Makefile b/archivers/zstd/patches/patch-programs_Makefile
new file mode 100644
index 000000000..049738960
--- /dev/null
+++ b/archivers/zstd/patches/patch-programs_Makefile
@@ -0,0 +1,21 @@
+Index: programs/Makefile
+--- programs/Makefile.orig
++++ programs/Makefile
+@@ -346,7 +346,7 @@ include $(wildcard $(DEPFILES))
+ #-----------------------------------------------------------------------------
+ # make install is validated only for Linux, macOS, BSD, Hurd and Solaris targets
+ #-----------------------------------------------------------------------------
+-ifneq (,$(filter $(UNAME),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS Haiku AIX))
++ifneq (,$(filter $(UNAME),Linux Darwin GNU/kFreeBSD GNU OpenBSD SecBSD FreeBSD NetBSD DragonFly SunOS Haiku AIX))
+ 
+ HAVE_COLORNEVER = $(shell echo a | egrep --color=never a > /dev/null 2> /dev/null && echo 1 || echo 0)
+ EGREP_OPTIONS ?=
+@@ -389,7 +389,7 @@ datarootdir ?= $(PREFIX)/share
+ mandir      ?= $(datarootdir)/man
+ man1dir     ?= $(mandir)/man1
+ 
+-ifneq (,$(filter $(UNAME),OpenBSD FreeBSD NetBSD DragonFly SunOS))
++ifneq (,$(filter $(UNAME),OpenBSD SecBSD FreeBSD NetBSD DragonFly SunOS))
+   MANDIR  ?= $(PREFIX)/man
+   MAN1DIR ?= $(MANDIR)/man1
+ else
diff --git a/archivers/zstd/patches/patch-tests_Makefile b/archivers/zstd/patches/patch-tests_Makefile
new file mode 100644
index 000000000..0edf66e87
--- /dev/null
+++ b/archivers/zstd/patches/patch-tests_Makefile
@@ -0,0 +1,12 @@
+Index: tests/Makefile
+--- tests/Makefile.orig
++++ tests/Makefile
+@@ -263,7 +263,7 @@ clean:
+ # valgrind tests validated only for some posix platforms
+ #----------------------------------------------------------------------------------
+ UNAME := $(shell uname)
+-ifneq (,$(filter $(UNAME),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS AIX))
++ifneq (,$(filter $(UNAME),Linux Darwin GNU/kFreeBSD GNU OpenBSD SecBSD FreeBSD NetBSD DragonFly SunOS AIX))
+ HOST_OS = POSIX
+ 
+ .PHONY: test-valgrind
diff --git a/archivers/zstd/patches/patch-tests_cli-tests_common_mtime_sh b/archivers/zstd/patches/patch-tests_cli-tests_common_mtime_sh
new file mode 100644
index 000000000..6daf43a00
--- /dev/null
+++ b/archivers/zstd/patches/patch-tests_cli-tests_common_mtime_sh
@@ -0,0 +1,12 @@
+Index: tests/cli-tests/common/mtime.sh
+--- tests/cli-tests/common/mtime.sh.orig
++++ tests/cli-tests/common/mtime.sh
+@@ -2,7 +2,7 @@
+ 
+ MTIME="stat -c %Y"
+ case "$UNAME" in
+-    Darwin | FreeBSD | OpenBSD | NetBSD) MTIME="stat -f %m" ;;
++    Darwin | FreeBSD | OpenBSD | NetBSD | SecBSD) MTIME="stat -f %m" ;;
+ esac
+ 
+ assertSameMTime() {
diff --git a/archivers/zstd/patches/patch-tests_cli-tests_common_permissions_sh b/archivers/zstd/patches/patch-tests_cli-tests_common_permissions_sh
new file mode 100644
index 000000000..c8c968590
--- /dev/null
+++ b/archivers/zstd/patches/patch-tests_cli-tests_common_permissions_sh
@@ -0,0 +1,12 @@
+Index: tests/cli-tests/common/permissions.sh
+--- tests/cli-tests/common/permissions.sh.orig
++++ tests/cli-tests/common/permissions.sh
+@@ -2,7 +2,7 @@
+ 
+ GET_PERMS="stat -c %a"
+ case "$UNAME" in
+-    Darwin | FreeBSD | OpenBSD | NetBSD) GET_PERMS="stat -f %Lp" ;;
++    Darwin | FreeBSD | OpenBSD | NetBSD | SecBSD) GET_PERMS="stat -f %Lp" ;;
+ esac
+ 
+ assertFilePermissions() {
diff --git a/archivers/zstd/patches/patch-tests_cli-tests_common_platform_sh b/archivers/zstd/patches/patch-tests_cli-tests_common_platform_sh
new file mode 100644
index 000000000..5dc93d3ba
--- /dev/null
+++ b/archivers/zstd/patches/patch-tests_cli-tests_common_platform_sh
@@ -0,0 +1,11 @@
+Index: tests/cli-tests/common/platform.sh
+--- tests/cli-tests/common/platform.sh.orig
++++ tests/cli-tests/common/platform.sh
+@@ -21,6 +21,7 @@ case "$UNAME" in
+   FreeBSD) MD5SUM="gmd5sum" ;;
+   NetBSD) MD5SUM="md5 -n" ;;
+   OpenBSD) MD5SUM="md5" ;;
++  SecBSD) MD5SUM="md5" ;;
+   *) MD5SUM="md5sum" ;;
+ esac
+ 
diff --git a/archivers/zstd/patches/patch-tests_playTests_sh b/archivers/zstd/patches/patch-tests_playTests_sh
new file mode 100644
index 000000000..bdddc0220
--- /dev/null
+++ b/archivers/zstd/patches/patch-tests_playTests_sh
@@ -0,0 +1,36 @@
+Index: tests/playTests.sh
+--- tests/playTests.sh.orig
++++ tests/playTests.sh
+@@ -119,12 +119,13 @@ case "$UNAME" in
+   FreeBSD) MD5SUM="gmd5sum" ;;
+   NetBSD) MD5SUM="md5 -n" ;;
+   OpenBSD) MD5SUM="md5" ;;
++  SecBSD) MD5SUM="md5" ;;
+   *) MD5SUM="md5sum" ;;
+ esac
+ 
+ MTIME="stat -c %Y"
+ case "$UNAME" in
+-    Darwin | FreeBSD | OpenBSD | NetBSD) MTIME="stat -f %m" ;;
++    Darwin | FreeBSD | OpenBSD | NetBSD | SecBSD) MTIME="stat -f %m" ;;
+ esac
+ 
+ assertSameMTime() {
+@@ -136,7 +137,7 @@ assertSameMTime() {
+ 
+ GET_PERMS="stat -c %a"
+ case "$UNAME" in
+-    Darwin | FreeBSD | OpenBSD | NetBSD) GET_PERMS="stat -f %Lp" ;;
++    Darwin | FreeBSD | OpenBSD | NetBSD | SecBSD) GET_PERMS="stat -f %Lp" ;;
+ esac
+ 
+ assertFilePermissions() {
+@@ -870,7 +871,7 @@ rm -f ./*.tmp ./*.zstd
+ println "frame concatenation tests completed"
+ 
+ 
+-if [ "$isWindows" = false ] && [ "$UNAME" != 'SunOS' ] && [ "$UNAME" != "OpenBSD" ] && [ "$UNAME" != "AIX" ]; then
++if [ "$isWindows" = false ] && [ "$UNAME" != 'SunOS' ] && [ "$UNAME" != "OpenBSD" ] && [ "$UNAME" != "SecBSD" ] && [ "$UNAME" != "AIX" ]; then
+ println "\n**** flush write error test **** "
+ 
+ println "println foo | zstd > /dev/full"