The major change with 2018.76 was in configuration, moving from editing
'options.h' to adding things to 'localoptions.h'. The latter file must
be created in the extracted sources, a pragmatic approach was used to
add the defines, as seen in the buildroot project.

All options were compared to 'default_options.h' and 'sysoptions.h' from
the dropbear source. Not all options are in default_options, e.g. the
deprecated md5 hmac. A warning for that one was added.

Various things were fixed and improved in dropbear, changes notable:

+ 2019.78 / 2019.77
  - Fix 2018.76 regressions
  - Improve failure delay consistency
  - Change handling of failed authentication to avoid disclosing valid
    usernames, CVE-2018-15599.

+ 2018.76
  - Enable hardening build flags
  - New key exchange options
  - Improved DSS and RSA pubkey validation
  - Fix null pointer crash on malformed keys
  - Update curve25519-donna implementation

Signed-off-by: Alexander Dahl <a...@thorsis.com>
---

Notes:
    Just omitting --disable-fuzz wouldn't require that patch, it just pins down
    what is the default anyway, but for that the patch is needed.

 .../0001-configure-Fix-disable-fuzz.patch     |  47 +++++++
 patches/dropbear-2019.78/autogen.sh           |   1 +
 patches/dropbear-2019.78/series               |   4 +
 rules/dropbear.make                           | 129 ++++++++++--------
 4 files changed, 121 insertions(+), 60 deletions(-)
 create mode 100644 
patches/dropbear-2019.78/0001-configure-Fix-disable-fuzz.patch
 create mode 120000 patches/dropbear-2019.78/autogen.sh
 create mode 100644 patches/dropbear-2019.78/series

diff --git a/patches/dropbear-2019.78/0001-configure-Fix-disable-fuzz.patch 
b/patches/dropbear-2019.78/0001-configure-Fix-disable-fuzz.patch
new file mode 100644
index 000000000..03aec183a
--- /dev/null
+++ b/patches/dropbear-2019.78/0001-configure-Fix-disable-fuzz.patch
@@ -0,0 +1,47 @@
+From: Alexander Dahl <a...@thorsis.com>
+Date: Wed, 11 Mar 2020 10:50:45 +0100
+Subject: [PATCH] configure: Fix --disable-fuzz
+
+When explicitly passing --disable-fuzz to ./configure fuzz was actually
+enabled.
+
+Signed-off-by: Alexander Dahl <a...@thorsis.com>
+---
+
+Notes:
+    Sent upstream: 
https://lists.ucc.gu.uwa.edu.au/pipermail/dropbear/2020q1/002202.html
+
+ configure.ac | 17 ++++++++++++-----
+ 1 file changed, 12 insertions(+), 5 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index 7199d7cb2300..104d60cfaf53 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -326,14 +326,21 @@ AC_ARG_ENABLE(shadow,
+ AC_ARG_ENABLE(fuzz,
+       [  --enable-fuzz           Build fuzzing. Not recommended for 
deployment.],
+       [
+-              AC_DEFINE(DROPBEAR_FUZZ, 1, Fuzzing)
+-              AC_MSG_NOTICE(Enabling fuzzing)
+-              DROPBEAR_FUZZ=1
+-              # libfuzzer needs linking with c++ libraries
+-              AC_PROG_CXX
++              if test "x$enableval" = "xyes"; then
++            AC_DEFINE(DROPBEAR_FUZZ, 1, Fuzzing)
++            AC_MSG_NOTICE(Enabling fuzzing)
++            DROPBEAR_FUZZ=1
++            # libfuzzer needs linking with c++ libraries
++            AC_PROG_CXX
++        else
++            AC_DEFINE(DROPBEAR_FUZZ, 0, Fuzzing)
++            AC_MSG_NOTICE(Disabling fuzzing)
++            DROPBEAR_FUZZ=0
++        fi
+       ],
+       [
+               AC_DEFINE(DROPBEAR_FUZZ, 0, Fuzzing)
++              AC_MSG_NOTICE(Disabling fuzzing)
+               DROPBEAR_FUZZ=0
+       ]
+ 
diff --git a/patches/dropbear-2019.78/autogen.sh 
b/patches/dropbear-2019.78/autogen.sh
new file mode 120000
index 000000000..9f8a4cb7d
--- /dev/null
+++ b/patches/dropbear-2019.78/autogen.sh
@@ -0,0 +1 @@
+../autogen.sh
\ No newline at end of file
diff --git a/patches/dropbear-2019.78/series b/patches/dropbear-2019.78/series
new file mode 100644
index 000000000..3e5a5247e
--- /dev/null
+++ b/patches/dropbear-2019.78/series
@@ -0,0 +1,4 @@
+# generated by git-ptx-patches
+#tag:base --start-number 1
+0001-configure-Fix-disable-fuzz.patch
+# c03ca050bdd0c61ac96e5bd22c9d0947  - git-ptx-patches magic
diff --git a/rules/dropbear.make b/rules/dropbear.make
index a3b867817..8d80ed295 100644
--- a/rules/dropbear.make
+++ b/rules/dropbear.make
@@ -16,8 +16,8 @@ PACKAGES-$(PTXCONF_DROPBEAR) += dropbear
 #
 # Paths and names
 #
-DROPBEAR_VERSION       := 2017.75
-DROPBEAR_MD5           := e57e9b9d25705dcb073ba15c416424fd
+DROPBEAR_VERSION       := 2019.78
+DROPBEAR_MD5           := a972c85ed678ad0fdcb7844e1294fb54
 DROPBEAR               := dropbear-$(DROPBEAR_VERSION)
 DROPBEAR_SUFFIX                := tar.bz2
 DROPBEAR_URL           := 
http://matt.ucc.asn.au/dropbear/releases/$(DROPBEAR).$(DROPBEAR_SUFFIX)
@@ -38,12 +38,14 @@ DROPBEAR_LICENSE_FILES      := \
 DROPBEAR_CONF_TOOL     := autoconf
 DROPBEAR_CONF_OPT      := \
        $(CROSS_AUTOCONF_USR) \
+       --enable-harden \
        $(GLOBAL_LARGE_FILE_OPTION) \
        --$(call ptx/endis, PTXCONF_DROPBEAR_ZLIB)-zlib \
        --disable-pam \
        --$(call ptx/disen, PTXCONF_DROPBEAR_DIS_OPENPTY)-openpty \
        --$(call ptx/disen, PTXCONF_DROPBEAR_DIS_SYSLOG)-syslog \
        --enable-shadow \
+       --disable-fuzz \
        --enable-bundled-libtom \
        --$(call ptx/disen, PTXCONF_DROPBEAR_DIS_LASTLOG)-lastlog \
        --$(call ptx/disen, PTXCONF_DROPBEAR_DIS_UTMP)-utmp \
@@ -54,206 +56,213 @@ DROPBEAR_CONF_OPT         := \
        --$(call ptx/disen, PTXCONF_DROPBEAR_DIS_PUTUTLINE)-pututline \
        --$(call ptx/disen, PTXCONF_DROPBEAR_DIS_PUTUTXLINE)-pututxline
 
+DROPBEAR_LOCALOPTIONS  := $(DROPBEAR_DIR)/localoptions.h
+
 $(STATEDIR)/dropbear.prepare:
        @$(call targetinfo)
        @$(call world/prepare, DROPBEAR)
 
+       @echo "/* localoptions.h created by ptxdist */" > 
$(DROPBEAR_LOCALOPTIONS)
+
 ifdef PTXCONF_DROPBEAR_DIS_X11
        @echo "ptxdist: disabling x11 forwarding"
-       $(call disable_c, $(DROPBEAR_DIR)/options.h,ENABLE_X11FWD)
+       @echo "#define DROPBEAR_X11FWD 0" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: enabling x11 forwarding"
-       $(call enable_c, $(DROPBEAR_DIR)/options.h,ENABLE_X11FWD)
+       @echo "#define DROPBEAR_X11FWD 1" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_DIS_TCP
        @echo "ptxdist: disabling tcp"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,ENABLE_CLI_LOCALTCPFWD)
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,ENABLE_CLI_REMOTETCPFWD)
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,ENABLE_SVR_LOCALTCPFWD)
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,ENABLE_SVR_REMOTETCPFWD)
+       @echo "#define DROPBEAR_CLI_LOCALTCPFWD 0" >> $(DROPBEAR_LOCALOPTIONS)
+       @echo "#define DROPBEAR_CLI_REMOTETCPFWD 0" >> $(DROPBEAR_LOCALOPTIONS)
+       @echo "#define DROPBEAR_SVR_LOCALTCPFWD 0" >> $(DROPBEAR_LOCALOPTIONS)
+       @echo "#define DROPBEAR_SVR_REMOTETCPFWD 0" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: enabling tcp"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,ENABLE_CLI_LOCALTCPFWD)
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,ENABLE_CLI_REMOTETCPFWD)
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,ENABLE_SVR_LOCALTCPFWD)
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,ENABLE_SVR_REMOTETCPFWD)
+       @echo "#define DROPBEAR_CLI_LOCALTCPFWD 1" >> $(DROPBEAR_LOCALOPTIONS)
+       @echo "#define DROPBEAR_CLI_REMOTETCPFWD 1" >> $(DROPBEAR_LOCALOPTIONS)
+       @echo "#define DROPBEAR_SVR_LOCALTCPFWD 1" >> $(DROPBEAR_LOCALOPTIONS)
+       @echo "#define DROPBEAR_SVR_REMOTETCPFWD 1" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_DIS_AGENT
        @echo "ptxdist: disabling agent"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,ENABLE_SVR_AGENTFWD)
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,ENABLE_CLI_AGENTFWD)
+       @echo "#define DROPBEAR_SVR_AGENTFWD 0" >> $(DROPBEAR_LOCALOPTIONS)
+       @echo "#define DROPBEAR_CLI_AGENTFWD 0" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: enabling agent"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,ENABLE_SVR_AGENTFWD)
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,ENABLE_CLI_AGENTFWD)
+       @echo "#define DROPBEAR_SVR_AGENTFWD 1" >> $(DROPBEAR_LOCALOPTIONS)
+       @echo "#define DROPBEAR_CLI_AGENTFWD 1" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 
 ifdef PTXCONF_DROPBEAR_AES128
        @echo "ptxdist: enabling aes128"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_AES128)
+       @echo "#define DROPBEAR_AES128 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling aes128"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_AES128)
+       @echo "#define DROPBEAR_AES128 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_3DES
        @echo "ptxdist: enabling 3des"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_3DES)
+       @echo "#define DROPBEAR_3DES 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling 3des"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_3DES)
+       @echo "#define DROPBEAR_3DES 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_AES256
        @echo "ptxdist: enabling aes256"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_AES256)
+       @echo "#define DROPBEAR_AES256 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling aes256"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_AES256)
+       @echo "#define DROPBEAR_AES256 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_BLOWFISH
        @echo "ptxdist: enabling blowfish"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_BLOWFISH)
+       @echo "#define DROPBEAR_BLOWFISH 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling blowfish"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_BLOWFISH)
+       @echo "#define DROPBEAR_BLOWFISH 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_TWOFISH256
        @echo "ptxdist: enabling twofish256"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_TWOFISH256)
+       @echo "#define DROPBEAR_TWOFISH256 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling twofish256"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_TWOFISH256)
+       @echo "#define DROPBEAR_TWOFISH256 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_TWOFISH128
        @echo "ptxdist: enabling twofish128"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_TWOFISH128)
+       @echo "#define DROPBEAR_TWOFISH128 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling twofish128"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_TWOFISH128)
+       @echo "#define DROPBEAR_TWOFISH128 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_CBC_CIPHERS
        @echo "ptxdist: enabling cbc ciphers"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_ENABLE_CBC_MODE)
+       @echo "#define DROPBEAR_ENABLE_CBC_MODE 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling cbc ciphers"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_ENABLE_CBC_MODE)
+       @echo "#define DROPBEAR_ENABLE_CBC_MODE 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
+
 ifdef PTXCONF_DROPBEAR_CTR_CIPHERS
        @echo "ptxdist: enabling ctr ciphers"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_ENABLE_CTR_MODE)
+       @echo "#define DROPBEAR_ENABLE_CTR_MODE 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling ctr ciphers"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_ENABLE_CTR_MODE)
+       @echo "#define DROPBEAR_ENABLE_CTR_MODE 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_SHA1
        @echo "ptxdist: enabling sha1"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_SHA1_HMAC)
+       @echo "#define DROPBEAR_SHA1_HMAC 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling sha1"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_SHA1_HMAC)
+       @echo "#define DROPBEAR_SHA1_HMAC 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_SHA1_96
        @echo "ptxdist: enabling sha1-96"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_SHA1_96_HMAC)
+       @echo "#define DROPBEAR_SHA1_96_HMAC 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling sha1-96"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_SHA1_96_HMAC)
+       @echo "#define DROPBEAR_SHA1_96_HMAC 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_SHA256
        @echo "ptxdist: enabling sha256"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_SHA2_256_HMAC)
+       @echo "#define DROPBEAR_SHA2_256_HMAC 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling sha256"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_SHA2_256_HMAC)
+       @echo "#define DROPBEAR_SHA2_256_HMAC 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_SHA512
        @echo "ptxdist: enabling sha512"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_SHA2_512_HMAC)
+       @echo "#define DROPBEAR_SHA2_512_HMAC 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling sha512"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_SHA2_512_HMAC)
+       @echo "#define DROPBEAR_SHA2_512_HMAC 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_MD5
        @echo "ptxdist: enabling md5"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_MD5_HMAC)
+       @echo "WARNING: md5 is considered broken and is deactivated in upstream 
dropbear by default!"
+       @echo "#define DROPBEAR_MD5_HMAC 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling md5"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_MD5_HMAC)
+       @echo "#define DROPBEAR_MD5_HMAC 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 
 ifdef PTXCONF_DROPBEAR_RSA
        @echo "ptxdist: enabling rsa"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_RSA)
+       @echo "#define DROPBEAR_RSA 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling rsa"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_RSA)
+       @echo "#define DROPBEAR_RSA 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_DSS
        @echo "ptxdist: enabling dss"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_DSS)
+       @echo "#define DROPBEAR_DSS 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling dss"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_DSS)
+       @echo "#define DROPBEAR_DSS 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_ECDSA
        @echo "ptxdist: enabling ecdsa"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_ECDSA)
+       @echo "#define DROPBEAR_ECDSA 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling ecdsa"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_ECDSA)
+       @echo "#define DROPBEAR_ECDSA 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_ECDH
        @echo "ptxdist: enabling ecdh"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_ECDH)
+       @echo "#define DROPBEAR_ECDH 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling ecdh"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_ECDH)
+       @echo "#define DROPBEAR_ECDH 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_CURVE25519
        @echo "ptxdist: enabling curve25519"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_CURVE25519)
+       @echo "#define DROPBEAR_CURVE25519 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling curve25519"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_CURVE25519)
+       @echo "#define DROPBEAR_CURVE25519 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
+
 ifdef PTXCONF_DROPBEAR_PASSWD
        @echo "ptxdist: enabling passwd"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,ENABLE_SVR_PASSWORD_AUTH)
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,ENABLE_CLI_PASSWORD_AUTH)
+       @echo "#define DROPBEAR_SVR_PASSWORD_AUTH 1" >> $(DROPBEAR_LOCALOPTIONS)
+       @echo "#define DROPBEAR_CLI_PASSWORD_AUTH 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling passwd"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,ENABLE_SVR_PASSWORD_AUTH)
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,ENABLE_CLI_PASSWORD_AUTH)
+       @echo "#define DROPBEAR_SVR_PASSWORD_AUTH 0" >> $(DROPBEAR_LOCALOPTIONS)
+       @echo "#define DROPBEAR_CLI_PASSWORD_AUTH 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
 ifdef PTXCONF_DROPBEAR_PUBKEY
        @echo "ptxdist: enabling pubkey"
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,ENABLE_SVR_PUBKEY_AUTH)
-       @$(call enable_c, $(DROPBEAR_DIR)/options.h,ENABLE_CLI_PUBKEY_AUTH)
+       @echo "#define DROPBEAR_SVR_PUBKEY_AUTH 1" >> $(DROPBEAR_LOCALOPTIONS)
+       @echo "#define DROPBEAR_CLI_PUBKEY_AUTH 1" >> $(DROPBEAR_LOCALOPTIONS)
 else
        @echo "ptxdist: disabling pubkey"
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,ENABLE_SVR_PUBKEY_AUTH)
-       @$(call disable_c, $(DROPBEAR_DIR)/options.h,ENABLE_CLI_PUBKEY_AUTH)
+       @echo "#define DROPBEAR_SVR_PUBKEY_AUTH 0" >> $(DROPBEAR_LOCALOPTIONS)
+       @echo "#define DROPBEAR_CLI_PUBKEY_AUTH 0" >> $(DROPBEAR_LOCALOPTIONS)
 endif
 
        @$(call touch)
-- 
2.20.1


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