When trying to build security/qca-tls on DragonFly 1.3.7-DEVELOPMENT I receive 
the following errors:

Configuring qca-tls ...
Verifying Qt 3.x Multithreaded (MT) build environment ... ok
Checking for OpenSSL ... yes

Good, your configure finished. Now run 'make'.

cd /usr/pkgsrc/security/qca-tls/work/qca-tls-1.0 && ( /usr/bin/env 
FREETYPE_CONFIG="/usr/pkg/bin/freetype-config" PTHREAD_CFLAGS=\ -pthread\  
PTHREAD_LDFLAGS=\ -pthread PTHREAD_LIBS=-lpthread PTHREADBASE=/usr 
MOC="/usr/pkg/qt3/bin/moc" QTDIR="/usr/pkg/qt3" MOC="/usr/pkg/qt3/bin/moc" 
QTDIR="/usr/pkg/qt3" UIC="/usr/pkg/qt3/bin/uic" 
QMAKE="/usr/pkg/qt3/bin/qmake" QMAKESPEC=/usr/pkg/qt3/mkspecs/netbsd-g++ 
LIBTOOL="libtool " CC=cc CFLAGS=-O2\ -I/usr/pkg/include\ -I/usr/include\ 
-I/usr/pkg/qt3/include\ -DGLX_GLXEXT_LEGACY\ -I/usr/pkg/xorg/include\ 
-I/usr/pkg/include/freetype2 CPPFLAGS=-I/usr/pkg/include\ -I/usr/include\ 
-I/usr/pkg/qt3/include\ -DGLX_GLXEXT_LEGACY\ -I/usr/pkg/xorg/include\ 
-I/usr/pkg/include/freetype2 CXX=c++ CXXFLAGS=-O2\ -I/usr/pkg/include\ 
-I/usr/include\ -I/usr/pkg/qt3/include\ -DGLX_GLXEXT_LEGACY\ 
-I/usr/pkg/xorg/include\ -I/usr/pkg/include/freetype2 
COMPILER_RPATH_FLAG=-Wl,-R F77=f77 FC=f77 FFLAGS=-O LANG=C LC_COLLATE=C 
LC_CTYPE=C LC_MESSAGES=C LC_MONETARY=C LC_NUMERIC=C LC_TIME=C 
LDFLAGS=-L/usr/pkg/lib\ -Wl,-R/usr/pkg/lib\ -L/usr/lib\ -Wl,-R/usr/lib\ 
-L/usr/pkg/qt3/lib\ -Wl,-R/usr/pkg/qt3/lib\ -L/usr/pkg/xorg/lib\ 
-Wl,-R/usr/pkg/xorg/lib LINKER_RPATH_FLAG=-R 
PATH=/usr/pkgsrc/security/qca-tls/work/.wrapper/bin:/usr/pkgsrc/security/qca-tls/work/.buildlink/bin:/usr/pkgsrc/security/qca-tls/work/.gcc/bin:/usr/pkgsrc/security/qca-tls/work/.tools/bin:/usr/pkg/bin:/usr/pkg/xorg/bin:/usr/pkg/bin:/usr/pkg/sbin:/usr/pkg/xorg/bin:/sbin:/usr/bin:/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/usr/X11R6/bin:/usr/pkg/bin:/usr/pkg/xorg/bin 
PREFIX=/usr/pkg PKG_SYSCONFDIR=/usr/pkg/etc 
INSTALL_INFO=/usr/pkgsrc/security/qca-tls/work/.tools/bin/install-info 
MAKEINFO=/usr/pkgsrc/security/qca-tls/work/.tools/bin/makeinfo PKG_CONFIG= 
PKG_CONFIG_LIBDIR=/usr/pkgsrc/security/qca-tls/work/.buildlink/lib/pkgconfig 
PKG_CONFIG_LOG=/usr/pkgsrc/security/qca-tls/work/.pkg-config.log MAKE=make 
WRAPPER_DEBUG="yes" 
WRAPPER_UPDATE_CACHE="yes"                       /usr/pkg/qt3/bin/qmake 
qca-tls.pro -o Makefile.orig;    /usr/bin/sed -e 
"s,-rpath .*,-rpath /usr/pkg/qt3/lib," Makefile.orig > Makefile;        )
===> Building for qca-tls-1.0
libtool --mode=compile c++ -c -O2 -I/usr/pkg/include -I/usr/include 
-I/usr/pkg/qt3/include -DGLX_GLXEXT_LEGACY -I/usr/pkg/xorg/include 
-I/usr/pkg/include/freetype2 -DQ_TRAILING_DIR_SEP -D_REENTRANT  -DQCA_PLUGIN 
-DOSSL_097 -DQT_NO_DEBUG -DQT_THREAD_SUPPORT -DQT_PLUGIN 
-I/usr/pkg/qt3/mkspecs/netbsd-g++ -I. -I../../../../../include 
-I../../../../../pkg/include -I/usr/pkg/qt3/include -o qca-tls.o qca-tls.cpp
mkdir .libs
 c++ -c -O2 -I/usr/pkgsrc/security/qca-tls/work/.buildlink/include 
-I/usr/pkg/qt3/include -DGLX_GLXEXT_LEGACY 
-I/usr/pkgsrc/security/qca-tls/work/.x11-buildlink/include 
-I/usr/pkgsrc/security/qca-tls/work/.buildlink/include/freetype2 
-DQ_TRAILING_DIR_SEP -D_REENTRANT -DQCA_PLUGIN -DOSSL_097 -DQT_NO_DEBUG 
-DQT_THREAD_SUPPORT -DQT_PLUGIN -I/usr/pkg/qt3/mkspecs/netbsd-g++ -I. 
-I../../../../../include -I../../../../../pkg/include qca-tls.cpp  -fPIC 
-DPIC -o .libs/qca-tls.o
qca-tls.cpp: In member function `virtual bool 
RSAKeyContext::createFromDER(const char*, unsigned int)':
qca-tls.cpp:457: error: invalid conversion from `unsigned char**' to `const 
unsigned char**'
qca-tls.cpp:457: error:   initializing argument 2 of `RSA* 
d2i_RSA_PUBKEY(RSA**, const unsigned char**, long int)'
qca-tls.cpp: In member function `virtual bool CertContext::createFromDER(const 
char*, unsigned int)':
qca-tls.cpp:802: error: invalid conversion from `unsigned char**' to `const 
unsigned char**'
qca-tls.cpp:802: error:   initializing argument 2 of `X509* d2i_X509(X509**, 
const unsigned char**, long int)'
gmake: *** [qca-tls.o] Error 1
*** Error code 2

Stop.

So far this one has me stumped, it is beyond my knowledge to find any kind of 
workaround.  This port is necessary for kopete (KDE instant messenger) to 
provide protocol encryption on Jabber.