I'm a software engineer at Apple where I have worked on various technologies over my career in CoreOS, iOS, and Development Technologies. I am the principal developer responsible for ​XQuartz. I've extended this role to MacPorts where I maintain a large number of our X11 ports in addition to llvm, clang, and some random other ports.

Related Wikis

• Leopard SDK Fixes
• libc++ On Older Systems

Tickets for base, guide, website, …

Reported Tickets

#30040

Allow case-sensitive build roots

#34833

binary packages should not be installed if the default dependencies are not used

#52810

Enhance buildbot email to include links to failing builds instead of just all builds

Assigned Tickets

No results

On CC

#16373

base should maintain a persistent working copy for all supported VCS fetches

#48345

Building for 10.4u SDK on 10.6 uses gcc-4.0 even though building directly on 10.4 uses the newer apple-gcc-4.2

#50448

Change filenames of binary packages built against libc++ on < 10.9

Tickets for ports

Reported Tickets

#18691

basiliskii fails to compile

#22961

winetricks should mkdir ~/.wine/drive_c/windows/Fonts

#23040

ocamlmklib doesn't understand -arch

#23772

InsightToolKit: fix linking against python 2.6 framework

#30046

swi-prolog-devel uses system ncurses rather than MacPorts

#37769

bind9 gssapi linking changes don't work (?)

#37783

graphviz +universal +ruby fails if ruby19 is -universal

#37947

graphite2 fails to build with libc++

#40194

muniversal: pre-merge hook for each destroot

#40478

gcc-4.8 (and likely earlier) build incorrectly +universal

#42702

glibtool drops dylibs at link time

#44624

vim+universal+ruby18 fails to build because of missing rb_num2uint symbol in i386 slice of libruby.dylib

#46432

scons messes up the environment and removes ${prefix}/bin from $PATH

#46833

glpng fails to build due to macro conflict with libpng

#50854

scons incorrectly builds projects, serf1 unexpectedly changed dylib versions with just a revbump for OpenSSL

#51039

vte fails to build if an older version is active (builds against installed content instead of local content)

#51572

port selecting python3 as python should emit a warning

#52248

inkscape, inkscape-devel +strict fails to build due to glibmm / glib2 deprecation misconfiguration

#52398

Remove webkit-gtk and webkit-gtk-2.0

#52399

Remove webkit-sharp or move it to use webkit2-gtk

#52401

Update balsa to use webkit2-gtk

#52402

Update empathy to use webkit2-gtk

#52404

Update gnucash ports to use webkit2-gtk

#52405

Update liferea to use webkit2-gtk

#52406

Update seed to use webkit2-gtk

#52407

Update birdfont to use webkit2-gtk

#52409

Update gtkpod to use webkit2-gtk

#52410

Update py27-webkitgtk to use webkit2-gtk

#52411

Update bibledit to use webkit2-gtk

#52412

Update midori to use webkit2-gtk

#52413

Update uzbl to use webkit2-gtk

#52667

acl2 misuses platform

#53152

scons does not honor $PATH

#53726

libgcc / gcc fails to build against SDK (i.e. without system headers installed)

Assigned Tickets

#22724

mplayer-devel and binary codec package

#29173

ld64 should symlink rather than copy ld and rebase on darwin > 10

#31667

libpar2 and par2 fail 'make check' with clang++

#39307

mplayer no subtitles, no fonts

#42071

mesa @8.0.4: add python32 and python33 variants

#44780

MPlayer @1.1_8 +osd does not produce osd

#45795

llvm-3.4 fails to build with +ocaml variant

#46681

crash in glx_display_free when closing application connected to remote XOrg.org server

#46856

add xvfb support to xorg-server package for proposed xvfb-run package to use

#47157

ld64 @2_0 +ld64_127 Linked huge PowerPC dynamic library causes crashes

#47776

ld64 @2 Add wrapper script to select compatible linker

#48823

MPlayer falling back to pbuffer on OS X 10.11

#49001

Add support to provide a clang-based as wrapper

#49903

libcxx: undo changes to system directories when deactivating

#50080

clang-3.8+universal fails to build

#50565

MPlayer 1.2_1 dvd support missing

#50784

MPlayer @1.2_1 and @1.2_2 patch to use new coreaudio API calls

#51186

libcxx: archivefetch failed for libcxx @3.7.1_0

#51287

Inkscape crashes on startup if enchant is installed with +applespell

#51875

clang-3.8 @3.8.1_1+analyzer: port select clang mp-clang-3.8 fails

#52091

cctools, ld64: Removing +llvm33 variant introduces circular dependencies on Leopard due to llvm-3.4 failing to build with Xcode 3.1's gcc

#52128

ld64: don't add unsupported subports

#52398

Remove webkit-gtk and webkit-gtk-2.0

#52401

Update balsa to use webkit2-gtk

#52406

Update seed to use webkit2-gtk

#52409

Update gtkpod to use webkit2-gtk

#52411

Update bibledit to use webkit2-gtk

#52784

allow clang-3.9 support clang compilers to find the omp.h header from libomp package

#52958

mesa @12.0.1_2 won't build ob Mac OS X 10.6.8, Snow Leopard, because "redefinition of typedef 'Display' is invalid in C"

#53299

clang-3.9: sanitizer libraries not at the right place

#53450

xorg-server @1.18.4_1 Error: Failed to build xorg-server: command execution failed

#53553

font-misc-ethiopic needs runtime dependency on mkfontscale and mkfontdir

#53680

llvm_select llvm-3.7 cctools clang_select clang-3.7 llvm-3.8 clang-3.8: reinplace warnings

#53726

libgcc / gcc fails to build against SDK (i.e. without system headers installed)

#53759

mplayer binary seems broken on macbook 5,1 running Sierra

#53784

Add support for tapi-tbd-v2

#53862

xorg-libXt @1.1.5: autom4te: need GNU m4 1.4 or later: /usr/bin/m4

#53910

xorg-server @1.18.4: repetitive crash. Can't kill it. Have to log out to stop it

#53931

clang's ld doesn't recognise "-lto_library" flag on 10.6

#54129

llvm-4.0 build fails due to libtool error on SnowLeopard when built with clang-3.9, but succeeds when built with clang-3.7

#54131

llvm-3.7 @3.7.1_4: Faulty LLVMConfig.cmake

#54135

clang-4.0 error building software on 10.6 (or less) due to #include_next <float.h>

#54226

"/opt/local/bin/as: assembler (/opt/local/bin/clang) not installed"

#54234

apple-gcc42 @5666.3_15 +gpl3: patch file is missing on all servers

#54237

MPlayer @1.3.0_2: playback very sloooooow

#54242

clang-3.8 build fails on 10.5 PPC due to fatal error: lipo: specifed architecture in libclang_rt.10.4.a does not match its cputype -- and workaround that allows build to succeed

#54254

(MPlayer, 10.4.11) Failed to build MPlayer: command execution failed

#54289

libcxx{,-abi} : upgrade + "runtime" variant

On CC

#1936

BUG: devel/mono doesn't look in /opt/local/lib at runtime

#11784

RFE: make R universal

#17540

poppler conflicts with xpdf

#21151

webkit-gtk should support jit where available

#29763

*_select framework does not apply to Perl: fix provided

#31300

mercury @11.0 +universal mmc fails with inappropriate paths

#31580

MacPorts xfd renders fonts differently (and worse) from OSX xfd

#32799

request for ffmbc port

#33343

encoding x264 with ffmpeg does not use CPU capabilities on 64bit 10.7.3

#33696

ffmpeg: Cannot build with XCode 4.3.1 for 64 bit

#33886

Startx script cannot handle fake domain names on PPC Tiger?

#34094

ffmpeg: patch required to solve undefined type/function when using C++

#34289

ffmpeg-devel: add qt-faststart

#36092

PDFTK broken after GCC47 upgrade

#36850

ffmpeg: fix universal build when architectures can't be run

#36942

ffmpeg @1.0_2 +gpl2 Patch to allow successful build on PPC Tiger

#36981

gcc ports may not be UsingTheRightCompiler

#37020

ffmpeg, ffmpeg-devel: Add libass (subtitle burning)

#37601

libc-headers installs stdio.h masking OS libc header

#37604

doxygen and xorg-libxcb circular dependency

#37732

cmake-1.0: provide option to disable CMAKE_OSX_ARCHITECTURES

#38551

gcc48: "ar" does not work (complains about missing 'liblto_plugin.so')

#39085

wine, wine-crossover, wine-devel: update dependencies

#39551

clang @3.3 libclang python bindings should be installed

#40464

libquicktime @1.2.4_7: build failure

#40494

aria2 @1.18.0: requires C++11 support

#41256

cmake portgroup's debug variant sets release optflags

#41529

Error: org.macports.build for port BGHUDAppKit returned: command execution failed

#42014

gjs build failure

#42728

autogen @5.17.4_0: autoopts-config produces a stray -R flag, breaks gnutls @3.1.22_0 build

#42777

gcc47/gcc48 - problem with linking some C++ python extensions (std::ostringstream)

#43689

xorg-libpthread-stubs: Failed to fetch signature for archive: The requested URL returned error: 400 Bad Request

#43869

libgcc @4.8.2_1: error: '_Unwind_Ptr' does not name a type

#44064

root6: try to decouple the compiler that root was built with and compiler that root uses

#44224

root5: fails to compile with libc++ on 10.7 (error: no matching function for call to 'isnan')

#45678

libquicktime @1.2.4: build failure

#46040

llvm-*, clang-*: all binaries are overlinked to libedit, libffi, ncurses, and zlib

#46161

ocaml @4.02.1_0: should install findlib and ocamlfind

#46431

llvm does not have manpage

#46700

ffmpeg: add openssl variant

#46857

update rNMR to 1.1.8 using new xvfb-run port and xvfb subport as well as return to ${prefix}/lib/R/library

#47191

clang-3.7: c++14: missing support for binary operator delete

#47525

gstreamer1-gst-plugins-good @ 1.4.5: trying to come up with an x11 variant fails

#47532

imlib2 @ 1.4.6: introduce x11 variant

#47691

remove obsolete python variants

#47929

llvm-gcc42 @2336.11_2 fails building on 10.6.8

#48454

babl @0.1.12 build failure (codegen)

#48471

FSF gcc48 fails to compile projects on El Capitan due to OS X SDK bug in Availability.h

#48647

`port select gcc` sets default C++ compiler

#48767

guile: re-enable universal variant

#49227

gcc5 @5.2.0: fix gcj

#49289

opencv @3.0.0 | ffmpeg-devel @20150916_x- error: use of undeclared identifier 'avcodec_free_frame'; did you mean 'avcodec_get_name'?

#49644

mariadb-10.0 won't build with LibreSSL

#49764

babl @0.1.14 falls back to clang-3.4 which is not functional on PPC platforms

#50547

port suggestion : clazy

#50984

gobject-introspection should support different versions of python

#51123

request: port:libclang-XY

#51133

Xcode 7.3 bug: __DATA/__thread_bss extends beyond end of file

#51488

gstreamer1-gst-plugins-bad Will Not Update

#51815

librsvg @2.40.16 does not build on PPC Mac OS X 10.5.8, Leopard, because of "./libtool: eval: line 1085: syntax error near unexpected token `|' "

#52043

python27 @2.7.12_1 fails to build +universal on Sierra; prevents installation of wine

#52210

libsdl2: make it build on 10.6 (against 10.6 SDK)

#52424

Ports that depend on old llvm versions should be updated

#52468

gtk3 3.22.0_0 build fails on 10.5 ppc

#52585

libcxxabi -- attempts to add thread-local-storage (TLS) to <10.9

#52930

Clang-3.8 @3.8.1_6 fails to build on Snow Leopard, Mac OS X 10.6.8, because 'arm/limits.h' cannot be found

#52955

libxkbcommon: new port

#53184

A cxx11-compatible clang compiler on 10.5 PPC ?Some progress...

#53201

cmake: doesn't recognize macports-clang (No known features for CXX compiler)

#53343

wine and wine-devel: smooth fonts?

#53433

wine, wine-devel, wine-crossover: Undefined symbols: "_strnlen"

#53449

cctools 895 breaks port:audacity build

#53634

clang++-mp-4.0 -stdlib=macports-libstdc++ should be in C++11 mode by default

#53763

Can't update ffmpeg-3.2.4

#53973

ffmpeg @3.2.4_3: update to 3.3.1

#54072

ffmpeg: a variant to compile ffmpeg with support for nvenc?

#54091

submission: QMPlay2, yet another multimedia player

#54094

Add xcb-util-xrm

#54116

ffmpeg loudnorm filter

#54149

gcc6 fails to compile because "configure: error: cannot compute sizeof (long long)"

#54157

ncurses +universal: fails to build when using `-t`

#54166

[submission] gccas

#54236

port:mesa & port:libepoxy : provide and support EGL

#54333

ffmpeg-devel @20170615_0 does not build on Mac OS X 10.6.8, Snow Leopard, because of missing vda_framework pthreads