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

#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

#22961

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

#23040

ocamlmklib doesn't understand -arch

#23772

InsightToolKit: fix linking against python 2.6 framework

#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

libtool 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

#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

#52404

Update gnucash ports 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

py27-webkitgtk: remove obsolete port, no dependents

#52411

Update bibledit to use webkit2-gtk

#52412

Update midori to use webkit2-gtk

#52413

Update uzbl to use webkit2-gtk

#53152

scons does not honor $PATH

Assigned Tickets

#22724

mplayer-devel and binary codec package

#29173

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

#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

#46161

llvm +ocaml should depend on ocaml-findlib

#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

#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

#52406

Update seed to use webkit2-gtk

#52409

Update gtkpod to use webkit2-gtk

#52411

Update bibledit to use webkit2-gtk

#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"

#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

#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

#54131

llvm-3.7 @3.7.1_4: Faulty LLVMConfig.cmake

#54226

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

#54289

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

#54553

clang effectively ignores the LIBRARY_PATH env. variable

#54591

xorg-server @1.18.4_2: update to 1.19.5

#54638

mesa @17.1.6_0: error: implicit declaration of function 'fstatat' is invalid in C99

#54654

cdda_interface.h breaks C++ builds

#54744

coexistence of libressl, libressl-devel, openssl, boringssl, etc.

#54836

defect: clang-3.7 fails to build on Snow Leopard, Mac OS X 10.6.8, in openmp variant

#54972

clang-4.0 @4.0.1_2+analyzer+libstdcxx: patch warning

#55086

clang-4.0 w/ trace mode: Error running link command: Invalid argument (cmake bug?)

#55264

libressl @2.5.5: update to 2.6.5

#55308

llvm-5.0 does not include clang-tidy

#55322

clang-5.0 @5.0.0: ld: file not found: /opt/local/libexec/llvm-5.0/lib/clang/5.0.0/lib/darwin/libclang_rt.profile_osx.a

#55371

mplayer-devel @37869_2: Opportunistic linking to various packages

#55442

libunwind @3.9.1: UNREACHABLE executed!

#55443

libcxx, libcxxabi @3.9.1: All compilers are either blacklisted or unavailable

#55444

clang-3.8 and later: All compilers are either blacklisted or unavailable

#55705

Add +llvm60 to cctools and ld64

#55709

libcxx @5.0.1_1 build fails with gcc

#55720

lldb-6.0 won't compile with 10.11.6 default clang compiler

#55723

mplayer +nodvd fails

#56015

llvm-gcc42: Don't build with -Werror

#56255

clang-devel @devel-r329027: missing ClangTargets-release.cmake

#56336

Failed to configure llvm-5.0: configure failure: command execution failed

#56792

webkit2-gtk @2.20.3 +universal: error: use of undeclared identifiers 'TagBitsWasm' 'TagWasmMask'

#56944

Error: Failed to build ld64-127: command execution failed

#56983

xorg-server-devel : upgrade and +dri variants

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

#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

#32130

ffmpeg-devel: fatal error: when writing output to : Broken pipe

#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

#36981

gcc ports may not be UsingTheRightCompiler

#37020

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

#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')

#40464

libquicktime @1.2.4_7: build failure

#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

#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

#45678

libquicktime @1.2.4: build failure

#46040

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

#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

#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

#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

#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

#52585

libcxxabi -- attempts to add thread-local-storage (TLS) to <10.7

#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?

#53449

cctools 895 breaks port:audacity build

#53634

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

#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

#54632

ffmpeg, ffmpeg-devel: remove ASCII art from notes

#54633

ffmpeg, ffmpeg-devel: not distributable on Snow Leopard or Lion

#54661

Blu-Ray playback

#54773

port:libgcc/port:gcc7: proposed modifications, efficiency + libc++ support

#55166

port:ffmpeg should use --x86asmexe=EXE=${prefix}/bin/<assembler>

#55168

ffmpeg 3.4 VDA (VideoDecodeAcceleration) fix

#55171

ffmpeg-devel @20171024 breaks on Snow Leopard, Mac OS X 10.6.8, the ports opencv, transcode, and libquicktime-devel

#55198

ffmpeg @3.4: ld: cannot link directly with /System/Library/Frameworks//CoreImage.framework/CoreImage

#55410

gcc7 @7.2.0 does not build on Mac OS X 10.6.8, Snow Leopard, because of "Undefined symbols for architecture x86_64"

#55523

opencv @3.2.0_1: Build failure with ffmpeg-devel @20171210

#56223

clang-6.0 unused regex?

#56250

Failed to configure gtk3 while installing wine

#56739

gildas fails to install due to unexpected token