Archive for the ‘OS X’ Category
OSError with duplicity 0.6.19 on OpenBSD and OS X
Sometime around duplicity 0.6.15 (ish) I started running into OSError exceptions that I just didn’t have time to track down. I’ve finally made time, though, and it wasn’t too hard to track down the culprit. I didn’t realize it at the time, but this only affects non-privileged users running duplicity. tl;dr choose a different TMPDIR.
Grand Perspective for Disk Usage
I’ll create a theme for today by sharing another program that I love: Grand Perspective. This one is OS X freeware that uses a tree map for visualizing your disk usage. You really wouldn’t know it by the poor choice of screen shots on their site, but this program is incredibly useful for making obvious where all of my disk space went.
Bigger files get correspondingly bigger rectangles, so it becomes immediately obvious where that huge but forgotten download is hiding or which VM needs a good shrinking. If you give it a try, be sure to play around with zoom and focus.
Installing Apache modules on Mac OS X Leopard
Installing mod_python on my mac laptop was surprisingly difficult. My first attempt of simply compiling it with {LD,C}FLAGS="-arch ppc -arch ppc64 -arch i386 -arch x86_64" failed in a bit of a strange way. It appeared to create a universal binary for the DSO, but apache failed to load it with the following error message:
httpd: Syntax error on line 118 of /Volumes/Workplace/pflex/2.1.x/Build/build/ValidationWeb/apache/etc/httpd.conf: Syntax error on line 22 of /Volumes/Workplace/pflex/2.1.x/Build/build/ValidationWeb/apache/etc/platform/i386.Mac OS X/httpd.conf: Can't locate API module structure `python_module' in file /usr/libexec/apache2/mod_python.so: dlsym(0x100201000, python_module): symbol not found
As it turns out, the build process was respecting the LDFLAGS & CFLAGS for processes called directly by make, but it was not passing them on to apxs. Adding the following to src/Makefile (after the initial INCLUDE declaration) worked to put apxs on the right track:
INCLUDES+= -Wc,-arch -Wc,ppc -Wc,-arch -Wc,ppc64 -Wc,-arch -Wc,i386 -Wc,-arch -Wc,x86_64
INCLUDES+= -Wl,-arch -Wl,ppc -Wl,-arch -Wl,ppc64 -Wl,-arch -Wl,i386 -Wl,-arch -Wl,x86_64
So, the procedure to install mod_python is:
- Download source here
- ./configure
- Add above two lines to src/Makefile
- make
- sudo make install or sudo make install_dso
tech stuff. 