[2010-11-09 11:42:08] ./installer -a /Users/mpearson/.rvm/rubies/ree-1.8.7-2010.02  --dont-install-useful-gems
./configure: line 4633: : command not found
rm: conftest.dSYM: is a directory
rm: conftest.dSYM: is a directory
configure: WARNING: Could not find the PC.  Will not output failed addresses...
In file included from src/base/commandlineflags.h:55,
                 from src/tcmalloc.cc:114:
./src/base/basictypes.h: In constructor ‘AssignAttributeStartEnd::AssignAttributeStartEnd(const char*, char**, char**)’:
./src/base/basictypes.h:251: warning: ‘_dyld_present’ is deprecated (declared at /usr/include/mach-o/dyld.h:237)
./src/base/basictypes.h:251: warning: ‘_dyld_present’ is deprecated (declared at /usr/include/mach-o/dyld.h:237)

... etc ...