[Boost-build] Failed to get libboost_math.a for iPhone

Subject: [Boost-build] Failed to get libboost_math.a for iPhone
From: Justace Clutter (justacec_at_[hidden])
Date: 2012-08-14 10:14:39

I have been trying to get the Boost libraries compiled on my mac for iPhone
development.  I specifically want the math libraries.  I have found the
needed boost.sh build script that has been provided by other tinkerers and
that has worked pretty good.  It is just a wrapper around the regular boost
build system.  When I tell that script that I want the math library, it
runs the build script and then looks for the library "libboost_math".
 Unfortunately, after the build is completed (only requesting the math
library), there are four math libraries present:

libboost_math_c99.a
libboost_math_c99f.a
libboost_math_tr1.a
libboost_math_tr1f.a

The iPhone build script then fails because there is no "libboost_math.a"
library.  After the build should these be the final libraries?  Did my
build fail to complete and I just did not know it?

I am running this on OSX Snow Leopard with the latest XCode (4.4.1 I
think).  The build instructions that I have tried to follow are at:

http://www.danielsefton.com/2012/03/building-boost-1-49-with-clang-ios-5-1-and-xcode-4-3/

I did determine that I had to modify the boost.sh script to put "pch=off"
on the build lines to get the math library to compile...

I would paste the output of the script but I am currently at work and do
not have my personal computer in front of me.  This is more of a general
build concept question.

Thank you for any assistance.