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From: chrisc_at_[hidden]
Date: 2006-01-05 14:48:51

Hi -- I am trying to build boost on a 64-bit AMD Opteron but make it yield
32 bit code. The reason for this is I want smaller executables and memory
footprint (Side note: if you do pmap on even a small hello world program
on an 64 bit Opteron it requires 10 MB of virtual memory vs. 1.2 MB if
compiled in 32 bit mode -- Can you believe it?).

I have tried to edit the tools/build/gcc-tool.bjam file to add the -m32
compiler option to LINKFLAGS, CFLAGS, CPPFLAGS and CXXFLAGS. However, in
doing so, it generates a number of compiler errors.

Below is a sample (I am using GCC 4.0.2 under SUSE Linux).

Any help would be most appreciated!!

thank you!,

bjam "-sTOOLS=gcc" install
Building Boost.Regex with the optional Unicode/ICU support disabled.
Please refer to the Boost.Regex documentation for more information
(and if you don't know what ICU is then you probably don't need it).
*** If you don't need Boost.Python, you can ignore this section ***
*** pass --without-python to suppress this message in the future ***

skipping Boost.Python library build due to missing or incorrect

couldn't find Python.h in "/usr/local/include/python2.2"

You can configure the location of your python installation by setting:
PYTHON_ROOT - currently "/usr/local"
PYTHON_VERSION - The 2-part python Major.Minor version number (e.g.
                  "2.2", NOT "2.2.1") - currently "2.2"

The following are automatically configured from PYTHON_ROOT if not
otherwise set:

     PYTHON_LIB_PATH - path to Python library object; currently
     PYTHON_INCLUDES - path to Python #include directories; currently
...found 13317 targets...
...updating 1523 targets...
MkDir1 bin
MkDir1 bin/boost
MkDir1 bin/boost/libs
MkDir1 bin/boost/libs/test
MkDir1 bin/boost/libs/test/build
MkDir1 bin/boost/libs/test/build/
MkDir1 bin/boost/libs/test/build/
MkDir1 bin/boost/libs/test/build/
g++: no input files

     set -e
     "g++" -c -Wall -ftemplate-depth-255 -DBOOST_TEST_NO_AUTO_LINK=1 -g
-m32; flags gcc LINKFLAGS <debug-symbols>on -m32 -fno-inline -fPIC
-I"bin/boost/libs/test/build" -I "/home/carother/32-Bit/boost_1_33_0"
     "/usr/bin/objcopy" --set-section-flags .debug_str=contents,debug
...failed gcc-C++-action

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