DEFAULT_LIBS = -lCstd -lCrun -lm -lc

1. Ensure that system environment variable PATH includes the location of all the compilers mentioned above.

2. Download the source code of ICU version 4.2 for C from http://site.icu-project.org/download

3. Add the following line in the configuration file source/config/mh-solaris to include the appropriate C++ runtime libraries:

4. At the shell prompt, execute the following commands:

   gunzip -d < icu4c-4_2_1-src.tgz | tar -xf -
   cd icu/source/
   chmod +x runConfigureICU configure install-sh
   ./configure --with-library-bits=64 --enable-threads=no LDFLAGS="-lCstd -lCrun"
   gmake
   gmake check
   gmake install

5. Set the environment variable LD_LIBRARY_PATH to point to the location of ICU. Solaris uses the environment variable LD_LIBRARY_PATH to search for dynamically linked libraries to be loaded.