After making the changes suggested earlier I now get this result :

. . . /usr/local/gcc4/bin/g++ -DHAVE_CONFIG_H -I. -I../.. -I../../src -I../../src -I../../tests -I../../utils -DNDEBUG=1 -I/usr/local/include -g -O2 -march=i386 -frounding-math -march=i386 -malign-double -mpreferred-stack-boundary=8 -m32 -O3 -Qy -fexceptions -D_TS_ERRNO -march=i386 -malign-double -mpreferred-stack-boundary=8 -m32 -O3 -Qy -fexceptions -D_TS_ERRNO -W -Wall -MT partiallyreducedproduct4.o -MD -MP -MF .deps/partiallyreducedproduct4.Tpo -c -o partiallyreducedproduct4.o partiallyreducedproduct4.cc mv -f .deps/partiallyreducedproduct4.Tpo .deps/partiallyreducedproduct4.Po /bin/bash ../../libtool --tag=CXX --mode=link /usr/local/gcc4/bin/g++ -g -O2 -march=i386 -frounding-math -march=i386 -malign-double -mpreferred-stack-boundary=8 -m32 -O3 -Qy -fexceptions -D_TS_ERRNO -march=i386 -malign-double -mpreferred-stack-boundary=8 -m32 -O3 -Qy -fexceptions -D_TS_ERRNO -W -Wall -o partiallyreducedproduct4 partiallyreducedproduct4.o ../../utils/libppl_utils.a ../../tests/libppl_tests.a ../../src/libppl.la -lm -L/usr/local/lib -lgmpxx -L/usr/local/lib -lgmp -R/usr/local/lib -R/usr/local/lib libtool: link: /usr/local/gcc4/bin/g++ -g -O2 -march=i386 -frounding-math -march=i386 -malign-double -mpreferred-stack-boundary=8 -m32 -O3 -Qy -fexceptions -D_TS_ERRNO -march=i386 -malign-double -mpreferred-stack-boundary=8 -m32 -O3 -Qy -fexceptions -D_TS_ERRNO -W -Wall -o .libs/partiallyreducedproduct4 partiallyreducedproduct4.o ../../utils/libppl_utils.a ../../tests/libppl_tests.a ../../src/.libs/libppl.so -L/usr/local/lib /usr/local/lib/libgmpxx.so /usr/local/gcc4/lib/libstdc++.so -lm /usr/local/lib/libgmp.so -Wl,-R -Wl,/usr/local/lib -Wl,-R -Wl,/usr/local/gcc4/lib ld: warning: file /usr/local/gcc4/lib/gcc/i386-pc-solaris2.8/4.4.4/../../../libstdc++.so: linked to /usr/local/gcc4/lib/libstdc++.so: attempted multiple inclusion of file make[3]: Leaving directory `/export/medusa/dclarke/build/GCC/4.5.2-RC/ppl/i386/ppl-0.10.2.002/tests/Partially_Reduced_Product' make check-TESTS make[3]: Entering directory `/export/medusa/dclarke/build/GCC/4.5.2-RC/ppl/i386/ppl-0.10.2.002/tests/Partially_Reduced_Product' Cannot open `ascii_dump_load1.dat' for writing FAIL: asciidumpload1 PASS: directproduct1 PASS: directproduct2 PASS: directproduct3 PASS: directproduct4 PASS: directproduct5 PASS: directproduct6 PASS: partiallyreducedproduct1 PASS: partiallyreducedproduct2 PASS: partiallyreducedproduct3 PASS: partiallyreducedproduct4 ====================================== 1 of 11 tests failed Please report to ppl-devel@cs.unipr.it ====================================== make[3]: *** [check-TESTS] Error 1 make[3]: Leaving directory `/export/medusa/dclarke/build/GCC/4.5.2-RC/ppl/i386/ppl-0.10.2.002/tests/Partially_Reduced_Product' make[2]: *** [check-am] Error 2 make[2]: Leaving directory `/export/medusa/dclarke/build/GCC/4.5.2-RC/ppl/i386/ppl-0.10.2.002/tests/Partially_Reduced_Product' make[1]: *** [check-recursive] Error 1 make[1]: Leaving directory `/export/medusa/dclarke/build/GCC/4.5.2-RC/ppl/i386/ppl-0.10.2.002/tests' make: *** [check-recursive] Error 1