Hello, I recently built and installed GCC 4.4.0 and then tried to build GhostScript 8.64 using it. The attempt failed with an error as in the Subject line (above). The last few lines from the output of make are below. btw, I ran the testsuite on the new compiler (the results are here): http://gcc.gnu.org/ml/gcc-testresults/2009-05/msg02684.html What am I doing wrong? Thanks for uour help. gcc -DHAVE_MKSTEMP -DHAVE_HYPOT -DHAVE_FILE64 -DHAVE_MKSTEMP64 -DHAVE_FONTCONFIG -O2 -Wall -Wstrict-prototypes -Wundef -Wmissing-declarations -Wmissing-prototypes -Wwrite-strings -Wno-strict-aliasing -Wdeclaration-after-statement -fno-builtin -fno-common -DHAVE_STDINT_H -DGX_COLOR_INDEX_TYPE="unsigned long long" -I./psi -I./obj -I./obj -I./base -o ./obj/iconfig.o -c ./obj/iconfig.c gcc -Wall -Wstrict-prototypes -Wundef -Wmissing-declarations -Wmissing-prototypes -Wwrite-strings -Wno-strict-aliasing -Wdeclaration-after-statement -fno-builtin -fno-common -DHAVE_STDINT_H -DGX_COLOR_INDEX_TYPE="unsigned long long" -O2 -Wall -Wstrict-prototypes -Wundef -Wmissing-declarations -Wmissing-prototypes -Wwrite-strings -Wno-strict-aliasing -Wdeclaration-after-statement -fno-builtin -fno-common -DHAVE_STDINT_H -DGX_COLOR_INDEX_TYPE="unsigned long long" -I./base -I./obj/ -Izlib ./base/mkromfs.c -o ./obj/mkromfs ./obj/compress.o ./obj/deflate.o ./obj/zutil.o ./obj/adler32.o ./obj/crc32.o ./obj/trees.o ./obj/gscdefs.o ./obj/gsmisc.o ./obj/gpmisc.o ./obj/gslibctx.o ./obj/gp_getnv.o ./obj/gp_unix.o ./obj/gp_unifs.o ./obj/gp_unifn.o ./obj/gp_stdia.o ./obj/gsutil.o -lm -ldl -lm -lstdc++ -lfontconfig /usr/local/gcc-4.4.0/lib/gcc/sparc-sun-solaris2.10/4.4.0/../../../libstdc++.so: undefined reference to `_Unwind_GetIPInfo@xxxxxxxxx' collect2: ld returned 1 exit status make: *** [obj/mkromfs] Error 1 make: Target `std' not remade because of errors. $ gcc -v Using built-in specs. Target: sparc-sun-solaris2.10 Configured with: /usr/local/src/gcc/src/gcc-4.4.0/configure --srcdir=/usr/local/src/gcc/src/gcc-4.4.0 --prefix=/usr/local/gcc-4.4.0 --with-gnu-as --with-as=/usr/local/bin/as --with-gnu-ld --with-ld=/usr/local/bin/ld --enable-languages=c,c++,fortran,java Thread model: posix gcc version 4.4.0 (GCC)