I first install the gcc-4.2.4 .<br>then I set CC and CXX <br>     export CC= "path of my gcc-4.2.4"<br>     export CXX="path of my g++-4.2.4"<br><br>after that  , I config and make .<br>error occur like this :<br>/home/ws/software/gcc-4-2/bin/gcc -c   -g -O2 -DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Wold-style-definition -Wmissing-format-attribute    -DHAVE_CONFIG_H -I. -Ijava -I../../llvm-gcc4.2-2.5.source/gcc -I../../llvm-gcc4.2-2.5.source/gcc/java -I../../llvm-gcc4.2-2.5.source/gcc/../include -I../../llvm-gcc4.2-2.5.source/gcc/../libcpp/include  -I../../llvm-gcc4.2-2.5.source/gcc/../libdecnumber -I../libdecnumber -I/home/ws/software/build-llvm-gcc/../build-llvm//include -I/home/ws/software/llvm-2.5/include -DENABLE_LLVM -I/home/ws/software/build-llvm/../llvm-2.5/include  -D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS   ../../llvm-gcc4.2-2.5.source/gcc/java/lang.c -o java/lang.o<br>../../llvm-gcc4.2-2.5.source/gcc/java/lang.c: In function¡®java_init¡¯ÖĞ£º<br>../../llvm-gcc4.2-2.5.source/gcc/java/lang.c:378: error£º¡®force_align_functions_log¡¯not declare ( occur first in the function)<br>.............<br><br>what matter I only enable-language c, c++, ada tube java  ?<br><br><br><br><br><br>