Hello, I'm using an Intel P4 PC, with a Debian 3.1 OS and I'm trying to install a tool (FUNCO - it measures functional cohesion) that uses a slightly modified version of gcc 2.6.3. As I was installing this modified gcc 2.6.3, I faced the following error after entering the command 'make LANGUAGES=c' : " ./xgcc -B./ -DIN_GCC -DPOSIX -g -I./include -DNO_MEM -DNO_LONG_DOUBLE_IO -O0 -I. -c ./enquire.c In file included from /usr/include/libio.h:32, from /usr/include/stdio.h:72, from ./enquire.c:390: /usr/include/_G_config.h:55: unknown machine mode '_G_int16_t' /usr/include/_G_config.h:56: unknown machine mode '_G_int32_t' /usr/include/_G_config.h:57: unknown machine mode '_G_uint16_t' /usr/include/_G_config.h:58: unknown machine mode '_G_uint32_t' make: *** [enquire.o] Error 1 " This is the sequence of includes 1. File 'enquire.c' includes 'stdio.h' 2. File 'stdio.h' includes 'libio.h' 3. File 'libio.h' includes '_G_config.h' These are the definitions in the _G_config.h: " typedef int _G_int16_t __attribute__ ((__mode__ (__HI__))); typedef int _G_int32_t __attribute__ ((__mode__ (__SI__))); typedef unsigned int _G_uint16_t __attribute__ ((__mode__ (__HI__))); typedef unsigned int _G_uint32_t __attribute__ ((__mode__ (__SI__))); " Can anyone help me with this matter? Your help is highly appreciated. Thank you in advance. Walid Bahsow