Hello, I thought I would share this in case anyone else gets this error trying to compile GCC 4.7.0 on Linux: On a RedHat 8 system we have installed the distribution defaults: - binutils 2.13.90.0.18 - gcc 3.2 Trying to compile GCC 4.7.0 will eventually result in an error: genrecog.s: Assembler messages: genrecog.s:17481: Error: bignum invalid genrecog.s:17491: Error: bignum invalid genrecog.s:17497: Error: bignum invalid Configuration was done with the default target: i686-pc-linux-gnu The assembler code generated from genrecog.c looks like this: 17481 .sleb128 -9223372036854775808 This is actually a valid big number but there is a bug in the assembler that produces this error. I also got the same error trying to compile with GCC-3.4.6 Look at: /usr/bin/as --version I downloaded and built a more recent version binutils. binutils-2.16.1 is the first version that works. bintutils-2.15 still has the bug. GNU binutils as prerequisites point to host/target specific. Perhaps will be useful to mention binutils>=2.16 at: http://gcc.gnu.org/install/specific.html#x-x-linux-gnu I couldn't find the specific gas bug but there is this similar issue here: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38896 So the summary is, if you get an error like the above, look at the version of binutils and if it is < 2.16 try updating it. Thanks! Mihai
