On 15 August 2012 18:32, Ron Stubbs wrote: > Hi, > > I get the following compiler error when building GCC 4.8 > (gcc-4.8-20120812) on an x86_64 system running Scientific Linux 6.2. > > ========================================================= > build/gengtype.o: In function `create_optional_field_': > /opt/gcc-4.8-20120812/host-x86_64-unknown-linux-gnu/gcc/../.././gcc/gengtype.c:854: > undefined reference to `lexer_line' I think this means you need to install Flex 2.5.4 or later. http://gcc.gnu.org/install/prerequisites.html documents it as "Necessary to build GCC during development because the generated output files are not included in the SVN repository. They are included in releases. "
