Todd, On Wed, 19 May 2010, Todd Rinaldo wrote: > I'm writing to report a discrepancy in > http://gcc.gnu.org/install/prerequisites.html > > I just discovered that if gmp is boot strapped during gcc build and an > older m4 exists, when gmp calls flex, it will fail during configure > with: > > checking for flex... flex > checking lex output file root... configure: error: cannot find output from > flex; giving up > > I mention this because the prerequisites page specifies m4 as optional > if you're just building gcc. m4 appears to have a minimal requirement if > gmp is being boot strapped.
thanks for the report, Todd. You mention m4, yet the output you show is around flex? I can update our documentation, but need more details and confirmation by the respective GCC maintainers on what exactly to adjust. Gerald
