Joern Rennecke wrote: > Quoting Georg-Johann Lay: > >> The sed -e 's:\r::g' from above that tries to fix line endings has the >> problem that not all sed implementations are the same, i.e. some just do >> sed -e 's:r::g' and remove all r's. >> >> I searched some time how to accomplish this but did not find a neat >> solution. >> >> Can tr from roff be used? Is it a valid prerequisite for GCC? > > tr is already used in a number of places in Makefile.in. Note > that there is a distinction between tools required to rebuild > auto-generated files, and tool required to build GCC assuming all > auto-generated files are up-to-date. You should make it so that tr > is not used if the timestamps indicate that the documentation > is up-to-date.
The rebuild/nag part is inside the backend's t-snip so that only people (re)building that target will trigger the rebuild and checking > Look for the s-tm-texi rule in Makefile.in, it normalizes the line ending > using tr (while taking care of a Solaris oddity), before comparing it to > the existing version. Thanks, the patch uses the same technique now: http://gcc.gnu.org/ml/gcc-patches/2012-05/msg01982.html Johann
