Hello. I come over via https://github.com/onetrueawk/awk/issues/228. For years the nawk build causes terminal mess in the unshare(1)d fakeroot(1) package build environment of the Linux distro i use (CRUX; sh(1) based). It looks like that:
... bison -d awkgram.y awkgram.yawkgram.y: : warning:warning:3399;49m;49m 62 shift/reduce conflicts62 shift/reduce conflicts [ [ 7 reduce/reduce conflicts] [8;id=5]984;dicd7=750909046d1c67f7101050b63196dfb1d1050b03090d0b0d10;0h0t0t0p0s0:1/;/hwtwtwp.sg:n/u/.wowrwg./gsnouf.towragr/es/obfitswoanr/em/abniusaoln//hmtamnlu_a nlo/dhet/mDli_angondoes/tDiicasg.nhotsmtli#cWsc.ohntfmlli#cWtcso-nrfrl\c-Wconflicts-rrt[-3r9r;\9-Wconflicts-rrm389;;;4\m] awkgram.y: note:note: erun with option '-Wcounterexamples' to generate conflict counterexamples[f111d207]580;0i0d00=050919;h4ttdpcs7:/7/0w0w0w.gnu.org/softw6a1r6ef/1b1i1sdo2n/ma0nu7a4l2/0h0t0 39;49m rerun with option '-Wcounterexamples' to generate conflict counterexamplescts-rri[o3n9/;m4a9nmu]l8/;h;t\l_no]de cc -g -Wall -pedantic -Wcast-qual -O2 -c -o [.] ... From warning:warning it is purple, from note:note turquoise, then purple, then .. etc. The terminal is not properly restored, i need to do "tput reset" to see the cursor again. The screen is flushed, ie cleared initially, too. Note that if i do ls(1) --color=yes in the same environment, colors are ok. (However, vim(1) only starts up as rvim.) It is like that for years, i can reproduce it a hundred percent (also see the nawk issue). Todd Miller said in the issue that bison uses some GNU specific library for these terminal sequences, but i have zero idea from neither. From a fast glance into the very large bison codebase it seems quite logical (if it really is that isatty(STDERR) thing). I only wanted to report this issue, finally. --steffen | |Der Kragenbaer, The moon bear, |der holt sich munter he cheerfully and one by one |einen nach dem anderen runter wa.ks himself off |(By Robert Gernhardt)