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build: Only use ANSI colour sequences if stdout is a terminal

Browse Source 
https://stackoverflow.com/a/10022396
This commit is contained in:
Richard W.M. Jones
2025-03-11 21:04:20 +00:00
parent 3a8947323b
commit 21ae4c37b7
1 changed files with 8 additions and 6 deletions
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14
configure.ac
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@@ -31,12 +31,14 @@ term_bold=""
term_red=""
term_green=""
term_restore=""
AS_CASE(["$TERM"],
[xterm*|vt220*], [
term_bold="$(printf "\e@<:@1m")"
term_red="$(printf "\e@<:@22;31m")"
term_green="$(printf "\e@<:@22;32m")"
term_restore="$(printf "\e@<:@0m")"
AS_IF([test -t 1], [
AS_CASE(["$TERM"],
[xterm*|vt220*], [
term_bold="$(printf "\e@<:@1m")"
term_red="$(printf "\e@<:@22;31m")"
term_green="$(printf "\e@<:@22;32m")"
term_restore="$(printf "\e@<:@0m")"
])
])
m4_define([HEADING],
[AS_ECHO