From 07ed3ac992d5086dcd47273236ad72e496d9620f Mon Sep 17 00:00:00 2001
From: Tomasz Kramkowski <tk@the-tk.com>
Date: Thu, 5 Aug 2021 12:44:41 +0100
Subject: Separate gcc specific warnings

---
 configure | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

(limited to 'configure')

diff --git a/configure b/configure
index a4bb8d5..b656155 100755
--- a/configure
+++ b/configure
@@ -9,13 +9,14 @@ Options:
   -C cflag    Append cflag to CFLAGS
   -L ldflag   Append ldflag to LDFLAGS
   -P cppflag  Append cppflag to CPPFLAGS
+  -W profile  Enable compiler specific warnings (clang|gcc) (overrides -w)
   -c when     Enable compiler colours (always|auto|off) [default: auto]
   -d          Enable debugging flags
   -e          Enable -Werror
   -h          Show this help
   -o          Enable optimisation flags
   -v          Print results of configuration
-  -w          Enable warning flags
+  -w          Enable warning flags (overrides -W)
 Environment:
   CC          C compiler
 EOF
@@ -25,20 +26,21 @@ exec 3>config.rc
 conf() { echo "$1" >&3; }
 
 colour=auto
-while getopts B:C:L:P:c:dehovw opt; do
+while getopts B:C:L:P:W:c:dehovw opt; do
 	qopt=${OPTARG@Q}
 	case $opt in
 	B) conf "LDLIBS+=($qopt)";;
 	C) conf "CFLAGS+=($qopt)";;
 	L) conf "LDFLAGS+=($qopt)";;
 	P) conf "CPPFLAGS+=($qopt)";;
+	W) warn="$OPTARG";;
 	c) colour="$OPTARG";;
 	d) conf "debug=1" >&3;;
 	e) conf "werror=1" >&3;;
 	h) usage; help; exit;;
 	o) conf "optimise=1" >&3;;
 	v) conf "verbose=1" >&3;;
-	w) conf "warn=1" >&3;;
+	w) warn=1;;
 	?) usage >&2; exit 1;;
 	esac
 done
@@ -49,5 +51,9 @@ case "$colour" in
 	off) conf "colour=0";;
 	*) usage >&2; exit 1;;
 esac
+case "$warn" in
+	1|clang|gcc) conf "warn=$warn";;
+	?*) usage >&2; exit 1;;
+esac
 
 if [[ $CC ]]; then conf "CC=${CC@Q}"; fi
-- 
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