gcc-scc.sh: parse options using getopts - scc - simple c99 compiler
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---
DIR commit 8b8b25fa24223ca929a77253d26c76b3c596ffd6
DIR parent c31a24c04de5785a76725ea7e2fea652e192b107
HTML Author: Avi Halachmi (:avih) <avihpit@yahoo.com>
Date: Sun, 15 Feb 2026 22:42:44 +0200
gcc-scc.sh: parse options using getopts
Previously, the options parsing code rejected some valid inputs,
such as -ofile (in one arg).
Now we use standarg getopts which conforms to the POSIX syntax
guidelines.
Additionally, improve the error message on unknown option:
- print to stderr instead of stdout.
- quote it (otherwise these are globs...).
- Add spaces between the options (still less than 70 chars).
Diffstat:
M src/libc/gcc-scc.sh | 38 ++++++++++++++-----------------
1 file changed, 17 insertions(+), 21 deletions(-)
---
DIR diff --git a/src/libc/gcc-scc.sh b/src/libc/gcc-scc.sh
@@ -2,38 +2,34 @@
set -e
-for i
+while getopts gr:a:s:o:c o
do
- case "$i" in
- -g)
- shift
+ case $o in
+ g)
+ # ignored silently
;;
- -r)
- root=$2
- shift 2
+ r)
+ root=$OPTARG
;;
- -a)
- abi=$2
- shift 2
+ a)
+ abi=$OPTARG
;;
- -s)
- sys=$2
- shift 2
+ s)
+ sys=$OPTARG
;;
- -o)
- out=$2
- shift 2
+ o)
+ out=$OPTARG
;;
- -c)
- onlycc=1;
- shift
+ c)
+ onlycc=1
;;
- -*)
- echo usage: gcc-scc [-o outfile][-c][-r root][-a abi][-s sys] file
+ *)
+ echo >&2 "usage: gcc-scc [-o outfile] [-c] [-r root] [-a abi] [-s sys] file"
exit 1
;;
esac
done
+shift $((OPTIND-1))
sys=${sys:-`uname | tr 'A-Z' 'a-z'`}
abi=${abi:-amd64}