get rid of some more gnulinuxisms

to get builds on openbsd going

Makefile

@@ -43,7 +43,7 @@ test-upgrade: build
 
 # needed for "check" target
 install-staticcheck:
-	go install honnef.co/go/tools/cmd/staticcheck@latest
+	CGO_ENABLED=0 go install honnef.co/go/tools/cmd/staticcheck@latest
 
 check:
 	CGO_ENABLED=0 go vet -tags integration
@@ -52,25 +52,25 @@ check:
 	CGO_ENABLED=0 go vet -tags errata rfc/errata.go
 	CGO_ENABLED=0 go vet -tags xr rfc/xr.go
 	GOARCH=386 CGO_ENABLED=0 go vet ./...
-	staticcheck ./...
+	CGO_ENABLED=0 staticcheck ./...
-	staticcheck -tags integration
+	CGO_ENABLED=0 staticcheck -tags integration
-	staticcheck -tags website website/website.go
+	CGO_ENABLED=0 staticcheck -tags website website/website.go
-	staticcheck -tags link rfc/link.go
+	CGO_ENABLED=0 staticcheck -tags link rfc/link.go
-	staticcheck -tags errata rfc/errata.go
+	CGO_ENABLED=0 staticcheck -tags errata rfc/errata.go
-	staticcheck -tags xr rfc/xr.go
+	CGO_ENABLED=0 staticcheck -tags xr rfc/xr.go
 
 # needed for check-shadow
 install-shadow:
-	go install golang.org/x/tools/go/analysis/passes/shadow/cmd/shadow@latest
+	CGO_ENABLED=0 go install golang.org/x/tools/go/analysis/passes/shadow/cmd/shadow@latest
 
 # having "err" shadowed is common, best to not have others
 check-shadow:
-	go vet -vettool=$$(which shadow) ./... 2>&1 | grep -v '"err"'
+	CGO_ENABLED=0 go vet -vettool=$$(which shadow) ./... 2>&1 | grep -v '"err"'
-	go vet -tags integration -vettool=$$(which shadow) 2>&1 | grep -v '"err"'
+	CGO_ENABLED=0 go vet -tags integration -vettool=$$(which shadow) 2>&1 | grep -v '"err"'
-	go vet -tags website -vettool=$$(which shadow) website/website.go 2>&1 | grep -v '"err"'
+	CGO_ENABLED=0 go vet -tags website -vettool=$$(which shadow) website/website.go 2>&1 | grep -v '"err"'
-	go vet -tags link -vettool=$$(which shadow) rfc/link.go 2>&1 | grep -v '"err"'
+	CGO_ENABLED=0 go vet -tags link -vettool=$$(which shadow) rfc/link.go 2>&1 | grep -v '"err"'
-	go vet -tags errata -vettool=$$(which shadow) rfc/errata.go 2>&1 | grep -v '"err"'
+	CGO_ENABLED=0 go vet -tags errata -vettool=$$(which shadow) rfc/errata.go 2>&1 | grep -v '"err"'
-	go vet -tags xr -vettool=$$(which shadow) rfc/xr.go 2>&1 | grep -v '"err"'
+	CGO_ENABLED=0 go vet -tags xr -vettool=$$(which shadow) rfc/xr.go 2>&1 | grep -v '"err"'
 
 fuzz:
 	go test -fuzz FuzzParseSignature -fuzztime 5m ./dkim
@@ -125,24 +125,24 @@ install-js0:
 	npm install --ignore-scripts --save-dev --save-exact typescript@5.1.6
 
 webmail/webmail.js: lib.ts webmail/api.ts webmail/lib.ts webmail/webmail.ts
-	./tsc.sh $@ $^
+	./tsc.sh $@ lib.ts webmail/api.ts webmail/lib.ts webmail/webmail.ts
 
 webmail/msg.js: lib.ts webmail/api.ts webmail/lib.ts webmail/msg.ts
-	./tsc.sh $@ $^
+	./tsc.sh $@ lib.ts webmail/api.ts webmail/lib.ts webmail/msg.ts
 
 webmail/text.js: lib.ts webmail/api.ts webmail/lib.ts webmail/text.ts
-	./tsc.sh $@ $^
+	./tsc.sh $@ lib.ts webmail/api.ts webmail/lib.ts webmail/text.ts
 
 webadmin/admin.js: lib.ts webadmin/api.ts webadmin/admin.ts
-	./tsc.sh $@ $^
+	./tsc.sh $@ lib.ts webadmin/api.ts webadmin/admin.ts
 
 webaccount/account.js: lib.ts webaccount/api.ts webaccount/account.ts
-	./tsc.sh $@ $^
+	./tsc.sh $@ lib.ts webaccount/api.ts webaccount/account.ts
 
 frontend: node_modules/.bin/tsc webadmin/admin.js webaccount/account.js webmail/webmail.js webmail/msg.js webmail/text.js
 
 install-apidiff:
-	go install golang.org/x/exp/cmd/apidiff@v0.0.0-20231206192017-f3f8817b8deb
+	CGO_ENABLED=0 go install golang.org/x/exp/cmd/apidiff@v0.0.0-20231206192017-f3f8817b8deb
 
 genapidiff:
 	./apidiff.sh
@@ -157,17 +157,17 @@ genwebsite:
 	./genwebsite.sh
 
 buildall:
-	GOOS=linux GOARCH=arm go build
+	CGO_ENABLED=0 GOOS=linux GOARCH=arm go build
-	GOOS=linux GOARCH=arm64 go build
+	CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build
-	GOOS=linux GOARCH=amd64 go build
+	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build
-	GOOS=linux GOARCH=386 go build
+	CGO_ENABLED=0 GOOS=linux GOARCH=386 go build
-	GOOS=openbsd GOARCH=amd64 go build
+	CGO_ENABLED=0 GOOS=openbsd GOARCH=amd64 go build
-	GOOS=freebsd GOARCH=amd64 go build
+	CGO_ENABLED=0 GOOS=freebsd GOARCH=amd64 go build
-	GOOS=netbsd GOARCH=amd64 go build
+	CGO_ENABLED=0 GOOS=netbsd GOARCH=amd64 go build
-	GOOS=darwin GOARCH=amd64 go build
+	CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build
-	GOOS=dragonfly GOARCH=amd64 go build
+	CGO_ENABLED=0 GOOS=dragonfly GOARCH=amd64 go build
-	GOOS=illumos GOARCH=amd64 go build
+	CGO_ENABLED=0 GOOS=illumos GOARCH=amd64 go build
-	GOOS=solaris GOARCH=amd64 go build
+	CGO_ENABLED=0 GOOS=solaris GOARCH=amd64 go build
-	GOOS=aix GOARCH=ppc64 go build
+	CGO_ENABLED=0 GOOS=aix GOARCH=ppc64 go build
-	GOOS=windows GOARCH=amd64 go build
+	CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build
 	# no plan9 for now

gendoc.sh

@@ -26,7 +26,7 @@ any parameters. Followed by the help and usage information for each command.
 
 EOF
 
-./mox 2>&1 | sed -e 's/^usage: */\t/' -e 's/^  */\t/'
+./mox 2>&1 | sed -e 's/^usage: */	/' -e 's/^  */	/'
 echo
 ./mox helpall 2>&1
 
@@ -80,14 +80,14 @@ See https://pkg.go.dev/github.com/mjl-/sconf for details.
 # mox.conf
 
 EOF
-./mox config describe-static | sed 's/^/\t/'
+./mox config describe-static | sed 's/^/	/'
 
 cat <<EOF
 
 # domains.conf
 
 EOF
-./mox config describe-domains | sed 's/^/\t/'
+./mox config describe-domains | sed 's/^/	/'
 
 cat <<EOF
 
@@ -102,7 +102,7 @@ EOF
 for ex in $(./mox config example); do
 	echo '# Example '$ex
 	echo
-	./mox config example $ex | sed 's/^/\t/'
+	./mox config example $ex | sed 's/^/	/'
 	echo
 done
 

rfc/fetch.sh

@@ -8,13 +8,13 @@ fi
 
 set -e
 
-for number in $(sed -n 's/^\([0-9][0-9]*\)[ \t].*$/\1/p' index.txt); do
+for number in $(sed -n 's/^\([0-9][0-9]*\)[ 	].*$/\1/p' index.txt); do
 	if ! test -f "$number"; then
 		curl https://www.rfc-editor.org/rfc/rfc$number.txt >$number || rm $number
 	fi
 done
 
-for name in $(sed -n 's/^\([0-9][0-9]*-eid[0-9][0-9]*\)[ \t].*$/\1/p' index.txt); do
+for name in $(sed -n 's/^\([0-9][0-9]*-eid[0-9][0-9]*\)[ 	].*$/\1/p' index.txt); do
 	if ! test -f "$name"; then
 		rfc=$(echo $name | cut -f1 -d-)
 		eid=$(echo $name | cut -f2 -d-)

tsc.sh

@@ -8,5 +8,5 @@ set -euo pipefail
 out=$1
 shift
 ./node_modules/.bin/tsc --noEmitOnError true --pretty false --newLine lf --strict --allowUnreachableCode false --allowUnusedLabels false --noFallthroughCasesInSwitch true --noImplicitReturns true --noUnusedLocals true --noImplicitThis true --noUnusedParameters true --target es2022 --module none --outFile $out.spaces "$@" | sed -E 's/^([^\(]+)\(([0-9]+),([0-9]+)\):/\1:\2:\3: /'
-unexpand -t4 <$out.spaces >$out
+CGO_ENABLED=0 go run unexpand.go -t 4 <$out.spaces >$out
 rm $out.spaces

unexpand.go

@@ -0,0 +1,79 @@
+//go:build tools
+// +build tools
+
+// For unexpand the 4 spaces that the typescript compiler outputs into tabs.
+// Not all unexpand commands implement the -t flag (openbsd).
+package main
+
+import (
+	"bufio"
+	"flag"
+	"fmt"
+	"io"
+	"log"
+	"os"
+)
+
+func xcheckf(err error, format string, args ...any) {
+	if err != nil {
+		log.Fatalf("%s: %s", fmt.Sprintf(format, args...), err)
+	}
+}
+
+func main() {
+	log.SetFlags(0)
+	var width int
+	flag.IntVar(&width, "t", 8, "tab width")
+	flag.Parse()
+	flag.Usage = func() {
+		log.Print("usage: unexpand [-t tabwidth] < input.spaces >output.tabs")
+		flag.PrintDefaults()
+		os.Exit(2)
+	}
+	if flag.NArg() != 0 {
+		flag.Usage()
+	}
+	if width <= 0 {
+		flag.Usage()
+	}
+
+	r := bufio.NewReader(os.Stdin)
+	w := bufio.NewWriter(os.Stdout)
+
+	nspace := 0
+	start := true
+
+	flush := func() {
+		for ; nspace > 0; nspace-- {
+			err := w.WriteByte(' ')
+			xcheckf(err, "write")
+		}
+	}
+	write := func(b byte) {
+		err := w.WriteByte(b)
+		xcheckf(err, "write")
+	}
+
+	for {
+		b, err := r.ReadByte()
+		if err == io.EOF {
+			break
+		}
+		xcheckf(err, "read")
+
+		if start && b == ' ' {
+			nspace++
+			if nspace == width {
+				write('\t')
+				nspace = 0
+			}
+		} else {
+			flush()
+			write(b)
+			start = b == '\n'
+		}
+	}
+	flush()
+	err := w.Flush()
+	xcheckf(err, "flush output")
+}