Shell script changes for portability

1 files changed, 9 insertions, 4 deletions

diff --git a/bootstrap.sh b/bootstrap.sh
index b193bbd..1478e1f 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -1,4 +1,4 @@
-#!/bin/env sh
+#!/bin/sh
 
 set -eo pipefail
 
@@ -14,18 +14,23 @@ if test -n "$V"; then
 fi
 src=$(find src/ -name '*.c')
 X() {
-    echo "> $@" | (test -n "$V" && cat || sed -s 's/\([^ ]\+\.c \?\)\{10\}$/.../')
+    echo "> $@" | (test -n "$V" && cat || sed 's/\([^ ]\+\.c \?\)\{10\}$/.../')
     $@
 }
+md5=md5sum
+if ! $(command -v md5sum > /dev/null); then
+    md5=md5
+fi
+
 echo "== Stage 0 (compiling with $cc) =="
 X $cc $cflags -o antcc0 $src
 echo
 echo "== Stage 1 (compiling with stage 0 output) =="
 X ./antcc0 $opt $cflags -o antcc1 $src
-X md5sum antcc1
+X $md5 antcc1
 echo
 echo "== Stage 2 (compiling with stage 1 output) =="
 X ./antcc1 $opt $cflags -o antcc2 $src
-X md5sum antcc2
+X $md5 antcc2
 
 (X cmp antcc1 antcc2) && echo ok. || (echo 'bootstrap FAIL!'; exit 1)