Handle BSD checksum and file utilities (#14690)

* Handle BSD checksum utilities

The BSDs have different checksum utilities than GNU systems do. If we
don't see the GNU checksum utilities installed, use the BSD ones, as
their output is compatible enough.

Addresses part of GH-14688.

* Prefer GNU touch

BSD touch at least in macOS does not handle local timezone in the
timestamp (like 2024-06-27T10:26:23-03:00). As such, try GNU touch (as
ports systems almost always prefix with g if coreutils is installed) and
prefer that if available. It's not the end of the world though if GNU
touch isn't available, as BSD touch on some systems may support it, and
if it doesn't, then it's just timestamps, nothing too serious.

scripts/dev/gen_verify_stub

@@ -1,5 +1,9 @@
 #!/bin/bash
 
+# Handle GNU vs. BSD checksum utilities
+sha256sum="$(which sha256sum)"
+sha256sum="${sha256sum:-$(which shasum) -a 256}"
+
 if [ "x$1" == "x" ]
 then
 	echo "Usage: $0 <version> [email]"
@@ -41,7 +45,7 @@ done
 for TARBALL in "$PHPROOT/php-$RELEASE_VER.tar.bz2" "$PHPROOT/php-$RELEASE_VER.tar.gz" "$PHPROOT/php-$RELEASE_VER.tar.xz"
 do
 	basename $TARBALL
-	echo "SHA256 hash: `sha256sum $TARBALL | cut -d' ' -f1`";
+	echo "SHA256 hash: `$sha256sum $TARBALL | cut -d' ' -f1`";
 	echo PGP signature:
 	cat $TARBALL.asc
 	echo -e "\n"

scripts/dev/makedist

@@ -9,6 +9,14 @@
 tar="$(which gtar)"
 tar="${tar:-$(which tar)}"
 
+# Handle GNU vs. BSD checksum utilities
+md5sum="$(which md5sum)"
+md5sum="${md5sum:-$(which md5)}"
+
+# GNU touch is preferred since it handles local TZ in timestamps
+touch="$(which gtouch)"
+touch="${touch:-$(which touch)}"
+
 if [[ $($tar --version) == *"bsdtar"* ]]; then
   echo "Found bsdtar at $tar, but this script needs GNU tar."
   exit 1
@@ -169,8 +177,8 @@ fi
 # Reset the modification and access times of all files to be packaged.
 commitDate="$(git log -1 --format=%cI $treeish)"
 echo "makedist: Resetting the modification and access times of package files to $commitDate"
-touch -c -d"$commitDate" NEWS
-find . -exec touch -r NEWS -c {} \;
+"$touch" -c -d"$commitDate" NEWS
+find . -exec "$touch" -r NEWS -c {} \;
 
 cd ..
 
@@ -181,23 +189,23 @@ rm -rf "$prefix" "$prefix".tar.*
 
 echo "makedist: Creating $prefix.tar.gz archive."
 gzip -9 -k "$prefix".tar || exit 6
-md5sum "$prefix".tar.gz
+"$md5sum" "$prefix".tar.gz
 gzip -t "$prefix".tar.gz
 
 sync
 sleep 2
 
 echo "makedist: Creating $prefix.tar.bz2 archive."
 bzip2 -9 -k $prefix.tar || exit 7
-md5sum $prefix.tar.bz2
+"$md5sum" $prefix.tar.bz2
 bzip2 -t $prefix.tar.bz2
 
 sync
 sleep 2
 
 echo "makedist: Creating $prefix.tar.xz archive."
 xz -9 -k "$prefix".tar || exit 9
-md5sum "$prefix".tar.xz
+"$md5sum" "$prefix".tar.xz
 xz -t "$prefix".tar.xz
 
 echo ""