Cygwin: doc: Update postinstall/preremove scripts

setup >=2.925 indicates to postinstall and preremove scripts the Start
Menu suffix to use via the CYGWIN_START_MENU_SUFFIX env var.

It also indicates, via the CYGWIN_SETUP_OPTIONS env var, if the option
to disable Start Menu shortcut creation is supplied.

Update the Cygwin documentation postinstall and preremove scripts to
take these env vars into consideration.

2 files changed, 22 insertions, 7 deletions

diff --git a/winsup/doc/etc.postinstall.cygwin-doc.sh b/winsup/doc/etc.postinstall.cygwin-doc.sh
index 97f88a16d..b9115ef92 100755
--- a/winsup/doc/etc.postinstall.cygwin-doc.sh
+++ b/winsup/doc/etc.postinstall.cygwin-doc.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # /etc/postinstall/cygwin-doc.sh - cygwin-doc postinstall script.
 # installs Cygwin Start Menu shortcuts for Cygwin User Guide and API PDF and
 # HTML if in doc dir, and links to Cygwin web site home page and FAQ
@@ -36,9 +36,20 @@ do
 	fi
 done
 
+# setup was run with options not to create startmenu items
+case ${CYGWIN_SETUP_OPTIONS} in
+  *no-startmenu*)
+    exit 0
+    ;;
+esac
+
 # Cygwin Start Menu directory
-case $(uname -s) in *-WOW*) wow64=" (32-bit)" ;; esac
-smpc_dir="$($cygp $CYGWINFORALL -P -U --)/Cygwin${wow64}"
+if [ ! -v CYGWIN_START_MENU_SUFFIX ]
+then
+  case $(uname -s) in *-WOW*) CYGWIN_START_MENU_SUFFIX=" (32-bit)" ;; esac
+fi
+
+smpc_dir="$($cygp $CYGWINFORALL -P -U --)/Cygwin${CYGWIN_START_MENU_SUFFIX}"
 
 # ensure Cygwin Start Menu directory exists
 /usr/bin/mkdir -p "$smpc_dir"
@@ -53,7 +64,7 @@ fi
 # create User Guide and API PDF and HTML shortcuts
 while read target name desc
 do
-	[ -r "$target" ] && $mks $CYGWINFORALL -P -n "Cygwin${wow64}/$name" -d "$desc" -- $target
+	[ -r "$target" ] && $mks $CYGWINFORALL -P -n "Cygwin${CYGWIN_START_MENU_SUFFIX}/$name" -d "$desc" -- $target
 done <<EOF
 $doc/cygwin-ug-net.pdf		User\ Guide\ \(PDF\)  Cygwin\ User\ Guide\ PDF
 $html/cygwin-ug-net/index.html	User\ Guide\ \(HTML\) Cygwin\ User\ Guide\ HTML
@@ -64,7 +75,7 @@ EOF
 # create Home Page and FAQ URL link shortcuts
 while read target name desc
 do
-	$mks $CYGWINFORALL -P -n "Cygwin${wow64}/$name" -d "$desc" -a $target -- $launch
+	$mks $CYGWINFORALL -P -n "Cygwin${CYGWIN_START_MENU_SUFFIX}/$name" -d "$desc" -a $target -- $launch
 done <<EOF
 $site/index.html	Home\ Page	Cygwin\ Home\ Page\ Link
 $site/faq.html		FAQ	Cygwin\ Frequently\ Asked\ Questions\ Link
diff --git a/winsup/doc/etc.preremove.cygwin-doc.sh b/winsup/doc/etc.preremove.cygwin-doc.sh
index b098e6dac..cac29ee21 100755
--- a/winsup/doc/etc.preremove.cygwin-doc.sh
+++ b/winsup/doc/etc.preremove.cygwin-doc.sh
@@ -26,8 +26,12 @@ do
 done
 
 # Cygwin Start Menu directory
-case $(uname -s) in *-WOW*) wow64=" (32-bit)" ;; esac
-smpc_dir="$($cygp $CYGWINFORALL -P -U --)/Cygwin${wow64}"
+if [ ! -v CYGWIN_START_MENU_SUFFIX ]
+then
+  case $(uname -s) in *-WOW*) CYGWIN_START_MENU_SUFFIX=" (32-bit)" ;; esac
+fi
+
+smpc_dir="$($cygp $CYGWINFORALL -P -U --)/Cygwin${CYGWIN_START_MENU_SUFFIX}"
 
 # check Cygwin Start Menu directory still exists
 [ -d "$smpc_dir/" ] || exit 0