build: Use PACKAGE_TARNAME and new bin names in NSIS script.

Replaces the hardcoded string "bitcoin" with the autoconf variable PACKAGE_TARNAME; fixes #7265.

Places where I chose not to replace:

1. bitcoin.ico wasn't replaced because it doesn't seem to be relevant to the build system and its filename never affects the end user.
2. InstallDir wasn't replaced because the current text has an uppercase B, and I'm not sure of a good way to capitalize the result of PACKAGE_TARNAME.
3. A comment in the Main Installer section wasn't replaced because comments don't ever face the end user.
4. The registry value "URL:Bitcoin" wasn't replaced for the same reason as InstallDir.
5. Startup shortcut wasn't replaced for the same reason as InstallDir.

All other appearances of "bitcoin" were replaced with PACKAGE_TARNAME, except for the bin names, which were instead replaced with the new bin name autoconf variables.

share/setup.nsi.in

@@ -20,7 +20,7 @@ SetCompressor /SOLID lzma
 !define MUI_STARTMENUPAGE_REGISTRY_KEY ${REGKEY}
 !define MUI_STARTMENUPAGE_REGISTRY_VALUENAME StartMenuGroup
 !define MUI_STARTMENUPAGE_DEFAULTFOLDER "@PACKAGE_NAME@"
-!define MUI_FINISHPAGE_RUN $INSTDIR\bitcoin-qt.exe
+!define MUI_FINISHPAGE_RUN $INSTDIR\@BITCOIN_GUI_NAME@@EXEEXT@
 !define MUI_UNICON "${NSISDIR}\Contrib\Graphics\Icons\modern-uninstall.ico"
 !define MUI_UNWELCOMEFINISHPAGE_BITMAP "@abs_top_srcdir@/share/pixmaps/nsis-wizard.bmp"
 !define MUI_UNFINISHPAGE_NOAUTOCLOSE
@@ -48,7 +48,7 @@ Var StartMenuGroup
 !insertmacro MUI_LANGUAGE English
 
 # Installer attributes
-OutFile @abs_top_srcdir@/bitcoin-${VERSION}-win@WINDOWS_BITS@-setup.exe
+OutFile @abs_top_srcdir@/@PACKAGE_TARNAME@-${VERSION}-win@WINDOWS_BITS@-setup.exe
 !if "@WINDOWS_BITS@" == "64"
 InstallDir $PROGRAMFILES64\Bitcoin
 !else
@@ -73,19 +73,19 @@ ShowUninstDetails show
 Section -Main SEC0000
     SetOutPath $INSTDIR
     SetOverwrite on
-    File @abs_top_srcdir@/release/bitcoin-qt.exe
+    File @abs_top_srcdir@/release/@BITCOIN_GUI_NAME@@EXEEXT@
     File /oname=COPYING.txt @abs_top_srcdir@/COPYING
     File /oname=readme.txt @abs_top_srcdir@/doc/README_windows.txt
     SetOutPath $INSTDIR\daemon
-    File @abs_top_srcdir@/release/bitcoind.exe
-    File @abs_top_srcdir@/release/bitcoin-cli.exe
+    File @abs_top_srcdir@/release/@BITCOIN_DAEMON_NAME@@EXEEXT@
+    File @abs_top_srcdir@/release/@BITCOIN_CLI_NAME@@EXEEXT@
     SetOutPath $INSTDIR\doc
     File /r @abs_top_srcdir@/doc\*.*
     SetOutPath $INSTDIR
     WriteRegStr HKCU "${REGKEY}\Components" Main 1
 
     # Remove old wxwidgets-based-bitcoin executable and locales:
-    Delete /REBOOTOK $INSTDIR\bitcoin.exe
+    Delete /REBOOTOK $INSTDIR\@PACKAGE_TARNAME@.exe
     RMDir /r /REBOOTOK $INSTDIR\locale
 SectionEnd
 
@@ -95,7 +95,7 @@ Section -post SEC0001
     WriteUninstaller $INSTDIR\uninstall.exe
     !insertmacro MUI_STARTMENU_WRITE_BEGIN Application
     CreateDirectory $SMPROGRAMS\$StartMenuGroup
-    CreateShortcut "$SMPROGRAMS\$StartMenuGroup\$(^Name).lnk" $INSTDIR\bitcoin-qt.exe
+    CreateShortcut "$SMPROGRAMS\$StartMenuGroup\$(^Name).lnk" $INSTDIR\@BITCOIN_GUI_NAME@@EXEEXT@
     CreateShortcut "$SMPROGRAMS\$StartMenuGroup\Uninstall $(^Name).lnk" $INSTDIR\uninstall.exe
     !insertmacro MUI_STARTMENU_WRITE_END
     WriteRegStr HKCU "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\$(^Name)" DisplayName "$(^Name)"
@@ -106,10 +106,10 @@ Section -post SEC0001
     WriteRegStr HKCU "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\$(^Name)" UninstallString $INSTDIR\uninstall.exe
     WriteRegDWORD HKCU "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\$(^Name)" NoModify 1
     WriteRegDWORD HKCU "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\$(^Name)" NoRepair 1
-    WriteRegStr HKCR "bitcoin" "URL Protocol" ""
-    WriteRegStr HKCR "bitcoin" "" "URL:Bitcoin"
-    WriteRegStr HKCR "bitcoin\DefaultIcon" "" $INSTDIR\bitcoin-qt.exe
-    WriteRegStr HKCR "bitcoin\shell\open\command" "" '"$INSTDIR\bitcoin-qt.exe" "%1"'
+    WriteRegStr HKCR "@PACKAGE_TARNAME@" "URL Protocol" ""
+    WriteRegStr HKCR "@PACKAGE_TARNAME@" "" "URL:Bitcoin"
+    WriteRegStr HKCR "@PACKAGE_TARNAME@\DefaultIcon" "" $INSTDIR\@BITCOIN_GUI_NAME@@EXEEXT@
+    WriteRegStr HKCR "@PACKAGE_TARNAME@\shell\open\command" "" '"$INSTDIR\@BITCOIN_GUI_NAME@@EXEEXT@" "%1"'
 SectionEnd
 
 # Macro for selecting uninstaller sections
@@ -127,7 +127,7 @@ done${UNSECTION_ID}:
 
 # Uninstaller sections
 Section /o -un.Main UNSEC0000
-    Delete /REBOOTOK $INSTDIR\bitcoin-qt.exe
+    Delete /REBOOTOK $INSTDIR\@BITCOIN_GUI_NAME@@EXEEXT@
     Delete /REBOOTOK $INSTDIR\COPYING.txt
     Delete /REBOOTOK $INSTDIR\readme.txt
     RMDir /r /REBOOTOK $INSTDIR\daemon
@@ -147,7 +147,7 @@ Section -un.post UNSEC0001
     DeleteRegValue HKCU "${REGKEY}" Path
     DeleteRegKey /IfEmpty HKCU "${REGKEY}\Components"
     DeleteRegKey /IfEmpty HKCU "${REGKEY}"
-    DeleteRegKey HKCR "bitcoin"
+    DeleteRegKey HKCR "@PACKAGE_TARNAME@"
     RmDir /REBOOTOK $SMPROGRAMS\$StartMenuGroup
     RmDir /REBOOTOK $INSTDIR
     Push $R0