Added the GetNativeProcessorArchitecture helper macro in case you really really need to know the true native CPU type

git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@6981 212acab6-be3b-0410-9dea-997c60f758d6

Docs/src/history.but

@@ -1,5 +1,13 @@
 \A{history} Changelog and Release Notes
 
+\H{v3.04} 3.04
+
+Released on ??? ??th, 20??
+
+\S1{v3.04-cl} Changelog
+
+\S2{} Minor Changes
+
 \H{v3.03} 3.03
 
 Released on January 29th, 2018

Include/Win/WinNT.nsh

@@ -203,6 +203,14 @@
 !define REG_MULTI_SZ             7
 !endif
 
+!define PROCESSOR_ARCHITECTURE_UNKNOWN 0xFFFF
+!define PROCESSOR_ARCHITECTURE_INTEL          0 ; x86
+!define PROCESSOR_ARCHITECTURE_ARM            5
+!define PROCESSOR_ARCHITECTURE_IA64           6 ; Itanium
+!define PROCESSOR_ARCHITECTURE_AMD64          9 ; x86-64/x64
+!define PROCESSOR_ARCHITECTURE_IA32_ON_WIN64  10
+!define PROCESSOR_ARCHITECTURE_ARM64          12
+!define PROCESSOR_ARCHITECTURE_ARM32_ON_WIN64 13
 
 !endif /* __WIN_NOINC_WINNT */
 !verbose pop

Include/x64.nsh

@@ -47,6 +47,23 @@
 !macroend
 
 
+!define GetNativeProcessorArchitecture "!insertmacro GetNativeProcessorArchitecture "
+!macro GetNativeProcessorArchitecture outvar
+  !if ${outvar} != $1
+  Push $1
+  !endif
+  !if "${NSIS_PTR_SIZE}" <= 4
+  System::Call 'KERNEL32::GetSystemInfo(@r1)' ; < XP
+  !endif
+  System::Call 'KERNEL32::GetNativeSystemInfo(@r1)'
+  System::Call '*$1(&i2.s)' ; Extract wProcessorArchitecture (PROCESSOR_ARCHITECTURE_*)
+  Pop ${outvar}
+  !if ${outvar} != $1
+  Pop $1
+  !endif
+!macroend
+
+
 !define DisableX64FSRedirection "!insertmacro DisableX64FSRedirection"
 !macro DisableX64FSRedirection
   System::Call kernel32::Wow64EnableWow64FsRedirection(i0)