Pack your own Free Pascal Compiler for Windows

fpc.iss

; Script generated by the Inno Setup Script Wizard.
; SEE THE DOCUMENTATION FOR DETAILS ON CREATING INNO SETUP SCRIPT FILES!

#define MyAppName "Free Pascal Compiler"
; Change MyAppVersion to your FPC version please
#define MyAppVersion "3.3.1-11699-g6c47f8f4d7"
#define MyAppPublisher "Florial Klaempfl and others"
#define MyAppURL "freepascal.org"

[Setup]
; NOTE: The value of AppId uniquely identifies this application. Do not use the same AppId value in installers for other applications.
; (To generate a new GUID, click Tools | Generate GUID inside the IDE.)
AppId={{6B6D313E-7878-400D-8026-EEAB24118BDC}
AppName={#MyAppName}
AppVersion={#MyAppVersion}
;AppVerName={#MyAppName} {#MyAppVersion}
AppPublisher={#MyAppPublisher}
AppPublisherURL={#MyAppURL}
AppSupportURL={#MyAppURL}
AppUpdatesURL={#MyAppURL}
DefaultDirName={autopf}\fpc_win64
DefaultGroupName=Free Pascal Compiler (x86_64-win64)
; Uncomment the following line to run in non administrative install mode (install for current user only.)
;PrivilegesRequired=lowest
PrivilegesRequiredOverridesAllowed=dialog
OutputBaseFilename=fpctrunk
Compression=lzma
SolidCompression=yes
WizardStyle=modern

[Languages]
Name: "english"; MessagesFile: "compiler:Default.isl"

[Files]
Source: "C:\fpc\*"; DestDir: "{app}"; Flags: ignoreversion recursesubdirs createallsubdirs
; NOTE: Don't use "Flags: ignoreversion" on any shared system files

[Icons]
Name: "{group}\{cm:UninstallProgram,{#MyAppName}}"; Filename: "{uninstallexe}"

guide.md

1. Get fpcupdeluxe here and Inno Setup.
2. Run fpcupdeluxe, change any preferences you want + choose FPC version, then click on "FPC Only" to start the installation.
3. Once done, open fpc.iss on Inno Setup then change Sources variable under Files section to your installed FPC location (remember to keep suffix \*!)
4. "Compile" the project then we will get a new installer!