From ab4c68601e8dd0a22668b73565495a0a7b05171f Mon Sep 17 00:00:00 2001
From: Johann ELSASS <circular@operamail.com>
Date: Tue, 3 Nov 2020 10:57:48 +0100
Subject: [PATCH] add configure script

---
 configure     | 74 +++++++++++++++++++++++++++++++++++++++++++++++++++
 configure.bat | 70 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 144 insertions(+)
 create mode 100755 configure
 create mode 100644 configure.bat

diff --git a/configure b/configure
new file mode 100755
index 00000000..8aa9e813
--- /dev/null
+++ b/configure
@@ -0,0 +1,74 @@
+#!/usr/bin/env bash
+echo For help type: ./configure --help
+args=("$@")
+haserror=false
+defaultfpc=fpc
+wantedfpc=$defaultfpc
+if [ -f "debian/CONFIGURE_DEFAULT_FPCBIN" ]; then
+	wantedfpc=$(cat debian/CONFIGURE_DEFAULT_FPCBIN)
+fi
+defaultprefix=/usr/local
+wantedprefix=$defaultprefix
+if [ -f "debian/CONFIGURE_DEFAULT_LAZDIR" ]; then
+	wantedlazdir=$(cat debian/CONFIGURE_DEFAULT_LAZDIR)
+else
+	wantedlazdir=
+fi
+for param in "${args[@]}"
+do
+	if [ "$param" == "-h" ] || [ "$param" == "--help" ]; then
+		echo "Usage: ./configure [OPTIONS]"
+		echo ""
+		echo "    --prefix=PREFIX"
+		echo "        Specifies the install prefix."
+		echo "        By default prefix is \"$defaultprefix\"" 
+		echo "        For packages use \"/usr\""
+		echo ""
+		echo "    --lazdir=BASE_DIRECTORY_OF_LAZARUS"
+		echo "        Specifies to compile with FPC using the specified Lazarus sources."
+		echo "        Otherwise lazbuild will be used."
+		echo ""
+		echo "    --fpcbin=FPC_BINARY"
+		echo "        Specifies the command to call Free Pascal Compiler."
+		echo "        Default is \"$defaultfpc\""
+		exit 0
+	elif [ "${param:0:9}" == "--prefix=" ]; then
+		wantedprefix=${param:9}
+	elif [ "${param:0:9}" == "--lazdir=" ]; then
+		wantedlazdir=${param:9}
+	elif [ "${param:0:9}" == "--fpcbin=" ]; then
+		wantedfpc=${param:9}
+	else
+		echo "Warning: unknown option $param"
+	fi
+done
+echo "Prefix set to: $wantedprefix"
+echo $wantedprefix >prefix
+if [ "$wantedlazdir" == "" ]; then
+	echo "Using lazbuild"
+	rm -f lazdir
+	touch lazdir
+	rm -f fpcbin
+else
+	echo "Using FPC with Lazarus source: $wantedlazdir"
+	if [ ! -d "$wantedlazdir" ]; then
+		echo "Error: directory not found!"
+		haserror=true
+	elif [ ! -d "$wantedlazdir/lcl" ]; then
+		echo "Warning: it does not seem to be the directory of Lazarus!"
+	fi
+	echo $wantedlazdir >lazdir
+	echo "Compiler set to: $wantedfpc"
+	rm -f fpcbin
+	echo $wantedfpc >fpcbin
+fi
+if [ "$haserror" = true ]; then
+	exit 1
+else
+	if [ "$(uname)" == "FreeBSD" ]; then
+		echo "You can now type: gmake"
+	else
+		echo "You can now type: make"
+	fi
+	exit 0
+fi
diff --git a/configure.bat b/configure.bat
new file mode 100644
index 00000000..84fd1979
--- /dev/null
+++ b/configure.bat
@@ -0,0 +1,70 @@
+@echo off
+echo For help type: configure /?
+set defaultfpc=fpc
+set wantedfpc=%defaultfpc%
+set wantedlazdir=
+
+:nextparam
+set param=%~1
+if "%param%" == "" goto endparam
+if "%param%" == "--help" goto showhelp
+if "%param%" == "-h" goto showhelp
+if "%param%" == "/help" goto showhelp
+if "%param%" == "/?" goto showhelp
+if "%param:~0,9%" == "--lazdir=" (
+	set wantedlazdir=%param:~9%
+) else if "%param%" == "--lazdir" (
+	set wantedlazdir=%~2
+	shift
+) else if "%param:~0,9%" == "--fpcbin=" (
+	set wantedfpc=%param:~9%
+) else if "%param%" == "--fpcbin" (
+	set wantedfpc=%~2
+	shift
+) else (
+	echo Error: unknown option %param%
+	exit /b 1
+)
+
+shift
+goto nextparam
+:endparam
+
+if exist fpcbin del fpcbin
+<nul set /p ".=%wantedlazdir%" >lazdir
+if "%wantedlazdir%" == "" (
+	echo Using lazbuild
+	lazbuild -h > NUL 2> NUL
+	if errorlevel 1 (
+		echo Error: Lazarus needs to be in the PATH
+		exit /b 1
+	)
+) else (
+	echo Using FPC with Lazarus source: %wantedlazdir%
+	if not exist "%wantedlazdir%\" (
+		echo Error: directory not found
+		exit /b 1
+	) else if not exist "%wantedlazdir%\lcl\" (
+		echo Warning: it does not seem to be the directory of Lazarus!
+	)
+	<nul set /p ".=%wantedfpc%" >fpcbin
+	%wantedfpc% -h > NUL 2> NUL
+	if errorlevel 1 (
+		echo Error: FPC needs to be in the PATH
+		exit /b 1
+	)
+)
+
+echo You can now type: make
+exit /b 0
+
+:showhelp
+echo Usage: configure [OPTIONS]
+echo.
+echo     --lazdir=BASE_DIRECTORY_OF_LAZARUS
+echo         Specifies to compile with FPC using the specified Lazarus sources.
+echo         Otherwise lazbuild will be used.
+echo.
+echo     --fpcbin=FPC_BINARY
+echo         Specifies the command to call Free Pascal Compiler.
+echo         Default is %defaultfpc%