My Strawberry Perl is 64 bit. I downloaded 64bit SDL1 from the site you provided (SDL2 couldn't be recognized). After runnning 'perl Build.pl', I got the following response:
########### log 1 ############
E:\A_Downloads\alien\Alien-SDL-1.446>perl Build.PL
Welcome to Alien::SDL module installation
-----------------------------------------
checking operating system... MSWin32
checking for gcc... yes
checking build system type... MSWin32-x64-multi-thread
checking platform specific module... using 'My::Builder::Windows'
checking SDL_INST_DIR env var... yes, E:\A_Downloads\SDL1_STRAWBERRY
checking for config script... yes, E:\A_Downloads\SDL1_STRAWBERRY\bin\
+sdl-config
no
checking for config script... no
checking for pthread... no
checking for SDL... no
checking for z... no
checking for jpeg... no
checking for tiff... no
checking for png... no
checking for SDL_image... no
checking for ogg... no
checking for vorbis... no
checking for vorbisfile... no
checking for SDL_mixer... no
checking for freetype... no
checking for SDL_ttf... no
checking for SDL_gfx... no
checking for pangoft2... no
checking for pango... no
checking for gobject... no
checking for gmodule... no
checking for glib... no
checking for fontconfig... no
checking for expat... no
checking for SDL_Pango... no
checking for prebuilt binaries... no
You have the following options:
[1] Already installed SDL ver=1.2.14 path=E:\A_Downloads\SDL1_STRAWBER
+RY\bin\..\
[2] Quit installation
What way do you wanna go? [1 ]1
Using already installed SDL ver=1.2.14 path=E:\A_Downloads\SDL1_STRAWB
+ERRY\bin\.
.\
Created MYMETA.yml and MYMETA.json
Creating new 'Build' script for 'Alien-SDL' version '1.446'
E:\A_Downloads\alien\Alien-SDL-1.446>
##############################
There was a new file created called Build.bat. I ran it and got the following:
############ log 2 ##############
E:\A_Downloads\alien\Alien-SDL-1.446>Build.bat
Build option used:
Already installed SDL ver=1.2.14 path=E:\A_Downloads\SDL1_STRA
+WBERRY\bin
\..\
Building Alien-SDL
E:\A_Downloads\alien\Alien-SDL-1.446>
##############################