Trouble installing with make on Ubuntu 20.04 (WSL 2), /bin/sh: 2: ./configure: not found

[Naphat Amundsen]

Hello

I am attempting to install FreeType in WSL 2 running Ubuntu 20.04. The 
automatic system detection seems to make sense, but the process seems to be 
unable to locate some files. I attempted to copy 'configure' into the directory 
it complains over, but it just ran into other problems. Here is the output for 
running 'make' (you can find system info below):


FreeType build system -- automatic system detection

The following settings are used:

  platform                    unix
  compiler                    cc
  configuration directory     ./builds/unix
  configuration rules         ./builds/unix/unix.mk

If this does not correspond to your system or settings please remove the file
`config.mk' from this directory then read the INSTALL file for help.

Otherwise, simply type `make' again to build the library,
or `make refdoc' to build the API reference (this needs Python >= 3.5).

Checking out submodule in `subprojects/dlg'
git submodule init
Submodule 'dlg' (https://github.com/nyorain/dlg.git) registered for path 
'subprojects/dlg'
git submodule update
Cloning into '/home/naphat/repositories/tuna/vendor/freetype/subprojects/dlg'...
Submodule path 'subprojects/dlg': checked out 
'0cc0d3eaed28483fc8036d90ac18878ebd83ed87'
Copying files from `subprojects/dlg' to `src/dlg' and `include/dlg'
mkdir include/dlg
cp subprojects/dlg/include/dlg/output.h include/dlg
cp subprojects/dlg/include/dlg/dlg.h include/dlg
cp subprojects/dlg/src/dlg/dlg.c src/dlg
Generating modules list in ./objs/ftmodule.h...
done.
* module: truetype  (Windows/Mac font files with extension *.ttf or *.ttc)
* module: type1     (Postscript font files with extension *.pfa or *.pfb)
* module: cff       (OpenType fonts with extension *.otf)
* module: cid       (Postscript CID-keyed fonts, no known extension)
* module: pfr       (PFR/TrueDoc font files with extension *.pfr)
* module: type42    (Type 42 font files with no known extension)
* module: winfnt    (Windows bitmap fonts with extension *.fnt or *.fon)
* module: pcf       (pcf bitmap fonts)
* module: bdf       (bdf bitmap fonts)
* module: sfnt      (helper module for TrueType & OpenType formats)
* module: autofit   (automatic hinting module)
* module: pshinter  (Postscript hinter module)
* module: smooth    (anti-aliased bitmap renderer)
* module: raster    (monochrome bitmap renderer)
* module: sdf       (signed distance field renderer)
* module: bsdf      (bitmap to signed distance field converter)
* module: psaux     (Postscript Type 1 & Type 2 helper module)
* module: psnames   (Postscript & Unicode Glyph name handling)
cd builds/unix; \
        ./configure
/bin/sh: 2: ./configure: not found
make: *** [builds/unix/detect.mk:91: setup] Error 127

System information:
GNU Make 4.2.1
Built for x86_64-pc-linux-gnu

Linux version 5.4.72-microsoft-standard-WSL2 (oe-user@oe-host) (gcc version 
8.2.0 (GCC)) #1 SMP Wed Oct 28 23:40:43 UTC 2020