Trying to compile gmic-lib

Software G'MIC
1
Error Code 
C:\pdn-gmic\gmic-master\src>"C:\Program Files (x86)\GnuWin32\bin\make.exe" lib
'grep' is not recognized as an internal or external command,
operable program or batch file.
'grep' is not recognized as an internal or external command,
operable program or batch file.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
'head' is not recognized as an internal or external command,
operable program or batch file.
'head' is not recognized as an internal or external command,
operable program or batch file.
'head' is not recognized as an internal or external command,
operable program or batch file.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
process_begin: CreateProcess(NULL, uname, ...) failed.
'pkg-config' is not recognized as an internal or external command,
operable program or batch file.

How do I get past this?

My end goal is to make gmic plugins for pdn.

2

CMD is having trouble locating these commands, expecting them to be in the path.

3

Ok, now I’m here.

Errors 
User@MM-DESKTOP MSYS /c/pdn-gmic/gmic-master/src
$ make lib
Package zlib was not found in the pkg-config search path.
Perhaps you should add the directory containing `zlib.pc'
to the PKG_CONFIG_PATH environment variable
No package 'zlib' found
Package fftw3 was not found in the pkg-config search path.
Perhaps you should add the directory containing `fftw3.pc'
to the PKG_CONFIG_PATH environment variable
No package 'fftw3' found
Package libcurl was not found in the pkg-config search path.
Perhaps you should add the directory containing `libcurl.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libcurl' found
Package libpng was not found in the pkg-config search path.
Perhaps you should add the directory containing `libpng.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libpng' found
Package libtiff-4 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libtiff-4.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libtiff-4' found
Package zlib was not found in the pkg-config search path.
Perhaps you should add the directory containing `zlib.pc'
to the PKG_CONFIG_PATH environment variable
No package 'zlib' found
Package fftw3 was not found in the pkg-config search path.
Perhaps you should add the directory containing `fftw3.pc'
to the PKG_CONFIG_PATH environment variable
No package 'fftw3' found
Package libcurl was not found in the pkg-config search path.
Perhaps you should add the directory containing `libcurl.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libcurl' found
Package libpng was not found in the pkg-config search path.
Perhaps you should add the directory containing `libpng.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libpng' found
Package libtiff-4 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libtiff-4.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libtiff-4' found
make "CFLAGS+=-Dgmic_build -Dcimg_date=\\\"\\\" -Dcimg_time=\\\"\\\" -Dcimg_use_zlib -I/usr/include -Dgmic_prerelease="\\\"200723\\\""  -std=c++11 -pedantic -Wall -Wextra -Wfatal-errors -Werror=unknown-pragmas -Werror=unused-label -Wshadow -Dcimg_use_abort -Dgmic_is_parallel  -Dcimg_use_fftw3  -Dcimg_use_curl  -Dcimg_use_png  -Dcimg_use_jpeg -Dcimg_use_tiff  -fopenmp -Dcimg_use_openmp -Dcimg_display=2 -O2" "LIBS+=-lz  -L/usr/lib -lm -lpthread  -lfftw3 -lfftw3_threads -lcurl -lpng -lz -ljpeg -ltiff -lgomp -lgdi32 " _lib
make[1]: Entering directory '/c/pdn-gmic/gmic-master/src'
> Retrieve CImg Library...
 done!
g++ -o libgmic.o -c gmic.cpp -fPIC -Dgmic_build -Dcimg_date=\"\" -Dcimg_time=\"\" -Dcimg_use_zlib -I/usr/include -Dgmic_prerelease=\"200723\"  -std=c++11 -pedantic -Wall -Wextra -Wfatal-errors -Werror=unknown-pragmas -Werror=unused-label -Wshadow -Dcimg_use_abort -Dgmic_is_parallel  -Dcimg_use_fftw3  -Dcimg_use_curl  -Dcimg_use_png  -Dcimg_use_jpeg -Dcimg_use_tiff  -fopenmp -Dcimg_use_openmp -Dcimg_display=2 -O2
In file included from gmic.h:222,
                 from gmic.cpp:1994:
./CImg.h:448:10: fatal error: png.h: No such file or directory
  448 | #include "png.h"
      |          ^~~~~~~
compilation terminated.
make[1]: *** [Makefile:421: libgmic.o] Error 1
make[1]: Leaving directory '/c/pdn-gmic/gmic-master/src'
make: *** [Makefile:409: lib] Error 2