ImageMagick no formats supported

[LiSongMWO]

Pacman tells me I have the latest version:

$ pacman -Ss ImageMagick
mingw32/mingw-w64-i686-imagemagick 7.0.3.1-1 [installed]
    An image viewing/manipulation program (mingw-w64)
mingw64/mingw-w64-x86_64-imagemagick 7.0.3.1-1 [installed]
    An image viewing/manipulation program (mingw-w64)

$ pacman -Syuu
:: Synchronizing package databases...
 mingw32 is up to date
 mingw64 is up to date
 msys is up to date
:: Starting core system upgrade...
 there is nothing to do
:: Starting full system upgrade...
 there is nothing to do

I have not (yet successfully) compiled or installed from MINGW-packages (issue #1907 ).

Attempting to query identify for what formats it supports yields empty output:

$ identify.exe --version
Version: ImageMagick 7.0.3-1 Q16 x86_64 2016-10-07 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2016 ImageMagick Studio LLC
License: http://www.imagemagick.org/script/license.php
Features: Cipher DPC HDRI Modules OpenMP
Delegates (built-in): bzlib cairo djvu fftw fontconfig freetype gslib jbig jng jp2 jpeg lcms lqr ltdl lzma openexr pangocairo png ps rsvg tiff webp wmf xml zlib

$ identify.exe -list format

$ 

Likewise convert fails to convert anything, says delegates are not installed.

$ convert test.tif test.png
convert.exe: no decode delegate for this image format `TIFF' @ error/constitute.c/ReadImage/508.
convert.exe: no images defined `test.png' @ error/convert.c/ConvertImageCommand/3253.

$ convert test.bmp test.png
convert.exe: no decode delegate for this image format `BMP' @ error/constitute.c/ReadImage/508.
convert.exe: no images defined `test.png' @ error/convert.c/ConvertImageCommand/3253.

$ convert -help
Version: ImageMagick 7.0.3-1 Q16 x86_64 2016-10-07 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2016 ImageMagick Studio LLC
License: http://www.imagemagick.org/script/license.php
Features: Cipher DPC HDRI Modules OpenMP
Delegates (built-in): bzlib cairo djvu fftw fontconfig freetype gslib jbig jng jp2 jpeg lcms lqr ltdl lzma openexr pangocairo png ps rsvg **tiff** webp wmf xml zlib

$ pacman -Ss libtif
mingw32/mingw-w64-i686-libtiff 4.0.6-1 [installed]
    Library for manipulation of TIFF images (mingw-w64)
mingw64/mingw-w64-x86_64-libtiff 4.0.6-1 [installed]
    Library for manipulation of TIFF images (mingw-w64)

[LiSongMWO]

Duplicate of #1885 I think.

[peterbud]

Then you might close this :)