[Gimp-developer] gimp 2.9 build on linux, now jpeg, tiff, etc are unknown file types

[John <jgschaefer gmail com>]

I've been using gimp 2.9.2 and 2.9.3, building from a git clone without 
issues, using a subdirectory of my home for the install location.

I've now moved the install location to /usr/local, and the autogen, make 
and make install steps complete without errors.   Note:  I now use sudo 
make install in order to add files to /usr/local, before I simply 
invoked make install to send files to my home/gimp subdirectory.

However the new build of gimp does not recognize common image types such 
as jpeg, tiff, etc.  During the autogen step, I get output:
/
/

   /checking for TIFFReadScanline in -ltiff... yes/
   /checking tiffio.h usability... yes/
   /checking tiffio.h presence... yes/
   /checking for tiffio.h... yes/
   /checking for jpeg_destroy_decompress in -ljpeg... yes/
   /checking for jpeglib.h... yes/
   /checking for jpeg_save_markers in -ljpeg... yes

   ...

   config.status: creating plug-ins/file-jpeg/Makefile
   config.status: creating plug-ins/file-psd/Makefile
   config.status: creating plug-ins/file-sgi/Makefile
   config.status: creating plug-ins/file-tiff/Makefile

   /

which looks hopeful, but at the end there's no mention of jpg or tiff 
file support (just JPEG2000),

   /Building GIMP with prefix=/usr/local, datarootdir=${prefix}/share//
   //Desktop files install into ${datarootdir}//
   //
   //Extra Binaries://
   //  gimp-console:        yes//
   //
   //Optional Features://
   //  Language selection:  yes//
   //
   //Optional Plug-Ins://
   //  Ascii Art:           no (AA library not found)//
   //  Ghostscript:         no (Ghostscript library not found)//
   //  Help Browser:        no (WebKit not found)//
   //  JPEG 2000:           yes//
   //  MNG:                 yes//
   //  OpenEXR:             yes//
   //  PDF (import):        Using PostScript plug-in (libpoppler-glib
   not found)//
   //  PDF (export):        yes//
   //  Print:               yes//
   //  Python 2:            yes//
   //  Script-Fu:           yes//
   //  SVG:                 yes//
   //  TWAIN (MacOS X):     no//
   //  TWAIN (Win32):       no//
   //  Webpage:             no (WebKit not found)//
   //  WMF:                 no (libwmf not found)//
   //  X11 Mouse Cursor:    yes//
   //  XPM:                 yes/

Shared libraries for tiff and jpeg exist on my system (as I said, gimp 
2.9 worked when the install target was my home directory).

   /ldconfig -p | grep tiff/
   /    libtiffxx.so.5 (libc6,x86-64) =>
   /usr/lib/x86_64-linux-gnu/libtiffxx.so.5/
   /    libtiffxx.so (libc6,x86-64) =>
   /usr/lib/x86_64-linux-gnu/libtiffxx.so/
   /    libtiff.so.5 (libc6,x86-64) =>
   /usr/lib/x86_64-linux-gnu/libtiff.so.5/
   /    libtiff.so.5 (libc6) => /usr/lib/i386-linux-gnu/libtiff.so.5/
   /    libtiff.so (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libtiff.so/


There must be a simple explanation, I just can't think of it!