Installing libvips from source and making it work

gistfile1.txt

Installing `libvips` from source on Ubuntu 18.04 Bionic

(See the first comment at https://gist.github.com/apcro/99ced7c8a5b20fd77622e7394c2049ac for a formatted version of this gist)

<code>
wget https://github.com/libvips/libvips/releases/download/v8.8.2/vips-8.8.2.tar.gz
tar -xvf vips-8.8.2.tar.gz 
cd vips-8.8.2
./configure
</code>

Make sure image loading libraries are installed.
<code>
* optional dependencies
use fftw3 for FFT: 			no
Magick package: 			MagickCore
Magick API version: 			magick6
load with libMagick: 			yes
save with libMagick: 			yes
accelerate loops with orc: 		no
  (requires orc-0.4.11 or later)
ICC profile support with lcms: 		yes (lcms2)
file import with niftiio: 		no
file import with libheif: 		no
file import with OpenEXR: 		yes
file import with OpenSlide:		no
  (requires openslide-3.3.0 or later)
file import with matio: 		no
PDF import with PDFium 			no
PDF import with poppler-glib: 		no
  (requires poppler-glib 0.16.0 or later)
SVG import with librsvg-2.0: 		yes
  (requires librsvg-2.0 2.34.0 or later)
zlib: 					yes
file import with cfitsio: 		no
file import/export with libwebp:	yes
  (requires libwebp, libwebpmux, libwebpdemux 0.5.0 or later)
text rendering with pangoft2: 		no
file import/export with libpng: 	yes (pkg-config libpng >= 1.2.9)
  (requires libpng-1.2.9 or later)
support 8bpp PNG quantisation:		no
  (requires libimagequant)
file import/export with libtiff:	yes (pkg-config libtiff-4)
file import/export with giflib:		yes (found by search)
file import/export with libjpeg:	yes (pkg-config)
image pyramid export:			no
  (requires libgsf-1 1.14.26 or later)
use libexif to load/save JPEG metadata: yes
</code>

If not:
<code>
apt-get install glib2.0-dev build-essential libexpat1-dev libjpeg-dev libpng-dev libwebp-dev libgif-dev libexif-dev imagemagick libmagick++-dev
./configure 
</code>

Once libraries are installed:
<code>
make
vips -v
</code>

If necessary, link binary
<code>
cd /usr/lib/
ln -s /usr/local/lib/libvips.so.42 libvips.so.42
vips -v
</code>

thank you but i don't know why but i libexif installed but libvips still soesn't want to change the metadata for example when I do Vips magickload input.xxx output.xxx --density 300 the dpi defaults to 25 in the metadata

Thanks it helped me install version 8.10.5.
I believe instructions are lacking a make install step after make. At least I had to do that.

Thanks so much for this.