Compiling xv with Progressive JPEG and PNG support

First, a straight install method for CentOS:

• install the nux dextop repository
• run yum install xv

compiling it

Written before the web existed, xv is still one of the best image viewing/manipulating programs around. The author still maintains a web site with source and patches at this xv downloads page.

To get it to compile with Progressive JPEG and PNG support was a bit tricky. The instructions below worked on a Fedora Core 4 installation.

• from the above download page, download xv-3.10a.tar.gz, decompress it with tar zxvf xv-3.10a.tar.gz
• near the bottom of the page, from the Optional Patches list, download into the xv-3.10a source directory:
  • the Patch to use Version 6 of the JPEG library (xv-3.10a.JPEG-patch)
  • the Patch to read/write PNG files (xv-3.10a-png-1.2d.tar.gz) (including the patch that is mentioned in the text below it (xvpng-1.2d-fix3.patch))
• get the open source JPEG library from the Independent JPEG Group page, and decompress it in the xv-3.10a directory
• to make sure the new JPEG library is used:
  rm -rf jpeg
  mv jpeg-6b jpeg
• for the PNG support:
  yum install libpng-devel
  yum install zlib-devel
• apply the patches:
  patch < xv-3.10a.JPEG-patch
  tar zxvf xv-3.10a-png-1.2d.tar.gz
  patch -p1 < xvpng.diff
  patch < xvpng-1.2d-fix3.patch
  
• open the Makefile in an editor, and change this line:
  LIBS = -lX11 $(JPEGLIB) $(TIFFLIB) $(PNGLIB) $(ZLIBLIB) -lm
  to:
  LIBS = -L /usr/X11R6/lib -lX11 $(JPEGLIB) $(TIFFLIB) $(PNGLIB) $(ZLIBLIB) -lm
• run make
• if you get this error:
  xv.h:119: error: conflicting types for 'sys_errlist'
  simply comment out the offending line in xv.h:
  /* extern char *sys_errlist[]; /* this too... */
• run make install to install. To create an RPM, use checkinstall