Hi, On Thursday, July 14, 2011 at 3:18 PM, Nguyen Vu Hung (VNC) wrote: [ ... ] > Though libpng-devel and libjpeg-devel (both i386 and x64 rpms) are installed, > it seems that configure could not find them. > > (I guess) I've fixed the errors by: > > 1. Adding /usr/lib64 to /etc/so.ld.conf, and I think you meant, /etc/ld.so.conf? Anyway, there’s no need to add. But if you’re going to add something, it’s a better practice to add a file in /etc/ld.so.conf.d instead. > 2. Specify jpeg lib dir that configure has to look: > ./configure --with-jpeg-dir=/usr > > So, php 5.3.6 did compile fine but, curiously, I want to ask: > > 3. Why /usr/lib64 is not in ldconfig by default? It is. Did you check with “ldconfig -v”? > 4. Why it is "--with-jpeg-dir=/usr" but not "--with-jpeg-dir=/usr/lib64"? That worked because you have both i386 and x64 RPMs installed. As already pointed out, you could have fixed that by using “--with-libdir=lib64”. So, if you want to use /usr/lib64, try the following instead: ./configure --with-libdir=lib64 --with-jpeg-dir=/usr/lib64 HTH, -- - Edo - mailto:ml2edwin at gmail.com “The tongue of the righteous one is choice silver; the heart of the wicked one is worth little.”—Proverbs 10:20