Linker warning: libz.so.1 not found

[wysota]

/usr/lib64/gcc/x86_64-suse-linux/4.7/../../../../x86_64-suse-linux/bin/ld: warning: libz.so.1, needed by /usr/lib64/libQtCore.so, not found (try using -rpath or -rpath-link)
/usr/lib64/gcc/x86_64-suse-linux/4.7/../../../../x86_64-suse-linux/bin/ld: warning: libdl.so.2, needed by /usr/lib64/libQtCore.so, not found (try using -rpath or -rpath-link)
/usr/lib64/gcc/x86_64-suse-linux/4.7/../../../../x86_64-suse-linux/bin/ld: warning: librt.so.1, needed by /usr/lib64/libQtCore.so, not found (try using -rpath or -rpath-link)
/usr/lib64/gcc/x86_64-suse-linux/4.7/../../../../x86_64-suse-linux/bin/ld: warning: libglib-2.0.so.0, needed by /usr/lib64/libQtCore.so, not found (try using -rpath or -rpath-link)

/usr/lib64/gcc/x86_64-suse-linux/4.7/../../../../x86_64-suse-linux/bin/ld: warning: libz.so.1, needed by /usr/lib64/libQtCore.so, not found (try using -rpath or -rpath-link)
/usr/lib64/gcc/x86_64-suse-linux/4.7/../../../../x86_64-suse-linux/bin/ld: warning: libdl.so.2, needed by /usr/lib64/libQtCore.so, not found (try using -rpath or -rpath-link)
/usr/lib64/gcc/x86_64-suse-linux/4.7/../../../../x86_64-suse-linux/bin/ld: warning: librt.so.1, needed by /usr/lib64/libQtCore.so, not found (try using -rpath or -rpath-link)
/usr/lib64/gcc/x86_64-suse-linux/4.7/../../../../x86_64-suse-linux/bin/ld: warning: libglib-2.0.so.0, needed by /usr/lib64/libQtCore.so, not found (try using -rpath or -rpath-link)

To copy to clipboard, switch view to plain text mode 

All the libraries that ld reports as missing are installed and in my ld path. For example:

> ls /lib64/libz*
/lib64/libz.so.1 /lib64/libz.so.1.2.7

> ls /lib64/libz*
/lib64/libz.so.1 /lib64/libz.so.1.2.7

To copy to clipboard, switch view to plain text mode 

According to ldconfig /lib64 is in the ld search path. The contents of ld.so.conf are:

usr/local/lib64
/usr/local/lib
include /etc/ld.so.conf.d/*.conf
# /lib64, /lib, /usr/lib64 and /usr/lib gets added
# automatically by ldconfig after parsing this file.
# So, they do not need to be listed.

usr/local/lib64
/usr/local/lib
include /etc/ld.so.conf.d/*.conf
# /lib64, /lib, /usr/lib64 and /usr/lib gets added
# automatically by ldconfig after parsing this file.
# So, they do not need to be listed.

To copy to clipboard, switch view to plain text mode 

Run ldd on those libs that report missing symbols (e.g. /usr/lib64/libQtCore.so) and see if the linker is able to find your libz and others.

PS. I don't expect an answer to this as it is a bit OT, but since I was curious - does anyone know why the convoluted search path to call ld, and not just /usr/x86_64-suse-linux/bin/ld? This isn't a Qt issue, but seems to be the way the gcc toolchain is setup on openSuse.

Because you might have more than one set of binutils installed on your machine and the build process wants to make sure it calls the right one (through the use of symbolic links).