On Tue, 2012-03-06 at 17:10 +0000, Sérgio Basto wrote:
Hi , I found this error
/usr/bin/ld:
/usr/lib/gcc/x86_64-redhat-linux/4.7.0/../../../../lib64/libgpac_static.a(base_encoding.o):
undefined reference to symbol 'deflate'
/usr/bin/ld: note: 'deflate' is defined in DSO /lib64/libz.so.1 so try
adding it to the linker command
line
/lib64/libz.so.1: could not read symbols: Invalid
operation
collect2: error: ld returned 1 exit status
Could someone help me , to understand what happens ?
AIUI, it looks like the code you try to compile uses the deflate()
function from libz, and doesn't link it directly (i.e. the "-lz"
compiler option) but indirectly (i.e. links a library which uses libz).
You need to explicitly link all libraries that you use, you may not
depend on other libraries pulling these in.
Nils
--
Nils Philippsen "Those who would give up Essential Liberty to purchase
Red Hat a little Temporary Safety, deserve neither Liberty
nils(a)redhat.com nor Safety." -- Benjamin Franklin, 1759
PGP fingerprint: C4A8 9474 5C4C ADE3 2B8F 656D 47D8 9B65 6951 3011