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warning about conflicting libraries from base and pkgsrc
Hi,
on NetBSD 3.1 with /usr/lib/libz.so.0.4 and /usr/pkg/lib/libz.so.1.0.2
(from zlib-1.2.3) I just saw this, building a program without pkgsrc:
gcc -I/usr/pkg/include -g -O2 -L/usr/pkg/lib -lcurl -L/usr/pkg/lib
-Wl,-R/usr/pkg/lib -lidn -lssl -lcrypto -lz -o esniper auction.o
auctionfile.o auctioninfo.o buffer.o esniper.o history.o html.o http.o
options.o util.o -L/usr/pkg/lib -lcurl -L/usr/pkg/lib -Wl,-R/usr/pkg/lib
-lidn -lssl -lcrypto -lz
ld: warning: libz.so.0, needed by /usr/pkg/lib/libcurl.so, may conflict
with libz.so.1
ld: warning: libz.so.0, needed by /usr/pkg/lib/libcurl.so, may conflict
with libz.so.1
The resulting binary includes this information
$ objdump -x esniper
...
Dynamic Section:
NEEDED libcurl.so.4
NEEDED libidn.so.11
NEEDED libssl.so.3
NEEDED libcrypto.so.2
NEEDED libz.so.1
NEEDED libc.so.12
RPATH /usr/pkg/lib
NOTE: take a look at the version of libz.
$ ldd esniper
esniper:
-lintl.0 => /usr/lib/libintl.so.0
-lidn.11 => /usr/pkg/lib/libidn.so.11
-lcrypt.0 => /lib/libcrypt.so.0
-lcrypto.2 => /usr/lib/libcrypto.so.2
-lssl.3 => /usr/lib/libssl.so.3
-lz.0 => /usr/lib/libz.so.0
-lcurl.4 => /usr/pkg/lib/libcurl.so.4
-lz.1 => /usr/pkg/lib/libz.so.1
-lc.12 => /usr/lib/libc.so.12
NOTE: two versions of libz will be used by this program.
Building the software within the pkgsrc framework gives me this
$ objdump -x esniper
...
Dynamic Section:
NEEDED libcurl.so.4
NEEDED libidn.so.11
NEEDED libssl.so.3
NEEDED libcrypto.so.2
NEEDED libz.so.0
NEEDED libc.so.12
RPATH /usr/pkg/lib
$ ldd esniper
esniper:
-lintl.0 => /usr/lib/libintl.so.0
-lidn.11 => /usr/pkg/lib/libidn.so.11
-lcrypt.0 => /lib/libcrypt.so.0
-lcrypto.2 => /usr/lib/libcrypto.so.2
-lssl.3 => /usr/lib/libssl.so.3
-lz.0 => /usr/lib/libz.so.0
-lcurl.4 => /usr/pkg/lib/libcurl.so.4
-lc.12 => /usr/lib/libc.so.12
Without digging further I suppose the correct result (only libz.so.0 is
recorded in the binary) comes from using "buildlink3" in pkgsrc.
However, I am curious how to avoid the warning when not using pkgsrc. I
suppose there _are_ people who build software now and then without pkgsrc.
ciao
Klaus
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