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Old 11-22-2010, 11:25 PM   #1
camphor
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Registered: Jan 2009
Location: USA
Distribution: Fedora 14 / Slackware 13.1
Posts: 85

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Compiling ncmpcpp with multilib Slackware 13.1


I'm running into trouble compiling ncmpcppp with a SlackBuild under a multilib Slackware 13.1. Even though my ARCH is exported correctly and it's looking in /usr/lib64 for the relevant libraries, the build fails with these errors:

Code:
/usr/lib64/gcc/x86_64-slackware-linux/4.4.4/../../../../x86_64-slackware-linux/bin/ld: skipping incompatible /usr/lib/libnsl.so when searching for -lnsl
/usr/lib64/gcc/x86_64-slackware-linux/4.4.4/../../../../x86_64-slackware-linux/bin/ld: skipping incompatible /usr/lib/libnsl.a when searching for -lnsl
/usr/lib64/gcc/x86_64-slackware-linux/4.4.4/../../../../x86_64-slackware-linux/bin/ld: skipping incompatible /usr/lib/libncursesw.so when searching for -lncursesw
/usr/lib64/gcc/x86_64-slackware-linux/4.4.4/../../../../x86_64-slackware-linux/bin/ld: skipping incompatible /usr/lib/libncursesw.a when searching for -lncursesw
/usr/lib64/gcc/x86_64-slackware-linux/4.4.4/../../../../x86_64-slackware-linux/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching for -lpthread
/usr/lib64/gcc/x86_64-slackware-linux/4.4.4/../../../../x86_64-slackware-linux/bin/ld: skipping incompatible /usr/lib/libpthread.a when searching for -lpthread
/usr/lib/libcurl.so: could not read symbols: File in wrong format
collect2: ld returned 1 exit status
make[2]: *** [ncmpcpp] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2
Any help would be appreciated.
 
Old 11-23-2010, 04:07 PM   #2
Fidori
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Registered: Oct 2007
Location: Finland
Distribution: Slackware
Posts: 24

Rep: Reputation: 8
I think this is caused by a bug in ncurses.

The ncmpcpp build system uses ncursesw5-config to get ncurses specific link flags.

Code:
ncursesw5-config --libs
incorrectly outputs
Code:
-L/usr/lib -lncursesw
while it should output
Code:
-L/usr/lib64 -lncursesw
Curl uses the linker flag -lcurl. Libtool combines the flags -L/usr/lib and -lcurl to an absolute path /usr/lib/libcurl.so which is the 32-bit library.

If I modify /usr/bin/ncursesw5-config to output the correct flags, ncmpcpp compiles successfully.

It seems the bug has been fixed in latest ncurses snapshots.
 
Old 11-23-2010, 04:09 PM   #3
ponce
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Registered: Aug 2004
Location: Pisa, Italy
Distribution: Slackware
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as a temporary solution you can add an
Code:
LDFLAGS="-L/usr/lib64 -L/lib64" \
to the configure like this
Code:
@@ -69,6 +69,7 @@
 chown -R root:root .
 chmod -R u+w,go+r-w,a-s .
 
+LDFLAGS="-L/usr/lib64 -L/lib64" \
 CFLAGS="$SLKCFLAGS" \
 CXXFLAGS="$SLKCFLAGS" \
 ./configure \

Last edited by ponce; 11-23-2010 at 04:10 PM.
 
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