[Bug classpath/35684] New: 0.97.1 attempts to link against /usr/lib/libmagic.so even when cross-compiling

[cfriedt at visible-assets dot com]

./configure --prefix=/usr --host=arm-unknown-linux-gnu
--build=i686-pc-linux-gnu

make

fails at native/jni/java-net (see log below). 

I'm afraid that I haven't been able to fix it, but I've been trying for 2 days.
It definitely has something to do with autotools' attempts to find The Right
(TM) directory containing libmagic.so. In my case, it's
/usr/arm-unknown-linux-gnu/usr/lib, but that is somehow mistaken for /usr/lib. 

If I change native/jni/java-net/Makefile* as shown below, then it works for me,
although that's obviously not portable. I would suggest somehow preventing
-lmagic from being substituted with /usr/lib/libmagic.so.1.0.0

@@ -339,8 +339,7 @@
                        $(local_sources)

 libjavanet_la_LIBADD = $(top_builddir)/native/jni/classpath/jcl.lo \
-                     
$(top_builddir)/native/jni/native-lib/libclasspathnative.la \
-                      $(LIBMAGIC)
+                     
$(top_builddir)/native/jni/native-lib/libclasspathnative.la

...

-       $(LINK) -rpath $(nativeexeclibdir) $(libjavanet_la_LDFLAGS)
$(libjavanet_la_OBJECTS) $(libjavanet_la_LIBADD) $(LIBS)
+       $(LINK) -rpath $(nativeexeclibdir) $(libjavanet_la_LDFLAGS)
$(libjavanet_la_OBJECTS) $(libjavanet_la_LIBADD) $(LIBS)
/usr/arm-unknown-linux-gnu/usr/lib/libmagic.so.1.0.0




Build log:

Making all in java-net
make[3]: Entering directory
`/home/cfriedt/Desktop/blah/classpath-0.97.1/native/jni/java-net'
/bin/sh ../../../libtool --tag=CC --mode=compile arm-unknown-linux-gnu-gcc
-DHAVE_CONFIG_H -I. -I. -I../../../include  -I../../../include
-I../../../native/jni/classpath -I../../../native/jni/native-lib  -W -Wall
-Wmissing-declarations -Wwrite-strings -Wmissing-prototypes -Wno-long-long
-Wstrict-prototypes -pedantic  -g -O2 -c -o javanet.lo javanet.c
mkdir .libs
 arm-unknown-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I../../../include
-I../../../include -I../../../native/jni/classpath
-I../../../native/jni/native-lib -W -Wall -Wmissing-declarations
-Wwrite-strings -Wmissing-prototypes -Wno-long-long -Wstrict-prototypes
-pedantic -g -O2 -c javanet.c  -fPIC -DPIC -o .libs/javanet.o
 arm-unknown-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I../../../include
-I../../../include -I../../../native/jni/classpath
-I../../../native/jni/native-lib -W -Wall -Wmissing-declarations
-Wwrite-strings -Wmissing-prototypes -Wno-long-long -Wstrict-prototypes
-pedantic -g -O2 -c javanet.c -o javanet.o >/dev/null 2>&1
/bin/sh ../../../libtool --tag=CC --mode=compile arm-unknown-linux-gnu-gcc
-DHAVE_CONFIG_H -I. -I. -I../../../include  -I../../../include
-I../../../native/jni/classpath -I../../../native/jni/native-lib  -W -Wall
-Wmissing-declarations -Wwrite-strings -Wmissing-prototypes -Wno-long-long
-Wstrict-prototypes -pedantic  -g -O2 -c -o java_net_VMInetAddress.lo
java_net_VMInetAddress.c
 arm-unknown-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I../../../include
-I../../../include -I../../../native/jni/classpath
-I../../../native/jni/native-lib -W -Wall -Wmissing-declarations
-Wwrite-strings -Wmissing-prototypes -Wno-long-long -Wstrict-prototypes
-pedantic -g -O2 -c java_net_VMInetAddress.c  -fPIC -DPIC -o
.libs/java_net_VMInetAddress.o
 arm-unknown-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I../../../include
-I../../../include -I../../../native/jni/classpath
-I../../../native/jni/native-lib -W -Wall -Wmissing-declarations
-Wwrite-strings -Wmissing-prototypes -Wno-long-long -Wstrict-prototypes
-pedantic -g -O2 -c java_net_VMInetAddress.c -o java_net_VMInetAddress.o
>/dev/null 2>&1
/bin/sh ../../../libtool --tag=CC --mode=compile arm-unknown-linux-gnu-gcc
-DHAVE_CONFIG_H -I. -I. -I../../../include  -I../../../include
-I../../../native/jni/classpath -I../../../native/jni/native-lib  -W -Wall
-Wmissing-declarations -Wwrite-strings -Wmissing-prototypes -Wno-long-long
-Wstrict-prototypes -pedantic  -g -O2 -c -o java_net_VMNetworkInterface.lo
java_net_VMNetworkInterface.c
 arm-unknown-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I../../../include
-I../../../include -I../../../native/jni/classpath
-I../../../native/jni/native-lib -W -Wall -Wmissing-declarations
-Wwrite-strings -Wmissing-prototypes -Wno-long-long -Wstrict-prototypes
-pedantic -g -O2 -c java_net_VMNetworkInterface.c  -fPIC -DPIC -o
.libs/java_net_VMNetworkInterface.o
 arm-unknown-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I../../../include
-I../../../include -I../../../native/jni/classpath
-I../../../native/jni/native-lib -W -Wall -Wmissing-declarations
-Wwrite-strings -Wmissing-prototypes -Wno-long-long -Wstrict-prototypes
-pedantic -g -O2 -c java_net_VMNetworkInterface.c -o
java_net_VMNetworkInterface.o >/dev/null 2>&1
/bin/sh ../../../libtool --tag=CC --mode=compile arm-unknown-linux-gnu-gcc
-DHAVE_CONFIG_H -I. -I. -I../../../include  -I../../../include
-I../../../native/jni/classpath -I../../../native/jni/native-lib  -W -Wall
-Wmissing-declarations -Wwrite-strings -Wmissing-prototypes -Wno-long-long
-Wstrict-prototypes -pedantic  -g -O2 -c -o java_net_VMURLConnection.lo
java_net_VMURLConnection.c
 arm-unknown-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I../../../include
-I../../../include -I../../../native/jni/classpath
-I../../../native/jni/native-lib -W -Wall -Wmissing-declarations
-Wwrite-strings -Wmissing-prototypes -Wno-long-long -Wstrict-prototypes
-pedantic -g -O2 -c java_net_VMURLConnection.c  -fPIC -DPIC -o
.libs/java_net_VMURLConnection.o
 arm-unknown-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I../../../include
-I../../../include -I../../../native/jni/classpath
-I../../../native/jni/native-lib -W -Wall -Wmissing-declarations
-Wwrite-strings -Wmissing-prototypes -Wno-long-long -Wstrict-prototypes
-pedantic -g -O2 -c java_net_VMURLConnection.c -o java_net_VMURLConnection.o
>/dev/null 2>&1
/bin/sh ../../../libtool --tag=CC --mode=compile arm-unknown-linux-gnu-gcc
-DHAVE_CONFIG_H -I. -I. -I../../../include  -I../../../include
-I../../../native/jni/classpath -I../../../native/jni/native-lib  -W -Wall
-Wmissing-declarations -Wwrite-strings -Wmissing-prototypes -Wno-long-long
-Wstrict-prototypes -pedantic  -g -O2 -c -o gnu_java_net_VMPlainSocketImpl.lo
gnu_java_net_VMPlainSocketImpl.c
 arm-unknown-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I../../../include
-I../../../include -I../../../native/jni/classpath
-I../../../native/jni/native-lib -W -Wall -Wmissing-declarations
-Wwrite-strings -Wmissing-prototypes -Wno-long-long -Wstrict-prototypes
-pedantic -g -O2 -c gnu_java_net_VMPlainSocketImpl.c  -fPIC -DPIC -o
.libs/gnu_java_net_VMPlainSocketImpl.o
 arm-unknown-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I../../../include
-I../../../include -I../../../native/jni/classpath
-I../../../native/jni/native-lib -W -Wall -Wmissing-declarations
-Wwrite-strings -Wmissing-prototypes -Wno-long-long -Wstrict-prototypes
-pedantic -g -O2 -c gnu_java_net_VMPlainSocketImpl.c -o
gnu_java_net_VMPlainSocketImpl.o >/dev/null 2>&1
/bin/sh ../../../libtool --tag=CC --mode=compile arm-unknown-linux-gnu-gcc
-DHAVE_CONFIG_H -I. -I. -I../../../include  -I../../../include
-I../../../native/jni/classpath -I../../../native/jni/native-lib  -W -Wall
-Wmissing-declarations -Wwrite-strings -Wmissing-prototypes -Wno-long-long
-Wstrict-prototypes -pedantic  -g -O2 -c -o
gnu_java_net_local_LocalSocketImpl.lo gnu_java_net_local_LocalSocketImpl.c
 arm-unknown-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I../../../include
-I../../../include -I../../../native/jni/classpath
-I../../../native/jni/native-lib -W -Wall -Wmissing-declarations
-Wwrite-strings -Wmissing-prototypes -Wno-long-long -Wstrict-prototypes
-pedantic -g -O2 -c gnu_java_net_local_LocalSocketImpl.c  -fPIC -DPIC -o
.libs/gnu_java_net_local_LocalSocketImpl.o
 arm-unknown-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I../../../include
-I../../../include -I../../../native/jni/classpath
-I../../../native/jni/native-lib -W -Wall -Wmissing-declarations
-Wwrite-strings -Wmissing-prototypes -Wno-long-long -Wstrict-prototypes
-pedantic -g -O2 -c gnu_java_net_local_LocalSocketImpl.c -o
gnu_java_net_local_LocalSocketImpl.o >/dev/null 2>&1
/bin/sh ../../../libtool --tag=CC --mode=link arm-unknown-linux-gnu-gcc -W
-Wall -Wmissing-declarations -Wwrite-strings -Wmissing-prototypes
-Wno-long-long -Wstrict-prototypes -pedantic  -g -O2 -module -version-info
0:0:0 -no-undefined  -o libjavanet.la -rpath
/opt/gnu-classpath-0.97/lib/classpath  javanet.lo java_net_VMInetAddress.lo
java_net_VMNetworkInterface.lo java_net_VMURLConnection.lo
gnu_java_net_VMPlainSocketImpl.lo gnu_java_net_local_LocalSocketImpl.lo
../../../native/jni/classpath/jcl.lo
../../../native/jni/native-lib/libclasspathnative.la -lmagic 
arm-unknown-linux-gnu-gcc -shared  .libs/javanet.o
.libs/java_net_VMInetAddress.o .libs/java_net_VMNetworkInterface.o
.libs/java_net_VMURLConnection.o .libs/gnu_java_net_VMPlainSocketImpl.o
.libs/gnu_java_net_local_LocalSocketImpl.o
../../../native/jni/classpath/.libs/jcl.o -Wl,--whole-archive
../../../native/jni/native-lib/.libs/libclasspathnative.a
-Wl,--no-whole-archive  /usr/lib/libmagic.so  -Wl,-soname -Wl,libjavanet.so.0
-o .libs/libjavanet.so.0.0.0
/usr/lib/libmagic.so: could not read symbols: Invalid operation
collect2: ld returned 1 exit status
make[3]: *** [libjavanet.la] Error 1
make[3]: Leaving directory
`/home/cfriedt/Desktop/blah/classpath-0.97.1/native/jni/java-net'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory
`/home/cfriedt/Desktop/blah/classpath-0.97.1/native/jni'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/cfriedt/Desktop/blah/classpath-0.97.1/native'
make: *** [all-recursive] Error 1


-- 
           Summary: 0.97.1 attempts to link against /usr/lib/libmagic.so
                    even when cross-compiling
           Product: classpath
           Version: 0.97
            Status: UNCONFIRMED
          Severity: blocker
          Priority: P3
         Component: classpath
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: cfriedt at visible-assets dot com
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: arm-unknown-linux-gnu
GCC target triplet: arm-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35684