[squid-users] unable to compile squid-3.1.5 on debian lenny

Dear list,

unfortunately I am unable to compile squid-3.1.5 on Debian lenny 5.0.5

$ uname -srvmpio
Linux 2.6.26-2-amd64 #1 SMP Sun Jun 20 20:16:30 UTC 2010 x86_64 unknown unknown GNU/Linux

$ ./configure --prefix=/opt/squid-3.1.5 --enable-icap-client --enable-ssl --disable-translation --disable-auto-locale --enable-linux-netfilter --with-pthreads --with-filedescriptors=32768 --enable-storeio=ufs,aufs --enable-removal-policies=lru,heap

.
.

$ make

.
.

depbase=`echo LoadableModule.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
        g++ -DHAVE_CONFIG_H -DDEFAULT_CONFIG_FILE=\"/opt/squid-3.1.5/etc/squid.conf\" -DDEFAULT_SQUID_DATA_DIR=\"/opt/squid-3.1.5/share\" -DDEFAULT_SQUID_CONFIG_DIR=\"/opt/squid-3.1.5/etc\" -I.. -I../include -I../src -I../include -I../src -Wall -Wpointer-arith -Wwrite-strings -Wcomments -Werror -D_REENTRANT -g -O2 -MT LoadableModule.o -MD -MP -MF $depbase.Tpo -c -o LoadableModule.o LoadableModule.cc &&\
        mv -f $depbase.Tpo $depbase.Po
In file included from LoadableModule.cc:10:
../libltdl/ltdl.h:36:31: error: libltdl/lt_system.h: No such file or directory
../libltdl/ltdl.h:37:30: error: libltdl/lt_error.h: No such file or directory
../libltdl/ltdl.h:38:33: error: libltdl/lt_dlloader.h: No such file or directory
depbase=`echo LoadableModules.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
        g++ -DHAVE_CONFIG_H -DDEFAULT_CONFIG_FILE=\"/opt/squid-3.1.5/etc/squid.conf\" -DDEFAULT_SQUID_DATA_DIR=\"/opt/squid-3.1.5/share\" -DDEFAULT_SQUID_CONFIG_DIR=\"/opt/squid-3.1.5/etc\" -I.. -I../include -I../src -I../include -I../src -Wall -Wpointer-arith -Wwrite-strings -Wcomments -Werror -D_REENTRANT -g -O2 -MT LoadableModules.o -MD -MP -MF $depbase.Tpo -c -o LoadableModules.o LoadableModules.cc &&\
        mv -f $depbase.Tpo $depbase.Po
In file included from LoadableModule.cc:10:
../libltdl/ltdl.h:50: error: expected constructor, destructor, or type conversion before 'typedef'
../libltdl/ltdl.h:53: error: expected constructor, destructor, or type conversion before 'int'
.
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ii libltdl3 1.5.26-4+lenny1 A system independent dlopen wrapper for GNU libtool
ii libltdl3-dev 1.5.26-4+lenny1 A system independent dlopen wrapper for GNU libtool

are installed on my box but the necessary lt_system.h, lt_error.h, lt_dlloader.h seems not to be in those packages.

see http://packages.debian.org

What am I doing wrong ? I never had this problem before. Any hint ?

kind regards,

---
Jan