[plt-scheme] plt 370 compiling errors with --enable-shared

I am trying to compile plt 370 with the ./configure option --enable-shared
for an RPM for Mandriva, but it fails to compile with this option.

This is the error:
make[6]: Entering directory `/home/fhimpe/rpm/BUILD/plt-370/src/mzscheme/gc'
/home/fhimpe/rpm/BUILD/plt-370/src/lt/libtool --mode=compile
i586-mandriva-linux-gnu-gcc  -I./include -DNO_SIGNALS -O2 -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fomit-frame-pointer -march=i586 -mtune=generic -fasynchronous-unwind-tables     -DNO_EXECUTE_PERMISSION -DSILENT -DNO_GETENV -DLARGE_CONFIG -DATOMIC_UNCOLLECTABLE -DINITIAL_MARK_STACK_SIZE=8192 -c ./alloc.c
libtool: compile: unable to infer tagged configuration
libtool: compile: specify a tag with `--tag'
make[6]: *** [alloc.lo] Error 1

Without --enable-shared, compilation works fine.

I attach a complete configuration and compilation log.

What is wrong?

-- 
Frederik Himpe
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