[kaffe] Can I compile kaffe-1.0.7 using sun's compiler?

[Shen Qinghua]

I need to port the kaffe to RSIM and must use the sun's compiler.
but the error message says: Kaffe can only build with gcc.

And the detailed message is as follows:
CC=cc ./configure
loading cache ./config.cache
checking for a BSD compatible install... ./install-sh -c
checking whether build environment is sane... yes
checking whether make sets ${MAKE}... yes
checking for working aclocal... missing
checking for working autoconf... missing
checking for working automake... missing
checking for working autoheader... missing
checking for working makeinfo... missing
checking whether to enable maintainer-specific portions of Makefiles... no
checking for gcc... cc
checking whether the C compiler (cc  ) works... yes
checking whether the C compiler (cc  ) is a cross-compiler... no
checking whether we are using GNU C... no
checking whether cc accepts -g... yes
configure: error: Kaffe can only build with GCC