complibs/cloog: fix linking with libm

In Ubuntu 11.04 and 11.10, the default options for ld have changed.
--no-copy-dt-needed-entries and --as-needed are now enabled by default, which
causes errors like:

[EXTRA] Checking CLooG/ppl
[DEBUG] ==> Executing: 'make' '-j3' '-s' 'check'
[ALL ] Making check in .
[ALL ] config.status: creating include/cloog/cloog-config.h
[ALL ] config.status: include/cloog/cloog-config.h is unchanged
[ALL ] libtool: link: i686-build_pc-linux-gnu-gcc -Wall -fomit-frame-pointer
-pipe -o cloog cloog.o -L/<snip>/build/static/lib ./.libs/libcloog.a -lm
/<snip>/build/static/lib/libppl_c.a /<snip>/build/static/lib/libpwl.a
/<snip>/build/static/lib/libppl.a /<snip>/build/static/lib/libgmpxx.a
/<snip>/build/static/lib/libgmp.a -lstdc++
[ALL ] /usr/bin/ld: /<snip>/build/static/lib/libppl.a(MIP_Problem.o):
undefined reference to symbol 'sqrt@@GLIBC_2.0'
[ALL ] /usr/bin/ld: note: 'sqrt@@GLIBC_2.0' is defined in DSO
/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so so try adding
it to the linker command line
[ALL ] /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so:
could not read symbols: Invalid operation
[ALL ] collect2: ld returned 1 exit status
[ERROR] make[2]: *** [cloog] Error 1
[ERROR] make[1]: *** [check-recursive] Error 1

See:
https://wiki.ubuntu.com/NattyNarwhal/ToolchainTransition

This patch fixes these errors by placing '-lm' at the right place on the command
line as libppl requires libm when linking cloog.

Signed-off-by: "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>

 diff -durN gcc-4.4.5.orig/libjava/Makefile.in gcc-4.4.5/libjava/Makefile.in

 --- gcc-4.4.5.orig/libjava/Makefile.in	2010-10-01 10:26:18.000000000 +0200

 +++ gcc-4.4.5/libjava/Makefile.in	2010-10-09 23:12:22.000000000 +0200

 @@ -9180,6 +9180,9 @@

  ecjx$(EXEEXT): $(ecjx_OBJECTS) $(ecjx_DEPENDENCIES) 

  	@rm -f ecjx$(EXEEXT)

  	$(ecjx_LINK) $(ecjx_LDFLAGS) $(ecjx_OBJECTS) $(ecjx_LDADD) $(LIBS)

 +ecjx.$(OBJEXT): $(ecjx_SOURCES)

 +	@rm -f ecjx.$(OBJEXT)

 +	$(CC_FOR_BUILD) $(BUILD_CFLAGS) -c -o $@ $<

  gappletviewer$(EXEEXT): $(gappletviewer_OBJECTS) $(gappletviewer_DEPENDENCIES) 

  	@rm -f gappletviewer$(EXEEXT)

  	$(gappletviewer_LINK) $(gappletviewer_LDFLAGS) $(gappletviewer_OBJECTS) $(gappletviewer_LDADD) $(LIBS)