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>

This patch makes building the shared library possible.

Copyright 2007 Yann E. MORIN <yann.morin.1998@anciens.enib.fr>

Licensed to you as dmalloc-5.5.2 is.

diff -dur dmalloc-5.5.2.orig/Makefile.in dmalloc-5.5.2/Makefile.in

--- dmalloc-5.5.2.orig/Makefile.in	2007-05-14 19:26:14.000000000 +0200

+++ dmalloc-5.5.2/Makefile.in	2007-05-18 15:54:04.000000000 +0200

@@ -257,7 +257,7 @@

 # via: http://256.com/gray/email.html

 $(LIB_SL) : $(LIBRARY)

 	rm -f $@ $@.t

-	@shlinkargs@ $(LIBRARY) $(OBJS) $(NORMAL_OBJS)

+	@shlinkargs@ $(LIBRARY)

 	mv $@.t $@

 $(LIBRARY) : $(OBJS) $(NORMAL_OBJS)

@@ -270,7 +270,7 @@

 $(LIB_TH_SL) : $(LIB_TH)

 	rm -f $@ $@.t

-	@shlinkargs@ $(LIB_TH) $(OBJS) $(THREAD_OBJS)

+	@shlinkargs@ $(LIB_TH)

 	mv $@.t $@

 $(LIB_CXX) : $(OBJS) $(NORMAL_OBJS) $(CXX_OBJS)

@@ -279,7 +279,7 @@

 $(LIB_CXX_SL) : $(LIB_CXX)

 	rm -f $@ $@.t

-	@shlinkargs@ $(LIB_CXX) $(OBJS) $(NORMAL_OBJS) $(CXX_OBJS)

+	@shlinkargs@ $(LIB_CXX)

 	mv $@.t $@

 $(LIB_TH_CXX) : $(OBJS) $(THREAD_OBJS) $(CXX_OBJS)

@@ -288,7 +288,7 @@

 $(LIB_TH_CXX_SL) : $(LIB_TH_CXX)

 	rm -f $@ $@.t

-	@shlinkargs@ $(LIB_TH_CXX) $(OBJS) $(THREAD_OBJS) $(CXX_OBJS)

+	@shlinkargs@ $(LIB_TH_CXX)

 	mv $@.t $@

 threadssl : $(LIB_TH_SL)