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>

Original patch from: ../4.3.2/250-sh-pr24836.patch

-= BEGIN original header =-

Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/74_all_sh-pr24836.patch

http://sourceforge.net/mailarchive/forum.php?thread_id=8959304&forum_id=5348

http://gcc.gnu.org/PR24836

-= END original header =-

diff -durN gcc-4.3.3.orig/gcc/configure gcc-4.3.3/gcc/configure

--- gcc-4.3.3.orig/gcc/configure	2009-01-27 22:19:18.000000000 +0100

+++ gcc-4.3.3/gcc/configure	2009-01-27 22:25:33.000000000 +0100

@@ -20689,7 +20689,7 @@

 	tls_first_minor=14

 	tls_as_opt="-m64 -Aesame --fatal-warnings"

 	;;

-  sh-*-* | sh[34]-*-*)

+  sh-*-* | sh[34]*-*-*)

     conftest_s='

 	.section ".tdata","awT",@progbits

 foo:	.long	25

diff -durN gcc-4.3.3.orig/gcc/configure.ac gcc-4.3.3/gcc/configure.ac

--- gcc-4.3.3.orig/gcc/configure.ac	2009-01-27 22:19:18.000000000 +0100

+++ gcc-4.3.3/gcc/configure.ac	2009-01-27 22:25:33.000000000 +0100

@@ -2552,7 +2552,7 @@

 	tls_first_minor=14

 	tls_as_opt="-m64 -Aesame --fatal-warnings"

 	;;

-  sh-*-* | sh[34]-*-*)

+  sh-*-* | sh[34]*-*-*)

     conftest_s='

 	.section ".tdata","awT",@progbits

 foo:	.long	25