[m-rev.] diff: fix static linking problems with gcc 4.7 on Linux

[Julien Fischer]

Branches: main, 12.08

Fix a problem statically linking Mercury executables with gcc 4.7
on Linux.

configure.in:
 	Add a comma after GCC's -Wl option.  GCC 4.7 (on Fedora 17)
 	no longer recognises the variant without the comma.
 	(XXX I'm not sure that the whole -Wl,-defsym -Wl,_DYNAMIC=0
 	thing is actually necessary these days -- things seem fine
 	on my machine without it, but I haven't tested this on
 	other machines.)

Julien.

Index: configure.in
===================================================================
RCS file: /home/mercury/mercury1/repository/mercury/configure.in,v
retrieving revision 1.618
diff -u -r1.618 configure.in
--- configure.in	6 Nov 2012 07:22:43 -0000	1.618
+++ configure.in	30 Nov 2012 03:15:51 -0000
@@ -4590,10 +4590,10 @@
          # similar treatment for other OSs too.)
          case "$C_COMPILER_TYPE" in
              gcc*)
-                LD_STATIC_FLAGS="-static -Wl-defsym -Wl_DYNAMIC=0"
+                LD_STATIC_FLAGS="-static -Wl,-defsym -Wl,_DYNAMIC=0"
                  ;;
              clang*)
-                LD_STATIC_FLAGS="-static -Wl-defsym -Wl_DYNAMIC=0"
+                LD_STATIC_FLAGS="-static -Wl,-defsym -Wl,_DYNAMIC=0"
                  ;;
              lcc)
                  # for lcc 4.1, we need to use "-Wl,".