[PATCH, M2] introduction of --enable-libm2 in top level directory

[Gaius Mulley]

Below are two patches for configure.ac and Makefile.def which provide
rules for building libm2 and checking gm2.  Tested on trunk and no new
regressions have occurred when building with --enable-languages=all
on x86_64 Debian Wheezy.

More patches will be coming but thought they might be fed in small
groups.

A possible ChangeLog entry might be:

2013-11-19  Gaius Mulley  <gaius.mul...@southwales.ac.uk>

        * configure.ac: Added --enable-libm2.
        * Makefile.def: Added entries for libm2.
        * configure: Regenerated.
        * Makefile.in: Regenerated.

I presume the person committing the patches also regenerates configure
and Makefile.in ?

Hope the patches meet with approval?

regards,
Gaius


--- gcc-trunk-svn/configure.ac  2013-11-14 14:54:10.000000000 +0000
+++ gcc-trunk/configure.ac      2013-11-19 12:05:16.230717741 +0000
@@ -169,7 +169,8 @@
                ${libgcj} \
                target-libobjc \
                target-libada \
-               target-libgo"
+               target-libgo \
+               target-libm2"
 
 # these tools are built using the target libraries, and are intended to
 # run only in the target environment
@@ -424,6 +425,12 @@
   noconfigdirs="$noconfigdirs gnattools"
 fi
 
+AC_ARG_ENABLE(libm2,
+[AS_HELP_STRING([--enable-libm2], [build libm2 directory])],
+ENABLE_LIBM2=$enableval,
+ENABLE_LIBM2=yes)
+
+
 AC_ARG_ENABLE(libssp,
 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
 ENABLE_LIBSSP=$enableval,
--- gcc-trunk-svn/Makefile.def  2013-11-14 14:54:10.000000000 +0000
+++ gcc-trunk/Makefile.def      2013-11-19 12:04:39.686718616 +0000
@@ -152,6 +152,7 @@
 target_modules = { module= libgomp; bootstrap= true; lib_path=.libs; };
 target_modules = { module= libitm; lib_path=.libs; };
 target_modules = { module= libatomic; lib_path=.libs; };
+target_modules = { module= libm2; };
 
 // These are (some of) the make targets to be done in each subdirectory.
 // Not all; these are the ones which don't have special options.
@@ -569,6 +570,8 @@
 languages = { language=obj-c++;        gcc-check-target=check-obj-c++; };
 languages = { language=go;     gcc-check-target=check-go;
                                lib-check-target=check-target-libgo; };
+languages = { language=m2;     gcc-check-target=check-m2;
+                               lib-check-target=check-target-libm2; };
 
 // Toplevel bootstrap
 bootstrap_stage = { id=1 ; };