configure.ac: Use the GCC_AC_ENABLE_DECIMAL_FLOAT macro.

gcc/

2010-09-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	    * configure.ac: Use the GCC_AC_ENABLE_DECIMAL_FLOAT macro.
	    * Makefile.in: Add aclocal.m4 dependency to dfp.m4.
	    * configure: Regenerate.
	    * aclocal.m4: Regenerate.

config/

2010-09-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	    * dfp.m4: New file.

libdecnumber/

2010-09-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	    * configure.ac: Use the GCC_AC_ENABLE_DECIMAL_FLOAT macro.
	    * Makefile.in: Add aclocal.m4 dependency to dfp.m4.
	    * configure: Regenerate.
	    * aclocal.m4: Regenerate.

libgcc/

2010-09-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	    * configure.ac: Use the GCC_AC_ENABLE_DECIMAL_FLOAT macro.
	    Include dfp.m4.
	    * configure: Regenerate.

From-SVN: r163815