Make bcmath buildable as shared module

ext/bcmath/Makefile.in

@@ -1,5 +1,6 @@
 
 LTLIBRARY_NAME    = libbcmath.la
 LTLIBRARY_SOURCES = bcmath.c number.c
+LTLIBRARY_SHARED_NAME = bcmath.la
 
 include $(top_srcdir)/build/dynlib.mk

ext/bcmath/config.m4

@@ -1,30 +1,17 @@
 dnl $Id$
 
-AC_MSG_CHECKING(whether to enable bc style precision math functions)
-AC_ARG_ENABLE(bcmath,
+PHP_ARG_ENABLE(bcmath,whether to enable bc style precision math functions,
 [  --enable-bcmath         Compile with bc style precision math functions.
                           Read README-BCMATH for instructions on how to
-                          get this module installed. ],
-[
-  if test "$enableval" = "yes"; then
-    AC_DEFINE(WITH_BCMATH, 1, [Whether you have bcmath])
-    AC_MSG_RESULT(yes)
-    PHP_EXTENSION(bcmath)
-	if test -f $srcdir/ext/bcmath/number.c; then
-		if grep "Dummy File" $srcdir/ext/bcmath/number.c >/dev/null; then
-		  AC_MSG_ERROR(You do not have the bcmath package. Please read the README-BCMATH file.)
-		fi
-	else
-		AC_MSG_ERROR(You do not have the bcmath package. Please read the README-BCMATH file.)
-	fi
-  else
-    AC_DEFINE(WITH_BCMATH, 0,[ ])
-    AC_MSG_RESULT(no)
+                          get this module installed. ])
+
+if test "$PHP_BCMATH" != "no"; then
+  AC_DEFINE(WITH_BCMATH, 1, [Whether you have bcmath])
+  PHP_EXTENSION(bcmath, $ext_shared)
+  if test ! -f $ext_srcdir/number.c || grep "Dummy File" $ext_srcdir/number.c >/dev/null; then
+    AC_MSG_ERROR(You do not have the bcmath package. Please read the README-BCMATH file.)
   fi
-],[
-  AC_DEFINE(WITH_BCMATH, 0,[ ])
-  AC_MSG_RESULT(no)
-]) 
+fi
 
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