From: Sven Verdoolaege <skimo@kotnet.org>
Date: Tue, 2 Dec 2008 20:22:01 +0000 (+0100)
Subject: Add backup mp_get_memory_functions implementation for use with old gmps
X-Git-Tag: isl-0.01~350
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=21f70a2e26e7ea5466f56abd0087eea6eeda91fa;p=platform%2Fupstream%2Fisl.git

Add backup mp_get_memory_functions implementation for use with old gmps
---

diff --git a/Makefile.am b/Makefile.am
index 7f78b80..78ab76a 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -33,9 +33,14 @@ if BUNDLED_PIPLIB
 PIPLIB_LA = $(top_builddir)/piplib/libpiplibMP.la
 endif
 
+if NEED_GET_MEMORY_FUNCTIONS
+GET_MEMORY_FUNCTIONS=mp_get_memory_functions.c
+endif
+
 libisl_la_SOURCES = \
 	$(ISL_PIPLIB) \
 	$(ISL_POLYLIB) \
+	$(GET_MEMORY_FUNCTIONS) \
 	isl_affine_hull.c \
 	isl_blk.c \
 	isl_constraint.c \
diff --git a/configure.ac b/configure.ac
index 8c9e208..e084a75 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,6 +18,14 @@ if test "x$with_gmp_prefix" != "x"; then
 	GMP_CPPFLAGS="-I$with_gmp_prefix/include"
 	GMP_LDFLAGS="-L$with_gmp_prefix/lib"
 fi
+SAVE_CPPFLAGS="$CPPFLAGS"
+CPPFLAGS="$GMP_CPPFLAGS $CPPFLAGS"
+need_get_memory_functions=false
+AC_CHECK_DECLS(mp_get_memory_functions,[],[
+	need_get_memory_functions=true
+],[#include <gmp.h>])
+CPPFLAGS="$SAVE_CPPFLAGS"
+AM_CONDITIONAL(NEED_GET_MEMORY_FUNCTIONS, test x$need_get_memory_functions = xtrue)
 
 AC_DEFUN([ISL_SUBMODULE],[
 	AC_ARG_WITH($1_prefix,
diff --git a/include/isl_int.h b/include/isl_int.h
index 3445e55..1326664 100644
--- a/include/isl_int.h
+++ b/include/isl_int.h
@@ -9,6 +9,13 @@
 extern "C" {
 #endif
 
+#ifndef mp_get_memory_functions
+void mp_get_memory_functions(
+		void *(**alloc_func_ptr) (size_t),
+		void *(**realloc_func_ptr) (void *, size_t, size_t),
+		void (**free_func_ptr) (void *, size_t));
+#endif
+
 /* isl_int is the basic integer type.  It currently always corresponds
  * to a gmp mpz_t, but in the future, different types such as long long
  * or cln::cl_I will be supported.
diff --git a/mp_get_memory_functions.c b/mp_get_memory_functions.c
new file mode 100644
index 0000000..e14e336
--- /dev/null
+++ b/mp_get_memory_functions.c
@@ -0,0 +1,14 @@
+#include <gmp.h>
+
+void mp_get_memory_functions(
+		void *(**alloc_func_ptr) (size_t),
+		void *(**realloc_func_ptr) (void *, size_t, size_t),
+		void (**free_func_ptr) (void *, size_t))
+{
+	if (alloc_func_ptr)
+		*alloc_func_ptr = __gmp_allocate_func;
+	if (realloc_func_ptr)
+		*realloc_func_ptr = __gmp_reallocate_func;
+	if (free_func_ptr)
+		*free_func_ptr = __gmp_free_func;
+}