/usr/src/gcc-4.4/debian/patches/gdc-stubs.diff is in gcc-4.4-source 4.4.7-1ubuntu2.
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The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 | # DP: Added stubs for various functions referenced by $(C_TARGET_OBJS)
--- a/src/gcc/d/d-builtins.c 2010-08-19 12:30:20.000000000 +0100
+++ b/src/gcc/d/d-builtins.c 2010-09-12 10:05:46.654888000 +0100
@@ -76,7 +76,12 @@
#error "Version of GCC is not supported."
#endif
-#if D_GCC_VER >= 41
+
+/* Nonzero if an ISO standard was selected. It rejects macros in the
+ user's namespace. */
+
+/*extern*/ int flag_iso;
+
/* Nonzero means enable C89 Amendment 1 features. */
/*extern*/ int flag_isoc94;
@@ -84,7 +89,7 @@
/* Nonzero means use the ISO C99 dialect of C. */
/*extern*/ int flag_isoc99;
-#endif
+
/* Used to help initialize the builtin-types.def table. When a type of
the correct size doesn't exist, use error_mark_node instead of NULL.
--- a/src/gcc/d/d-c-stubs.c 2010-08-19 12:30:20.000000000 +0100
+++ b/src/gcc/d/d-c-stubs.c 2010-08-29 11:41:16.020473123 +0100
@@ -31,6 +31,7 @@
link against function in the C front end. These definitions
satisfy the link requirements, but should never be executed. */
+void
add_cpp_dir_path (cpp_dir *p, int chain)
{
/* nothing */
@@ -48,6 +49,41 @@
/* nothing */
}
+tree
+default_conversion (tree exp)
+{
+ return exp;
+}
+
+tree
+build_binary_op (location_t location, enum tree_code code,
+ tree orig_op0, tree orig_op1, int convert_p)
+{
+#if D_GCC_VER >= 40
+ gcc_assert(0);
+#endif
+ return NULL_TREE;
+}
+
+tree
+build_unary_op (location_t location,
+ enum tree_code code, tree xarg, int flag)
+{
+#if D_GCC_VER >= 40
+ gcc_assert(0);
+#endif
+ return NULL_TREE;
+}
+
+tree
+build_indirect_ref (location_t loc, tree ptr, const char *errorstring)
+{
+#if D_GCC_VER >= 40
+ gcc_assert(0);
+#endif
+ return NULL_TREE;
+}
+
enum { unused } c_language;
enum cpp_ttype
--- a/src/gcc/d/d-gcc-includes.h 2010-08-29 21:11:57.875486089 +0100
+++ b/src/gcc/d/d-gcc-includes.h 2010-08-29 21:10:24.335459843 +0100
@@ -44,6 +44,23 @@
#include "config.h"
#include "system.h"
+/* Those are used in TARGET_OS_CPP_BUILTINS in some gcc/config/<arch>/<arch>.c
+ (alpha, mips, arm and a few others) for some builtin_defines such
+ __LANGUAGE_C_PLUS_PLUS but are defined in c-common.h. */
+#ifndef c_dialect_cxx
+# define c_dialect_cxx() 0
+#endif
+#ifndef c_dialect_objc
+# define c_dialect_objc() 0
+#endif
+
+/* Even if they are defined in d-apple-gcc.c and d-c-stubs.c, they are also
+ used in config/mips (as in config/darwin), so as we don't /need/ them,
+ better to define an empty macro here. */
+#ifndef builtin_define_with_value
+# define builtin_define_with_value(macro, expansion, is_str)
+#endif
+
/* Before gcc 4.0, <stdbool.h> was included before defining bool. In 4.0,
it is always defined as "unsigned char" unless __cplusplus. Have to make
sure the "bool" under c++ is the same so that structs are laid out
--- a/src/gcc/d/d-lang.cc 2010-08-29 21:10:24.343463863 +0100
+++ b/src/gcc/d/d-lang.cc 2010-08-29 21:11:02.459458778 +0100
@@ -442,8 +442,9 @@
{
line_maps lm;
cpp_reader * pfile; // Target macros below expect this identifier.
- int flag_iso = 0; // ditto
+ extern int flag_iso;// ditto
+ flag_iso = 0;
linemap_init(& lm);
#if D_GCC_VER >= 43
lm.reallocator = NULL;
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