cpp-id-data.h: Add extern "C".

	* include/cpp-id-data.h: Add extern "C".
	* include/line-map.h: Likewise.
	* include/mkdeps.h: Likewise.
	* include/symtab.h: Likewise.
	* internal.h: Likewise.

From-SVN: r148051

libcpp/ChangeLog

+2009-06-01  Ian Lance Taylor  <iant@google.com>
+
+	* include/cpp-id-data.h: Add extern "C".
+	* include/line-map.h: Likewise.
+	* include/mkdeps.h: Likewise.
+	* include/symtab.h: Likewise.
+	* internal.h: Likewise.
+
 2009-05-15  Ian Lance Taylor  <iant@google.com>
 
 	* include/cpplib.h (enum cpp_builtin_type): Rename from enum

libcpp/include/cpp-id-data.h

@@ -18,6 +18,10 @@ along with this program; see the file COPYING3.  If not see
 
 #include "cpplib.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #if !defined (HAVE_UCHAR) && !defined (IN_GCC)
 typedef unsigned char uchar;
 #endif
@@ -79,3 +83,7 @@ struct GTY(()) cpp_macro {
      tokens.  */
   unsigned int extra_tokens : 1;
 };
+
+#ifdef __cplusplus
+}
+#endif

libcpp/include/line-map.h

@@ -23,6 +23,10 @@ along with this program; see the file COPYING3.  If not see
 #ifndef LIBCPP_LINE_MAP_H
 #define LIBCPP_LINE_MAP_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef GTY
 #define GTY(x) /* nothing */
 #endif
@@ -184,4 +188,9 @@ extern const struct line_map *linemap_lookup
 
 extern source_location
 linemap_position_for_column (struct line_maps *set, unsigned int to_column);
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* !LIBCPP_LINE_MAP_H  */

libcpp/include/mkdeps.h

@@ -23,6 +23,10 @@ along with this program; see the file COPYING3.  If not see
 #ifndef LIBCPP_MKDEPS_H
 #define LIBCPP_MKDEPS_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* This is the data structure used by all the functions in mkdeps.c.
    It's quite straightforward, but should be treated as opaque.  */
 
@@ -76,4 +80,8 @@ extern int deps_restore (struct deps *, FILE *, const char *);
    automatic dependency schemes.  */
 extern void deps_phony_targets (const struct deps *, FILE *);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* ! LIBCPP_MKDEPS_H */

libcpp/include/symtab.h

@@ -20,6 +20,11 @@ along with this program; see the file COPYING3.  If not see
 #define LIBCPP_SYMTAB_H
 
 #include "obstack.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef GTY
 #define GTY(x) /* nothing */
 #endif
@@ -99,4 +104,8 @@ extern void ht_load (hash_table *ht, hashnode *entries,
 /* Dump allocation statistics to stderr.  */
 extern void ht_dump_statistics (hash_table *);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* LIBCPP_SYMTAB_H */

libcpp/internal.h

@@ -33,6 +33,10 @@ along with this program; see the file COPYING3.  If not see
 typedef int iconv_t;  /* dummy */
 #endif
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct directive;		/* Deliberately incomplete.  */
 struct pending_option;
 struct op;
@@ -702,4 +706,8 @@ ufputs (const unsigned char *s, FILE *f)
   return fputs ((const char *)s, f);
 }
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* ! LIBCPP_INTERNAL_H */