gcc.c (STANDARD_STARTFILE_PREFIX_1): Define.

2004-07-02  Aaron W. LaFramboise <aaronraolete36@aaronwl.com>

	* gcc.c (STANDARD_STARTFILE_PREFIX_1): Define.
	(STANDARD_STARTFILE_PREFIX_2): Define.
	(standard_startfile_prefix_1): Initialize to
	STANDARD_STARTFILE_PREFIX_1.
	(standard_startfile_prefix_2): Initialize to
	STANDARD_STARTFILE_PREFIX_2.
	* config/i386/mingw32.h (MD_STARTFILE_PREFIX): Remove.
	(STANDARD_STARTFILE_PREFIX_1): Define.
	(STANDARD_STARTFILE_PREFIX_2): Define.
	* doc/tm.texi (STANDARD_STARTFILE_PREFIX_1): Document.
	(STANDARD_STARTFILE_PREFIX_2): Document.

From-SVN: r84002

gcc/ChangeLog

+2004-07-02  Aaron W. LaFramboise <aaronraolete36@aaronwl.com>
+
+	* gcc.c (STANDARD_STARTFILE_PREFIX_1): Define.
+	(STANDARD_STARTFILE_PREFIX_2): Define.
+	(standard_startfile_prefix_1): Initialize to
+	STANDARD_STARTFILE_PREFIX_1.
+	(standard_startfile_prefix_2): Initialize to
+	STANDARD_STARTFILE_PREFIX_2.
+	* config/i386/mingw32.h (MD_STARTFILE_PREFIX): Remove.
+	(STANDARD_STARTFILE_PREFIX_1): Define.
+	(STANDARD_STARTFILE_PREFIX_2): Define.
+	* doc/tm.texi (STANDARD_STARTFILE_PREFIX_1): Document.
+	(STANDARD_STARTFILE_PREFIX_2): Document.
+
 2004-07-01  Richard Henderson  <rth@redhat.com>
 
         * tree-sra.c (sra_walk_expr): Don't maybe_lookup_element_for_expr

gcc/config/i386/mingw32.h

@@ -69,9 +69,13 @@ Boston, MA 02111-1307, USA.  */
 #define STARTFILE_SPEC "%{shared|mdll:dllcrt2%O%s} \
   %{!shared:%{!mdll:crt2%O%s}} %{pg:gcrt2%O%s}"
 
-/* An additional prefix to try after the standard prefixes.  */
-#undef MD_STARTFILE_PREFIX
-#define MD_STARTFILE_PREFIX "/mingw/lib/"
+/* Override startfile prefix defaults.  */
+#ifndef STANDARD_STARTFILE_PREFIX_1
+#define STANDARD_STARTFILE_PREFIX_1 "/mingw/lib/"
+#endif
+#ifndef STANDARD_STARTFILE_PREFIX_2
+#define STANDARD_STARTFILE_PREFIX_2 ""
+#endif
 
 /* Output STRING, a string representing a filename, to FILE.
    We canonicalize it to be in Unix format (backslashes are replaced

gcc/doc/tm.texi

@@ -469,6 +469,22 @@ try when searching for startup files such as @file{crt0.o}.
 is built as a cross compiler.
 @end defmac
 
+@defmac STANDARD_STARTFILE_PREFIX_1
+Define this macro as a C string constant if you wish to override the
+standard choice of @code{/lib} as a prefix to try after the default prefix
+when searching for startup files such as @file{crt0.o}.
+@code{STANDARD_STARTFILE_PREFIX_1} is not searched when the compiler
+is built as a cross compiler.
+@end defmac
+
+@defmac STANDARD_STARTFILE_PREFIX_2
+Define this macro as a C string constant if you wish to override the
+standard choice of @code{/lib} as yet another prefix to try after the
+default prefix when searching for startup files such as @file{crt0.o}.
+@code{STANDARD_STARTFILE_PREFIX_2} is not searched when the compiler
+is built as a cross compiler.
+@end defmac
+
 @defmac MD_STARTFILE_PREFIX
 If defined, this macro supplies an additional prefix to try after the
 standard prefixes.  @code{MD_EXEC_PREFIX} is not searched when the

gcc/gcc.c

@@ -1429,6 +1429,13 @@ static const char *gcc_libexec_prefix;
 
 /* Default prefixes to attach to command names.  */
 
+#ifndef STANDARD_STARTFILE_PREFIX_1
+#define STANDARD_STARTFILE_PREFIX_1 "/lib/"
+#endif
+#ifndef STANDARD_STARTFILE_PREFIX_2
+#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
+#endif
+ 
 #ifdef CROSS_COMPILE  /* Don't use these prefixes for a cross compiler.  */
 #undef MD_EXEC_PREFIX
 #undef MD_STARTFILE_PREFIX
@@ -1454,8 +1461,10 @@ static const char *md_exec_prefix = MD_EXEC_PREFIX;
 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
 static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
-static const char *const standard_startfile_prefix_1 = "/lib/";
-static const char *const standard_startfile_prefix_2 = "/usr/lib/";
+static const char *const standard_startfile_prefix_1
+  = STANDARD_STARTFILE_PREFIX_1;
+static const char *const standard_startfile_prefix_2
+  = STANDARD_STARTFILE_PREFIX_2;
 
 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
 static const char *tooldir_prefix;
@@ -6231,10 +6240,14 @@ main (int argc, const char **argv)
 		      NULL, PREFIX_PRIORITY_LAST, 0, NULL, 1);
 	}
 
-      add_sysrooted_prefix (&startfile_prefixes, standard_startfile_prefix_1,
-			    "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL, 1);
-      add_sysrooted_prefix (&startfile_prefixes, standard_startfile_prefix_2,
-			    "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL, 1);
+      if (*standard_startfile_prefix_1)
+ 	add_sysrooted_prefix (&startfile_prefixes,
+			      standard_startfile_prefix_1, "BINUTILS",
+			      PREFIX_PRIORITY_LAST, 0, NULL, 1);
+      if (*standard_startfile_prefix_2)
+	add_sysrooted_prefix (&startfile_prefixes,
+			      standard_startfile_prefix_2, "BINUTILS",
+			      PREFIX_PRIORITY_LAST, 0, NULL, 1);
 #if 0 /* Can cause surprises, and one can use -B./ instead.  */
       add_prefix (&startfile_prefixes, "./", NULL,
 		  PREFIX_PRIORITY_LAST, 1, NULL, 0);