Major `cross' category overhaul. Clean up the shared Makefiles; move all

binutils stuff (except gas) to a shared, multiple-target binutils build;
reduce extract and compile times by being more specific with files and
targets; update to egcs 1.1.1 with a diffball from NetBSD's src/gnu/dist
tree; add 4.4BSD a.out archive support to binutils.

1 files changed, 50 insertions, 0 deletions

diff --git a/cross/COMMON/buwrapper.c b/cross/COMMON/buwrapper.c
new file mode 100644
index 00000000000..0617513a720
--- /dev/null
+++ b/cross/COMMON/buwrapper.c
@@ -0,0 +1,50 @@
+/*	$NetBSD: buwrapper.c,v 1.1 1999/01/04 22:37:30 tv Exp $	*/
+
+#include <err.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sysexits.h>
+#include <unistd.h>
+
+/*
+ * Wrapper for binutils programs.
+ *
+ * This frontend sets the appropriate environment variables that tell
+ * binutils programs which target will be used.
+ */
+
+static const char binsubdir[] = "libexec/binutils";
+
+#define PATHLEN sizeof(PREFIX) + sizeof(binsubdir) + 20
+
+int main(int argc, char **argv) {
+	char path[PATHLEN], *p, *prog;
+
+	/* quickly find last part of path component */
+	if (p = strrchr(argv[0], '/'))
+		p++;
+	else
+		p = argv[0];
+	if (prog = strrchr(p, '-'))
+		prog++;
+	else
+		prog = p;
+
+	/* make program pathname */
+	snprintf(path, PATHLEN, "%s/%s/%s", PREFIX, binsubdir, prog);
+
+	/* set up environment */
+	setenv("GNUTARGET", GNUTARGET, 1);
+#ifdef LDEMULATION
+	setenv("LDEMULATION", LDEMULATION, 1);
+#endif
+#ifdef LD_RPATH_LINK
+	setenv("LD_RPATH_LINK", LD_RPATH_LINK, 1);
+#endif
+
+	/* run it! */
+	execv(path, argv);
+
+	/* we shouldn't get here. */
+	err(EX_OSERR, "(buwrapper): exec %s", path);
+}