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From: Marc Kleine-Budde <m.kleine-budde@pengutronix.de>
Date: Tue, 1 Nov 2011 18:25:06 +0100
Subject: [PATCH] no host includes
With this patch gcc bails out if you include a host include path into
the searchlist (-I). This patch is not intended for upstream and was
inspired by
http://www.openembedded.org/repo/org.openembedded.dev/packages/gcc/gcc-4.1.1/zecke-no-host-includes.patch
Signed-off-by: Marc Kleine-Budde <m.kleine-budde@pengutronix.de>
Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de>
---
gcc/incpath.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/gcc/incpath.c b/gcc/incpath.c
index 6693bf5..edddc73 100644
--- a/gcc/incpath.c
+++ b/gcc/incpath.c
@@ -429,6 +429,34 @@ add_path (char *path, int chain, int cxx_aware, bool user_supplied_p)
p->construct = 0;
p->user_supplied_p = user_supplied_p;
+#ifdef CROSS_COMPILE
+ /* A common error when cross compiling is including
+ host headers. This code below will try to fail fast
+ for cross compiling. Currently we consider /usr/include,
+ /opt/include and /sw/include as harmful. */
+ {
+ unsigned int i;
+ const char *bad_path[] = {
+ "/usr/include",
+ "/usr/local/include",
+ "/sw/include",
+ "/opt/include",
+ };
+
+ for (i = 0; i < sizeof(bad_path)/sizeof(bad_path[0]); i++) {
+ if( strstr(p->name, bad_path[i]) == p->name ) {
+ fprintf(stderr,_("\n"
+ "CROSS COMPILE Badness: %s in INCLUDEPATH: %s\n"
+ "\n"),
+
+ bad_path[i], p->name);
+
+ exit (FATAL_EXIT_CODE);
+ }
+ }
+ }
+#endif
+
add_cpp_dir_path (p, chain);
}
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