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Index: gcc-4.0.2/gcc/c-incpath.c
===================================================================
--- gcc-4.0.2.orig/gcc/c-incpath.c 2005-01-23 16:05:27.000000000 +0100
+++ gcc-4.0.2/gcc/c-incpath.c 2006-05-15 21:23:02.000000000 +0200
@@ -350,6 +350,26 @@
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. */
+ {
+ /* printf("Adding Path: %s\n", p->name ); */
+ if( strstr(p->name, "/usr/include" ) == p->name ) {
+ fprintf(stderr, _("BUILD ISOLATION FAILURE: /usr/include in INCLUDEPATH: %s\n Please fix the flags passed to the compiler to use the correct prefix.\n"), p->name);
+ abort();
+ } else if( strstr(p->name, "/sw/include") == p->name ) {
+ fprintf(stderr, _("BUILD ISOLATION FAILURE: /sw/include in INCLUDEPATH: %s\n Please fix the flags passed to the compiler to use the correct prefix.\n"), p->name);
+ abort();
+ } else if( strstr(p->name, "/opt/include") == p->name ) {
+ fprintf(stderr, _("BUILD ISOLATION FAILURE: /opt/include in INCLUDEPATH: %s\n Please fix the flags passed to the compiler to use the correct prefix.\n"), p->name);
+ abort();
+ }
+ }
+#endif
+
add_cpp_dir_path (p, chain);
}
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