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); } ass='sub'>
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