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On hosts with FORTIFY_SOURCES, stringize support is required, as it's used by
the macros to wrap functions (e.g. read and open in unistd.h). Those wrappers
use the STRING() macro from unistd.h. A header in the bash sources overrides
the unistd.h macro to 'x' when HAVE_STRINGIZE is not defined, causing the
wrappers to generate calls to 'xread' and 'xopen', which do not exist,
resulting in a failure to link.
Assume we have stringize support when cross-compiling, which works around the
issue.
It may be best for upstream to either give up on supporting compilers without
stringize support, or to not define STRING() at all when FORTIFY_SOURCES is
defined, letting the unistd.h one be used, instead.
Upstream-Status: Pending
Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
--- bash-4.2.orig/builtins/mkbuiltins.c
+++ bash-4.2/builtins/mkbuiltins.c
@@ -28,6 +28,7 @@
# define HAVE_STDLIB_H
# define HAVE_RENAME
+# define HAVE_STRINGIZE
#endif /* CROSS_COMPILING */
#if defined (HAVE_UNISTD_H)
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