Disable canonical prefixes of system headers
GCC know a few pre-defined paths (relative to its location) to
search for headers, libraries, program, etc. By default GCC prefixes
its own path(argv[0]) and calls realpath() which result in absolute
path with all symlink, . and .. removed.
It's usually good to have canonicalised paths, but absolute paths
in *.d file can cause unnecessary relinking when stale entries
in ccache cache hit
Add -no-canonical-prefixes (gcc>=4.6) and
-fno-canonical-system-headers (gcc>4.6) to disable realpath() on
prefixed paths
Change-Id: I58d739e61fb013015fb05a9c98b2132b307f915a
diff --git a/core/combo/TARGET_linux-arm.mk b/core/combo/TARGET_linux-arm.mk
index 81d0813..8c8a01a 100644
--- a/core/combo/TARGET_linux-arm.mk
+++ b/core/combo/TARGET_linux-arm.mk
@@ -103,6 +103,8 @@
-Werror=format-security \
-D_FORTIFY_SOURCE=2 \
-fno-short-enums \
+ -no-canonical-prefixes \
+ -fno-canonical-system-headers \
$(arch_variant_cflags) \
-include $(android_config_h) \
-I $(dir $(android_config_h))