Ignore system include dirs for bindgen

rust_bindgen reaches out to system local include dirs such as
/usr/include with high priority. This causes build failures when system
has broken/missing headers. The solution is to always add `-nostdinc` to
ignore them.

Change-Id: I81370f072013518722d9213ad148d6b78eccffd6

gbl/libavb/BUILD.avb.bazel

diff --git a/gbl/libavb/BUILD.avb.bazel b/gbl/libavb/BUILD.avb.bazel
index 0e8117b..bc709a6 100644
--- a/gbl/libavb/BUILD.avb.bazel
+++ b/gbl/libavb/BUILD.avb.bazel
@@ -60,6 +60,7 @@
         ".",
         "libavb/sha/",
     ],
+    deps = ["@gbl//libavb:gbl_deps"],
 )
 
 cc_library(
@@ -158,7 +159,10 @@
     clang_flags = select({
         "@gbl//toolchain:gbl_rust_uefi_x86_32": ["-m32"],
         "//conditions:default": ["-m64"],
-    }) + ["-I{}".format(LLVM_PREBUILTS_C_INCLUDE)],
+    }) + [
+        "-I{}".format(LLVM_PREBUILTS_C_INCLUDE),
+        "-nostdinc",
+    ],
     header = "libavb/libavb.h",
 )
 

gbl/libbootimg/BUILD

diff --git a/gbl/libbootimg/BUILD b/gbl/libbootimg/BUILD
index 2a6dc85..7299022 100644
--- a/gbl/libbootimg/BUILD
+++ b/gbl/libbootimg/BUILD
@@ -71,6 +71,7 @@
     }) + [
         "-x",
         "c++",
+        "-nostdinc",
     ],
     header = "@mkbootimg//:include/bootimg/bootimg.h",
 )

gbl/libefi/BUILD

diff --git a/gbl/libefi/BUILD b/gbl/libefi/BUILD
index ee4ae1e..0c75174 100644
--- a/gbl/libefi/BUILD
+++ b/gbl/libefi/BUILD
@@ -76,7 +76,10 @@
     clang_flags = select({
         "@gbl//toolchain:gbl_rust_uefi_x86_32": ["-m32"],
         "//conditions:default": ["-m64"],
-    }) + ["-I{}".format(LLVM_PREBUILTS_C_INCLUDE)],
+    }) + [
+        "-I{}".format(LLVM_PREBUILTS_C_INCLUDE),
+        "-nostdinc",
+    ],
     header = "defs/efi.h",
 )
 

gbl/libfdt/BUILD

diff --git a/gbl/libfdt/BUILD b/gbl/libfdt/BUILD
index e5de3cb..a2b1814 100644
--- a/gbl/libfdt/BUILD
+++ b/gbl/libfdt/BUILD
@@ -48,7 +48,10 @@
     clang_flags = select({
         "@gbl//toolchain:gbl_rust_uefi_x86_32": ["-m32"],
         "//conditions:default": ["-m64"],
-    }) + ["-I{}".format(LLVM_PREBUILTS_C_INCLUDE)],
+    }) + [
+        "-I{}".format(LLVM_PREBUILTS_C_INCLUDE),
+        "-nostdinc",
+    ],
     header = "@libfdt_c//:libfdt.h",
 )