[source] ccache: disable assembler support, it breaks kernel initramfs images

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/720f8eb18ec1201998734d59bd12e97105bed604

commit 720f8eb18ec1201998734d59bd12e97105bed604
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Wed Oct 5 09:45:59 2016 +0200

    ccache: disable assembler support, it breaks kernel initramfs images
    
    The reason is that ccache does not recognize and process the .incbin
    directive, so caching is unreliable.
    See https://github.com/ccache/ccache/issues/136 for more information.
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 .../patches/110-disable-assembler-support.patch    | 32 ++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/tools/ccache/patches/110-disable-assembler-support.patch b/tools/ccache/patches/110-disable-assembler-support.patch
new file mode 100644
index 0000000..3e6cd8c
--- /dev/null
+++ b/tools/ccache/patches/110-disable-assembler-support.patch
@@ -0,0 +1,32 @@
+--- a/language.c
++++ b/language.c
+@@ -37,14 +37,18 @@ static const struct {
+ 	{".m",   "objective-c"},
+ 	{".M",   "objective-c++"},
+ 	{".mm",  "objective-c++"},
++#if 0
+ 	{".sx",  "assembler-with-cpp"},
+ 	{".S",   "assembler-with-cpp"},
++#endif
+ 	// Preprocessed:
+ 	{".i",   "cpp-output"},
+ 	{".ii",  "c++-cpp-output"},
+ 	{".mi",  "objective-c-cpp-output"},
+ 	{".mii", "objective-c++-cpp-output"},
++#if 0
+ 	{".s",   "assembler"},
++#endif
+ 	// Header file (for precompilation):
+ 	{".h",   "c-header"},
+ 	{".H",   "c++-header"},
+@@ -109,8 +113,10 @@ static const struct {
+ 	{"objective-c++-header",     "objective-c++-cpp-output"},
+ 	{"objective-c++-cpp-output", "objective-c++-cpp-output"},
+ 	{"cuda",                     "cuda-output"},
++#if 0
+ 	{"assembler-with-cpp",       "assembler"},
+ 	{"assembler",                "assembler"},
++#endif
+ 	{"f77-cpp-input",            "f77"},
+ 	{"f77",                      "f77"},
+ #if 0 // Could generate module files, ignore for now!