Revert "ccache: update to 4.1"

This reverts commit b1952dc259 as it's
causing issues on the buildbot which uses some kind of ccache wrapper
and so the breakage needs to be investigated further:

 bash: cmake: command not found
 time: tools/ccache/compile#0.05#0.03#0.15
     ERROR: tools/ccache failed to build.

Signed-off-by: Petr Štetiar <ynezz@true.cz>

tools/ccache/Makefile

@@ -8,22 +8,25 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/target.mk
 
 PKG_NAME:=ccache
-PKG_VERSION:=4.1
+PKG_VERSION:=3.7.11
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=https://github.com/ccache/ccache/releases/download/v$(PKG_VERSION)
-PKG_HASH:=5fdc804056632d722a1182e15386696f0ea6c59cb4ab4d65a54f0b269ae86f99
-
-HOST_BUILD_PARALLEL:=1
+PKG_HASH:=8d450208099a4d202bd7df87caaec81baee20ce9dd62da91e9ea7b95a9072f68
 
 include $(INCLUDE_DIR)/host-build.mk
-include $(INCLUDE_DIR)/cmake.mk
+
+HOST_CONFIGURE_VARS += CC="$(HOSTCC_NOCACHE)"
 
 define Host/Install/ccache
 	$(INSTALL_DIR) $(STAGING_DIR_HOST)/bin/
 	$(CP) ./files/* $(STAGING_DIR_HOST)/bin/
 endef
 
+define Host/Clean
+	-$(MAKE) -C $(HOST_BUILD_DIR) uninstall
+	$(call Host/Clean/Default)
+endef
 define Host/Install
 	$(call Host/Install/Default)
 	$(call Host/Install/ccache)

tools/ccache/patches/100-honour-copts.patch

@@ -1,10 +1,10 @@
---- a/src/ccache.cpp
-+++ b/src/ccache.cpp
-@@ -1654,6 +1654,7 @@ calculate_result_name(Context& ctx,
-                              "CPLUS_INCLUDE_PATH",
-                              "OBJC_INCLUDE_PATH",
-                              "OBJCPLUS_INCLUDE_PATH", // clang
-+                             "GCC_HONOUR_COPTS",
-                              nullptr};
-     for (const char** p = envvars; *p; ++p) {
-       const char* v = getenv(*p);
+--- a/src/ccache.c
++++ b/src/ccache.c
+@@ -2277,6 +2277,7 @@ calculate_object_hash(struct args *args,
+ 			"CPLUS_INCLUDE_PATH",
+ 			"OBJC_INCLUDE_PATH",
+ 			"OBJCPLUS_INCLUDE_PATH", // clang
++			"GCC_HONOUR_COPTS",
+ 			NULL
+ 		};
+ 		for (const char **p = envvars; *p; ++p) {