[PATCHv3] ccache: update to 4.1

[Rosen Penev]

Upstream switched to building with CMake. Adjust accordingly.

Reapplied patch as upstream changed the file format.

Added HOST_BUILD_PARALLEL for faster compilation.

Added cmake tool dependency.

Adjusted dependent tools to use NOCACHE as they are needed to build
ccache.

Signed-off-by: Rosen Penev <rosenp at gmail.com>
---
 v3: zstd was missing in the commit for some reason
 v2: fix compilation issues without OS tools.
 tools/Makefile                              |  1 +
 tools/ccache/Makefile                       | 17 +++++++++--------
 tools/ccache/patches/100-honour-copts.patch | 20 ++++++++++----------
 tools/libressl/Makefile                     |  1 +
 tools/pkgconf/Makefile                      |  2 ++
 tools/zstd/Makefile                         |  1 +
 6 files changed, 24 insertions(+), 18 deletions(-)

diff --git a/tools/Makefile b/tools/Makefile
index c66d4fb991..316ffb5ea6 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -82,6 +82,7 @@ endif
 ifneq ($(CONFIG_CCACHE)$(CONFIG_SDK),)
 $(foreach tool, $(filter-out xz patch,$(tools-y)), $(eval $(curdir)/$(tool)/compile += $(curdir)/ccache/compile))
 tools-y += ccache
+$(curdir)/ccache/compile := $(curdir)/cmake/compile $(curdir)/zstd/compile
 endif
 
 # in case there is no patch tool on the host we need to make patch tool a
diff --git a/tools/ccache/Makefile b/tools/ccache/Makefile
index 6e55001fd5..e016e0beb3 100644
--- a/tools/ccache/Makefile
+++ b/tools/ccache/Makefile
@@ -1,4 +1,4 @@
-# 
+#
 # Copyright (C) 2006-2015 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
@@ -8,25 +8,26 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/target.mk
 
 PKG_NAME:=ccache
-PKG_VERSION:=3.7.11
+PKG_VERSION:=4.1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=https://github.com/ccache/ccache/releases/download/v$(PKG_VERSION)
-PKG_HASH:=8d450208099a4d202bd7df87caaec81baee20ce9dd62da91e9ea7b95a9072f68
+PKG_HASH:=5fdc804056632d722a1182e15386696f0ea6c59cb4ab4d65a54f0b269ae86f99
+
+HOST_BUILD_PARALLEL:=1
 
 include $(INCLUDE_DIR)/host-build.mk
+include $(INCLUDE_DIR)/cmake.mk
 
-HOST_CONFIGURE_VARS += CC="$(HOSTCC_NOCACHE)"
+CMAKE_HOST_OPTIONS += \
+	-DCMAKE_C_COMPILER_LAUNCHER="" \
+	-DCMAKE_CXX_COMPILER_LAUNCHER=""
 
 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)
diff --git a/tools/ccache/patches/100-honour-copts.patch b/tools/ccache/patches/100-honour-copts.patch
index ccfa1c0247..e4045ef9be 100644
--- a/tools/ccache/patches/100-honour-copts.patch
+++ b/tools/ccache/patches/100-honour-copts.patch
@@ -1,10 +1,10 @@
---- 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) {
+--- 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);
diff --git a/tools/libressl/Makefile b/tools/libressl/Makefile
index dbd8ca4d1a..2b5a33450c 100644
--- a/tools/libressl/Makefile
+++ b/tools/libressl/Makefile
@@ -23,6 +23,7 @@ HOST_BUILD_PARALLEL:=1
 
 include $(INCLUDE_DIR)/host-build.mk
 
+HOSTCC := $(HOSTCC_NOCACHE)
 HOST_CONFIGURE_ARGS += --enable-static --disable-shared --disable-tests
 HOST_CFLAGS += $(FPIC)
 
diff --git a/tools/pkgconf/Makefile b/tools/pkgconf/Makefile
index 7d785aae39..0f56de0e29 100644
--- a/tools/pkgconf/Makefile
+++ b/tools/pkgconf/Makefile
@@ -19,6 +19,8 @@ include $(INCLUDE_DIR)/host-build.mk
 
 unexport PKG_CONFIG
 
+HOSTCC := $(HOSTCC_NOCACHE)
+
 define Host/Install
 	$(MAKE) -C $(HOST_BUILD_DIR) install
 	mv $(STAGING_DIR_HOST)/bin/pkgconf $(STAGING_DIR_HOST)/bin/pkg-config.real
diff --git a/tools/zstd/Makefile b/tools/zstd/Makefile
index 7459725e8e..ec85362544 100644
--- a/tools/zstd/Makefile
+++ b/tools/zstd/Makefile
@@ -15,6 +15,7 @@ HOST_BUILD_PARALLEL:=1
 
 include $(INCLUDE_DIR)/host-build.mk
 
+HOSTCC := $(HOSTCC_NOCACHE)
 HOST_MAKE_FLAGS = PREFIX=$(HOST_BUILD_PREFIX) HAVE_ZLIB=0 HAVE_LZMA=0 HAVE_LZ4=0
 
 $(eval $(call HostBuild))
-- 
2.29.2