tools/expat: build with autotools again

Allows to set expat as a dependency to cmake and save on compilation
time.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

tools/Makefile

@@ -22,13 +22,13 @@ ifneq ($(CONFIG_SDK)$(CONFIG_PACKAGE_kmod-b43)$(CONFIG_PACKAGE_b43legacy-firmwar
 endif
 
 tools-y += autoconf autoconf-archive automake bc bison cmake cpio dosfstools
-tools-y += e2fsprogs fakeroot findutils firmware-utils flex gengetopt
+tools-y += e2fsprogs expat fakeroot findutils firmware-utils flex gengetopt
 tools-y += libressl libtool lzma m4 make-ext4fs meson missing-macros mkimage
 tools-y += mklibs mtd-utils mtools ninja padjffs2 patch-image
 tools-y += patchelf pkgconf quilt squashfskit4 sstrip zip zlib zstd
 tools-$(BUILD_B43_TOOLS) += b43-tools
 tools-$(BUILD_ISL) += isl
-tools-$(BUILD_TOOLCHAIN) += expat gmp mpc mpfr
+tools-$(BUILD_TOOLCHAIN) += gmp mpc mpfr
 tools-$(CONFIG_TARGET_apm821xx)$(CONFIG_TARGET_gemini) += genext2fs
 tools-$(CONFIG_TARGET_ath79) += lzma-old squashfs
 tools-$(CONFIG_TARGET_mxs) += elftosb sdimage
@@ -47,7 +47,6 @@ $(curdir)/bison/compile := $(curdir)/flex/compile
 $(curdir)/cbootimage/compile += $(curdir)/automake/compile
 $(curdir)/cmake/compile += $(curdir)/libressl/compile $(curdir)/ninja/compile
 $(curdir)/dosfstools/compile := $(curdir)/autoconf/compile $(curdir)/automake/compile
-$(curdir)/expat/compile := $(curdir)/cmake/compile
 $(curdir)/e2fsprogs/compile := $(curdir)/libtool/compile
 $(curdir)/fakeroot/compile := $(curdir)/libtool/compile
 $(curdir)/findutils/compile := $(curdir)/bison/compile

tools/expat/Makefile

@@ -15,19 +15,19 @@ PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_HASH:=a247a7f6bbb21cf2ca81ea4cbb916bfb9717ca523631675f99b3d4a5678dcd16
 PKG_SOURCE_URL:=https://github.com/libexpat/libexpat/releases/download/R_$(subst .,_,$(PKG_VERSION))
 
-include $(INCLUDE_DIR)/host-build.mk
-include $(INCLUDE_DIR)/cmake.mk
+HOST_BUILD_PARALLEL:=1
 
-CMAKE_HOST_OPTIONS += \
-	-DDOCBOOK_TO_MAN=OFF \
-	-DEXPAT_BUILD_TOOLS=OFF \
-	-DEXPAT_BUILD_EXAMPLES=OFF \
-	-DEXPAT_BUILD_TESTS=OFF \
-	-DEXPAT_BUILD_DOCS=OFF \
-	-DEXPAT_WITH_LIBBSD=OFF \
-	-DEXPAT_ENABLE_INSTALL=ON \
-	-DEXPAT_DTD=ON \
-	-DEXPAT_NS=OFF \
-	-DEXPAT_DEV_URANDOM=OFF
+include $(INCLUDE_DIR)/host-build.mk
+
+HOSTCC := $(HOSTCC_NOCACHE)
+
+HOST_CONFIGURE_ARGS += \
+	--disable-shared \
+	--without-docbook \
+	--with-pic
+
+define Host/Uninstall
+	-$(call Host/Compile/Default,uninstall)
+endef
 
 $(eval $(call HostBuild))