libfmt: add host build

required for ccache-4.10

packages/devel/libfmt/package.mk

@@ -7,12 +7,29 @@ PKG_SHA256="1250e4cc58bf06ee631567523f48848dc4596133e163f02615c97f78bab6c811"
 PKG_LICENSE="BSD"
 PKG_SITE="https://github.com/fmtlib/fmt"
 PKG_URL="https://github.com/fmtlib/fmt/archive/${PKG_VERSION}.tar.gz"
+PKG_DEPENDS_HOST="cmake:host make:host"
 PKG_DEPENDS_TARGET="toolchain"
 PKG_LONGDESC="fmt is an open-source formatting library for C++. It can be used as a safe alternative to printf or as a fast alternative to IOStreams."
+PKG_TOOLCHAIN="cmake-make"
+PKG_BUILD_FLAGS="+local-cc"
 
-PKG_CMAKE_OPTS_TARGET="-DCMAKE_CXX_STANDARD=14 \
+PKG_CMAKE_OPTS_COMMON="-DCMAKE_CXX_STANDARD=14 \
                        -DCMAKE_CXX_EXTENSIONS:BOOL=OFF \
                        -DFMT_DOC=OFF \
                        -DFMT_INSTALL=ON \
                        -DFMT_TEST=OFF \
                        -DBUILD_SHARED_LIBS=ON"
+
+PKG_CMAKE_OPTS_TARGET="${PKG_CMAKE_OPTS_COMMON}"
+
+configure_host() {
+  # custom cmake build to override the LOCAL_CC/CXX
+  cp ${CMAKE_CONF} cmake-ccache.conf
+
+  echo "SET(CMAKE_C_COMPILER   ${CC})"  >> cmake-ccache.conf
+  echo "SET(CMAKE_CXX_COMPILER ${CXX})" >> cmake-ccache.conf
+  cmake -DCMAKE_TOOLCHAIN_FILE=cmake-ccache.conf \
+        -DCMAKE_INSTALL_PREFIX=${TOOLCHAIN} \
+        ${PKG_CMAKE_OPTS_COMMON} \
+        ..
+}