1 files changed, 108 insertions, 0 deletions
diff --git a/scripts/build/companion_libs/050-zlib.sh b/scripts/build/companion_libs/050-zlib.sh
new file mode 100644
index 00000000..45518e9e
--- /dev/null
+++ b/scripts/build/companion_libs/050-zlib.sh
@@ -0,0 +1,108 @@
+# This file adds the functions to build the zlib library
+# Copyright 2017 Alexey Neyman
+# Licensed under the GPL v2. See COPYING in the root of this package
+
+do_zlib_get() { :; }
+do_zlib_extract() { :; }
+do_zlib_for_build() { :; }
+do_zlib_for_host() { :; }
+do_zlib_for_target() { :; }
+
+# Overide functions depending on configuration
+if [ "${CT_ZLIB}" = "y" ]; then
+
+# Download zlib
+do_zlib_get() {
+    CT_GetFile "zlib-${CT_ZLIB_VERSION}"         \
+        "http://downloads.sourceforge.net/project/libpng/zlib/${CT_ZLIB_VERSION}"
+}
+
+# Extract zlib
+do_zlib_extract() {
+    CT_Extract "zlib-${CT_ZLIB_VERSION}"
+    CT_Patch "zlib" "${CT_ZLIB_VERSION}"
+}
+
+# Build zlib for running on build
+# - always build statically
+# - install in build-tools prefix
+do_zlib_for_build() {
+    local -a zlib_opts
+
+    case "${CT_TOOLCHAIN_TYPE}" in
+        native|cross)   return 0;;
+    esac
+
+    CT_DoStep INFO "Installing zlib for build"
+    CT_mkdir_pushd "${CT_BUILD_DIR}/build-zlib-build-${CT_BUILD}"
+
+    zlib_opts+=( "host=${CT_BUILD}" )
+    zlib_opts+=( "prefix=${CT_BUILDTOOLS_PREFIX_DIR}" )
+    zlib_opts+=( "cflags=${CT_CFLAGS_FOR_BUILD}" )
+    zlib_opts+=( "ldflags=${CT_LDFLAGS_FOR_BUILD}" )
+    do_zlib_backend "${zlib_opts[@]}"
+
+    CT_Popd
+    CT_EndStep
+}
+
+# Build zlib for running on host
+do_zlib_for_host() {
+    local -a zlib_opts
+
+    CT_DoStep INFO "Installing zlib for host"
+    CT_mkdir_pushd "${CT_BUILD_DIR}/build-zlib-host-${CT_HOST}"
+
+    zlib_opts+=( "host=${CT_HOST}" )
+    zlib_opts+=( "prefix=${CT_HOST_COMPLIBS_DIR}" )
+    zlib_opts+=( "cflags=${CT_CFLAGS_FOR_HOST}" )
+    zlib_opts+=( "ldflags=${CT_LDFLAGS_FOR_HOST}" )
+    do_zlib_backend "${zlib_opts[@]}"
+
+    CT_Popd
+    CT_EndStep
+}
+
+# Build zlib
+#     Parameter     : description               : type      : default
+#     host          : machine to run on         : tuple     : (none)
+#     prefix        : prefix to install into    : dir       : (none)
+#     cflags        : cflags to use             : string    : (empty)
+#     ldflags       : ldflags to use            : string    : (empty)
+do_zlib_backend() {
+    local host
+    local prefix
+    local cflags
+    local ldflags
+    local arg
+    local -a extra_config
+
+    for arg in "$@"; do
+        eval "${arg// /\\ }"
+    done
+
+    CT_DoLog EXTRA "Configuring zlib"
+
+    CT_DoExecLog CFG                                  \
+    CFLAGS="${cflags}"                                \
+    LDFLAGS="${ldflags}"                              \
+    CROSS_PREFIX="${host}-"                           \
+    ${CONFIG_SHELL}                                   \
+    "${CT_SRC_DIR}/zlib-${CT_ZLIB_VERSION}/configure" \
+        --prefix="${prefix}"                          \
+        --static                                      \
+        "${extra_config[@]}"
+
+    CT_DoLog EXTRA "Building zlib"
+    CT_DoExecLog ALL make ${JOBSFLAGS}
+
+    if [ "${CT_COMPLIBS_CHECK}" = "y" ]; then
+        CT_DoLog EXTRA "Checking zlib"
+        CT_DoExecLog ALL make ${JOBSFLAGS} -s check
+    fi
+
+    CT_DoLog EXTRA "Installing zlib"
+    CT_DoExecLog ALL make install
+}
+
+fi # CT_ZLIB