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# Build script for m4
do_companion_tools_m4_get()
{
CT_Fetch M4
}
do_companion_tools_m4_extract()
{
CT_ExtractPatch M4
}
do_companion_tools_m4_for_build()
{
CT_DoStep INFO "Installing m4 for build"
CT_mkdir_pushd "${CT_BUILD_DIR}/build-m4-build"
do_m4_backend \
host=${CT_BUILD} \
prefix="${CT_BUILD_COMPTOOLS_DIR}" \
cflags="${CT_CFLAGS_FOR_BUILD}" \
ldflags="${CT_LDFLAGS_FOR_BUILD}"
CT_Popd
CT_EndStep
}
do_companion_tools_m4_for_host()
{
CT_DoStep INFO "Installing m4 for host"
CT_mkdir_pushd "${CT_BUILD_DIR}/build-m4-host"
do_m4_backend \
host=${CT_HOST} \
prefix="${CT_PREFIX_DIR}" \
cflags="${CT_CFLAGS_FOR_HOST}" \
ldflags="${CT_LDFLAGS_FOR_HOST}"
CT_Popd
CT_EndStep
}
do_m4_backend()
{
local host
local prefix
local cflags
local ldflags
local libs
for arg in "$@"; do
eval "${arg// /\\ }"
done
case "${host}" in
*-uclibc)
# uClibc has posix_spawn in librt, but m4 configure only
# searches in libc. This leads to a later failure when
# it includes system <spawn.h> but expects a locally-built
# posix_spawn().
ldflags="${ldflags} -lrt"
;;
*-mingw32)
# m4 is built with stack smashing protection enabled which
# is not part of mingw-w64 c library in v7.0.0 and later.
libs="${libs} -lssp"
;;
esac
CT_DoLog EXTRA "Configuring m4"
CT_DoExecLog CFG \
CFLAGS="${cflags}" \
LDFLAGS="${ldflags}" \
LIBS="${libs}" \
${CONFIG_SHELL} \
"${CT_SRC_DIR}/m4/configure" \
--host="${host}" \
--prefix="${prefix}"
CT_DoLog EXTRA "Building m4"
CT_DoExecLog ALL make
CT_DoLog EXTRA "Installing m4"
CT_DoExecLog ALL make install
}
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