Implements CMake support.

etc/README.md: updated.
groups/{000.host_tools,010.host_deps,200.native_packages,800.minipix}.group:${*_SOFORT_NATIVE_{C,CXX,LD}FLAGS}: merged into midipix.env.
groups/010.host_deps.group:{clang,cmake_host,libzip,llvm}_host:${PKG_CMAKE_ARGS_EXTRA}: added.
groups/010.host_deps.group:cmake_host:${PKG_CONFIGURE_TYPE}: configure w/ cmake.
groups/010.host_deps.group:cmake_host:${PKG_INSTALL_FILES}: added.
groups/010.host_deps.group:expat_host:${PKG_CONFIGURE_TYPE}: configure w/ autotools.
groups/010.host_deps.group:python[23]_host:${PKG_{ENV_VARS_EXTRA,SOFORT_FORCE}}: removed.
groups/010.host_deps.group:python[23]_host:${PKG_CONFIGURE_TYPE}: configure w/ sofort.
groups/010.host_deps.group:python[23]_host:${PKG_SOFORT_NATIVE_CC}: removed.
groups/221.native_packages_dev.group:python[23]:${PKG_SOFORT_FORCE}: removed.
groups/221.native_packages_dev.group:python[23]:${PKG_CONFIGURE_TYPE}: configure w/ sofort.
groups/231.native_packages_etc.group:{cmake,minizip,openjpeg,tdnf,xpdf}:${PKG_CMAKE_ARGS_EXTRA}: added.
groups/231.native_packages_etc.group:cmake:${PKG_CONFIGURE_ARGS}: removed.
groups/231.native_packages_etc.group:utf8proc:${PKG_IN_TREE}: don't build in-tree.
groups/251.native_packages_lib.group:lib{jpeg_turbo,solv,ssh,zip}:${PKG_CMAKE_ARGS_EXTRA}: added.
midipix.env:${DEFAULT_BUILD_VARS}: adds ${PKG_{CMAKE{,_{ARGS{,_EXTRA},LISTFILE}},CONFIGURE_TYPE},SOFORT_NATIVE_{C{C,XX},{C,CXX,LD}FLAGS,LD}}.
midipix.env:${DEFAULT_BUILD_VARS}: removes ${PKG_SOFORT_FORCE}.
midipix.env:${DEFAULT_{CMAKE_LISTFILE,{CROSS,HOST,NATIVE}_CMAKE}}: added.
subr.rtl/rtl_complex.subr:rtl_export_vars(): ignore values during -u.
subr.rtl/rtl_platform.subr:rtl_set_vars(): updated.
subr/ex_pkg_env.subr:exp_pkg_env_set(): always convert ${PKG_{AR,CC,CXX,PKG_CONFIG,RANLIB}} to absolute pathnames.
subr/ex_pkg_env.subr:ex_pkg_env_sofort(): merged into subr/pkg_configure.subr.
subr/ex_pkg_restart.subr:ex_pkg_process_restart_spec(): remove extraneous echo.
subr/pkg_configure.subr:pkgp_configure_{cmake,sofort}(): initial implementation.
subr/pkg_configure.subr:pkg_configure(): attempt configuration using autotools, sofort, or cmake.
subr/pkg_configure_autotools.subr: skip if ${PKG_CONFIGURE_TYPE} is set and not "autotools".
subr/pkg_fetch_clean.subr: fix typo.
vars/{clang_host,cmake{,_host},lib{jpeg_turbo,solv,ssh,zip{,_host}},llvm_host,lolcode,minizip,openjpeg,tdnf,xpdf}.vars: deleted.

2 files changed, 15 insertions, 15 deletions

diff --git a/subr.rtl/rtl_complex.subr b/subr.rtl/rtl_complex.subr
index 61637f69..f315fd90 100644
--- a/subr.rtl/rtl_complex.subr
+++ b/subr.rtl/rtl_complex.subr
@@ -4,15 +4,15 @@
 
 rtl_export_vars() {
 	local _unsetfl=0; [ "x${1}" = "x-u" ] && { _unsetfl=1; shift; };
+
 	while [ "${#}" -ge 2 ]; do
-		if [ -n "${2}" ]; then
-			if [ "${_unsetfl:-0}" -eq 0 ]; then
-				rtl_set_var_unsafe "${1}" "${2}"; export "${1}";
-			else
-				unset "${1}";
-			fi;
-		fi;
-		shift 2;
+		if [ "${2:+1}" = 1 ]\
+		|| [ "${_unsetfl}" -eq 1 ]; then
+			case "${_unsetfl}" in
+			0)	rtl_set_var_unsafe "${1}" "${2}"; export "${1}"; ;;
+			1)	unset "${1}"; ;;
+			esac;
+		fi; shift 2;
 	done;
 };
 
diff --git a/subr.rtl/rtl_platform.subr b/subr.rtl/rtl_platform.subr
index c8137e56..ac411c87 100644
--- a/subr.rtl/rtl_platform.subr
+++ b/subr.rtl/rtl_platform.subr
@@ -108,17 +108,17 @@ rtl_run_cmd_unsplit() {
 rtl_set_vars() {
 	local	_vars_set_vname="${1}" _vname_dst="${2}" _vname_src_tmpls="${3}"	\
 		_vars_set_old="" _vars_set_tmp="" _vname_src="";
+
 	for _vname_src in $(rtl_toupper "${_vname_src_tmpls}"); do
 		_vname_src="${_vname_src}_${_vname_dst}";
-		_vval_src="$(rtl_get_var_unsafe "${_vname_src}")";
-		if [ -n "${_vval_src}" ]; then
-			rtl_set_var_unsafe "PKG_${_vname_dst}" "${_vval_src}";
-			_vars_set_tmp="$(rtl_lconcat "${_vars_set_tmp}" "PKG_${_vname_dst}")";
+		eval _vval_src='${'"${_vname_src}"':-}';
+		if [ "${_vval_src:+1}" = 1 ]; then
+			eval PKG_${_vname_dst}='${_vval_src}';
+			_vars_set_tmp="${_vars_set_tmp:+${_vars_set_tmp} }PKG_${_vname_dst}";
 		fi;
 	done;
-	_vars_set_old="$(rtl_get_var_unsafe "${_vars_set_vname}")";
-	rtl_set_var_unsafe "${_vars_set_vname}"					\
-		"$(rtl_lconcat "${_vars_set_old}" "${_vars_set_tmp}")";
+	eval _vars_set_old='${'"${_vars_set_vname}"'}';
+	rtl_set_var_unsafe "${_vars_set_vname}" "${_vars_set_old:+${_vars_set_old} }${_vars_set_tmp}";
 };
 
 # vim:filetype=sh