Implements {fetch,configure,build,install}_clean.

build.sh:buildp_dispatch_fail_pkg(): print NL when writing to ${DEFAULT_BUILD_LAST_FAILED_PKG_FNAME}.
etc/{README.md,build.usage}: updated.
midipix.env: updated.
subr.rtl/rtl_complex.subr:rtl_sunset(): initial implementation.
subr.rtl/rtl_list.subr:rtl_l{filter[23],length2,lift[23]}(): initial implementation.
subr.rtl/rtl_state.subr:rtl_state_test(): take ${_build_steps} vs. ${_build_step}.
subr/{build_init,ex_pkg_restart}.subr: splits extended restart syntax processing logic.
subr/ex_pkg_exec.subr:ex_pkg_exec(): filter "start".
subr/pkg_{build,configure,fetch,install}_clean.subr: initial implementation.

1 files changed, 55 insertions, 47 deletions

diff --git a/midipix.env b/midipix.env
index f0233986..51f3d40c 100644
--- a/midipix.env
+++ b/midipix.env
@@ -9,34 +9,42 @@
 #
 
 # Build {step,variable}s
-DEFAULT_BUILD_STEPS="										\
-	start											\
-	fetch_download fetch_extract 								\
-	configure_patch_pre configure_autotools configure_patch configure			\
-	build											\
-	install_subdirs install_make install_files install_libs install install_rpm		\
-	clean											\
+DEFAULT_BUILD_STEPS="											\
+	fetch_clean fetch_download fetch_extract 							\
+	configure_clean configure_patch_pre configure_autotools configure_patch configure		\
+	build_clean build										\
+	install_clean install_subdirs install_make install_files install_libs install install_rpm	\
+	clean												\
 	finish";
-DEFAULT_BUILD_VARS="										\
-	AR BASE_DIR BUILD_DIR BUILD_STEPS_DISABLE BUILD_TYPE					\
-	CC CFLAGS_BUILD CFLAGS_BUILD_EXTRA CFLAGS_CONFIGURE					\
-	CFLAGS_CONFIGURE_EXTRA CONFIG_CACHE CONFIG_CACHE_EXTRA					\
-	CONFIG_CACHE_LOCAL CONFIGURE CONFIGURE_ARGS CONFIGURE_ARGS_EXTRA			\
-	CXX CXXFLAGS_CONFIGURE CXXFLAGS_CONFIGURE_EXTRA						\
-	DEPENDS DESTDIR DESTDIR_HOST DISABLED ENV_VARS_EXTRA					\
-	FNAME FORCE_AUTORECONF GITROOT INHERIT_FROM INSTALL_FILES				\
-	INSTALL_FILES_DESTDIR INSTALL_FILES_DESTDIR_EXTRA INSTALL_TARGET			\
-	INSTALL_TARGET_EXTRA IN_TREE LDFLAGS_BUILD_EXTRA LDFLAGS_CONFIGURE			\
-	LDFLAGS_CONFIGURE_EXTRA LIBTOOL MAKE MAKE_INSTALL_VNAME					\
-	MAKE_SUBDIRS MAKEFLAGS_BUILD MAKEFLAGS_BUILD_EXTRA					\
-	MAKEFLAGS_INSTALL MAKEFLAGS_INSTALL_EXTRA MAKEFLAGS_VERBOSITY				\
-	MIRRORS MIRRORS_GIT SOFORT_FORCE SOFORT_NATIVE_CC SOFORT_NATIVE_CFLAGS			\
-	SOFORT_NATIVE_CFLAGS_EXTRA SOFORT_NATIVE_CXX SOFORT_NATIVE_CXXFLAGS			\
-	SOFORT_NATIVE_CXXFLAGS_EXTRA SOFORT_NATIVE_LD SOFORT_NATIVE_LDFLAGS			\
-	SOFORT_NATIVE_LDFLAGS_EXTRA NO_CLEAN NO_CLEAN_BASE_DIR NO_LOG_VARS			\
-	PYTHON PATCHES_EXTRA PKG_CONFIG PKG_CONFIG_LIBDIR PKGLIST_DISABLE PREFIX		\
+DEFAULT_BUILD_VARS="											\
+	AR BASE_DIR BUILD_DIR BUILD_STEPS_DISABLE BUILD_TYPE						\
+	CC CFLAGS_BUILD CFLAGS_BUILD_EXTRA CFLAGS_CONFIGURE						\
+	CFLAGS_CONFIGURE_EXTRA CONFIG_CACHE CONFIG_CACHE_EXTRA						\
+	CONFIG_CACHE_LOCAL CONFIGURE CONFIGURE_ARGS CONFIGURE_ARGS_EXTRA				\
+	CXX CXXFLAGS_CONFIGURE CXXFLAGS_CONFIGURE_EXTRA							\
+	DEPENDS DESTDIR DESTDIR_HOST DISABLED ENV_VARS_EXTRA						\
+	FNAME FORCE_AUTORECONF GITROOT INHERIT_FROM INSTALL_FILES					\
+	INSTALL_FILES_DESTDIR INSTALL_FILES_DESTDIR_EXTRA INSTALL_TARGET				\
+	INSTALL_TARGET_EXTRA IN_TREE LDFLAGS_BUILD_EXTRA LDFLAGS_CONFIGURE				\
+	LDFLAGS_CONFIGURE_EXTRA LIBTOOL MAKE MAKE_INSTALL_VNAME						\
+	MAKE_SUBDIRS MAKEFLAGS_BUILD MAKEFLAGS_BUILD_EXTRA						\
+	MAKEFLAGS_INSTALL MAKEFLAGS_INSTALL_EXTRA MAKEFLAGS_VERBOSITY					\
+	MIRRORS MIRRORS_GIT SOFORT_FORCE SOFORT_NATIVE_CC SOFORT_NATIVE_CFLAGS				\
+	SOFORT_NATIVE_CFLAGS_EXTRA SOFORT_NATIVE_CXX SOFORT_NATIVE_CXXFLAGS				\
+	SOFORT_NATIVE_CXXFLAGS_EXTRA SOFORT_NATIVE_LD SOFORT_NATIVE_LDFLAGS				\
+	SOFORT_NATIVE_LDFLAGS_EXTRA NO_CLEAN NO_CLEAN_BASE_DIR NO_LOG_VARS				\
+	PYTHON PATCHES_EXTRA PKG_CONFIG PKG_CONFIG_LIBDIR PKGLIST_DISABLE PREFIX			\
 	RANLIB RPM_DISABLE SHA256SUM SUBDIR TARGET URL URLS_GIT VERSION";
 
+#
+# Prerequisite commands
+DEFAULT_PREREQS="											\
+	awk bunzip2 bzip2 cat chmod cmake cp date find flock						\
+	g++ gcc git grep gunzip gzip hostname id install kill						\
+	ln lzip make mkdir mkfifo mktemp mv paste patch perl						\
+	pgrep pkill printf readlink rm sed sha256sum sort						\
+	stat tail tar test touch tr uniq wget xz zip";
+
 # Path names
 : ${PREFIX_ROOT:="${HOME}/midipix"};
 : ${PREFIX:="${PREFIX_ROOT}/${ARCH}/${BUILD_KIND}"};
@@ -48,36 +56,36 @@ DEFAULT_BUILD_VARS="										\
 : ${BUILD_DLCACHEDIR:="${PREFIX_ROOT}/dlcache"};
 : ${BUILD_WORKDIR:="${PREFIX}/tmp"};
 : ${DEFAULT_CHECK_PATH_VARS:="PREFIX PREFIX_NATIVE PREFIX_CROSS BUILD_DLCACHEDIR BUILD_WORKDIR"};
-: ${DEFAULT_CLEAR_ENV_VARS_EXCEPT:="								\
-	HOME PATH TERM USER									\
-	ARCH BUILD_KIND										\
-	BUILD_DLCACHEDIR BUILD_HNAME BUILD_WORKDIR						\
+: ${DEFAULT_CLEAR_ENV_VARS_EXCEPT:="									\
+	HOME PATH TERM USER										\
+	ARCH BUILD_KIND											\
+	BUILD_DLCACHEDIR BUILD_HNAME BUILD_WORKDIR							\
 	PREFIX PREFIX_CROSS PREFIX_MINGW32 PREFIX_MINIPIX PREFIX_NATIVE PREFIX_ROOT PREFIX_RPM"};
 : ${DEFAULT_CLEAR_PREFIX_PATHS:="
 	bin i686-nt32-midipix doc include info lib lib64 libexec man minipix minipix_dist native
 	rpm sbin share tmp usr x86_64-nt64-midipix x86_64-w64-mingw32 pkglist.cross pkglist.host
 	pkglist.native SHA256SUMS SHA256SUMS.last"};
-: ${DEFAULT_INSTALL_FILES_DESTDIR:="								\
-	/=bin /=include /=lib /=lib/pkgconfig /=sbin						\
-	/=share /=share/doc /=share/info /=share/man						\
-	/=share/man/man1 /=share/man/man2 /=share/man/man3 /=share/man/man4 /=share/man/man5	\
-	/=share/man/man6 /=share/man/man7 /=share/man/man8 /=share/man/man9			\
-	@share/doc=doc										\
-	@share/info=info									\
-	@lib=lib64										\
-	@share/man=man										\
-	@../lib/pkgconfig=share/pkgconfig							\
+: ${DEFAULT_INSTALL_FILES_DESTDIR:="									\
+	/=bin /=include /=lib /=lib/pkgconfig /=sbin							\
+	/=share /=share/doc /=share/info /=share/man							\
+	/=share/man/man1 /=share/man/man2 /=share/man/man3 /=share/man/man4 /=share/man/man5		\
+	/=share/man/man6 /=share/man/man7 /=share/man/man8 /=share/man/man9				\
+	@share/doc=doc											\
+	@share/info=info										\
+	@lib=lib64											\
+	@share/man=man											\
+	@../lib/pkgconfig=share/pkgconfig								\
 	@.=usr"};
-: ${DEFAULT_LOG_ENV_VARS:="									\
-	ARCH BUILD_KIND BUILD_DLCACHEDIR BUILD_WORKDIR DEFAULT_GITROOT				\
-	HOME PATH PREFIX PREFIX_CROSS PREFIX_MINGW32 PREFIX_MINIPIX				\
+: ${DEFAULT_LOG_ENV_VARS:="										\
+	ARCH BUILD_KIND BUILD_DLCACHEDIR BUILD_WORKDIR DEFAULT_GITROOT					\
+	HOME PATH PREFIX PREFIX_CROSS PREFIX_MINGW32 PREFIX_MINIPIX					\
 	PREFIX_NATIVE PREFIX_RPM USER"};
-: ${DEFAULT_MIRRORS:="										\
-https://midipix.org/mirror/									\
-https://midipix.lucioillanes.de/archives/							\
+: ${DEFAULT_MIRRORS:="											\
+https://midipix.org/mirror/										\
+https://midipix.lucioillanes.de/archives/								\
 "};
-: ${DEFAULT_MIRRORS_GIT:="									\
-https://midipix.lucioillanes.de/repos_git/							\
+: ${DEFAULT_MIRRORS_GIT:="										\
+https://midipix.lucioillanes.de/repos_git/								\
 "};
 
 # Default flags & variables