Support custom build directories and move includes

One of the neat tricks an autoconf style project is capable of
is allow configurion/building in a directory other than the
source directory.  The major advantage to this is that you can
build the project various different ways while making changes
in a single source tree.

For example, this project is designed to work on various different
Linux distributions each of which work slightly differently.  This
means that changes need to verified on each of those supported
distributions perferably before the change is committed to the
public git repo.

Using nfs and custom build directories makes this much easier.
I now have a single source tree in nfs mounted on several different
systems each running a supported distribution.  When I make a
change to the source base I suspect may break things I can
concurrently build from the same source on all the systems each
in their own subdirectory.

wget -c http://github.com/downloads/behlendorf/zfs/zfs-x.y.z.tar.gz
tar -xzf zfs-x.y.z.tar.gz
cd zfs-x-y-z

------------------------- run concurrently ----------------------
<ubuntu system>  <fedora system>  <debian system>  <rhel6 system>
mkdir ubuntu     mkdir fedora     mkdir debian     mkdir rhel6
cd ubuntu        cd fedora        cd debian        cd rhel6
../configure     ../configure     ../configure     ../configure
make             make             make             make
make check       make check       make check       make check

This change also moves many of the include headers from individual
incude/sys directories under the modules directory in to a single
top level include directory.  This has the advantage of making
the build rules cleaner and logically it makes a bit more sense.

1 files changed, 232 insertions, 63 deletions

diff --git a/lib/libspl/include/Makefile.in b/lib/libspl/include/Makefile.in
index c17a435aa..ec0dd912c 100644
--- a/lib/libspl/include/Makefile.in
+++ b/lib/libspl/include/Makefile.in
@@ -36,7 +36,7 @@ build_triplet = @build@
 host_triplet = @host@
 target_triplet = @target@
 subdir = lib/libspl/include
-DIST_COMMON = $(nobase_pkginclude_HEADERS) $(srcdir)/Makefile.am \
+DIST_COMMON = $(libspl_HEADERS) $(srcdir)/Makefile.am \
 	$(srcdir)/Makefile.in
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps =  \
@@ -83,6 +83,13 @@ am__v_at_ = $(am__v_at_$(AM_DEFAULT_VERBOSITY))
 am__v_at_0 = @
 SOURCES =
 DIST_SOURCES =
+RECURSIVE_TARGETS = all-recursive check-recursive dvi-recursive \
+	html-recursive info-recursive install-data-recursive \
+	install-dvi-recursive install-exec-recursive \
+	install-html-recursive install-info-recursive \
+	install-pdf-recursive install-ps-recursive install-recursive \
+	installcheck-recursive installdirs-recursive pdf-recursive \
+	ps-recursive uninstall-recursive
 am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
 am__vpath_adj = case $$p in \
     $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
@@ -104,11 +111,42 @@ am__nobase_list = $(am__nobase_strip_setup); \
 am__base_list = \
   sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
   sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
-am__installdirs = "$(DESTDIR)$(pkgincludedir)"
-HEADERS = $(nobase_pkginclude_HEADERS)
+am__installdirs = "$(DESTDIR)$(libspldir)"
+HEADERS = $(libspl_HEADERS)
+RECURSIVE_CLEAN_TARGETS = mostlyclean-recursive clean-recursive	\
+  distclean-recursive maintainer-clean-recursive
+AM_RECURSIVE_TARGETS = $(RECURSIVE_TARGETS:-recursive=) \
+	$(RECURSIVE_CLEAN_TARGETS:-recursive=) tags TAGS ctags CTAGS \
+	distdir
 ETAGS = etags
 CTAGS = ctags
+DIST_SUBDIRS = $(SUBDIRS)
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+am__relativize = \
+  dir0=`pwd`; \
+  sed_first='s,^\([^/]*\)/.*$$,\1,'; \
+  sed_rest='s,^[^/]*/*,,'; \
+  sed_last='s,^.*/\([^/]*\)$$,\1,'; \
+  sed_butlast='s,/*[^/]*$$,,'; \
+  while test -n "$$dir1"; do \
+    first=`echo "$$dir1" | sed -e "$$sed_first"`; \
+    if test "$$first" != "."; then \
+      if test "$$first" = ".."; then \
+        dir2=`echo "$$dir0" | sed -e "$$sed_last"`/"$$dir2"; \
+        dir0=`echo "$$dir0" | sed -e "$$sed_butlast"`; \
+      else \
+        first2=`echo "$$dir2" | sed -e "$$sed_first"`; \
+        if test "$$first2" = "$$first"; then \
+          dir2=`echo "$$dir2" | sed -e "$$sed_rest"`; \
+        else \
+          dir2="../$$dir2"; \
+        fi; \
+        dir0="$$dir0"/"$$first"; \
+      fi; \
+    fi; \
+    dir1=`echo "$$dir1" | sed -e "$$sed_rest"`; \
+  done; \
+  reldir="$$dir2"
 ACLOCAL = @ACLOCAL@
 ALIEN = @ALIEN@
 ALIEN_VERSION = @ALIEN_VERSION@
@@ -119,14 +157,12 @@ AUTOCONF = @AUTOCONF@
 AUTOHEADER = @AUTOHEADER@
 AUTOMAKE = @AUTOMAKE@
 AWK = @AWK@
-BUILDDIR = @BUILDDIR@
 CC = @CC@
 CCAS = @CCAS@
 CCASDEPMODE = @CCASDEPMODE@
 CCASFLAGS = @CCASFLAGS@
 CCDEPMODE = @CCDEPMODE@
 CFLAGS = @CFLAGS@
-CMDDIR = @CMDDIR@
 CPP = @CPP@
 CPPFLAGS = @CPPFLAGS@
 CYGPATH_W = @CYGPATH_W@
@@ -164,7 +200,6 @@ KERNELMAKE_PARAMS = @KERNELMAKE_PARAMS@
 LD = @LD@
 LDFLAGS = @LDFLAGS@
 LIBBLKID = @LIBBLKID@
-LIBDIR = @LIBDIR@
 LIBOBJS = @LIBOBJS@
 LIBS = @LIBS@
 LIBTOOL = @LIBTOOL@
@@ -179,7 +214,6 @@ LTLIBOBJS = @LTLIBOBJS@
 MAINT = @MAINT@
 MAKEINFO = @MAKEINFO@
 MKDIR_P = @MKDIR_P@
-MODDIR = @MODDIR@
 NM = @NM@
 NMEDIT = @NMEDIT@
 OBJDUMP = @OBJDUMP@
@@ -198,7 +232,6 @@ RPM = @RPM@
 RPMBUILD = @RPMBUILD@
 RPMBUILD_VERSION = @RPMBUILD_VERSION@
 RPM_VERSION = @RPM_VERSION@
-SCRIPTDIR = @SCRIPTDIR@
 SED = @SED@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
@@ -208,7 +241,6 @@ SPL_SYMBOLS = @SPL_SYMBOLS@
 SPL_VERSION = @SPL_VERSION@
 STRIP = @STRIP@
 TARGET_ASM_DIR = @TARGET_ASM_DIR@
-TOPDIR = @TOPDIR@
 VENDOR = @VENDOR@
 VERSION = @VERSION@
 ZFS_CONFIG = @ZFS_CONFIG@
@@ -279,9 +311,34 @@ target_vendor = @target_vendor@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
-nobase_pkginclude_HEADERS = *.h ia32/sys/*.h rpc/*.h sys/*.h \
-	sys/dktp/*.h sys/sysevent/*.h util/*.h
-all: all-am
+SUBDIRS = ia32 rpc sys util
+libspldir = $(includedir)/libspl
+libspl_HEADERS = \
+	$(top_srcdir)/lib/libspl/include/assert.h \
+	$(top_srcdir)/lib/libspl/include/atomic.h \
+	$(top_srcdir)/lib/libspl/include/attr.h \
+	$(top_srcdir)/lib/libspl/include/devid.h \
+	$(top_srcdir)/lib/libspl/include/libdevinfo.h \
+	$(top_srcdir)/lib/libspl/include/libshare.h \
+	$(top_srcdir)/lib/libspl/include/limits.h \
+	$(top_srcdir)/lib/libspl/include/locale.h \
+	$(top_srcdir)/lib/libspl/include/note.h \
+	$(top_srcdir)/lib/libspl/include/priv.h \
+	$(top_srcdir)/lib/libspl/include/statcommon.h \
+	$(top_srcdir)/lib/libspl/include/stdio.h \
+	$(top_srcdir)/lib/libspl/include/stdlib.h \
+	$(top_srcdir)/lib/libspl/include/string.h \
+	$(top_srcdir)/lib/libspl/include/strings.h \
+	$(top_srcdir)/lib/libspl/include/stropts.h \
+	$(top_srcdir)/lib/libspl/include/synch.h \
+	$(top_srcdir)/lib/libspl/include/thread.h \
+	$(top_srcdir)/lib/libspl/include/tzfile.h \
+	$(top_srcdir)/lib/libspl/include/ucred.h \
+	$(top_srcdir)/lib/libspl/include/umem.h \
+	$(top_srcdir)/lib/libspl/include/unistd.h \
+	$(top_srcdir)/lib/libspl/include/zone.h
+
+all: all-recursive
 
 .SUFFIXES:
 $(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__configure_deps)
@@ -320,29 +377,96 @@ mostlyclean-libtool:
 
 clean-libtool:
 	-rm -rf .libs _libs
-install-nobase_pkgincludeHEADERS: $(nobase_pkginclude_HEADERS)
+install-libsplHEADERS: $(libspl_HEADERS)
 	@$(NORMAL_INSTALL)
-	test -z "$(pkgincludedir)" || $(MKDIR_P) "$(DESTDIR)$(pkgincludedir)"
-	@list='$(nobase_pkginclude_HEADERS)'; test -n "$(pkgincludedir)" || list=; \
-	$(am__nobase_list) | while read dir files; do \
-	  xfiles=; for file in $$files; do \
-	    if test -f "$$file"; then xfiles="$$xfiles $$file"; \
-	    else xfiles="$$xfiles $(srcdir)/$$file"; fi; done; \
-	  test -z "$$xfiles" || { \
-	    test "x$$dir" = x. || { \
-	      echo "$(MKDIR_P) '$(DESTDIR)$(pkgincludedir)/$$dir'"; \
-	      $(MKDIR_P) "$(DESTDIR)$(pkgincludedir)/$$dir"; }; \
-	    echo " $(INSTALL_HEADER) $$xfiles '$(DESTDIR)$(pkgincludedir)/$$dir'"; \
-	    $(INSTALL_HEADER) $$xfiles "$(DESTDIR)$(pkgincludedir)/$$dir" || exit $$?; }; \
+	test -z "$(libspldir)" || $(MKDIR_P) "$(DESTDIR)$(libspldir)"
+	@list='$(libspl_HEADERS)'; test -n "$(libspldir)" || list=; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_HEADER) $$files '$(DESTDIR)$(libspldir)'"; \
+	  $(INSTALL_HEADER) $$files "$(DESTDIR)$(libspldir)" || exit $$?; \
 	done
 
-uninstall-nobase_pkgincludeHEADERS:
+uninstall-libsplHEADERS:
 	@$(NORMAL_UNINSTALL)
-	@list='$(nobase_pkginclude_HEADERS)'; test -n "$(pkgincludedir)" || list=; \
-	$(am__nobase_strip_setup); files=`$(am__nobase_strip)`; \
+	@list='$(libspl_HEADERS)'; test -n "$(libspldir)" || list=; \
+	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
 	test -n "$$files" || exit 0; \
-	echo " ( cd '$(DESTDIR)$(pkgincludedir)' && rm -f" $$files ")"; \
-	cd "$(DESTDIR)$(pkgincludedir)" && rm -f $$files
+	echo " ( cd '$(DESTDIR)$(libspldir)' && rm -f" $$files ")"; \
+	cd "$(DESTDIR)$(libspldir)" && rm -f $$files
+
+# This directory's subdirectories are mostly independent; you can cd
+# into them and run `make' without going through this Makefile.
+# To change the values of `make' variables: instead of editing Makefiles,
+# (1) if the variable is set in `config.status', edit `config.status'
+#     (which will cause the Makefiles to be regenerated when you run `make');
+# (2) otherwise, pass the desired values on the `make' command line.
+$(RECURSIVE_TARGETS):
+	@fail= failcom='exit 1'; \
+	for f in x $$MAKEFLAGS; do \
+	  case $$f in \
+	    *=* | --[!k]*);; \
+	    *k*) failcom='fail=yes';; \
+	  esac; \
+	done; \
+	dot_seen=no; \
+	target=`echo $@ | sed s/-recursive//`; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    dot_seen=yes; \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  ($(am__cd) $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	  || eval $$failcom; \
+	done; \
+	if test "$$dot_seen" = "no"; then \
+	  $(MAKE) $(AM_MAKEFLAGS) "$$target-am" || exit 1; \
+	fi; test -z "$$fail"
+
+$(RECURSIVE_CLEAN_TARGETS):
+	@fail= failcom='exit 1'; \
+	for f in x $$MAKEFLAGS; do \
+	  case $$f in \
+	    *=* | --[!k]*);; \
+	    *k*) failcom='fail=yes';; \
+	  esac; \
+	done; \
+	dot_seen=no; \
+	case "$@" in \
+	  distclean-* | maintainer-clean-*) list='$(DIST_SUBDIRS)' ;; \
+	  *) list='$(SUBDIRS)' ;; \
+	esac; \
+	rev=''; for subdir in $$list; do \
+	  if test "$$subdir" = "."; then :; else \
+	    rev="$$subdir $$rev"; \
+	  fi; \
+	done; \
+	rev="$$rev ."; \
+	target=`echo $@ | sed s/-recursive//`; \
+	for subdir in $$rev; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  ($(am__cd) $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	  || eval $$failcom; \
+	done && test -z "$$fail"
+tags-recursive:
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  test "$$subdir" = . || ($(am__cd) $$subdir && $(MAKE) $(AM_MAKEFLAGS) tags); \
+	done
+ctags-recursive:
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  test "$$subdir" = . || ($(am__cd) $$subdir && $(MAKE) $(AM_MAKEFLAGS) ctags); \
+	done
 
 ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
 	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
@@ -354,10 +478,23 @@ ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
 	mkid -fID $$unique
 tags: TAGS
 
-TAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+TAGS: tags-recursive $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
 		$(TAGS_FILES) $(LISP)
 	set x; \
 	here=`pwd`; \
+	if ($(ETAGS) --etags-include --version) >/dev/null 2>&1; then \
+	  include_option=--etags-include; \
+	  empty_fix=.; \
+	else \
+	  include_option=--include; \
+	  empty_fix=; \
+	fi; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    test ! -f $$subdir/TAGS || \
+	      set "$$@" "$$include_option=$$here/$$subdir/TAGS"; \
+	  fi; \
+	done; \
 	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
 	unique=`for i in $$list; do \
 	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
@@ -376,7 +513,7 @@ TAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
 	  fi; \
 	fi
 ctags: CTAGS
-CTAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+CTAGS: ctags-recursive $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
 		$(TAGS_FILES) $(LISP)
 	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
 	unique=`for i in $$list; do \
@@ -426,22 +563,51 @@ distdir: $(DISTFILES)
 	    || exit 1; \
 	  fi; \
 	done
+	@list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    test -d "$(distdir)/$$subdir" \
+	    || $(MKDIR_P) "$(distdir)/$$subdir" \
+	    || exit 1; \
+	  fi; \
+	done
+	@list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    dir1=$$subdir; dir2="$(distdir)/$$subdir"; \
+	    $(am__relativize); \
+	    new_distdir=$$reldir; \
+	    dir1=$$subdir; dir2="$(top_distdir)"; \
+	    $(am__relativize); \
+	    new_top_distdir=$$reldir; \
+	    echo " (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) top_distdir="$$new_top_distdir" distdir="$$new_distdir" \\"; \
+	    echo "     am__remove_distdir=: am__skip_length_check=: am__skip_mode_fix=: distdir)"; \
+	    ($(am__cd) $$subdir && \
+	      $(MAKE) $(AM_MAKEFLAGS) \
+	        top_distdir="$$new_top_distdir" \
+	        distdir="$$new_distdir" \
+		am__remove_distdir=: \
+		am__skip_length_check=: \
+		am__skip_mode_fix=: \
+	        distdir) \
+	      || exit 1; \
+	  fi; \
+	done
 check-am: all-am
-check: check-am
+check: check-recursive
 all-am: Makefile $(HEADERS)
-installdirs:
-	for dir in "$(DESTDIR)$(pkgincludedir)"; do \
+installdirs: installdirs-recursive
+installdirs-am:
+	for dir in "$(DESTDIR)$(libspldir)"; do \
 	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
 	done
-install: install-am
-install-exec: install-exec-am
-install-data: install-data-am
-uninstall: uninstall-am
+install: install-recursive
+install-exec: install-exec-recursive
+install-data: install-data-recursive
+uninstall: uninstall-recursive
 
 install-am: all-am
 	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
 
-installcheck: installcheck-am
+installcheck: installcheck-recursive
 install-strip:
 	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
 	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
@@ -458,86 +624,89 @@ distclean-generic:
 maintainer-clean-generic:
 	@echo "This command is intended for maintainers to use"
 	@echo "it deletes files that may require special tools to rebuild."
-clean: clean-am
+clean: clean-recursive
 
 clean-am: clean-generic clean-libtool mostlyclean-am
 
-distclean: distclean-am
+distclean: distclean-recursive
 	-rm -f Makefile
 distclean-am: clean-am distclean-generic distclean-tags
 
-dvi: dvi-am
+dvi: dvi-recursive
 
 dvi-am:
 
-html: html-am
+html: html-recursive
 
 html-am:
 
-info: info-am
+info: info-recursive
 
 info-am:
 
-install-data-am: install-nobase_pkgincludeHEADERS
+install-data-am: install-libsplHEADERS
 
-install-dvi: install-dvi-am
+install-dvi: install-dvi-recursive
 
 install-dvi-am:
 
 install-exec-am:
 
-install-html: install-html-am
+install-html: install-html-recursive
 
 install-html-am:
 
-install-info: install-info-am
+install-info: install-info-recursive
 
 install-info-am:
 
 install-man:
 
-install-pdf: install-pdf-am
+install-pdf: install-pdf-recursive
 
 install-pdf-am:
 
-install-ps: install-ps-am
+install-ps: install-ps-recursive
 
 install-ps-am:
 
 installcheck-am:
 
-maintainer-clean: maintainer-clean-am
+maintainer-clean: maintainer-clean-recursive
 	-rm -f Makefile
 maintainer-clean-am: distclean-am maintainer-clean-generic
 
-mostlyclean: mostlyclean-am
+mostlyclean: mostlyclean-recursive
 
 mostlyclean-am: mostlyclean-generic mostlyclean-libtool
 
-pdf: pdf-am
+pdf: pdf-recursive
 
 pdf-am:
 
-ps: ps-am
+ps: ps-recursive
 
 ps-am:
 
-uninstall-am: uninstall-nobase_pkgincludeHEADERS
+uninstall-am: uninstall-libsplHEADERS
 
-.MAKE: install-am install-strip
+.MAKE: $(RECURSIVE_CLEAN_TARGETS) $(RECURSIVE_TARGETS) ctags-recursive \
+	install-am install-strip tags-recursive
 
-.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
-	clean-libtool ctags distclean distclean-generic \
+.PHONY: $(RECURSIVE_CLEAN_TARGETS) $(RECURSIVE_TARGETS) CTAGS GTAGS \
+	all all-am check check-am clean clean-generic clean-libtool \
+	ctags ctags-recursive distclean distclean-generic \
 	distclean-libtool distclean-tags distdir dvi dvi-am html \
 	html-am info info-am install install-am install-data \
 	install-data-am install-dvi install-dvi-am install-exec \
 	install-exec-am install-html install-html-am install-info \
-	install-info-am install-man install-nobase_pkgincludeHEADERS \
-	install-pdf install-pdf-am install-ps install-ps-am \
-	install-strip installcheck installcheck-am installdirs \
+	install-info-am install-libsplHEADERS install-man install-pdf \
+	install-pdf-am install-ps install-ps-am install-strip \
+	installcheck installcheck-am installdirs installdirs-am \
 	maintainer-clean maintainer-clean-generic mostlyclean \
 	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
-	tags uninstall uninstall-am uninstall-nobase_pkgincludeHEADERS
+	tags tags-recursive uninstall uninstall-am \
+	uninstall-libsplHEADERS
 
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.