build system: additional Makefile fragments

              better handling of dependencies for highly parallel make

git-svn-id: svn://tug.org/texlive/trunk@31127 c570f23f-e606-0410-a88d-b1316a301751

3 files changed, 72 insertions, 28 deletions

diff --git a/Build/source/libs/gd/ChangeLog b/Build/source/libs/gd/ChangeLog
index ebd1a50d38a..e0b2d76b66b 100644
--- a/Build/source/libs/gd/ChangeLog
+++ b/Build/source/libs/gd/ChangeLog
@@ -1,3 +1,7 @@
+2012-07-06  Peter Breitenlohner  <peb@mppmu.mpg.de>
+
+	* Makefile.am: Use ../../am/reconfig.am and ../../am/rebuild.am.
+
 2013-07-05  Peter Breitenlohner  <peb@mppmu.mpg.de>
 
 	* include/Makefile.am: Moved Makefile fragments to ../../am/.
diff --git a/Build/source/libs/gd/Makefile.am b/Build/source/libs/gd/Makefile.am
index 2a6a57dc882..950925cce17 100644
--- a/Build/source/libs/gd/Makefile.am
+++ b/Build/source/libs/gd/Makefile.am
@@ -8,10 +8,6 @@
 ##
 ACLOCAL_AMFLAGS = -I ../../m4
 
-# Rebuild
-.PHONY: rebuild
-rebuild: all
-
 ## We want to re-distribute the whole original libgd source tree.
 ##
 EXTRA_DIST = $(GD_TREE)
@@ -104,14 +100,21 @@ libgd_a_SOURCES = \
 
 $(libgd_a_OBJECTS): config.force
 
-config.force: $(LIBPNG_DEPEND) $(FREETYPE2_DEPEND)
-	echo timestamp >config.force
-	$(SHELL) ./config.status --recheck
-
-DISTCLEANFILES = config.force
-
 ## Rebuild libpng
 @LIBPNG_RULE@
 ## Rebuild libfreetype
 @FREETYPE2_RULE@
 
+# Reconfig
+reconfig_prereq = $(LIBPNG_DEPEND) $(FREETYPE2_DEPEND)
+DISTCLEANFILES =
+
+include $(srcdir)/../../am/reconfig.am
+
+# Rebuild
+rebuild_prereq =
+rebuild_target = all
+CLEANFILES =
+
+include $(srcdir)/../../am/rebuild.am
+
diff --git a/Build/source/libs/gd/Makefile.in b/Build/source/libs/gd/Makefile.in
index 61b3ad5483c..da1048ce098 100644
--- a/Build/source/libs/gd/Makefile.in
+++ b/Build/source/libs/gd/Makefile.in
@@ -79,21 +79,23 @@ POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
 @WIN32_TRUE@am__append_1 = -DNONDLL -DBGDWIN32
-subdir = .
-DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
-	$(top_srcdir)/configure $(am__configure_deps) \
-	$(srcdir)/config.h.in $(top_srcdir)/../../build-aux/depcomp \
-	ChangeLog README ../../build-aux/compile \
-	../../build-aux/config.guess ../../build-aux/config.sub \
-	../../build-aux/depcomp ../../build-aux/install-sh \
-	../../build-aux/missing ../../build-aux/texinfo.tex \
-	../../build-aux/ylwrap ../../build-aux/ltmain.sh \
+DIST_COMMON = $(srcdir)/../../am/reconfig.am \
+	$(srcdir)/../../am/rebuild.am $(srcdir)/Makefile.in \
+	$(srcdir)/Makefile.am $(top_srcdir)/configure \
+	$(am__configure_deps) $(srcdir)/config.h.in \
+	$(top_srcdir)/../../build-aux/depcomp ChangeLog README \
+	../../build-aux/compile ../../build-aux/config.guess \
+	../../build-aux/config.sub ../../build-aux/depcomp \
+	../../build-aux/install-sh ../../build-aux/missing \
+	../../build-aux/texinfo.tex ../../build-aux/ylwrap \
+	../../build-aux/ltmain.sh \
 	$(top_srcdir)/../../build-aux/compile \
 	$(top_srcdir)/../../build-aux/config.guess \
 	$(top_srcdir)/../../build-aux/config.sub \
 	$(top_srcdir)/../../build-aux/install-sh \
 	$(top_srcdir)/../../build-aux/ltmain.sh \
 	$(top_srcdir)/../../build-aux/missing
+subdir = .
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/../../m4/kpse-common.m4 \
 	$(top_srcdir)/../../m4/kpse-freetype2-flags.m4 \
@@ -467,7 +469,15 @@ libgd_a_SOURCES = \
 	@GD_TREE@/src/wbmp.c \
 	@GD_TREE@/src/webpimg.c
 
+
+# Reconfig
+reconfig_prereq = $(LIBPNG_DEPEND) $(FREETYPE2_DEPEND)
 DISTCLEANFILES = config.force
+
+# Rebuild
+rebuild_prereq = 
+rebuild_target = all
+CLEANFILES = rebuild.stamp
 all: config.h
 	$(MAKE) $(AM_MAKEFLAGS) all-recursive
 
@@ -475,7 +485,7 @@ all: config.h
 .SUFFIXES: .c .lo .o .obj
 am--refresh: Makefile
 	@:
-$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__configure_deps)
+$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(srcdir)/../../am/reconfig.am $(srcdir)/../../am/rebuild.am $(am__configure_deps)
 	@for dep in $?; do \
 	  case '$(am__configure_deps)' in \
 	    *$$dep*) \
@@ -498,6 +508,7 @@ Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
 	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe)'; \
 	    cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe);; \
 	esac;
+$(srcdir)/../../am/reconfig.am $(srcdir)/../../am/rebuild.am:
 
 $(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
 	$(SHELL) ./config.status --recheck
@@ -1034,6 +1045,7 @@ install-strip:
 mostlyclean-generic:
 
 clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
 
 distclean-generic:
 	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
@@ -1140,10 +1152,6 @@ uninstall-am:
 	uninstall-am
 
 
-# Rebuild
-.PHONY: rebuild
-rebuild: all
-
 # in case of an SVN repository
 dist-hook:
 	rm -rf `find $(distdir) -name .svn -o -name .deps -o -name .dirstamp -o -name '*.$(OBJEXT)'`
@@ -1171,12 +1179,41 @@ dist-hook:
 
 $(libgd_a_OBJECTS): config.force
 
-config.force: $(LIBPNG_DEPEND) $(FREETYPE2_DEPEND)
-	echo timestamp >config.force
-	$(SHELL) ./config.status --recheck
-
 @LIBPNG_RULE@
 @FREETYPE2_RULE@
+config.force: $(reconfig_prereq)
+	@if test -f $@; then :; else \
+	  trap 'rm -rf reconfig.lock' 1 2 13 15; \
+	  if mkdir reconfig.lock 2>/dev/null; then \
+	    echo timestamp >$@; \
+	    $(SHELL) ./config.status --recheck; \
+	    rmdir reconfig.lock; \
+	  else \
+	    while test -d rebuild.lock && test -z "$$dry"; do sleep 1; done; \
+	    test -f $@; \
+	  fi; \
+	fi
+rebuild.stamp:
+	echo timestamp >$@
+
+.PHONY: rebuild
+rebuild: $(rebuild_prereq)
+	@dry=; for f in x $$MAKEFLAGS; do \
+	  case $$f in \
+	    *=*|--*);; \
+	    *n*) dry=:;; \
+	  esac; \
+	done; \
+	if test -f rebuild.stamp; then :; else \
+	  $$dry trap 'rm -rf rebuild.lock' 1 2 13 15; \
+	  if $$dry mkdir rebuild.lock 2>/dev/null; then \
+	    $(MAKE) $(AM_MAKEFLAGS) $(rebuild_target) rebuild.stamp; \
+	    $$dry rmdir rebuild.lock; \
+	  else \
+	    while test -d rebuild.lock && test -z "$$dry"; do sleep 1; done; \
+	    $$dry test -f rebuild.stamp; exit $$?; \
+	  fi; \
+	fi
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.