Now make will recurse into subdirectories of a thorn.

In your make.code.defn file put lines

SRCS = <sources in this directory>
SUBDIRS= <all subdirectories - e.g. what find . -type d would give you>

then in each subdirectory put a make.code.defn containing

SRCS = <sources in this directory>

(N.B. you cannot currently put a SUBDIRS line here)

along with make.code.deps files in all the directories.

Make will then go into the relevant subdirectory and make the object files there
 before updating the library file.

The first time it does this you will get errors of the form

cannot find <subdir-name>/make.identity

you should ignore these errors, as the make system then creates the files.  If I find  a way to do this without the errors, I'll be happy 8-)  The files are used to keep track of the subdirectory filenames.

Tom


git-svn-id: http://svn.cactuscode.org/flesh/trunk@66 17b73243-c579-4c4c-a9d2-2d5706c11dac

5 files changed, 101 insertions, 6 deletions

diff --git a/lib/make/make.configuration b/lib/make/make.configuration
index 06fc172b..9ebdf452 100644
--- a/lib/make/make.configuration
+++ b/lib/make/make.configuration
@@ -8,11 +8,14 @@
 #  @version $Id$
 # @@*/
 
+# Silence all but designated output
+#.SILENT:
+
 # Some configuration variables
 CONFIG = $(TOP)/config-data
 
 DATESTAMP = $(CCTK_HOME)/src/datestamp.c
-MAKE_DIR  = $(CCTK_HOME)/lib/make
+export MAKE_DIR  = $(CCTK_HOME)/lib/make
 
 # Dividers to make the screen output slightly nicer
 DIVEL   =  __________________
@@ -24,9 +27,6 @@ include $(CONFIG)/make.config.defn
 # Include the list of thorns to be built
 include $(CONFIG)/make.thornlist
 
-# Silence all but designated output
-.SILENT:
-
 # Build the executable
 $(EXE): $(CONFIG)/make.thornlist $(patsubst %,$(CCTK_LIBDIR)/lib%.a,$(notdir $(THORNS))) $(CCTK_LIBDIR)/libCCTK.a
 	@echo $(DIVIDER)
diff --git a/lib/make/make.post b/lib/make/make.post
new file mode 100644
index 00000000..32d64bed
--- /dev/null
+++ b/lib/make/make.post
@@ -0,0 +1,14 @@
+# /*@@
+#   @file      make.post
+#   @date      Mon Jan 18 19:17:14 1999
+#   @author    Tom Goodale
+#   @desc 
+#   Post wrapper after including a make.code.defn file in a
+#   subdirectory.  
+#   @enddesc 
+# @@*/
+
+# This is a simply expanded variable (i.e. :=, rather than =)
+# and is used to track all source files
+
+CCTK_SRCS += $(addprefix $(CCTK_THIS_SUBDIR)/, $(SRCS))
diff --git a/lib/make/make.pre b/lib/make/make.pre
new file mode 100644
index 00000000..c1a92711
--- /dev/null
+++ b/lib/make/make.pre
@@ -0,0 +1,13 @@
+# /*@@
+#   @file      make.pre
+#   @date      Mon Jan 18 19:15:50 1999
+#   @author    Tom Goodale
+#   @desc 
+#   Pre wrapper before including a make.code.defn file in a
+#   subdirectory.  
+#   @enddesc 
+#   @version $Id$
+# @@*/
+
+# Reset SRCS just in case someone uses +=
+SRCS = 
diff --git a/lib/make/make.subdir b/lib/make/make.subdir
new file mode 100644
index 00000000..82a72ac7
--- /dev/null
+++ b/lib/make/make.subdir
@@ -0,0 +1,36 @@
+# /*@@
+#   @file      make.subdir
+#   @date      Mon Jan 18 19:12:31 1999
+#   @author    Tom Goodale
+#   @desc 
+#   Makes the object files in a subdirectory
+#   @enddesc 
+#   @version $Id$
+# @@*/
+
+# Silence all but designated output
+.SILENT:
+
+# Include the main make definitions for this configuration
+include $(CONFIG)/make.config.defn
+
+# Add appropriate include lines
+INC_DIRS += $(SRCDIR) $(SRCDIR)/include $(CONFIG) $(CCTK_HOME)/src/include
+
+# Include the subdirectories local include data
+include $(SRCDIR)/make.code.defn
+
+# Turn source file names into object file names
+OBJS = $(patsubst %,%.o,$(basename $(SRCS)))
+
+# Build all the object files
+.PHONY:all
+
+all: $(OBJS)
+
+# Rules to make the object files
+include $(CONFIG)/make.config.rules
+
+# Extra subdir-specific dependencies
+include $(SRCDIR)/make.code.deps
+
diff --git a/lib/make/make.thornlib b/lib/make/make.thornlib
index 70dc440b..389bb0f8 100644
--- a/lib/make/make.thornlib
+++ b/lib/make/make.thornlib
@@ -17,14 +17,32 @@ include $(CONFIG)/make.config.defn
 # Add appropriate include lines
 INC_DIRS += $(SRCDIR) $(SRCDIR)/include $(CONFIG) $(CCTK_HOME)/src/include
 
+# Define some make variables
+PRE_WRAPPER = make.pre
+POST_WRAPPER = make.post
+
+CCTK_SRCS :=
+
 # Include the thorn's local include data
 include $(SRCDIR)/make.code.defn
 
+# Some extra stuff to allow make to recurse into subdirectories
+CCTK_SRCS += $(SRCS)
+
+# Include all the make.code.defn files for the subdirectories
+# These have to be wrapped to allow us to concatanate all the
+# SRCS definitions, complete with subdirectory names.
+ifneq ($(strip $(SUBDIRS)),)
+include $(foreach DIR,$(SUBDIRS), $(DIR)/make.identity $(MAKE_DIR)/$(PRE_WRAPPER) $(SRCDIR)/$(DIR)/make.code.defn $(MAKE_DIR)/$(POST_WRAPPER))
+endif
+
+SRCS = $(CCTK_SRCS)
+
 # Turn source file names into object file names
 OBJS = $(patsubst %,%.o,$(basename $(SRCS)))
 
-$(NAME): $(OBJS)
-	echo Creating or updating $(NAME)
+$(NAME): $(addsuffix .check, $(SUBDIRS)) $(OBJS) $(SRCDIR)/make.code.defn $(foreach DIR,$(SUBDIRS), $(SRCDIR)/$(DIR)/make.code.defn)
+	@echo Creating or updating $(NAME)
 	$(AR) $(ARFLAGS) $@ $(OBJS)
 #	$(RANLIB) $@
 
@@ -33,3 +51,17 @@ include $(CONFIG)/make.config.rules
 
 # Extra thorn-specific dependencies
 include $(SRCDIR)/make.code.deps
+
+# Extra stuff for allowing make to recurse into directories
+
+# This one makes the object files in the subdirectory
+.PHONY: $(addsuffix .check, $(SUBDIRS))
+
+$(addsuffix .check, $(SUBDIRS)) :
+	if [ ! -d $(basename $@) ] ; then $(MKDIR) $(basename $@) ; fi
+	cd $(basename $@) ; $(MAKE) TOP=$(TOP) CONFIG=$(CONFIG) SRCDIR=$(SRCDIR)/$(basename $@) -f $(MAKE_DIR)/make.subdir
+
+# This one puts a file containing identity info into the build subdirectory
+$(addsuffix /make.identity, $(SUBDIRS)):
+	if [ ! -d $(dir $@) ] ; then mkdir $(dir $@) ; fi
+	echo CCTK_THIS_SUBDIR := $(dir $@) > $@