# See COLOR_CMD comment for details.
COLOR_ARG ?=
+# ANSI color used for the warnings if $(COLOR) is non-empty
+# See COLOR_CMD comment for details.
+COLOR_WARN ?= 00;36
+
# Flavor (variant), should be one of "dbg", "opt" or "cov"
F ?= opt
# Paper size for Sphinx LaTeX output (a4, letter, etc.)
SPHINX_PAPERSIZE ?= a4
+# Name of the build directory (to use when excluding some paths)
+BUILD_DIR_NAME ?= build
+
+# Directories to exclude from the build directory tree replication
+BUILD_DIR_EXCLUDE ?= $(BUILD_DIR_NAME) .git .hg .bzr _darcs .svn CVS
+
# Directories
##############
R := $(subst $T,,$(patsubst $T/%,%,$(CURDIR)))
# Base directory where to put variants (Variants Directory)
-VD ?= $T/build
+VD ?= $T/$(BUILD_DIR_NAME)
# Generated files top directory
G ?= $(VD)/$F
# Same as vexec but it silence the echo command (prepending a @ if $V).
exec = $V$(call vexec,$1,$2,$3)
-# Compile a source file to an object, generating pre-compiled headers and
-# dependencies. The pre-compiled headers are generated only if the system
-# includes change. This function is designed to be used as a command in a rule.
-# It takes one argument only, the type of file to compile (typically "c" or
-# "cpp"). What to compile and the output files are built using the automatic
-# variables from a rule. You can add non-propagated object-specific flags
-# defining a variable with the name of the target followed with ".EXTRA_FLAGS".
+# Compile a source file to an object, generating pre-compiled headers (if
+# $(GCH) is non-empty) and dependencies. The pre-compiled headers are generated
+# only if the system includes change. This function is designed to be used as
+# a command in a rule. The first argument is the type of file to compile
+# (typically "c" or "cpp"). What to compile and the output files are built
+# using the automatic variables from a rule. The second argument is the base
+# output directory (typically $O). You can add non-propagated object-specific
+# flags defining a variable with the name of the target followed with
+# ".EXTRA_FLAGS".
+#
+# XXX: The pre-compiled headers generation is not very useful if you include
+# local files using #include <...>, because the system headers detection
+# is a little simplistic now, it just parse the source file and all its
+# dependencies searching for lines starting with "#include <" and
+# extracting the included files from them.
define compile
$(if $(GCH),\
-$Vif test -f $O/$*.d; then \
+$Vif test -f $2/$*.d; then \
tmp=`mktemp`; \
- h=`awk -F: '!$$0 {f = 1} $$0 && f {print $$1}' $O/$*.d`; \
+ h=`awk -F: '!$$0 {f = 1} $$0 && f {print $$1}' $2/$*.d`; \
grep -h '^#include <' $< $$h | sort -u > "$$tmp"; \
- if diff -q -w "$O/$*.$1.h" "$$tmp" > /dev/null 2>&1; \
+ if diff -q -w "$2/$*.$1.h" "$$tmp" > /dev/null 2>&1; \
then \
rm "$$tmp"; \
else \
- mv "$$tmp" "$O/$*.$1.h"; \
+ mv "$$tmp" "$2/$*.$1.h"; \
$(call vexec,$(COMPILE.$1) $($@.EXTRA_FLAGS) \
- -o "$O/$*.$1.h.gch" "$O/$*.$1.h",$O/$*.$1.h.gch); \
+ -o "$2/$*.$1.h.gch" "$2/$*.$1.h",$2/$*.$1.h.gch); \
fi \
else \
- touch "$O/$*.$1.h"; \
+ touch "$2/$*.$1.h"; \
fi \
)
$(call exec,$(COMPILE.$1) $($@.EXTRA_FLAGS) -o $@ -MMD -MP \
- $(if $(GCH),-include $O/$*.$1.h) $<)
+ $(if $(GCH),-include $2/$*.$1.h) $<)
endef
# Link object files to build an executable. The objects files are taken from
# have changed (optional). This should be used as a rule action or something
# where a shell script is expected.
gen_rebuild_flags = $(shell if test x"$2" != x"`cat $1 2>/dev/null`"; then \
- $(if $3,test -f $1 && echo "$3";) \
+ $(if $3,test -f $1 && echo "$(if $(COLOR),$(if $(COLOR_WARN),\
+ \033[$(COLOR_WARN)m$3\033[00m,$3),$3);";) \
echo "$2" > $1 ; fi)
# Include sub-directory's Build.mak. The only argument is a list of
# Compile C objects
$O/%.o: $T/%.c $G/compile-c-flags
- $(call compile,c)
+ $(call compile,c,$O)
# Compile C++ objects
$O/%.o: $T/%.cpp $G/compile-cpp-flags
- $(call compile,cpp)
+ $(call compile,cpp,$O)
# Link binary programs
$B/%: $G/link-o-flags
$(call replace,$(PC_VARS),$*-PC-)
# Run doxygen to build the documentation. It expects the first prerequisite to
-# be the Doxyfile to use and the next prerequisites the input files. This rule
-# is a little restrictive, but you can always make your own if it doesn't fit
-# your needs ;)
+# be the Doxyfile to use and the next prerequisites the input files. You
+# can override Doxyfile configuration variables by defining a DOXYGEN_VARS
+# Make variable for this rule. For example, defining:
+# PROJECT_NAME := myproj
+# DOXYGEN_VARS := PROJECT_NAME
+# You can override Doxygen's PROJECT_NAME configuration option. Optionally, you
+# can define DOXYGEN_VARS_PREFIX too, to avoid polluting your Makefile with
+# Doxygen variables. For example:
+# DOXY.PROJECT_NAME := myproj
+# DOXYGEN_VARS_PREFIX := DOXY.
+# DOXYGEN_VARS := PROJECT_NAME
+# This rule might be still a little restrictive, but you can always make your
+# own if it doesn't fit your needs ;)
$D/%/doxygen-stamp:
$V mkdir -p $(@D)
$(call exec,(cat $<; \
echo "FULL_PATH_NAMES=YES"; \
- echo "INPUT=$(patsubst $(<D)/%,$(INCLUDE_DIR)/$*/%, \
- $(wordlist 2,$(words $^),$^))"; \
+ $(if $(filter INPUT,$(DOXYGEN_VARS)),,\
+ echo "INPUT=$(patsubst $(<D)/%,$(INCLUDE_DIR)/$*/%, \
+ $(wordlist 2,$(words $^),$^))";) \
echo "OUTPUT_DIRECTORY=$(@D)"; \
- echo "INCLUDE_PATH=$(INCLUDE_DIR)"; \
echo "STRIP_FROM_PATH=$(INCLUDE_DIR)"; \
echo "STRIP_FROM_INC_PATH=$(INCLUDE_DIR)"; \
- echo "QUIET=$(if $V,YES,NO)") | doxygen -,$(@D),doxygen)
+ echo "QUIET=$(if $V,YES,NO)"; \
+ $(foreach v,$(DOXYGEN_VARS),\
+ echo '$v=$($(DOXYGEN_VARS_PREFIX)$v)';) \
+ ) | doxygen -,$(@D),doxygen)
$V touch $@
# Run Sphinx to build the documentation. It expects the variable SPHINX_DIR
# subdirectories, that's why the current directory "." is included, so it
# won't show an error message in case of no subdirectories.
setup_build_dir__ := $(shell \
- mkdir -p $O $B $L $D $(INCLUDE_DIR); \
- mkdir -p . $(addprefix $O,$(patsubst $T%,%,\
- $(shell find $T -type d -not -path '$(VD)*'))); \
+ mkdir -p $O $B $L $D $(INCLUDE_DIR) $(addprefix $O,$(patsubst $T%,%,\
+ $(shell find $T -type d $(foreach d,$(BUILD_DIR_EXCLUDE), \
+ -not -path '*/$d' -not -path '*/$d/*')))); \
test -L $(VD)/last || ln -s $F $(VD)/last )
# Create files containing the current flags to trigger a rebuild if they change
setup_flag_files__ := $(call gen_rebuild_flags,$G/compile-c-flags, \
- $(COMPILE.c.FLAGS),C compiler or flags; )
+ $(COMPILE.c.FLAGS),C compiler)
setup_flag_files__ := $(setup_flag_files__)$(call gen_rebuild_flags, \
- $G/compile-cpp-flags, $(COMPILE.cpp.FLAGS),C++ compiler or flags; )
+ $G/compile-cpp-flags, $(COMPILE.cpp.FLAGS),C++ compiler)
setup_flag_files__ := $(setup_flag_files__)$(call gen_rebuild_flags, \
- $G/link-o-flags, $(LINK.o.FLAGS),linker or link flags; )
+ $G/link-o-flags, $(LINK.o.FLAGS),linker)
setup_flag_files__ := $(setup_flag_files__)$(call gen_rebuild_flags, \
- $G/sphinx-flags, $(SPHINX.FLAGS),sphinx command or flags; )
+ $G/sphinx-flags, $(SPHINX.FLAGS),sphinx)
# Print any generated message (if verbose)
$(if $V,$(if $(setup_flag_files__), \
- $(info !! Something changed: $(setup_flag_files__)re-building \
+ $(info !! Flags or commands changed:$(setup_flag_files__) re-building \
affected files...)))
endif