- Added jc.mk

1 files changed, 108 insertions, 0 deletions

diff --git a/support/make/jc.mk b/support/make/jc.mk
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+############################################################-*-Makefile-*-####
+# JC - Compile Java Files
+##############################################################################
+# $Id$
+
+##############################################################################
+# Usage
+#
+#   make jc [target=<target>] [<VARIABLE>=<value>]
+#
+##############################################################################
+# Variables
+#
+# JC_COMPILER		 = compiler name, for example JAVAC
+# $(JC_COMPILER)	 = compiler command
+# $(JC_COMPILER)_FLAGS	 = compiler-specific compilation flags
+# JC_FLAGS		+= compilation flags
+# JC_CLASSPATH		 = location of user class files
+# JC_SOURCEPATH		 = location of input source files
+# JC_BOOTCLASSPATH	 = location of bootstrap class files
+# JC_EXTDIRS		 = location of installed extensions
+# JC_OUTPUTDIR		 = directory where to place generated class files
+# JC_ENCODING		 = character encoding used by source files
+# JC_SOURCE		 = version of source code
+# JC_TARGET		 = version of target bytecode
+# JC_FILES		+= files to compile
+#
+# All variables may have target specific values which override the
+# normal value. Those values are specified by variables whose name is
+# prefixed with the target name. For example, to override the value of
+# the variable JC_CLASSPATH with target COMPILER, one may define the
+# variable COMPILER_JC_CLASSPATH
+#
+##############################################################################
+# Examples
+#
+# Compile file "sources/scalac/Main.java"
+#
+#   make jc JC_FILES=sources/scalac/Main.java
+#
+#
+# Compile the whole runtime
+#
+#   make jc target=RUNTIME
+#
+#
+# A Makefile rule that compiles all modified files from the runtime
+#
+#   .latest-runtime		: $(RUNTIME_JC_FILES)
+#           @$(MAKE) jc target=RUNTIME RUNTIME_JC_FILES='$?'
+#           touch $@
+#
+##############################################################################
+
+##############################################################################
+# Defaults
+
+JC_COMPILER		?= JAVAC
+JAVAC			?= javac
+
+##############################################################################
+# Values
+
+jc_COMPILER		 = $(call JC_LOOKUP,JC_COMPILER)
+jc_compiler		 = $(call JC_LOOKUP,$(jc_COMPILER))
+jc_compiler_flags	 = $(call JC_LOOKUP,$(jc_COMPILER)_FLAGS)
+jc_FLAGS		 = $(call JC_LOOKUP,JC_FLAGS)
+jc_CLASSPATH		 = $(call JC_LOOKUP,JC_CLASSPATH)
+jc_SOURCEPATH		 = $(call JC_LOOKUP,JC_SOURCEPATH)
+jc_BOOTCLASSPATH	 = $(call JC_LOOKUP,JC_BOOTCLASSPATH)
+jc_EXTDIRS		 = $(call JC_LOOKUP,JC_EXTDIRS)
+jc_OUTPUTDIR		 = $(call JC_LOOKUP,JC_OUTPUTDIR)
+jc_ENCODING		 = $(call JC_LOOKUP,JC_ENCODING)
+jc_SOURCE		 = $(call JC_LOOKUP,JC_SOURCE)
+jc_TARGET		 = $(call JC_LOOKUP,JC_TARGET)
+jc_FILES		 = $(call JC_LOOKUP,JC_FILES)
+
+##############################################################################
+# Command
+
+jc			+= $(jc_compiler)
+jc			+= $(jc_compiler_flags)
+jc			+= $(jc_FLAGS)
+jc			+= $(jc_CLASSPATH:%=-classpath %)
+jc			+= $(jc_SOURCEPATH:%=-sourcepath %)
+jc			+= $(jc_BOOTCLASSPATH:%=-bootclasspath %)
+jc			+= $(jc_EXTDIRS:%=-extdirs %)
+jc			+= $(jc_OUTPUTDIR:%=-d %)
+jc			+= $(jc_ENCODING:%=-encoding %)
+jc			+= $(jc_SOURCE:%=-source %)
+jc			+= $(jc_TARGET:%=-target %)
+jc			+= $(jc_FILES)
+
+##############################################################################
+# Functions
+
+JC_LOOKUP		 = $(if $($(target)_$(1)),$($(target)_$(1)),$($(1)))
+
+##############################################################################
+# Rules
+
+jc		:
+	@[ -d "$(jc_OUTPUTDIR)" ] || $(MKDIR) -p "$(jc_OUTPUTDIR)"
+	$(strip $(jc))
+
+.PHONY		: jc
+
+##############################################################################