MJIT specific flags

Passing options to configure like as `configure MJIT_OPTFLAGS=-O
MJIT_DEBUGFLAGS=-g` overrides options to be used to compile JIT
code, separately from the default options to be used for ruby
itself.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62623 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Makefile.in

@@ -75,6 +75,9 @@ MJIT_HEADER_FLAGS = @MJIT_HEADER_FLAGS@
 MJIT_HEADER_SUFFIX =
 MJIT_HEADER_ARCH =
 MJIT_HEADER_INSTALL_DIR = @MJIT_HEADER_INSTALL_DIR@
+MJIT_CC = @MJIT_CC@
+MJIT_OPTFLAGS = @MJIT_OPTFLAGS@
+MJIT_DEBUGFLAGS = @MJIT_DEBUGFLAGS@
 LDFLAGS = @STATIC@ $(CFLAGS) @LDFLAGS@
 EXTLDFLAGS = @EXTLDFLAGS@
 XLDFLAGS = @XLDFLAGS@ $(EXTLDFLAGS)
@@ -556,10 +559,10 @@ mjit_config.h:
 	sep=; \
 	quote MJIT_HEADER_INSTALL_DIR "$(MJIT_HEADER_INSTALL_DIR)"; \
 	sep=,; \
-	quote "MJIT_CC_COMMON  " $(CC); \
+	quote "MJIT_CC_COMMON  " $(MJIT_CC); \
 	quote "MJIT_CFLAGS     " -w $(ARCH_FLAG); \
-	quote "MJIT_OPTFLAGS   " $(optflags); \
-	quote "MJIT_DEBUGFLAGS " $(debugflags); \
+	quote "MJIT_OPTFLAGS   " $(MJIT_OPTFLAGS); \
+	quote "MJIT_DEBUGFLAGS " $(MJIT_DEBUGFLAGS); \
 	quote "MJIT_LDSHARED   " @LDSHARED@; \
 	quote "MJIT_DLDFLAGS   " @DLDFLAGS@; \
 	quote "MJIT_LIBS       " $(LIBRUBYARG_SHARED); \

configure.ac

@@ -2459,6 +2459,9 @@ AC_SUBST(DLDFLAGS)dnl
 AC_SUBST(ARCH_FLAG)dnl
 AC_SUBST(MJIT_HEADER_FLAGS)dnl
 AC_SUBST(MJIT_HEADER_INSTALL_DIR)dnl
+AC_SUBST(MJIT_CC, [${MJIT_CC-'$(CC)'}])dnl
+AC_SUBST(MJIT_OPTFLAGS, [${MJIT_OPTFLAGS-'$(optflags)'}])dnl
+AC_SUBST(MJIT_DEBUGFLAGS, [${MJIT_DEBUGFLAGS-'$(debugflags)'}])dnl
 
 AC_SUBST(STATIC)dnl
 AC_SUBST(CCDLFLAGS)dnl

win32/Makefile.sub

@@ -301,6 +301,15 @@ MJIT_HEADER_FLAGS = -P
 MJIT_HEADER_SUFFIX =
 MJIT_HEADER_ARCH =
 MJIT_HEADER_INSTALL_DIR = include/$(RUBY_VERSION_NAME)/$(arch)
+!ifndef MJIT_CC
+MJIT_CC = $(CC)
+!endif
+!ifndef MJIT_OPTFLAGS
+MJIT_OPTFLAGS = $(OPTFLAGS)
+!endif
+!ifndef MJIT_DEBUGFLAGS
+MJIT_DEBUGFLAGS = $(DEBUGFLAGS)
+!endif
 
 DLDFLAGS = $(LDFLAGS) -dll
 SOLIBS =
@@ -1262,7 +1271,7 @@ mjit_config.h:
 <<KEEP
 	@
 	@(set sep=#define MJIT_CC_COMMON ) & \
-	for %I in ($(CC)) do @(call echo.%%sep%%"%%~I", \& set sep= ) >> $@
+	for %I in ($(MJIT_CC)) do @(call echo.%%sep%%"%%~I", \& set sep= ) >> $@
 	@echo /* MJIT_CC_COMMON */>> $@
 	@
 	@(set sep=#define MJIT_CFLAGS ) & \
@@ -1270,11 +1279,11 @@ mjit_config.h:
 	@echo /* MJIT_CFLAGS */>> $@
 	@
 	@(set sep=#define MJIT_OPTFLAGS ) & \
-	for %I in ($(OPTFLAGS)) do @(call echo.%%sep%%"%%~I", \& set sep= ) >> $@
+	for %I in ($(MJIT_OPTFLAGS)) do @(call echo.%%sep%%"%%~I", \& set sep= ) >> $@
 	@echo /* MJIT_OPTFLAGS */>> $@
 	@
 	@(set sep=#define MJIT_DEBUGFLAGS ) & \
-	for %I in ($(DEBUGFLAGS)) do @(call echo.%%sep%%"%%~I", \& set sep= ) >> $@
+	for %I in ($(MJIT_DEBUGFLAGS)) do @(call echo.%%sep%%"%%~I", \& set sep= ) >> $@
 	@echo /* MJIT_DEBUGFLAGS */>> $@
 	@
 	@(set sep=#define MJIT_LDSHARED ) & \