Makefile.in: ARCH_FLAG may contain "-m64" etc.

* Makefile.in (mjit_config.h): ARCH_FLAG may contain "-m64", "-m32",
  "-march=i486" and so on, but the change made with r63232 only
  supports "-arch AAA -arch BBB" mainly used on Mac OS X.
  To solve the issue, ARCH_FLAG is parsed and the architectures
  specified in "-arch XXX" are added to $archs and the rest is
  stored to $arch_flag. The $arch_flag is defined as MJIT_ARCHFLAG
  if $archs is empty or the target architecture is not listed in $arch.
  Fix build failure on Solaris 10 with ./configure CFLAGS="-m64".
  [Bug #14876] [ruby-dev:50583]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63828 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Makefile.in

@@ -560,9 +560,26 @@ mjit_config.h:
 	    $${1+printf} $${1+' "%s"'$$sep} $${1+"$$@"}; \
 	    echo; \
 	}; \
-	archs="$(UNIVERSAL_ARCHNAMES)"; \
-	archs="$${archs:-$(ARCH_FLAG:-arch=)}"; \
+	parse_arch_flag() { \
+	    while [ "$$#" -gt 0 ]; do \
+	        case "$$1" in \
+	        -arch) \
+	            shift; \
+	            archs="$${archs:+$$archs }$$1"; \
+	            shift; \
+	            ;; \
+	        *) \
+	            arch_flag="$${arch_flag:+$${arch_flag} }$$1"; \
+	            shift; \
+	            ;; \
+	        esac; \
+	    done; \
+	}; \
 	test "$(Q)" = @ || set -x; \
+	archs="$(UNIVERSAL_ARCHNAMES)"; \
+	arch_flag=""; \
+	parse_arch_flag $(ARCH_FLAG); \
+	need_mjit_archflag="$${archs}$${arch_flag}"; \
 	echo '#ifndef RUBY_MJIT_CONFIG_H'; \
 	echo '#define RUBY_MJIT_CONFIG_H 1'; \
 	echo; \
@@ -570,17 +587,21 @@ mjit_config.h:
 	quote MJIT_MIN_HEADER_NAME "/$(MJIT_HEADER_INSTALL_DIR)/$(MJIT_MIN_HEADER_NAME)"; \
 	sep=,; \
 	quote "MJIT_CC_COMMON  " $(MJIT_CC); \
-	quote "MJIT_CFLAGS     $${archs:+ MJIT_ARCHFLAG}" -w; \
+	quote "MJIT_CFLAGS     $${need_mjit_archflag:+ MJIT_ARCHFLAG}" -w; \
 	quote "MJIT_OPTFLAGS   " $(MJIT_OPTFLAGS); \
 	quote "MJIT_DEBUGFLAGS " $(MJIT_DEBUGFLAGS); \
 	quote "MJIT_LDSHARED   " $(MJIT_LDSHARED); \
-	quote "MJIT_DLDFLAGS   $${archs:+ MJIT_ARCHFLAG}" $(MJIT_DLDFLAGS); \
+	quote "MJIT_DLDFLAGS   $${need_mjit_archflag:+ MJIT_ARCHFLAG}" $(MJIT_DLDFLAGS); \
 	quote "MJIT_LIBS       " $(LIBRUBYARG_SHARED); \
 	$${archs:+echo} $${archs:+'#if 0'}; \
 	for arch in $$archs; do \
 	    echo "#elif defined __$${arch%=*}__"; \
 	    quote "  MJIT_ARCHFLAG " -arch $${arch%=*}; \
 	done; \
+	$${archs:+echo} $${archs:+'#else'}; \
+	if [ "$${arch_flag}" != "" ]; then \
+	    quote "  MJIT_ARCHFLAG " $${arch_flag}; \
+	fi; \
 	$${archs:+echo} $${archs:+'#endif'}; \
 	echo; \
 	echo '#endif /* RUBY_MJIT_CONFIG_H */'; \