configure: Remove obsolete --enable-darwin-* options

Remove the options:

  --enable-darwin-universal
  --enable-darwin-64bit

The --enable-darwin-universal option turns on universal binaries
(Intel/PPC). It does not work on modern releases of OS X, and
OTP 19 will most not likely build on an OS X release that still
supports universal builds.

The --enable-darwin-64bit option is not needed, because 64-bit builds
are default on modern OS X releases. There is also the generic
--enable-m64-build option.

3 files changed, 10 insertions, 154 deletions

diff --git a/HOWTO/INSTALL.md b/HOWTO/INSTALL.md
index 43bcdb3a9e..adfc44baae 100644
--- a/HOWTO/INSTALL.md
+++ b/HOWTO/INSTALL.md
@@ -356,8 +356,6 @@ Some of the available `configure` options are:
     depending on operating system and hardware platform. Note that by
     enabling this you might get a seemingly working system that sometimes
     fail on floating point operations.
-*   `--enable-darwin-universal` - Build universal binaries on darwin i386.
-*   `--enable-darwin-64bit` - Build 64-bit binaries on darwin
 *   `--enable-m64-build` - Build 64-bit binaries using the `-m64` flag to
     `(g)cc`
 *   `--enable-m32-build` - Build 32-bit binaries using the `-m32` flag to
diff --git a/configure.in b/configure.in
index 89486590b8..fc9aeee455 100644
--- a/configure.in
+++ b/configure.in
@@ -297,24 +297,6 @@ dnl     *)  erl_mandir='$(erlang_libdir)/man' ;;
 dnl   esac ], erl_mandir='$(erlang_libdir)/man')
 dnl AC_SUBST(erl_mandir)
 
-AC_ARG_ENABLE(darwin-universal,
-AS_HELP_STRING([--enable-darwin-universal],
-               [build universal binaries on darwin i386]),
-[ case "$enableval" in
-    no) enable_darwin_universal=no ;;
-    *)  enable_darwin_univeral=yes ;;
-  esac
-],enable_darwin_universal=no)
-
-
-AC_ARG_ENABLE(darwin-64bit,
-AS_HELP_STRING([--enable-darwin-64bit], [build 64bit binaries on darwin]),
-[ case "$enableval" in
-    no) enable_darwin_64bit=no ;;
-    *)  enable_darwin_64bit=yes ;;
-  esac
-],enable_darwin_64bit=no)
-
 AC_ARG_ENABLE(m64-build,
 AS_HELP_STRING([--enable-m64-build],
                [build 64bit binaries using the -m64 flag to (g)cc]),
@@ -329,12 +311,7 @@ AS_HELP_STRING([--enable-m32-build],
                [build 32bit binaries using the -m32 flag to (g)cc]),
 [ case "$enableval" in
     no) enable_m32_build=no ;;
-    *)
-	if test X${enable_darwin_64bit} = Xyes -o  X${enable_m64_build} = Xyes;
-	then
-		AC_MSG_ERROR([(--enable-darwin-64bit or --enable-m64-build) and --enable-m32-build are mutually exclusive]) ;
-	fi ;
-	enable_m32_build=yes ;;
+    *)	enable_m32_build=yes ;;
   esac
 ],enable_m32_build=no)
 
@@ -342,42 +319,6 @@ AC_ARG_WITH(libatomic_ops,
 	    AS_HELP_STRING([--with-libatomic_ops=PATH],
 			   [specify and prefer usage of libatomic_ops in the ethread library]))
 
-dnl OK, we might have darwin switches off different kinds, lets 
-dnl check it all before continuing.
-TMPSYS=`uname -s`-`uname -m`
-if test X${enable_darwin_universal} = Xyes; then
-	if test X${enable_darwin_64bit} = Xyes; then
-		AC_MSG_ERROR([--enable-darwin-universal and --enable-darwin-64bit mutually exclusive])
-	fi
-	enable_hipe=no
-	CFLAGS="-arch i386 -arch ppc $CFLAGS"
-	export CFLAGS
-	LDFLAGS="-arch i386 -arch ppc $LDFLAGS"
-	export LDFLAGS
-fi
-if test X${enable_darwin_64bit} = Xyes; then
-	case "$TMPSYS" in
-	    Darwin-i386|Darwin-x86_64)
-		;;
-	    Darwin*)
-		AC_MSG_ERROR([--enable-darwin-64bit only supported on x86 hosts])
-		;;
-	    *)
-		AC_MSG_ERROR([--enable-darwin-64bit only supported on Darwin])
-		;;
-	esac
-	enable_hipe=no
-	CFLAGS="-m64 $CFLAGS"
-	export CFLAGS
-	LDFLAGS="-m64 $LDFLAGS"
-	export LDFLAGS
-elif test X"$TMPSYS" '=' X"Darwin-i386"; then
-	CFLAGS="-m32 $CFLAGS"
-	export CFLAGS
-	LDFLAGS="-m32 $LDFLAGS"
-	export LDFLAGS
-fi
-
 m4_define(DEFAULT_SANITIZERS, [address,undefined])
 AC_ARG_ENABLE(sanitizers,
     AS_HELP_STRING(
diff --git a/erts/configure.in b/erts/configure.in
index cae3843465..dae886b855 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -215,24 +215,6 @@ AS_HELP_STRING([--enable-fp-exceptions],
   esac
 ],enable_fp_exceptions=auto)
 
-AC_ARG_ENABLE(darwin-universal,
-AS_HELP_STRING([--enable-darwin-universal],
-               [build universal binaries on darwin i386]),
-[ case "$enableval" in
-    no) enable_darwin_universal=no ;;
-    *)  enable_darwin_univeral=yes ;;
-  esac
-],enable_darwin_universal=no)
-
-
-AC_ARG_ENABLE(darwin-64bit,
-AS_HELP_STRING([--enable-darwin-64bit], [build 64bit binaries on darwin]),
-[ case "$enableval" in
-    no) enable_darwin_64bit=no ;;
-    *)  enable_darwin_64bit=yes ;;
-  esac
-],enable_darwin_64bit=no)
-
 AC_ARG_ENABLE(m64-build,
 AS_HELP_STRING([--enable-m64-build],
                [build 64bit binaries using the -m64 flag to (g)cc]),
@@ -247,12 +229,7 @@ AS_HELP_STRING([--enable-m32-build],
                [build 32bit binaries using the -m32 flag to (g)cc]),
 [ case "$enableval" in
     no) enable_m32_build=no ;;
-    *)
-	if test X${enable_darwin_64bit} = Xyes -o  X${enable_m64_build} = Xyes;
-	then
-		AC_MSG_ERROR([(--enable-darwin-64bit or --enable-m64-build) and --enable-m32-build are mutually exclusive]) ;
-	fi ;
-	enable_m32_build=yes ;;
+    *)	enable_m32_build=yes ;;
   esac
 ],enable_m32_build=no)
 
@@ -377,42 +354,7 @@ AC_MSG_CHECKING([OTP version])
 AC_MSG_RESULT([$OTP_VERSION])
 AC_SUBST(OTP_VERSION)
 
-dnl OK, we might have darwin switches off different kinds, lets 
-dnl check it all before continuing.
-TMPSYS=`uname -s`-`uname -m`
-if test X${enable_darwin_universal} = Xyes; then
-	if test X${enable_darwin_64bit} = Xyes; then
-		AC_MSG_ERROR([--enable-darwin-universal and --enable-darwin-64bit mutually exclusive])
-	fi
-	enable_hipe=no
-	case $CFLAGS in
-		*-arch\ ppc*)
-			;;
-		*)
-			CFLAGS="-arch ppc $CFLAGS"
-			;;
-	esac
-	case $CFLAGS in
-		*-arch\ i386*)
-			;;
-		*)
-			CFLAGS="-arch i386 $CFLAGS"
-			;;
-	esac
-fi
-if test X${enable_darwin_64bit} = Xyes; then
-	case "$TMPSYS" in
-	    Darwin-i386|Darwin-x86_64)
-		;;
-	    Darwin*)
-		AC_MSG_ERROR([--enable-darwin-64bit only supported on x86 hosts])
-		;;
-	    *)
-		AC_MSG_ERROR([--enable-darwin-64bit only supported on Darwin])
-		;;
-	esac
-fi
-if test X${enable_darwin_64bit} = Xyes -o X${enable_m64_build} = Xyes; then
+if test X${enable_m64_build} = Xyes; then
 	case $CFLAGS in
 		*-m64*)
 			;;
@@ -735,32 +677,13 @@ case $ARCH-$OPSYS in
 		esac
 		;;
 	*-darwin*)
-		if test X${enable_darwin_universal} = Xyes; then
-			AC_MSG_NOTICE([Adjusting LDFLAGS for universal binaries])
-			
-			case $LDFLAGS in
-				*-arch\ ppc*)
-					;;
-				*)
-					LDFLAGS="-arch ppc $LDFLAGS"
-					;;
-			esac
-			case $LDFLAGS in
-				*-arch\ i386*)
-					;;
-				*)
-					LDFLAGS="-arch i386 $LDFLAGS"
-					;;
-			esac
-		else
-			case $LDFLAGS in
-				*-m32*)
-					;;
-				*)
-					LDFLAGS="-m32 $LDFLAGS"
-					;;
-			esac
-		fi
+		case $LDFLAGS in
+			*-m32*)
+				;;
+			*)
+				LDFLAGS="-m32 $LDFLAGS"
+				;;
+		esac
 		;;
 	*)
 		if test X${enable_m64_build} = Xyes; then
@@ -3747,14 +3670,8 @@ case $host_os in
 				DED_LDFLAGS="-m64 $DED_LDFLAGS"
 				;;
 			*)
-				if test X${enable_darwin_universal} != Xyes; then
-					DED_LDFLAGS="-m32 $DED_LDFLAGS"
-				fi
 				;;
 		esac
-		if test X${enable_darwin_universal} = Xyes; then
-		   	DED_LDFLAGS="-arch ppc -arch i386 $DED_LDFLAGS"
-		fi	
 		DED_LD="$CC"
 		DED_LD_FLAG_RUNTIME_LIBRARY_PATH="$CFLAG_RUNTIME_LIBRARY_PATH"
 	;;