Rebased to trunk since TIP #449 was accepted for merging to trunk only, not to core-8-6-branchtip_449

11 files changed, 117 insertions, 90 deletions

diff --git a/macosx/GNUmakefile b/macosx/GNUmakefile
index d0bab1a..57d0206 100644
--- a/macosx/GNUmakefile
+++ b/macosx/GNUmakefile
@@ -102,7 +102,7 @@ PROJECT			:= tk
 PRODUCT_NAME		:= Tk
 
 UNIX_DIR		:= ${CURDIR}/../unix
-VERSION			:= $(shell awk -F= '/^TK_VERSION/ {print $$2; nextfile}' ${UNIX_DIR}/configure.in)
+VERSION			:= $(shell awk -F= '/^TK_VERSION/ {print $$2; nextfile}' ${UNIX_DIR}/configure.ac)
 TCL_VERSION		:= ${VERSION}
 wish			:= wish
 WISH			= wish${VERSION}
diff --git a/macosx/Tk-Common.xcconfig b/macosx/Tk-Common.xcconfig
index 0d6e474..d75674a 100644
--- a/macosx/Tk-Common.xcconfig
+++ b/macosx/Tk-Common.xcconfig
@@ -43,4 +43,4 @@ TCL_PACKAGE_PATH = "$(LIBDIR)"
 TCL_DEFS = HAVE_TCL_CONFIG_H
 TK_LIBRARY = $(LIBDIR)/tk$(VERSION)
 TK_DEFS = HAVE_TK_CONFIG_H TCL_NO_DEPRECATED
-VERSION = 8.6
+VERSION = 8.7
diff --git a/macosx/Tk.xcode/project.pbxproj b/macosx/Tk.xcode/project.pbxproj
index 70c2472..eee37a2 100644
--- a/macosx/Tk.xcode/project.pbxproj
+++ b/macosx/Tk.xcode/project.pbxproj
@@ -1172,7 +1172,7 @@
 		F966BC6A08F27A3D005CB29B /* xmfbox.test */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = xmfbox.test; sourceTree = "<group>"; };
 		F966BC6C08F27A3D005CB29B /* aclocal.m4 */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = aclocal.m4; sourceTree = "<group>"; };
 		F966BC6D08F27A3D005CB29B /* configure */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; path = configure; sourceTree = "<group>"; };
-		F966BC6E08F27A3D005CB29B /* configure.in */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.in; sourceTree = "<group>"; };
+		F966BC6E08F27A3D005CB29B /* configure.ac */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.ac; sourceTree = "<group>"; };
 		F966BC6F08F27A3D005CB29B /* install-sh */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; path = "install-sh"; sourceTree = "<group>"; };
 		F966BC7008F27A3D005CB29B /* installManPage */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; path = installManPage; sourceTree = "<group>"; };
 		F966BC7108F27A3D005CB29B /* Makefile.in */ = {isa = PBXFileReference; explicitFileType = sourcecode.make; fileEncoding = 4; path = Makefile.in; sourceTree = "<group>"; };
@@ -1211,7 +1211,7 @@
 		F966BC9408F27A3D005CB29B /* aclocal.m4 */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = aclocal.m4; sourceTree = "<group>"; };
 		F966BC9508F27A3D005CB29B /* buildall.vc.bat */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = buildall.vc.bat; sourceTree = "<group>"; };
 		F966BC9608F27A3E005CB29B /* configure */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; path = configure; sourceTree = "<group>"; };
-		F966BC9708F27A3E005CB29B /* configure.in */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.in; sourceTree = "<group>"; };
+		F966BC9708F27A3E005CB29B /* configure.ac */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.ac; sourceTree = "<group>"; };
 		F966BC9808F27A3E005CB29B /* makefile.bc */ = {isa = PBXFileReference; explicitFileType = sourcecode.make; fileEncoding = 4; path = makefile.bc; sourceTree = "<group>"; };
 		F966BC9908F27A3E005CB29B /* Makefile.in */ = {isa = PBXFileReference; explicitFileType = sourcecode.make; fileEncoding = 4; path = Makefile.in; sourceTree = "<group>"; };
 		F966BC9A08F27A3E005CB29B /* makefile.vc */ = {isa = PBXFileReference; explicitFileType = sourcecode.make; fileEncoding = 4; path = makefile.vc; sourceTree = "<group>"; };
@@ -1916,7 +1916,7 @@
 		F96D43CF08F272B7004A47F5 /* winTime.test */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = winTime.test; sourceTree = "<group>"; };
 		F96D43D108F272B8004A47F5 /* checkLibraryDoc.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = checkLibraryDoc.tcl; sourceTree = "<group>"; };
 		F96D43D208F272B8004A47F5 /* configure */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; path = configure; sourceTree = "<group>"; };
-		F96D43D308F272B8004A47F5 /* configure.in */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.in; sourceTree = "<group>"; };
+		F96D43D308F272B8004A47F5 /* configure.ac */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.ac; sourceTree = "<group>"; };
 		F96D442208F272B8004A47F5 /* eolFix.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = eolFix.tcl; sourceTree = "<group>"; };
 		F96D442408F272B8004A47F5 /* fix_tommath_h.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = fix_tommath_h.tcl; sourceTree = "<group>"; };
 		F96D442508F272B8004A47F5 /* genStubs.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = genStubs.tcl; sourceTree = "<group>"; };
@@ -1941,7 +1941,7 @@
 		F96D443C08F272B9004A47F5 /* uniParse.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = uniParse.tcl; sourceTree = "<group>"; };
 		F96D444008F272B9004A47F5 /* aclocal.m4 */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = aclocal.m4; sourceTree = "<group>"; };
 		F96D444108F272B9004A47F5 /* configure */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; path = configure; sourceTree = "<group>"; };
-		F96D444208F272B9004A47F5 /* configure.in */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.in; sourceTree = "<group>"; };
+		F96D444208F272B9004A47F5 /* configure.ac */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.ac; sourceTree = "<group>"; };
 		F96D444408F272B9004A47F5 /* Makefile.in */ = {isa = PBXFileReference; explicitFileType = sourcecode.make; fileEncoding = 4; path = Makefile.in; sourceTree = "<group>"; };
 		F96D444508F272B9004A47F5 /* pkga.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = pkga.c; sourceTree = "<group>"; };
 		F96D444608F272B9004A47F5 /* pkgb.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = pkgb.c; sourceTree = "<group>"; };
@@ -1986,7 +1986,7 @@
 		F96D447208F272BA004A47F5 /* cat.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = cat.c; sourceTree = "<group>"; };
 		F96D447308F272BA004A47F5 /* coffbase.txt */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = coffbase.txt; sourceTree = "<group>"; };
 		F96D447408F272BA004A47F5 /* configure */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; path = configure; sourceTree = "<group>"; };
-		F96D447508F272BA004A47F5 /* configure.in */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.in; sourceTree = "<group>"; };
+		F96D447508F272BA004A47F5 /* configure.ac */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.ac; sourceTree = "<group>"; };
 		F96D447608F272BA004A47F5 /* makefile.bc */ = {isa = PBXFileReference; explicitFileType = sourcecode.make; fileEncoding = 4; path = makefile.bc; sourceTree = "<group>"; };
 		F96D447708F272BA004A47F5 /* Makefile.in */ = {isa = PBXFileReference; explicitFileType = sourcecode.make; fileEncoding = 4; path = Makefile.in; sourceTree = "<group>"; };
 		F96D447808F272BA004A47F5 /* makefile.vc */ = {isa = PBXFileReference; explicitFileType = sourcecode.make; fileEncoding = 4; path = makefile.vc; sourceTree = "<group>"; };
@@ -2743,7 +2743,7 @@
 			children = (
 				F966BC6C08F27A3D005CB29B /* aclocal.m4 */,
 				F966BC6D08F27A3D005CB29B /* configure */,
-				F966BC6E08F27A3D005CB29B /* configure.in */,
+				F966BC6E08F27A3D005CB29B /* configure.ac */,
 				F966BC6F08F27A3D005CB29B /* install-sh */,
 				F966BC7008F27A3D005CB29B /* installManPage */,
 				F966BC7108F27A3D005CB29B /* Makefile.in */,
@@ -2790,7 +2790,7 @@
 				F966BC9408F27A3D005CB29B /* aclocal.m4 */,
 				F966BC9508F27A3D005CB29B /* buildall.vc.bat */,
 				F966BC9608F27A3E005CB29B /* configure */,
-				F966BC9708F27A3E005CB29B /* configure.in */,
+				F966BC9708F27A3E005CB29B /* configure.ac */,
 				F966BC9808F27A3E005CB29B /* makefile.bc */,
 				F966BC9908F27A3E005CB29B /* Makefile.in */,
 				F966BC9A08F27A3E005CB29B /* makefile.vc */,
@@ -3726,7 +3726,7 @@
 			children = (
 				F96D43D108F272B8004A47F5 /* checkLibraryDoc.tcl */,
 				F96D43D208F272B8004A47F5 /* configure */,
-				F96D43D308F272B8004A47F5 /* configure.in */,
+				F96D43D308F272B8004A47F5 /* configure.ac */,
 				F96D442208F272B8004A47F5 /* eolFix.tcl */,
 				F96D442408F272B8004A47F5 /* fix_tommath_h.tcl */,
 				F96D442508F272B8004A47F5 /* genStubs.tcl */,
@@ -3759,7 +3759,7 @@
 			children = (
 				F96D444008F272B9004A47F5 /* aclocal.m4 */,
 				F96D444108F272B9004A47F5 /* configure */,
-				F96D444208F272B9004A47F5 /* configure.in */,
+				F96D444208F272B9004A47F5 /* configure.ac */,
 				F96D444308F272B9004A47F5 /* dltest */,
 				F96D444D08F272B9004A47F5 /* install-sh */,
 				F96D444E08F272B9004A47F5 /* installManPage */,
@@ -3821,7 +3821,7 @@
 				F96D447208F272BA004A47F5 /* cat.c */,
 				F96D447308F272BA004A47F5 /* coffbase.txt */,
 				F96D447408F272BA004A47F5 /* configure */,
-				F96D447508F272BA004A47F5 /* configure.in */,
+				F96D447508F272BA004A47F5 /* configure.ac */,
 				F96D447608F272BA004A47F5 /* makefile.bc */,
 				F96D447708F272BA004A47F5 /* Makefile.in */,
 				F96D447808F272BA004A47F5 /* makefile.vc */,
@@ -3974,7 +3974,7 @@
 			);
 			inputPaths = (
 				"$(TCL_SRCROOT)/macosx/configure.ac",
-				"$(TCL_SRCROOT)/unix/configure.in",
+				"$(TCL_SRCROOT)/unix/configure.ac",
 				"$(TCL_SRCROOT)/unix/tcl.m4",
 				"$(TCL_SRCROOT)/unix/aclocal.m4",
 				"$(TCL_SRCROOT)/unix/tclConfig.sh.in",
@@ -3987,7 +3987,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/bash;
-			shellScript = "## tcl configure shell script phase\n\ncd \"${TCL_SRCROOT}\"/macosx &&\nif [ configure.ac -nt configure -o ../unix/configure.in -nt configure -o ../unix/tcl.m4 -nt configure -o ../unix/aclocal.m4 -nt configure ]; then\n    echo \"Running autoconf & autoheader in tcl/macosx\"\n    rm -rf autom4te.cache\n    ${AUTOCONF:-${DEVELOPER_DIR}/usr/bin/autoconf} && ${AUTOHEADER:-${DEVELOPER_DIR}/usr/bin/autoheader} || exit $?\n    rm -rf autom4te.cache\nfi\n\ncd \"${DERIVED_FILE_DIR}\" && mkdir -p tcl && cd tcl &&\nif [ \"${TCL_SRCROOT}\"/macosx/configure -nt config.status ]; then\n    echo \"Configuring Tcl\"\n    CC=$(xcrun -find ${GCC} || echo ${GCC})\n    \"${TCL_SRCROOT}\"/macosx/configure --cache-file=../config.cache --prefix=${PREFIX} --bindir=${BINDIR} --libdir=${LIBDIR} --mandir=${MANDIR} --includedir=${INCLUDEDIR} --disable-shared CC=${CC} LD=${CC} ${CONFIGURE_ARGS}\nelse\n    ./config.status\nfi\n";
+			shellScript = "## tcl configure shell script phase\n\ncd \"${TCL_SRCROOT}\"/macosx &&\nif [ configure.ac -nt configure -o ../unix/configure.ac -nt configure -o ../unix/tcl.m4 -nt configure -o ../unix/aclocal.m4 -nt configure ]; then\n    echo \"Running autoconf & autoheader in tcl/macosx\"\n    rm -rf autom4te.cache\n    ${AUTOCONF:-${DEVELOPER_DIR}/usr/bin/autoconf} && ${AUTOHEADER:-${DEVELOPER_DIR}/usr/bin/autoheader} || exit $?\n    rm -rf autom4te.cache\nfi\n\ncd \"${DERIVED_FILE_DIR}\" && mkdir -p tcl && cd tcl &&\nif [ \"${TCL_SRCROOT}\"/macosx/configure -nt config.status ]; then\n    echo \"Configuring Tcl\"\n    CC=$(xcrun -find ${GCC} || echo ${GCC})\n    \"${TCL_SRCROOT}\"/macosx/configure --cache-file=../config.cache --prefix=${PREFIX} --bindir=${BINDIR} --libdir=${LIBDIR} --mandir=${MANDIR} --includedir=${INCLUDEDIR} --disable-shared CC=${CC} LD=${CC} ${CONFIGURE_ARGS}\nelse\n    ./config.status\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 		F9A5C5F608F651AB008AE941 /* Configure Tk */ = {
@@ -3997,7 +3997,7 @@
 			);
 			inputPaths = (
 				"$(TK_SRCROOT)/macosx/configure.ac",
-				"$(TK_SRCROOT)/unix/configure.in",
+				"$(TK_SRCROOT)/unix/configure.ac",
 				"$(TK_SRCROOT)/unix/tcl.m4",
 				"$(TK_SRCROOT)/unix/aclocal.m4",
 				"$(TK_SRCROOT)/unix/tkConfig.sh.in",
@@ -4008,7 +4008,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/bash;
-			shellScript = "## tk configure shell script phase\n\ncd \"${TK_SRCROOT}\"/macosx &&\nif [ configure.ac -nt configure -o ../unix/configure.in -nt configure -o ../unix/tcl.m4 -nt configure -o ../unix/aclocal.m4 -nt configure ]; then\n    echo \"Running autoconf & autoheader in tk/macosx\"\n    rm -rf autom4te.cache\n    ${AUTOCONF:-${DEVELOPER_DIR}/usr/bin/autoconf} && ${AUTOHEADER:-${DEVELOPER_DIR}/usr/bin/autoheader} || exit $?\n    rm -rf autom4te.cache\nfi\n\ncd \"${DERIVED_FILE_DIR}\" && mkdir -p tk && cd tk &&\nif [ \"${TK_SRCROOT}\"/macosx/configure -nt config.status ]; then\n    echo \"Configuring Tk\"\n    CC=$(xcrun -find ${GCC} || echo ${GCC})\n    \"${TK_SRCROOT}\"/macosx/configure --cache-file=../config.cache --prefix=${PREFIX} --bindir=${BINDIR} --libdir=${LIBDIR} --mandir=${MANDIR} --includedir=${INCLUDEDIR} --disable-shared --enable-aqua --with-tcl=../tcl CC=${CC} LD=${CC} ${CONFIGURE_ARGS}\nelse\n    ./config.status\nfi\n";
+			shellScript = "## tk configure shell script phase\n\ncd \"${TK_SRCROOT}\"/macosx &&\nif [ configure.ac -nt configure -o ../unix/configure.ac -nt configure -o ../unix/tcl.m4 -nt configure -o ../unix/aclocal.m4 -nt configure ]; then\n    echo \"Running autoconf & autoheader in tk/macosx\"\n    rm -rf autom4te.cache\n    ${AUTOCONF:-${DEVELOPER_DIR}/usr/bin/autoconf} && ${AUTOHEADER:-${DEVELOPER_DIR}/usr/bin/autoheader} || exit $?\n    rm -rf autom4te.cache\nfi\n\ncd \"${DERIVED_FILE_DIR}\" && mkdir -p tk && cd tk &&\nif [ \"${TK_SRCROOT}\"/macosx/configure -nt config.status ]; then\n    echo \"Configuring Tk\"\n    CC=$(xcrun -find ${GCC} || echo ${GCC})\n    \"${TK_SRCROOT}\"/macosx/configure --cache-file=../config.cache --prefix=${PREFIX} --bindir=${BINDIR} --libdir=${LIBDIR} --mandir=${MANDIR} --includedir=${INCLUDEDIR} --disable-shared --enable-aqua --with-tcl=../tcl CC=${CC} LD=${CC} ${CONFIGURE_ARGS}\nelse\n    ./config.status\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 		F9FD30B40CC1AD070073837D /* Configure Tcl */ = {
@@ -4018,7 +4018,7 @@
 			);
 			inputPaths = (
 				"$(TCL_SRCROOT)/macosx/configure.ac",
-				"$(TCL_SRCROOT)/unix/configure.in",
+				"$(TCL_SRCROOT)/unix/configure.ac",
 				"$(TCL_SRCROOT)/unix/tcl.m4",
 				"$(TCL_SRCROOT)/unix/aclocal.m4",
 				"$(TCL_SRCROOT)/unix/tclConfig.sh.in",
@@ -4031,7 +4031,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/bash;
-			shellScript = "## tcl configure shell script phase\n\ncd \"${TCL_SRCROOT}\"/macosx &&\nif [ configure.ac -nt configure -o ../unix/configure.in -nt configure -o ../unix/tcl.m4 -nt configure -o ../unix/aclocal.m4 -nt configure ]; then\n    echo \"Running autoconf & autoheader in tcl/macosx\"\n    rm -rf autom4te.cache\n    ${AUTOCONF:-${DEVELOPER_DIR}/usr/bin/autoconf} && ${AUTOHEADER:-${DEVELOPER_DIR}/usr/bin/autoheader} || exit $?\n    rm -rf autom4te.cache\nfi\n\ncd \"${DERIVED_FILE_DIR}\" && mkdir -p tcl && cd tcl &&\nif [ \"${TCL_SRCROOT}\"/macosx/configure -nt config.status ]; then\n    echo \"Configuring Tcl\"\n    CC=$(xcrun -find ${GCC} || echo ${GCC})\n    \"${TCL_SRCROOT}\"/macosx/configure --cache-file=../config.cache --prefix=${PREFIX} --bindir=${BINDIR} --libdir=${LIBDIR} --mandir=${MANDIR} --includedir=${INCLUDEDIR} --disable-shared CC=${CC} LD=${CC} ${CONFIGURE_ARGS}\nelse\n    ./config.status\nfi\n";
+			shellScript = "## tcl configure shell script phase\n\ncd \"${TCL_SRCROOT}\"/macosx &&\nif [ configure.ac -nt configure -o ../unix/configure.ac -nt configure -o ../unix/tcl.m4 -nt configure -o ../unix/aclocal.m4 -nt configure ]; then\n    echo \"Running autoconf & autoheader in tcl/macosx\"\n    rm -rf autom4te.cache\n    ${AUTOCONF:-${DEVELOPER_DIR}/usr/bin/autoconf} && ${AUTOHEADER:-${DEVELOPER_DIR}/usr/bin/autoheader} || exit $?\n    rm -rf autom4te.cache\nfi\n\ncd \"${DERIVED_FILE_DIR}\" && mkdir -p tcl && cd tcl &&\nif [ \"${TCL_SRCROOT}\"/macosx/configure -nt config.status ]; then\n    echo \"Configuring Tcl\"\n    CC=$(xcrun -find ${GCC} || echo ${GCC})\n    \"${TCL_SRCROOT}\"/macosx/configure --cache-file=../config.cache --prefix=${PREFIX} --bindir=${BINDIR} --libdir=${LIBDIR} --mandir=${MANDIR} --includedir=${INCLUDEDIR} --disable-shared CC=${CC} LD=${CC} ${CONFIGURE_ARGS}\nelse\n    ./config.status\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 		F9FD30B50CC1AD070073837D /* Configure Tk */ = {
@@ -4041,7 +4041,7 @@
 			);
 			inputPaths = (
 				"$(TK_SRCROOT)/macosx/configure.ac",
-				"$(TK_SRCROOT)/unix/configure.in",
+				"$(TK_SRCROOT)/unix/configure.ac",
 				"$(TK_SRCROOT)/unix/tcl.m4",
 				"$(TK_SRCROOT)/unix/aclocal.m4",
 				"$(TK_SRCROOT)/unix/tkConfig.sh.in",
@@ -4052,7 +4052,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/bash;
-			shellScript = "## tk configure shell script phase\n\ncd \"${TK_SRCROOT}\"/macosx &&\nif [ configure.ac -nt configure -o ../unix/configure.in -nt configure -o ../unix/tcl.m4 -nt configure -o ../unix/aclocal.m4 -nt configure ]; then\n    echo \"Running autoconf & autoheader in tk/macosx\"\n    rm -rf autom4te.cache\n    ${AUTOCONF:-${DEVELOPER_DIR}/usr/bin/autoconf} && ${AUTOHEADER:-${DEVELOPER_DIR}/usr/bin/autoheader} || exit $?\n    rm -rf autom4te.cache\nfi\n\ncd \"${DERIVED_FILE_DIR}\" && mkdir -p tk && cd tk &&\nif [ \"${TK_SRCROOT}\"/macosx/configure -nt config.status ]; then\n    echo \"Configuring Tk\"\n    CC=$(xcrun -find ${GCC} || echo ${GCC})\n    PATH=\"${PATH}:/usr/X11R6/bin\" \"${TK_SRCROOT}\"/macosx/configure --cache-file=../config.cache --prefix=${PREFIX} --bindir=${BINDIR} --libdir=${LIBDIR} --mandir=${MANDIR} --includedir=${INCLUDEDIR} --disable-shared --enable-xft --with-tcl=../tcl CC=${CC} LD=${CC} ${CONFIGURE_ARGS}\nelse\n    ./config.status\nfi";
+			shellScript = "## tk configure shell script phase\n\ncd \"${TK_SRCROOT}\"/macosx &&\nif [ configure.ac -nt configure -o ../unix/configure.ac -nt configure -o ../unix/tcl.m4 -nt configure -o ../unix/aclocal.m4 -nt configure ]; then\n    echo \"Running autoconf & autoheader in tk/macosx\"\n    rm -rf autom4te.cache\n    ${AUTOCONF:-${DEVELOPER_DIR}/usr/bin/autoconf} && ${AUTOHEADER:-${DEVELOPER_DIR}/usr/bin/autoheader} || exit $?\n    rm -rf autom4te.cache\nfi\n\ncd \"${DERIVED_FILE_DIR}\" && mkdir -p tk && cd tk &&\nif [ \"${TK_SRCROOT}\"/macosx/configure -nt config.status ]; then\n    echo \"Configuring Tk\"\n    CC=$(xcrun -find ${GCC} || echo ${GCC})\n    PATH=\"${PATH}:/usr/X11R6/bin\" \"${TK_SRCROOT}\"/macosx/configure --cache-file=../config.cache --prefix=${PREFIX} --bindir=${BINDIR} --libdir=${LIBDIR} --mandir=${MANDIR} --includedir=${INCLUDEDIR} --disable-shared --enable-xft --with-tcl=../tcl CC=${CC} LD=${CC} ${CONFIGURE_ARGS}\nelse\n    ./config.status\nfi";
 			showEnvVarsInLog = 0;
 		};
 /* End PBXShellScriptBuildPhase section */
diff --git a/macosx/Tk.xcodeproj/project.pbxproj b/macosx/Tk.xcodeproj/project.pbxproj
index dcfe9fb..2f7edba 100644
--- a/macosx/Tk.xcodeproj/project.pbxproj
+++ b/macosx/Tk.xcodeproj/project.pbxproj
@@ -1172,7 +1172,7 @@
 		F966BC6A08F27A3D005CB29B /* xmfbox.test */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = xmfbox.test; sourceTree = "<group>"; };
 		F966BC6C08F27A3D005CB29B /* aclocal.m4 */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = aclocal.m4; sourceTree = "<group>"; };
 		F966BC6D08F27A3D005CB29B /* configure */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; path = configure; sourceTree = "<group>"; };
-		F966BC6E08F27A3D005CB29B /* configure.in */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.in; sourceTree = "<group>"; };
+		F966BC6E08F27A3D005CB29B /* configure.ac */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.ac; sourceTree = "<group>"; };
 		F966BC6F08F27A3D005CB29B /* install-sh */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; path = "install-sh"; sourceTree = "<group>"; };
 		F966BC7008F27A3D005CB29B /* installManPage */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; path = installManPage; sourceTree = "<group>"; };
 		F966BC7108F27A3D005CB29B /* Makefile.in */ = {isa = PBXFileReference; explicitFileType = sourcecode.make; fileEncoding = 4; path = Makefile.in; sourceTree = "<group>"; };
@@ -1211,7 +1211,7 @@
 		F966BC9408F27A3D005CB29B /* aclocal.m4 */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = aclocal.m4; sourceTree = "<group>"; };
 		F966BC9508F27A3D005CB29B /* buildall.vc.bat */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = buildall.vc.bat; sourceTree = "<group>"; };
 		F966BC9608F27A3E005CB29B /* configure */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; path = configure; sourceTree = "<group>"; };
-		F966BC9708F27A3E005CB29B /* configure.in */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.in; sourceTree = "<group>"; };
+		F966BC9708F27A3E005CB29B /* configure.ac */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.ac; sourceTree = "<group>"; };
 		F966BC9808F27A3E005CB29B /* makefile.bc */ = {isa = PBXFileReference; explicitFileType = sourcecode.make; fileEncoding = 4; path = makefile.bc; sourceTree = "<group>"; };
 		F966BC9908F27A3E005CB29B /* Makefile.in */ = {isa = PBXFileReference; explicitFileType = sourcecode.make; fileEncoding = 4; path = Makefile.in; sourceTree = "<group>"; };
 		F966BC9A08F27A3E005CB29B /* makefile.vc */ = {isa = PBXFileReference; explicitFileType = sourcecode.make; fileEncoding = 4; path = makefile.vc; sourceTree = "<group>"; };
@@ -1916,7 +1916,7 @@
 		F96D43CF08F272B7004A47F5 /* winTime.test */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = winTime.test; sourceTree = "<group>"; };
 		F96D43D108F272B8004A47F5 /* checkLibraryDoc.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = checkLibraryDoc.tcl; sourceTree = "<group>"; };
 		F96D43D208F272B8004A47F5 /* configure */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; path = configure; sourceTree = "<group>"; };
-		F96D43D308F272B8004A47F5 /* configure.in */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.in; sourceTree = "<group>"; };
+		F96D43D308F272B8004A47F5 /* configure.ac */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.ac; sourceTree = "<group>"; };
 		F96D442208F272B8004A47F5 /* eolFix.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = eolFix.tcl; sourceTree = "<group>"; };
 		F96D442408F272B8004A47F5 /* fix_tommath_h.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = fix_tommath_h.tcl; sourceTree = "<group>"; };
 		F96D442508F272B8004A47F5 /* genStubs.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = genStubs.tcl; sourceTree = "<group>"; };
@@ -1941,7 +1941,7 @@
 		F96D443C08F272B9004A47F5 /* uniParse.tcl */ = {isa = PBXFileReference; explicitFileType = text.script; fileEncoding = 4; path = uniParse.tcl; sourceTree = "<group>"; };
 		F96D444008F272B9004A47F5 /* aclocal.m4 */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = aclocal.m4; sourceTree = "<group>"; };
 		F96D444108F272B9004A47F5 /* configure */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; path = configure; sourceTree = "<group>"; };
-		F96D444208F272B9004A47F5 /* configure.in */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.in; sourceTree = "<group>"; };
+		F96D444208F272B9004A47F5 /* configure.ac */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.ac; sourceTree = "<group>"; };
 		F96D444408F272B9004A47F5 /* Makefile.in */ = {isa = PBXFileReference; explicitFileType = sourcecode.make; fileEncoding = 4; path = Makefile.in; sourceTree = "<group>"; };
 		F96D444508F272B9004A47F5 /* pkga.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = pkga.c; sourceTree = "<group>"; };
 		F96D444608F272B9004A47F5 /* pkgb.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = pkgb.c; sourceTree = "<group>"; };
@@ -1986,7 +1986,7 @@
 		F96D447208F272BA004A47F5 /* cat.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = cat.c; sourceTree = "<group>"; };
 		F96D447308F272BA004A47F5 /* coffbase.txt */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = coffbase.txt; sourceTree = "<group>"; };
 		F96D447408F272BA004A47F5 /* configure */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; path = configure; sourceTree = "<group>"; };
-		F96D447508F272BA004A47F5 /* configure.in */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.in; sourceTree = "<group>"; };
+		F96D447508F272BA004A47F5 /* configure.ac */ = {isa = PBXFileReference; explicitFileType = text.script.sh; fileEncoding = 4; path = configure.ac; sourceTree = "<group>"; };
 		F96D447608F272BA004A47F5 /* makefile.bc */ = {isa = PBXFileReference; explicitFileType = sourcecode.make; fileEncoding = 4; path = makefile.bc; sourceTree = "<group>"; };
 		F96D447708F272BA004A47F5 /* Makefile.in */ = {isa = PBXFileReference; explicitFileType = sourcecode.make; fileEncoding = 4; path = Makefile.in; sourceTree = "<group>"; };
 		F96D447808F272BA004A47F5 /* makefile.vc */ = {isa = PBXFileReference; explicitFileType = sourcecode.make; fileEncoding = 4; path = makefile.vc; sourceTree = "<group>"; };
@@ -2743,7 +2743,7 @@
 			children = (
 				F966BC6C08F27A3D005CB29B /* aclocal.m4 */,
 				F966BC6D08F27A3D005CB29B /* configure */,
-				F966BC6E08F27A3D005CB29B /* configure.in */,
+				F966BC6E08F27A3D005CB29B /* configure.ac */,
 				F966BC6F08F27A3D005CB29B /* install-sh */,
 				F966BC7008F27A3D005CB29B /* installManPage */,
 				F966BC7108F27A3D005CB29B /* Makefile.in */,
@@ -2790,7 +2790,7 @@
 				F966BC9408F27A3D005CB29B /* aclocal.m4 */,
 				F966BC9508F27A3D005CB29B /* buildall.vc.bat */,
 				F966BC9608F27A3E005CB29B /* configure */,
-				F966BC9708F27A3E005CB29B /* configure.in */,
+				F966BC9708F27A3E005CB29B /* configure.ac */,
 				F966BC9808F27A3E005CB29B /* makefile.bc */,
 				F966BC9908F27A3E005CB29B /* Makefile.in */,
 				F966BC9A08F27A3E005CB29B /* makefile.vc */,
@@ -3726,7 +3726,7 @@
 			children = (
 				F96D43D108F272B8004A47F5 /* checkLibraryDoc.tcl */,
 				F96D43D208F272B8004A47F5 /* configure */,
-				F96D43D308F272B8004A47F5 /* configure.in */,
+				F96D43D308F272B8004A47F5 /* configure.ac */,
 				F96D442208F272B8004A47F5 /* eolFix.tcl */,
 				F96D442408F272B8004A47F5 /* fix_tommath_h.tcl */,
 				F96D442508F272B8004A47F5 /* genStubs.tcl */,
@@ -3759,7 +3759,7 @@
 			children = (
 				F96D444008F272B9004A47F5 /* aclocal.m4 */,
 				F96D444108F272B9004A47F5 /* configure */,
-				F96D444208F272B9004A47F5 /* configure.in */,
+				F96D444208F272B9004A47F5 /* configure.ac */,
 				F96D444308F272B9004A47F5 /* dltest */,
 				F96D444D08F272B9004A47F5 /* install-sh */,
 				F96D444E08F272B9004A47F5 /* installManPage */,
@@ -3821,7 +3821,7 @@
 				F96D447208F272BA004A47F5 /* cat.c */,
 				F96D447308F272BA004A47F5 /* coffbase.txt */,
 				F96D447408F272BA004A47F5 /* configure */,
-				F96D447508F272BA004A47F5 /* configure.in */,
+				F96D447508F272BA004A47F5 /* configure.ac */,
 				F96D447608F272BA004A47F5 /* makefile.bc */,
 				F96D447708F272BA004A47F5 /* Makefile.in */,
 				F96D447808F272BA004A47F5 /* makefile.vc */,
@@ -3977,7 +3977,7 @@
 			);
 			inputPaths = (
 				"$(TCL_SRCROOT)/macosx/configure.ac",
-				"$(TCL_SRCROOT)/unix/configure.in",
+				"$(TCL_SRCROOT)/unix/configure.ac",
 				"$(TCL_SRCROOT)/unix/tcl.m4",
 				"$(TCL_SRCROOT)/unix/aclocal.m4",
 				"$(TCL_SRCROOT)/unix/tclConfig.sh.in",
@@ -3990,7 +3990,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/bash;
-			shellScript = "## tcl configure shell script phase\n\ncd \"${TCL_SRCROOT}\"/macosx &&\nif [ configure.ac -nt configure -o ../unix/configure.in -nt configure -o ../unix/tcl.m4 -nt configure -o ../unix/aclocal.m4 -nt configure ]; then\n    echo \"Running autoconf & autoheader in tcl/macosx\"\n    rm -rf autom4te.cache\n    ${AUTOCONF:-${DEVELOPER_DIR}/usr/bin/autoconf} && ${AUTOHEADER:-${DEVELOPER_DIR}/usr/bin/autoheader} || exit $?\n    rm -rf autom4te.cache\nfi\n\ncd \"${DERIVED_FILE_DIR}\" && mkdir -p tcl && cd tcl &&\nif [ \"${TCL_SRCROOT}\"/macosx/configure -nt config.status ]; then\n    echo \"Configuring Tcl\"\n    CC=$(xcrun -find ${GCC} || echo ${GCC})\n    \"${TCL_SRCROOT}\"/macosx/configure --cache-file=../config.cache --prefix=${PREFIX} --bindir=${BINDIR} --libdir=${LIBDIR} --mandir=${MANDIR} --includedir=${INCLUDEDIR} --disable-shared CC=${CC} LD=${CC} ${CONFIGURE_ARGS}\nelse\n    ./config.status\nfi\n";
+			shellScript = "## tcl configure shell script phase\n\ncd \"${TCL_SRCROOT}\"/macosx &&\nif [ configure.ac -nt configure -o ../unix/configure.ac -nt configure -o ../unix/tcl.m4 -nt configure -o ../unix/aclocal.m4 -nt configure ]; then\n    echo \"Running autoconf & autoheader in tcl/macosx\"\n    rm -rf autom4te.cache\n    ${AUTOCONF:-${DEVELOPER_DIR}/usr/bin/autoconf} && ${AUTOHEADER:-${DEVELOPER_DIR}/usr/bin/autoheader} || exit $?\n    rm -rf autom4te.cache\nfi\n\ncd \"${DERIVED_FILE_DIR}\" && mkdir -p tcl && cd tcl &&\nif [ \"${TCL_SRCROOT}\"/macosx/configure -nt config.status ]; then\n    echo \"Configuring Tcl\"\n    CC=$(xcrun -find ${GCC} || echo ${GCC})\n    \"${TCL_SRCROOT}\"/macosx/configure --cache-file=../config.cache --prefix=${PREFIX} --bindir=${BINDIR} --libdir=${LIBDIR} --mandir=${MANDIR} --includedir=${INCLUDEDIR} --disable-shared CC=${CC} LD=${CC} ${CONFIGURE_ARGS}\nelse\n    ./config.status\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 		F9A5C5F608F651AB008AE941 /* Configure Tk */ = {
@@ -4000,7 +4000,7 @@
 			);
 			inputPaths = (
 				"$(TK_SRCROOT)/macosx/configure.ac",
-				"$(TK_SRCROOT)/unix/configure.in",
+				"$(TK_SRCROOT)/unix/configure.ac",
 				"$(TK_SRCROOT)/unix/tcl.m4",
 				"$(TK_SRCROOT)/unix/aclocal.m4",
 				"$(TK_SRCROOT)/unix/tkConfig.sh.in",
@@ -4011,7 +4011,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/bash;
-			shellScript = "## tk configure shell script phase\n\ncd \"${TK_SRCROOT}\"/macosx &&\nif [ configure.ac -nt configure -o ../unix/configure.in -nt configure -o ../unix/tcl.m4 -nt configure -o ../unix/aclocal.m4 -nt configure ]; then\n    echo \"Running autoconf & autoheader in tk/macosx\"\n    rm -rf autom4te.cache\n    ${AUTOCONF:-${DEVELOPER_DIR}/usr/bin/autoconf} && ${AUTOHEADER:-${DEVELOPER_DIR}/usr/bin/autoheader} || exit $?\n    rm -rf autom4te.cache\nfi\n\ncd \"${DERIVED_FILE_DIR}\" && mkdir -p tk && cd tk &&\nif [ \"${TK_SRCROOT}\"/macosx/configure -nt config.status ]; then\n    echo \"Configuring Tk\"\n    CC=$(xcrun -find ${GCC} || echo ${GCC})\n    \"${TK_SRCROOT}\"/macosx/configure --cache-file=../config.cache --prefix=${PREFIX} --bindir=${BINDIR} --libdir=${LIBDIR} --mandir=${MANDIR} --includedir=${INCLUDEDIR} --disable-shared --enable-aqua --with-tcl=../tcl CC=${CC} LD=${CC} ${CONFIGURE_ARGS}\nelse\n    ./config.status\nfi\n";
+			shellScript = "## tk configure shell script phase\n\ncd \"${TK_SRCROOT}\"/macosx &&\nif [ configure.ac -nt configure -o ../unix/configure.ac -nt configure -o ../unix/tcl.m4 -nt configure -o ../unix/aclocal.m4 -nt configure ]; then\n    echo \"Running autoconf & autoheader in tk/macosx\"\n    rm -rf autom4te.cache\n    ${AUTOCONF:-${DEVELOPER_DIR}/usr/bin/autoconf} && ${AUTOHEADER:-${DEVELOPER_DIR}/usr/bin/autoheader} || exit $?\n    rm -rf autom4te.cache\nfi\n\ncd \"${DERIVED_FILE_DIR}\" && mkdir -p tk && cd tk &&\nif [ \"${TK_SRCROOT}\"/macosx/configure -nt config.status ]; then\n    echo \"Configuring Tk\"\n    CC=$(xcrun -find ${GCC} || echo ${GCC})\n    \"${TK_SRCROOT}\"/macosx/configure --cache-file=../config.cache --prefix=${PREFIX} --bindir=${BINDIR} --libdir=${LIBDIR} --mandir=${MANDIR} --includedir=${INCLUDEDIR} --disable-shared --enable-aqua --with-tcl=../tcl CC=${CC} LD=${CC} ${CONFIGURE_ARGS}\nelse\n    ./config.status\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 		F9FD30B40CC1AD070073837D /* Configure Tcl */ = {
@@ -4021,7 +4021,7 @@
 			);
 			inputPaths = (
 				"$(TCL_SRCROOT)/macosx/configure.ac",
-				"$(TCL_SRCROOT)/unix/configure.in",
+				"$(TCL_SRCROOT)/unix/configure.ac",
 				"$(TCL_SRCROOT)/unix/tcl.m4",
 				"$(TCL_SRCROOT)/unix/aclocal.m4",
 				"$(TCL_SRCROOT)/unix/tclConfig.sh.in",
@@ -4034,7 +4034,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/bash;
-			shellScript = "## tcl configure shell script phase\n\ncd \"${TCL_SRCROOT}\"/macosx &&\nif [ configure.ac -nt configure -o ../unix/configure.in -nt configure -o ../unix/tcl.m4 -nt configure -o ../unix/aclocal.m4 -nt configure ]; then\n    echo \"Running autoconf & autoheader in tcl/macosx\"\n    rm -rf autom4te.cache\n    ${AUTOCONF:-${DEVELOPER_DIR}/usr/bin/autoconf} && ${AUTOHEADER:-${DEVELOPER_DIR}/usr/bin/autoheader} || exit $?\n    rm -rf autom4te.cache\nfi\n\ncd \"${DERIVED_FILE_DIR}\" && mkdir -p tcl && cd tcl &&\nif [ \"${TCL_SRCROOT}\"/macosx/configure -nt config.status ]; then\n    echo \"Configuring Tcl\"\n    CC=$(xcrun -find ${GCC} || echo ${GCC})\n    \"${TCL_SRCROOT}\"/macosx/configure --cache-file=../config.cache --prefix=${PREFIX} --bindir=${BINDIR} --libdir=${LIBDIR} --mandir=${MANDIR} --includedir=${INCLUDEDIR} --disable-shared CC=${CC} LD=${CC} ${CONFIGURE_ARGS}\nelse\n    ./config.status\nfi\n";
+			shellScript = "## tcl configure shell script phase\n\ncd \"${TCL_SRCROOT}\"/macosx &&\nif [ configure.ac -nt configure -o ../unix/configure.ac -nt configure -o ../unix/tcl.m4 -nt configure -o ../unix/aclocal.m4 -nt configure ]; then\n    echo \"Running autoconf & autoheader in tcl/macosx\"\n    rm -rf autom4te.cache\n    ${AUTOCONF:-${DEVELOPER_DIR}/usr/bin/autoconf} && ${AUTOHEADER:-${DEVELOPER_DIR}/usr/bin/autoheader} || exit $?\n    rm -rf autom4te.cache\nfi\n\ncd \"${DERIVED_FILE_DIR}\" && mkdir -p tcl && cd tcl &&\nif [ \"${TCL_SRCROOT}\"/macosx/configure -nt config.status ]; then\n    echo \"Configuring Tcl\"\n    CC=$(xcrun -find ${GCC} || echo ${GCC})\n    \"${TCL_SRCROOT}\"/macosx/configure --cache-file=../config.cache --prefix=${PREFIX} --bindir=${BINDIR} --libdir=${LIBDIR} --mandir=${MANDIR} --includedir=${INCLUDEDIR} --disable-shared CC=${CC} LD=${CC} ${CONFIGURE_ARGS}\nelse\n    ./config.status\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 		F9FD30B50CC1AD070073837D /* Configure Tk */ = {
@@ -4044,7 +4044,7 @@
 			);
 			inputPaths = (
 				"$(TK_SRCROOT)/macosx/configure.ac",
-				"$(TK_SRCROOT)/unix/configure.in",
+				"$(TK_SRCROOT)/unix/configure.ac",
 				"$(TK_SRCROOT)/unix/tcl.m4",
 				"$(TK_SRCROOT)/unix/aclocal.m4",
 				"$(TK_SRCROOT)/unix/tkConfig.sh.in",
@@ -4055,7 +4055,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/bash;
-			shellScript = "## tk configure shell script phase\n\ncd \"${TK_SRCROOT}\"/macosx &&\nif [ configure.ac -nt configure -o ../unix/configure.in -nt configure -o ../unix/tcl.m4 -nt configure -o ../unix/aclocal.m4 -nt configure ]; then\n    echo \"Running autoconf & autoheader in tk/macosx\"\n    rm -rf autom4te.cache\n    ${AUTOCONF:-${DEVELOPER_DIR}/usr/bin/autoconf} && ${AUTOHEADER:-${DEVELOPER_DIR}/usr/bin/autoheader} || exit $?\n    rm -rf autom4te.cache\nfi\n\ncd \"${DERIVED_FILE_DIR}\" && mkdir -p tk && cd tk &&\nif [ \"${TK_SRCROOT}\"/macosx/configure -nt config.status ]; then\n    echo \"Configuring Tk\"\n    CC=$(xcrun -find ${GCC} || echo ${GCC})\n    PATH=\"${PATH}:/usr/X11R6/bin\" \"${TK_SRCROOT}\"/macosx/configure --cache-file=../config.cache --prefix=${PREFIX} --bindir=${BINDIR} --libdir=${LIBDIR} --mandir=${MANDIR} --includedir=${INCLUDEDIR} --disable-shared --enable-xft --with-tcl=../tcl CC=${CC} LD=${CC} ${CONFIGURE_ARGS}\nelse\n    ./config.status\nfi";
+			shellScript = "## tk configure shell script phase\n\ncd \"${TK_SRCROOT}\"/macosx &&\nif [ configure.ac -nt configure -o ../unix/configure.ac -nt configure -o ../unix/tcl.m4 -nt configure -o ../unix/aclocal.m4 -nt configure ]; then\n    echo \"Running autoconf & autoheader in tk/macosx\"\n    rm -rf autom4te.cache\n    ${AUTOCONF:-${DEVELOPER_DIR}/usr/bin/autoconf} && ${AUTOHEADER:-${DEVELOPER_DIR}/usr/bin/autoheader} || exit $?\n    rm -rf autom4te.cache\nfi\n\ncd \"${DERIVED_FILE_DIR}\" && mkdir -p tk && cd tk &&\nif [ \"${TK_SRCROOT}\"/macosx/configure -nt config.status ]; then\n    echo \"Configuring Tk\"\n    CC=$(xcrun -find ${GCC} || echo ${GCC})\n    PATH=\"${PATH}:/usr/X11R6/bin\" \"${TK_SRCROOT}\"/macosx/configure --cache-file=../config.cache --prefix=${PREFIX} --bindir=${BINDIR} --libdir=${LIBDIR} --mandir=${MANDIR} --includedir=${INCLUDEDIR} --disable-shared --enable-xft --with-tcl=../tcl CC=${CC} LD=${CC} ${CONFIGURE_ARGS}\nelse\n    ./config.status\nfi";
 			showEnvVarsInLog = 0;
 		};
 /* End PBXShellScriptBuildPhase section */
diff --git a/macosx/configure.ac b/macosx/configure.ac
index 69573c5..41f39d6 100644
--- a/macosx/configure.ac
+++ b/macosx/configure.ac
@@ -8,4 +8,4 @@ dnl	include the configure sources from ../unix:
 
 m4_include(../unix/aclocal.m4)
 m4_define(SC_USE_CONFIG_HEADERS)
-m4_include(../unix/configure.in)
+m4_include(../unix/configure.ac)
diff --git a/macosx/tkMacOSXButton.c b/macosx/tkMacOSXButton.c
index ebbcf09..f4fbc48 100644
--- a/macosx/tkMacOSXButton.c
+++ b/macosx/tkMacOSXButton.c
@@ -318,7 +318,8 @@ TkpComputeButtonGeometry(
 		Tcl_GetString(butPtr->textPtr), -1, butPtr->wrapLength,
 		butPtr->justify, 0, &butPtr->textWidth, &butPtr->textHeight);
 
-	txtWidth = butPtr->textWidth + DEF_INSET_LEFT + DEF_INSET_RIGHT;
+	/*Remove extraneous padding around label widgets.*/
+	txtWidth = butPtr->textWidth;
 	txtHeight = butPtr->textHeight + DEF_INSET_BOTTOM + DEF_INSET_TOP;
 	charWidth = Tk_TextWidth(butPtr->tkfont, "0", 1);
 	Tk_GetFontMetrics(butPtr->tkfont, &fm);
diff --git a/macosx/tkMacOSXDraw.c b/macosx/tkMacOSXDraw.c
index 6a0b409..f48538d 100644
--- a/macosx/tkMacOSXDraw.c
+++ b/macosx/tkMacOSXDraw.c
@@ -314,29 +314,35 @@ XCopyPlane(
 		TkpClipMask *clipPtr = (TkpClipMask *) gc->clip_mask;
 		unsigned long imageBackground  = gc->background;
                 if (clipPtr && clipPtr->type == TKP_CLIP_PIXMAP){
-			CGImageRef mask = TkMacOSXCreateCGImageWithDrawable(clipPtr->value.pixmap);
-			CGRect rect = CGRectMake(dest_x, dest_y, width, height);
-			rect = CGRectOffset(rect, dstDraw->xOff, dstDraw->yOff);
-			CGContextSaveGState(context);
-			/* Move the origin of the destination to top left. */
-			CGContextTranslateCTM(context, 0, rect.origin.y + CGRectGetMaxY(rect));
-			CGContextScaleCTM(context, 1, -1);
-			/* Fill with the background color, clipping to the mask. */
-			CGContextClipToMask(context, rect, mask);
-			TkMacOSXSetColorInContext(gc, gc->background, dc.context);
-			CGContextFillRect(dc.context, rect);
-			/* Fill with the foreground color, clipping to the intersection of img and mask. */
-			CGContextClipToMask(context, rect, img);
-			TkMacOSXSetColorInContext(gc, gc->foreground, context);
-			CGContextFillRect(context, rect);
-			CGContextRestoreGState(context);
-			CGImageRelease(mask);
-			CGImageRelease(img);
+		    CGRect srcRect = CGRectMake(src_x, src_y, width, height);
+		    CGImageRef mask = TkMacOSXCreateCGImageWithDrawable(clipPtr->value.pixmap);
+		    CGImageRef submask = CGImageCreateWithImageInRect(img, srcRect);
+		    CGRect rect = CGRectMake(dest_x, dest_y, width, height);
+		    rect = CGRectOffset(rect, dstDraw->xOff, dstDraw->yOff);
+		    CGContextSaveGState(context);
+		    /* Move the origin of the destination to top left. */
+		    CGContextTranslateCTM(context, 0, rect.origin.y + CGRectGetMaxY(rect));
+		    CGContextScaleCTM(context, 1, -1);
+		    /* Fill with the background color, clipping to the mask. */
+		    CGContextClipToMask(context, rect, submask);
+		    TkMacOSXSetColorInContext(gc, gc->background, dc.context);
+		    CGContextFillRect(context, rect);
+		    /* Fill with the foreground color, clipping to the
+		       intersection of img and mask. */
+		    CGImageRef subimage = CGImageCreateWithImageInRect(img, srcRect);
+		    CGContextClipToMask(context, rect, subimage);
+		    TkMacOSXSetColorInContext(gc, gc->foreground, context);
+		    CGContextFillRect(context, rect);
+		    CGContextRestoreGState(context);
+		    CGImageRelease(img);
+		    CGImageRelease(mask);
+		    CGImageRelease(submask);
+		    CGImageRelease(subimage);
 		} else {
 		    DrawCGImage(dst, gc, dc.context, img, gc->foreground, imageBackground,
 				CGRectMake(0, 0, srcDraw->size.width, srcDraw->size.height),
-			    CGRectMake(src_x, src_y, width, height),
-			    CGRectMake(dest_x, dest_y, width, height));
+				CGRectMake(src_x, src_y, width, height),
+				CGRectMake(dest_x, dest_y, width, height));
 		    CGImageRelease(img);
 		}
 	    } else { /* no image */
@@ -393,9 +399,11 @@ TkPutImage(
 	CGImageRef img = CreateCGImageWithXImage(image);
 
 	if (img) {
+	    /* If the XImage has big pixels, rescale the source dimensions.*/
+	    int pp = image->pixelpower;
 	    DrawCGImage(d, gc, dc.context, img, gc->foreground, gc->background,
-		    CGRectMake(0, 0, image->width, image->height),
-		    CGRectMake(src_x, src_y, width, height),
+		    CGRectMake(0, 0, image->width<<pp, image->height<<pp),
+		    CGRectMake(src_x<<pp, src_y<<pp, width<<pp, height<<pp),
 		    CGRectMake(dest_x, dest_y, width, height));
 	    CFRelease(img);
 	} else {
@@ -786,9 +794,6 @@ DrawCGImage(
 	CGContextDrawImage(context, dstBounds, image);
 	CGContextRestoreGState(context);
 #endif /* TK_MAC_DEBUG_IMAGE_DRAWING */
-	/*if (CGImageIsMask(image)) {
-	    CGContextRestoreGState(context);
-	}*/
 	if (subImage) {
 	    CFRelease(subImage);
 	}
diff --git a/macosx/tkMacOSXEmbed.c b/macosx/tkMacOSXEmbed.c
index 99f7584..5ea7603 100644
--- a/macosx/tkMacOSXEmbed.c
+++ b/macosx/tkMacOSXEmbed.c
@@ -193,7 +193,7 @@ TkpMakeWindow(
 int
 TkpScanWindowId(
     Tcl_Interp *interp,
-    CONST char * string,
+    const char * string,
     Window *idPtr)
 {
     int code;
diff --git a/macosx/tkMacOSXFont.c b/macosx/tkMacOSXFont.c
index c48e56e..d3e0e41 100644
--- a/macosx/tkMacOSXFont.c
+++ b/macosx/tkMacOSXFont.c
@@ -672,14 +672,14 @@ void
 TkpGetFontAttrsForChar(
     Tk_Window tkwin,		/* Window on the font's display */
     Tk_Font tkfont,		/* Font to query */
-    Tcl_UniChar c,		/* Character of interest */
+    int c,         		/* Character of interest */
     TkFontAttributes* faPtr)	/* Output: Font attributes */
 {
     MacFont *fontPtr = (MacFont *) tkfont;
     NSFont *nsFont = fontPtr->nsFont;
     *faPtr = fontPtr->font.fa;
     if (nsFont && ![[nsFont coveredCharacterSet] characterIsMember:c]) {
-	UTF16Char ch = c;
+	UTF16Char ch = (UTF16Char) c;
 
 	nsFont = [nsFont bestMatchingFontForCharacters:&ch
 		length:1 attributes:nil actualCoveredLength:NULL];
diff --git a/macosx/tkMacOSXSubwindows.c b/macosx/tkMacOSXSubwindows.c
index f026318..f92d260 100644
--- a/macosx/tkMacOSXSubwindows.c
+++ b/macosx/tkMacOSXSubwindows.c
@@ -153,8 +153,6 @@ XMapWindow(
 	    if ( [win canBecomeKeyWindow] ) {
 		[win makeKeyAndOrderFront:NSApp];
 	    }
-	    /* Why do we need this? (It is used by Carbon)*/
-	    [win windowRef];
 	    TkMacOSXApplyWindowAttributes(macWin->winPtr, win);
 	}
 	TkMacOSXInvalClipRgns((Tk_Window) macWin->winPtr);
@@ -316,7 +314,6 @@ XResizeWindow(
     display->request++;
     if (Tk_IsTopLevel(macWin->winPtr) && !Tk_IsEmbedded(macWin->winPtr)) {
 	NSWindow *w = macWin->winPtr->wmInfoPtr->window;
-
 	if (w) {
 	    NSRect r = [w contentRectForFrameRect:[w frame]];
 	    r.origin.y += r.size.height - height;
@@ -360,10 +357,19 @@ XMoveResizeWindow(
     if (Tk_IsTopLevel(macWin->winPtr) && !Tk_IsEmbedded(macWin->winPtr)) {
 	NSWindow *w = macWin->winPtr->wmInfoPtr->window;
 	if (w) {
-	    NSRect r = NSMakeRect(x + macWin->winPtr->wmInfoPtr->xInParent,
-		    tkMacOSXZeroScreenHeight - (y +
-		    macWin->winPtr->wmInfoPtr->yInParent + height),
-		    width, height);
+	    /* We explicitly convert everything to doubles so we don't get
+	     * surprised (again) by what happens when you do arithmetic with
+	     * unsigned ints.
+	     */
+	    CGFloat X = (CGFloat)x;
+	    CGFloat Y = (CGFloat)y;
+	    CGFloat Width = (CGFloat)width;
+	    CGFloat Height = (CGFloat)height;
+	    CGFloat XOff = (CGFloat)macWin->winPtr->wmInfoPtr->xInParent;
+	    CGFloat YOff = (CGFloat)macWin->winPtr->wmInfoPtr->yInParent;
+	    NSRect r = NSMakeRect(X + XOff,
+	    			  tkMacOSXZeroScreenHeight - Y - YOff - Height,
+	    			  Width, Height);
 	    [w setFrame:[w frameRectForContentRect:r] display:YES];
 	}
     } else {
diff --git a/macosx/tkMacOSXXStubs.c b/macosx/tkMacOSXXStubs.c
index 5d6ffb9..1313c9f 100644
--- a/macosx/tkMacOSXXStubs.c
+++ b/macosx/tkMacOSXXStubs.c
@@ -681,14 +681,6 @@ XForceScreenSaver(
     display->request++;
 }
 
-void
-Tk_FreeXId(
-    Display *display,
-    XID xid)
-{
-    /* no-op function needed for stubs implementation. */
-}
-
 int
 XSync(
     Display *display,
@@ -805,6 +797,10 @@ XCreateImage(
     ximage->format = format;
     ximage->data = data;
     ximage->obdata = NULL;
+    /* The default pixelpower is 0.  This must be explicitly set to 1 in the
+     * case of an XImage extracted from a Retina display.
+     */
+    ximage->pixelpower = 0;
 
     if (format == ZPixmap) {
 	ximage->bits_per_pixel = 32;
@@ -856,7 +852,8 @@ XCreateImage(
  * Results:
  *	Returns a newly allocated XImage containing the data from the given
  *	rectangle of the given drawable, or NULL if the XImage could not be
- *     constructed.
+ *	constructed.  NOTE: If we are copying from a window on a Retina
+ *	display, the dimensions of the XImage will be 2*width x 2*height.
  *
  * Side effects:
  *	None.
@@ -885,7 +882,19 @@ XGetImage(
     int	        bitmap_pad = 0;
     int	        bytes_per_row = 4*width;
     int                size;
-    TkMacOSXDbgMsg("XGetImage");
+    MacDrawable *macDraw = (MacDrawable *) d;
+    NSWindow *win = TkMacOSXDrawableWindow(d);
+    /* This code assumes that backing scale factors are integers.  Currently
+     * Retina displays use a scale factor of 2.0 and normal displays use 1.0.
+     * We do not support any other values here.
+     */
+    int scalefactor = 1;
+    if (win && [win respondsToSelector:@selector(backingScaleFactor)]) {
+	scalefactor = ([win backingScaleFactor] == 2.0) ? 2 : 1;
+    }
+    int scaled_height = height * scalefactor;
+    int scaled_width = width * scalefactor;
+
     if (format == ZPixmap) {
 	if (width == 0 || height == 0) {
 	    /* This happens all the time.
@@ -894,7 +903,7 @@ XGetImage(
 	    return NULL;
 	}
 
-	bitmap_rep =  BitmapRepFromDrawableRect(d, x, y,width, height);
+	bitmap_rep =  BitmapRepFromDrawableRect(d, x, y, width, height);
 	bitmap_fmt = [bitmap_rep bitmapFormat];
 
 	if ( bitmap_rep == Nil                        ||
@@ -913,7 +922,9 @@ XGetImage(
 	if ( [bitmap_rep isPlanar ] == 0 &&
 	     [bitmap_rep samplesPerPixel] == 4 ) {
 	    bytes_per_row = [bitmap_rep bytesPerRow];
-	    size = bytes_per_row*height;
+	    assert(bytes_per_row == 4 * scaled_width);
+	    assert([bitmap_rep bytesPerPlane] == bytes_per_row * scaled_height);
+	    size = bytes_per_row*scaled_height;
 	    image_data = (char*)[bitmap_rep bitmapData];
 	    if ( image_data ) {
 		int row, n, m;
@@ -924,7 +935,7 @@ XGetImage(
 		*/
 		if (bitmap_fmt == 0) {
 		    /* BGRA */
-		    for (row=0, n=0; row<height; row++, n+=bytes_per_row) {
+		    for (row=0, n=0; row<scaled_height; row++, n+=bytes_per_row) {
 			for (m=n; m<n+bytes_per_row; m+=4) {
 			    *(bitmap+m)   = *(image_data+m+2);
 			    *(bitmap+m+1) = *(image_data+m+1);
@@ -934,7 +945,7 @@ XGetImage(
 		    }
 		} else {
 		    /* ABGR */
-		    for (row=0, n=0; row<height; row++, n+=bytes_per_row) {
+		    for (row=0, n=0; row<scaled_height; row++, n+=bytes_per_row) {
 			for (m=n; m<n+bytes_per_row; m+=4) {
 			    *(bitmap+m)   = *(image_data+m+3);
 			    *(bitmap+m+1) = *(image_data+m+2);
@@ -947,7 +958,11 @@ XGetImage(
 	}
 	if (bitmap) {
 	    imagePtr = XCreateImage(display, NULL, depth, format, offset,
-				    (char*)bitmap, width, height, bitmap_pad, bytes_per_row);
+				    (char*)bitmap, scaled_width, scaled_height,
+				    bitmap_pad, bytes_per_row);
+	    if (scalefactor == 2) {
+	    	imagePtr->pixelpower = 1;
+	     }
 	    [ns_image removeRepresentation:bitmap_rep]; /*releases the rep*/
 	    [ns_image release];
 	}