Index: build/premake/premake5/build/gmake.macosx/Premake5.make
===================================================================
--- build/premake/premake5/build/gmake.macosx/Premake5.make
+++ build/premake/premake5/build/gmake.macosx/Premake5.make
@@ -27,12 +27,12 @@
   INCLUDES += -I../../contrib/lua/src -I../../contrib/luashim -I../../contrib/zlib -I../../contrib/libzip -I../../contrib/curl/include
   FORCE_INCLUDE +=
   ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
-  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -O3 -Wall -Wextra -mmacosx-version-min=10.4
-  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -O3 -Wall -Wextra -fno-stack-protector -mmacosx-version-min=10.4
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -O3 -Wall -Wextra -mmacosx-version-min=$(MIN_OSX_VERSION)
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -O3 -Wall -Wextra -fno-stack-protector -mmacosx-version-min=$(MIN_OSX_VERSION)
   ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
   LIBS += bin/Release/liblua-lib.a bin/Release/libzip-lib.a bin/Release/libzlib-lib.a bin/Release/libcurl-lib.a -framework CoreServices -framework Foundation -framework Security -lreadline
   LDDEPS += bin/Release/liblua-lib.a bin/Release/libzip-lib.a bin/Release/libzlib-lib.a bin/Release/libcurl-lib.a
-  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=10.4
+  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=$(MIN_OSX_VERSION)
   LINKCMD = $(CC) -o "$@" $(OBJECTS) $(RESOURCES) $(ALL_LDFLAGS) $(LIBS)
   define PREBUILDCMDS
   endef
@@ -62,12 +62,12 @@
   INCLUDES += -I../../contrib/lua/src -I../../contrib/luashim -I../../contrib/zlib -I../../contrib/libzip -I../../contrib/curl/include
   FORCE_INCLUDE +=
   ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
-  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -g -Wall -Wextra -mmacosx-version-min=10.4
-  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -g -Wall -Wextra -mmacosx-version-min=10.4
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -g -Wall -Wextra -mmacosx-version-min=$(MIN_OSX_VERSION)
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -g -Wall -Wextra -mmacosx-version-min=$(MIN_OSX_VERSION)
   ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
   LIBS += bin/Debug/liblua-lib.a bin/Debug/libzip-lib.a bin/Debug/libzlib-lib.a bin/Debug/libcurl-lib.a -framework CoreServices -framework Foundation -framework Security -lreadline
   LDDEPS += bin/Debug/liblua-lib.a bin/Debug/libzip-lib.a bin/Debug/libzlib-lib.a bin/Debug/libcurl-lib.a
-  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=10.4
+  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=$(MIN_OSX_VERSION)
   LINKCMD = $(CC) -o "$@" $(OBJECTS) $(RESOURCES) $(ALL_LDFLAGS) $(LIBS)
   define PREBUILDCMDS
   endef
@@ -586,4 +586,4 @@
 -include $(OBJECTS:%.o=%.d)
 ifneq (,$(PCH))
   -include $(OBJDIR)/$(notdir $(PCH)).d
-endif
\ No newline at end of file
+endif
Index: build/premake/premake5/build/gmake.macosx/curl-lib.make
===================================================================
--- build/premake/premake5/build/gmake.macosx/curl-lib.make
+++ build/premake/premake5/build/gmake.macosx/curl-lib.make
@@ -27,12 +27,12 @@
   INCLUDES += -I../../contrib/curl/include -I../../contrib/curl/lib -I../../contrib/mbedtls/include -I../../contrib/zlib
   FORCE_INCLUDE +=
   ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
-  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -O3 -w -mmacosx-version-min=10.4
-  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -O3 -w -fno-stack-protector -mmacosx-version-min=10.4
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -O3 -w -mmacosx-version-min=$(MIN_OSX_VERSION)
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -O3 -w -fno-stack-protector -mmacosx-version-min=$(MIN_OSX_VERSION)
   ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
   LIBS +=
   LDDEPS +=
-  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=10.4
+  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=$(MIN_OSX_VERSION)
   LINKCMD = $(AR) -rcs "$@" $(OBJECTS)
   define PREBUILDCMDS
   endef
@@ -62,12 +62,12 @@
   INCLUDES += -I../../contrib/curl/include -I../../contrib/curl/lib -I../../contrib/mbedtls/include -I../../contrib/zlib
   FORCE_INCLUDE +=
   ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
-  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=10.4
-  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=10.4
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=$(MIN_OSX_VERSION)
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=$(MIN_OSX_VERSION)
   ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
   LIBS +=
   LDDEPS +=
-  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=10.4
+  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=$(MIN_OSX_VERSION)
   LINKCMD = $(AR) -rcs "$@" $(OBJECTS)
   define PREBUILDCMDS
   endef
@@ -1279,4 +1279,4 @@
 -include $(OBJECTS:%.o=%.d)
 ifneq (,$(PCH))
   -include $(OBJDIR)/$(notdir $(PCH)).d
-endif
\ No newline at end of file
+endif
Index: build/premake/premake5/build/gmake.macosx/example.make
===================================================================
--- build/premake/premake5/build/gmake.macosx/example.make
+++ build/premake/premake5/build/gmake.macosx/example.make
@@ -27,12 +27,12 @@
   INCLUDES += -I../../contrib/lua/src -I../../contrib/luashim
   FORCE_INCLUDE +=
   ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
-  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -O3 -fPIC -Wall -Wextra -mmacosx-version-min=10.4
-  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -O3 -fPIC -Wall -Wextra -fno-stack-protector -mmacosx-version-min=10.4
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -O3 -fPIC -Wall -Wextra -mmacosx-version-min=$(MIN_OSX_VERSION)
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -O3 -fPIC -Wall -Wextra -fno-stack-protector -mmacosx-version-min=$(MIN_OSX_VERSION)
   ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
   LIBS += bin/Release/libluashim-lib.a
   LDDEPS += bin/Release/libluashim-lib.a
-  ALL_LDFLAGS += $(LDFLAGS) -dynamiclib -Wl,-install_name,@rpath/example.so -mmacosx-version-min=10.4
+  ALL_LDFLAGS += $(LDFLAGS) -dynamiclib -Wl,-install_name,@rpath/example.so -mmacosx-version-min=$(MIN_OSX_VERSION)
   LINKCMD = $(CC) -o "$@" $(OBJECTS) $(RESOURCES) $(ALL_LDFLAGS) $(LIBS)
   define PREBUILDCMDS
   endef
@@ -62,12 +62,12 @@
   INCLUDES += -I../../contrib/lua/src -I../../contrib/luashim
   FORCE_INCLUDE +=
   ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
-  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -fPIC -g -Wall -Wextra -mmacosx-version-min=10.4
-  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -fPIC -g -Wall -Wextra -mmacosx-version-min=10.4
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -fPIC -g -Wall -Wextra -mmacosx-version-min=$(MIN_OSX_VERSION)
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -fPIC -g -Wall -Wextra -mmacosx-version-min=$(MIN_OSX_VERSION)
   ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
   LIBS += bin/Debug/libluashim-lib.a
   LDDEPS += bin/Debug/libluashim-lib.a
-  ALL_LDFLAGS += $(LDFLAGS) -dynamiclib -Wl,-install_name,@rpath/example.so -mmacosx-version-min=10.4
+  ALL_LDFLAGS += $(LDFLAGS) -dynamiclib -Wl,-install_name,@rpath/example.so -mmacosx-version-min=$(MIN_OSX_VERSION)
   LINKCMD = $(CC) -o "$@" $(OBJECTS) $(RESOURCES) $(ALL_LDFLAGS) $(LIBS)
   define PREBUILDCMDS
   endef
@@ -145,4 +145,4 @@
 -include $(OBJECTS:%.o=%.d)
 ifneq (,$(PCH))
   -include $(OBJDIR)/$(notdir $(PCH)).d
-endif
\ No newline at end of file
+endif
Index: build/premake/premake5/build/gmake.macosx/lua-lib.make
===================================================================
--- build/premake/premake5/build/gmake.macosx/lua-lib.make
+++ build/premake/premake5/build/gmake.macosx/lua-lib.make
@@ -27,12 +27,12 @@
   INCLUDES += -I../../contrib/lua/src
   FORCE_INCLUDE +=
   ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
-  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -O3 -w -mmacosx-version-min=10.4
-  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -O3 -w -fno-stack-protector -mmacosx-version-min=10.4
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -O3 -w -mmacosx-version-min=$(MIN_OSX_VERSION)
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -O3 -w -fno-stack-protector -mmacosx-version-min=$(MIN_OSX_VERSION)
   ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
   LIBS +=
   LDDEPS +=
-  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=10.4
+  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=$(MIN_OSX_VERSION)
   LINKCMD = $(AR) -rcs "$@" $(OBJECTS)
   define PREBUILDCMDS
   endef
@@ -62,12 +62,12 @@
   INCLUDES += -I../../contrib/lua/src
   FORCE_INCLUDE +=
   ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
-  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=10.4
-  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=10.4
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=$(MIN_OSX_VERSION)
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=$(MIN_OSX_VERSION)
   ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
   LIBS +=
   LDDEPS +=
-  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=10.4
+  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=$(MIN_OSX_VERSION)
   LINKCMD = $(AR) -rcs "$@" $(OBJECTS)
   define PREBUILDCMDS
   endef
@@ -424,4 +424,4 @@
 -include $(OBJECTS:%.o=%.d)
 ifneq (,$(PCH))
   -include $(OBJDIR)/$(notdir $(PCH)).d
-endif
\ No newline at end of file
+endif
Index: build/premake/premake5/build/gmake.macosx/luashim-lib.make
===================================================================
--- build/premake/premake5/build/gmake.macosx/luashim-lib.make
+++ build/premake/premake5/build/gmake.macosx/luashim-lib.make
@@ -27,12 +27,12 @@
   INCLUDES += -I../../contrib/lua/src
   FORCE_INCLUDE +=
   ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
-  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -O3 -fPIC -Wall -Wextra -mmacosx-version-min=10.4
-  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -O3 -fPIC -Wall -Wextra -fno-stack-protector -mmacosx-version-min=10.4
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -O3 -fPIC -Wall -Wextra -mmacosx-version-min=$(MIN_OSX_VERSION)
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -O3 -fPIC -Wall -Wextra -fno-stack-protector -mmacosx-version-min=$(MIN_OSX_VERSION)
   ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
   LIBS +=
   LDDEPS +=
-  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=10.4
+  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=$(MIN_OSX_VERSION)
   LINKCMD = $(AR) -rcs "$@" $(OBJECTS)
   define PREBUILDCMDS
   endef
@@ -62,12 +62,12 @@
   INCLUDES += -I../../contrib/lua/src
   FORCE_INCLUDE +=
   ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
-  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -fPIC -g -Wall -Wextra -mmacosx-version-min=10.4
-  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -fPIC -g -Wall -Wextra -mmacosx-version-min=10.4
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -fPIC -g -Wall -Wextra -mmacosx-version-min=$(MIN_OSX_VERSION)
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -fPIC -g -Wall -Wextra -mmacosx-version-min=$(MIN_OSX_VERSION)
   ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
   LIBS +=
   LDDEPS +=
-  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=10.4
+  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=$(MIN_OSX_VERSION)
   LINKCMD = $(AR) -rcs "$@" $(OBJECTS)
   define PREBUILDCMDS
   endef
@@ -145,4 +145,4 @@
 -include $(OBJECTS:%.o=%.d)
 ifneq (,$(PCH))
   -include $(OBJDIR)/$(notdir $(PCH)).d
-endif
\ No newline at end of file
+endif
Index: build/premake/premake5/build/gmake.macosx/mbedtls-lib.make
===================================================================
--- build/premake/premake5/build/gmake.macosx/mbedtls-lib.make
+++ build/premake/premake5/build/gmake.macosx/mbedtls-lib.make
@@ -27,12 +27,12 @@
   INCLUDES += -I../../contrib/mbedtls/include -I../../contrib/zlib
   FORCE_INCLUDE +=
   ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
-  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -O3 -w -mmacosx-version-min=10.4
-  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -O3 -w -fno-stack-protector -mmacosx-version-min=10.4
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -O3 -w -mmacosx-version-min=$(MIN_OSX_VERSION)
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -O3 -w -fno-stack-protector -mmacosx-version-min=$(MIN_OSX_VERSION)
   ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
   LIBS +=
   LDDEPS +=
-  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=10.4
+  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=$(MIN_OSX_VERSION)
   LINKCMD = $(AR) -rcs "$@" $(OBJECTS)
   define PREBUILDCMDS
   endef
@@ -62,12 +62,12 @@
   INCLUDES += -I../../contrib/mbedtls/include -I../../contrib/zlib
   FORCE_INCLUDE +=
   ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
-  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=10.4
-  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=10.4
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=$(MIN_OSX_VERSION)
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=$(MIN_OSX_VERSION)
   ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
   LIBS +=
   LDDEPS +=
-  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=10.4
+  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=$(MIN_OSX_VERSION)
   LINKCMD = $(AR) -rcs "$@" $(OBJECTS)
   define PREBUILDCMDS
   endef
@@ -766,4 +766,4 @@
 -include $(OBJECTS:%.o=%.d)
 ifneq (,$(PCH))
   -include $(OBJDIR)/$(notdir $(PCH)).d
-endif
\ No newline at end of file
+endif
Index: build/premake/premake5/build/gmake.macosx/zip-lib.make
===================================================================
--- build/premake/premake5/build/gmake.macosx/zip-lib.make
+++ build/premake/premake5/build/gmake.macosx/zip-lib.make
@@ -27,12 +27,12 @@
   INCLUDES += -I../../contrib/libzip/include
   FORCE_INCLUDE +=
   ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
-  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -O3 -w -mmacosx-version-min=10.4
-  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -O3 -w -fno-stack-protector -mmacosx-version-min=10.4
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -O3 -w -mmacosx-version-min=$(MIN_OSX_VERSION)
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -O3 -w -fno-stack-protector -mmacosx-version-min=$(MIN_OSX_VERSION)
   ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
   LIBS +=
   LDDEPS +=
-  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=10.4
+  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=$(MIN_OSX_VERSION)
   LINKCMD = $(AR) -rcs "$@" $(OBJECTS)
   define PREBUILDCMDS
   endef
@@ -62,12 +62,12 @@
   INCLUDES += -I../../contrib/libzip/include
   FORCE_INCLUDE +=
   ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
-  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=10.4
-  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=10.4
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=$(MIN_OSX_VERSION)
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=$(MIN_OSX_VERSION)
   ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
   LIBS +=
   LDDEPS +=
-  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=10.4
+  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=$(MIN_OSX_VERSION)
   LINKCMD = $(AR) -rcs "$@" $(OBJECTS)
   define PREBUILDCMDS
   endef
@@ -910,4 +910,4 @@
 -include $(OBJECTS:%.o=%.d)
 ifneq (,$(PCH))
   -include $(OBJDIR)/$(notdir $(PCH)).d
-endif
\ No newline at end of file
+endif
Index: build/premake/premake5/build/gmake.macosx/zlib-lib.make
===================================================================
--- build/premake/premake5/build/gmake.macosx/zlib-lib.make
+++ build/premake/premake5/build/gmake.macosx/zlib-lib.make
@@ -27,12 +27,12 @@
   INCLUDES +=
   FORCE_INCLUDE +=
   ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
-  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -O3 -w -mmacosx-version-min=10.4
-  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -O3 -w -fno-stack-protector -mmacosx-version-min=10.4
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -O3 -w -mmacosx-version-min=$(MIN_OSX_VERSION)
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -O3 -w -fno-stack-protector -mmacosx-version-min=$(MIN_OSX_VERSION)
   ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
   LIBS +=
   LDDEPS +=
-  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=10.4
+  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=$(MIN_OSX_VERSION)
   LINKCMD = $(AR) -rcs "$@" $(OBJECTS)
   define PREBUILDCMDS
   endef
@@ -62,12 +62,12 @@
   INCLUDES +=
   FORCE_INCLUDE +=
   ALL_CPPFLAGS += $(CPPFLAGS) -MMD -MP $(DEFINES) $(INCLUDES)
-  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=10.4
-  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=10.4
+  ALL_CFLAGS += $(CFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=$(MIN_OSX_VERSION)
+  ALL_CXXFLAGS += $(CXXFLAGS) $(ALL_CPPFLAGS) -g -w -mmacosx-version-min=$(MIN_OSX_VERSION)
   ALL_RESFLAGS += $(RESFLAGS) $(DEFINES) $(INCLUDES)
   LIBS +=
   LDDEPS +=
-  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=10.4
+  ALL_LDFLAGS += $(LDFLAGS) -mmacosx-version-min=$(MIN_OSX_VERSION)
   LINKCMD = $(AR) -rcs "$@" $(OBJECTS)
   define PREBUILDCMDS
   endef
@@ -271,4 +271,4 @@
 -include $(OBJECTS:%.o=%.d)
 ifneq (,$(PCH))
   -include $(OBJDIR)/$(notdir $(PCH)).d
-endif
\ No newline at end of file
+endif
Index: build/workspaces/build-osx-bundle.sh
===================================================================
--- build/workspaces/build-osx-bundle.sh
+++ build/workspaces/build-osx-bundle.sh
@@ -23,12 +23,14 @@
 export ARCH=${ARCH:="x86_64"}
 
 OSX_VERSION=`sw_vers -productVersion | grep -Eo "^\d+.\d+"`
+OSX_VERSION=10.14
+
 # Set SDK and mimimum required OS X version
 export SYSROOT=${SYSROOT:="/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX$OSX_VERSION.sdk"}
-export MIN_OSX_VERSION=${MIN_OSX_VERSION:="10.7"}
+export MIN_OSX_VERSION=${MIN_OSX_VERSION:="10.9"}
 
 # 0 A.D. release version, e.g. Alpha 21 is 0.0.21
-BUNDLE_VERSION=${BUNDLE_VERSION:="0.0.X"}
+BUNDLE_VERSION=${BUNDLE_VERSION:="0.0.23b"}
 
 # Define compiler as "clang", this is all Mavericks supports.
 # gcc symlinks may still exist, but they are simply clang with
Index: libraries/osx/build-osx-libs.sh
===================================================================
--- libraries/osx/build-osx-libs.sh
+++ libraries/osx/build-osx-libs.sh
@@ -196,7 +196,7 @@
   tar -xf $LIB_ARCHIVE
   pushd $LIB_DIRECTORY
 
-  (./configure CFLAGS="$CFLAGS" LDFLAGS="$LDFLAGS" --prefix="$INSTALL_DIR" --enable-ipv6 --with-darwinssl --without-gssapi --without-libmetalink --without-librtmp --without-libssh2 --without-nss --without-polarssl --without-spnego --disable-ares --disable-ldap --disable-ldaps --without-libidn2 --with-zlib="${ZLIB_DIR}" --enable-shared=no && make ${JOBS} && make install) || die "libcurl build failed"
+  (./configure CFLAGS="$CFLAGS" LDFLAGS="$LDFLAGS" --prefix="$INSTALL_DIR" --without-libpsl --enable-ipv6 --with-darwinssl --without-gssapi --without-libmetalink --without-librtmp --without-libssh2 --without-nss --without-polarssl --without-spnego --disable-ares --disable-ldap --disable-ldaps --without-libidn2 --with-zlib="${ZLIB_DIR}" --enable-shared=no && make ${JOBS} && make install) || die "libcurl build failed"
   popd
   touch .already-built
 else
@@ -516,7 +516,7 @@
   tar -xf $LIB_ARCHIVE
   pushd $LIB_DIRECTORY/nspr
 
-  (CFLAGS="$CFLAGS" CXXFLAGS="$CXXFLAGS" LDFLAGS="$LDFLAGS" ./configure --prefix="$NSPR_DIR" && make ${JOBS} && make install) || die "NSPR build failed"
+  (CFLAGS="$CFLAGS" CXXFLAGS="$CXXFLAGS" LDFLAGS="$LDFLAGS" ./configure --enable-64bit --prefix="$NSPR_DIR" && make ${JOBS} && make install) || die "NSPR build failed"
   popd
   # TODO: how can we not build the dylibs?
   rm -f lib/*.dylib