Makefile: add comment on CYGWIN_V15_WIN32API

diff --git a/Makefile b/Makefile
index 53a766e283652d3f0e4602065ec73ea7e675836c..52e298a73b13aef15d145a97173f1fbc72126b3b 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -273,6 +273,10 @@ all::
 #
 # Define NO_REGEX if you have no or inferior regex support in your C library.
 #
+# Define CYGWIN_V15_WIN32API if you are using Cygwin v1.7.x but are not
+# using the current w32api packages. The recommended approach, however,
+# is to update your installation if compilation errors occur.
+#
 # Define HAVE_DEV_TTY if your system can open /dev/tty to interact with the
 # user.
 #
@@ -1086,6 +1090,7 @@ ifeq ($(uname_O),Cygwin)
                NO_SYMLINK_HEAD = YesPlease
                NO_IPV6 = YesPlease
                OLD_ICONV = UnfortunatelyYes
+               CYGWIN_V15_WIN32API = YesPlease
        endif
        NO_THREAD_SAFE_PREAD = YesPlease
        NEEDS_LIBICONV = YesPlease
@@ -1893,6 +1898,9 @@ ifdef NO_REGEX
        COMPAT_CFLAGS += -Icompat/regex
        COMPAT_OBJS += compat/regex/regex.o
 endif
+ifdef CYGWIN_V15_WIN32API
+       COMPAT_CFLAGS += -DCYGWIN_V15_WIN32API
+endif
 
 ifdef USE_NED_ALLOCATOR
        COMPAT_CFLAGS += -Icompat/nedmalloc