Annotate Makefile with hints about building under Windows

You can build subsurface with MinGW. It requires installing lots of random
packages, plus some things still don't work. One is that xml2-config
appears to be missing. So this annotates the Makefile to tell a person
building under Windows how to work around this. But we can't make this
platform conditional as this workaround is hardcoding the install path.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

diff --git a/Makefile b/Makefile
index 4be5991f400b6980279afe6b2fea3dad8112907e..cd9fcdd6fc8f6f698987112489ea38535f05c58a 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -55,6 +55,10 @@ endif
 # about it if it doesn't.
 LIBUSB = $(shell pkg-config --libs libusb-1.0 2> /dev/null)
 
+# it appears that xml2-config isn't included in the libxml2 package for
+# MinGW - so under Windows you may want to replace this with a hardcoded
+# path to the installdir - something like
+# LIBXML2 = -L/c/opt/gtk/lib -lxml2
 LIBXML2 = $(shell xml2-config --libs)
 LIBGTK = $(shell pkg-config --libs gtk+-2.0 glib-2.0 gconf-2.0)
 LIBDIVECOMPUTERCFLAGS = -I$(LIBDIVECOMPUTERINCLUDES)
@@ -80,6 +84,16 @@ install: $(NAME)
        $(INSTALL) -d -m 755 $(MANDIR)
        $(INSTALL) -m 644 $(MANFILES) $(MANDIR)
 
+# it appears that xml2-config isn't included in the libxml2 package for
+# MinGW - so under Windows you may want to replace this with a hardcoded
+# path to the inclde dir - something like
+#
+# XML2INCLUDE = -I/c/opt/gtk/include/libxml2
+#
+# parse-xml.o: parse-xml.c dive.h
+#      $(CC) $(CFLAGS) `pkg-config --cflags glib-2.0` -c $(XML2INCLUDE)  parse-xml.c
+
+ 
 parse-xml.o: parse-xml.c dive.h
        $(CC) $(CFLAGS) `pkg-config --cflags glib-2.0` -c `xml2-config --cflags`  parse-xml.c