Make Erlgeom compile on Windows

README.md

@@ -27,3 +27,21 @@ more examples.
     5> erlgeom:disjoint(Geom1, Geom3).
     true
     6>
+
+
+On Windows
+----------
+
+You need to have GEOS installed, let's say it was installed to `C:\cygwin\opt\couchbase`.
+
+Open a shell which has all compilers and the MSVC environment set up (e.g. the Windows SDK 7.1 Command Prompt).
+
+Now set it up so that GEOS and Erlang can be found:
+
+    SET INCLUDE=%INCLUDE%;C:\cygwin\opt\couchbase\include
+    SET LIB=%LIB%;C:\cygwin\opt\couchbase\lib
+    SET PATH=%PATH%;C:\cygwin\opt\couchbase\bin;C:\erl5.9.1\bin
+
+And finally compile the whole thing:
+
+    rebar compile

rebar.cmd

@@ -0,0 +1,4 @@
+@echo off
+setlocal
+set rebarscript=%~f0
+escript.exe "%rebarscript:.cmd=%" %*

rebar.config

@@ -5,7 +5,30 @@
 ]}.
 
 {port_env, [
-    %{"(linux|solaris|darwin)", "CFLAGS", "$CFLAGS -g -Wall"},
-    % Link the GEOS C binding
-    {"(linux|solaris|darwin)", "LDFLAGS", "$LDFLAGS -lgeos_c"}
+    %% add MS Visual C++ support to rebar on Windows
+    {"win32", "CC", "cl.exe"},
+    {"win32", "CXX", "cl.exe"},
+    {"win32", "LINKER", "link.exe"},
+    %% DRV_* and EXE_* Templates are identical
+    {"win32", "DRV_CXX_TEMPLATE",
+     "$CXX /c $CXXFLAGS $DRV_CFLAGS $PORT_IN_FILES /Fo$PORT_OUT_FILE"},
+    {"win32", "DRV_CC_TEMPLATE",
+     "$CC /c $CFLAGS $DRV_CFLAGS $PORT_IN_FILES /Fo$PORT_OUT_FILE"},
+    {"win32", "DRV_LINK_TEMPLATE",
+     "$LINKER $PORT_IN_FILES $LDFLAGS $DRV_LDFLAGS /OUT:$PORT_OUT_FILE"},
+    %% DRV_* and EXE_* Templates are identical
+    {"win32", "EXE_CXX_TEMPLATE",
+     "$CXX /c $CXXFLAGS $EXE_CFLAGS $PORT_IN_FILES /Fo$PORT_OUT_FILE"},
+    {"win32", "EXE_CC_TEMPLATE",
+     "$CC /c $CFLAGS $EXE_CFLAGS $PORT_IN_FILES /Fo$PORT_OUT_FILE"},
+    {"win32", "EXE_LINK_TEMPLATE",
+     "$LINKER $PORT_IN_FILES $LDFLAGS $EXE_LDFLAGS /OUT:$PORT_OUT_FILE"},
+    %% ERL_CFLAGS are ok as -I even though strictly it should be /I
+    {"win32", "ERL_LDFLAGS", " /LIBPATH:$ERL_EI_LIBDIR erl_interface.lib ei.lib"},
+    {"win32", "DRV_CFLAGS", "/Zi /Wall $ERL_CFLAGS"},
+    {"win32", "DRV_LDFLAGS", "/DLL $ERL_LDFLAGS"},
+
+    % GEOS specifc settings
+    {"(linux|solaris|darwin)", "LDFLAGS", "$LDFLAGS -lgeos_c"},
+    {"win32", "DRV_LDFLAGS", "$DRV_LDFLAGS geos_c.lib"}
 ]}.

rebar_makecheck.config

@@ -6,7 +6,30 @@
 ]}.
 
 {port_env, [
-    %{"(linux|solaris|darwin)", "CFLAGS", "$CFLAGS -g -Wall"},
-    % Link the GEOS C binding
-    {"(linux|solaris|darwin)", "LDFLAGS", "$LDFLAGS -lgeos_c"}
+    %% add MS Visual C++ support to rebar on Windows
+    {"win32", "CC", "cl.exe"},
+    {"win32", "CXX", "cl.exe"},
+    {"win32", "LINKER", "link.exe"},
+    %% DRV_* and EXE_* Templates are identical
+    {"win32", "DRV_CXX_TEMPLATE",
+     "$CXX /c $CXXFLAGS $DRV_CFLAGS $PORT_IN_FILES /Fo$PORT_OUT_FILE"},
+    {"win32", "DRV_CC_TEMPLATE",
+     "$CC /c $CFLAGS $DRV_CFLAGS $PORT_IN_FILES /Fo$PORT_OUT_FILE"},
+    {"win32", "DRV_LINK_TEMPLATE",
+     "$LINKER $PORT_IN_FILES $LDFLAGS $DRV_LDFLAGS /OUT:$PORT_OUT_FILE"},
+    %% DRV_* and EXE_* Templates are identical
+    {"win32", "EXE_CXX_TEMPLATE",
+     "$CXX /c $CXXFLAGS $EXE_CFLAGS $PORT_IN_FILES /Fo$PORT_OUT_FILE"},
+    {"win32", "EXE_CC_TEMPLATE",
+     "$CC /c $CFLAGS $EXE_CFLAGS $PORT_IN_FILES /Fo$PORT_OUT_FILE"},
+    {"win32", "EXE_LINK_TEMPLATE",
+     "$LINKER $PORT_IN_FILES $LDFLAGS $EXE_LDFLAGS /OUT:$PORT_OUT_FILE"},
+    %% ERL_CFLAGS are ok as -I even though strictly it should be /I
+    {"win32", "ERL_LDFLAGS", " /LIBPATH:$ERL_EI_LIBDIR erl_interface.lib ei.lib"},
+    {"win32", "DRV_CFLAGS", "/Zi /Wall $ERL_CFLAGS"},
+    {"win32", "DRV_LDFLAGS", "/DLL $ERL_LDFLAGS"},
+
+    % GEOS specifc settings
+    {"(linux|solaris|darwin)", "LDFLAGS", "$LDFLAGS -lgeos_c"},
+    {"win32", "DRV_LDFLAGS", "$DRV_LDFLAGS geos_c.lib"}
 ]}.