Include the necessary header path and library path automatically, so

you don't need to specify -I/usr/local/mingw32/include
-L/usr/local/mingw32/lib manually to make things work.

OK pirofti@

devel/mingw/Makefile

@@ -1,9 +1,9 @@
-# $OpenBSD: Makefile,v 1.3 2011/11/17 15:52:39 pirofti Exp $
+# $OpenBSD: Makefile,v 1.4 2012/04/02 03:18:17 jeremy Exp $
 
 COMMENT =	development environment for native Windows applications
 
 V = 		1.0.1
-REVISION =	1
+REVISION =	2
 BASENAME =	x86-mingw32-build
 DISTNAME =	${BASENAME}-${V}-sh
 PKGNAME =	mingw-${V}
@@ -69,6 +69,9 @@ do-build:
 	    CONFIG_SHELL=${LOCALBASE}/bin/bash \
 	    /bin/sh ${WRKBUILD}/${BASENAME}.sh --no-pre-clean --no-post-clean \
 	    --unattended
+	cd ${MINGW32_OUT}/lib/gcc/i386-mingw32/3.4.5/ && \
+		patch < ${FILESDIR}/specs.diff && \
+		${SUBST_CMD} specs
 
 do-install:
 	# Fix the autoconf mess

devel/mingw/files/specs.diff

@@ -0,0 +1,29 @@
+--- specs	Thu Nov 17 15:46:31 2011
++++ specs	Tue Nov 29 08:24:57 2011
+@@ -15,7 +15,7 @@
+  as %(asm_options) %m.s %A }
+ 
+ *cpp:
+-%{posix:-D_POSIX_SOURCE} %{mthreads:-D_MT}
++%{posix:-D_POSIX_SOURCE} %{mthreads:-D_MT} -I${LOCALBASE}/mingw32/include
+ 
+ *cpp_options:
+ %(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w} %{f*} %{g*:%{!g0:%{!fno-working-directory:-fworking-directory}}} %{O*} %{undef}
+@@ -54,7 +54,7 @@
+ %{mthreads:-lmingwthrd} -lmingw32 -lgcc -lmoldname -lmingwex -lmsvcrt
+ 
+ *startfile:
+-%{shared|mdll:dllcrt2%O%s}   %{!shared:%{!mdll:crt2%O%s}} %{pg:gcrt2%O%s}    %{!fno-exceptions:crtbegin%O%s}
++%{shared|mdll:${LOCALBASE}/mingw32/lib/dllcrt2%O%s}   %{!shared:%{!mdll:${LOCALBASE}/mingw32/lib/crt2%O%s}} %{pg:${LOCALBASE}/mingw32/lib/gcrt2%O%s}    %{!fno-exceptions:${LOCALBASE}/mingw32/lib/gcc/i386-mingw32/3.4.5/crtbegin%O%s}
+ 
+ *switches_need_spaces:
+ 
+@@ -87,7 +87,7 @@
+ collect2
+ 
+ *link_libgcc:
+-%D
++%D -L${LOCALBASE}/mingw32/lib
+ 
+ *md_exec_prefix:
+ 

devel/mingw/pkg/README

@@ -1,4 +1,4 @@
-$OpenBSD: README,v 1.2 2011/11/17 14:41:59 pirofti Exp $
+$OpenBSD: README,v 1.3 2012/04/02 03:18:17 jeremy Exp $
 
 +-----------------------------------------------------------------------
 | Running ${FULLPKGNAME} on OpenBSD
@@ -27,8 +27,7 @@ int main (void)
         return 0;
 }
 
-$ g++ -L/usr/local/mingw32/lib -I/usr/local/mingw32/include \
-     CreateFile_test.cpp -o CreateFile_test.exe
+$ g++ CreateFile_test.cpp -o CreateFile_test.exe
 $ file CreateFile_test.exe
 CreateFile_test.exe: MS-DOS executable PE  for MS Windows (console)
 Intel 80386 32-bit