libunwind-git: Improve usage of build/ dir to make mkpatches work

[Kamil Rytarowski <n54%gmx.com@localhost>]

Module Name:	pkgsrc-wip
Committed By:	Kamil Rytarowski <n54%gmx.com@localhost>
Pushed By:	kamil
Date:		Sat Feb 6 16:49:43 2016 +0100
Changeset:	b01e7660eb41395a75a5c65f4d69529218af12ad

Modified Files:
	libunwind-git/Makefile

Log Message:
libunwind-git: Improve usage of build/ dir to make mkpatches work

To see a diff of this commit:
https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?p=pkgsrc-wip.git;a=commitdiff;h=b01e7660eb41395a75a5c65f4d69529218af12ad

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

diffstat:
 libunwind-git/Makefile | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diffs:
diff --git a/libunwind-git/Makefile b/libunwind-git/Makefile
index f7a1b08..2a66d90 100644
--- a/libunwind-git/Makefile
+++ b/libunwind-git/Makefile
@@ -11,7 +11,8 @@ HOMEPAGE=	http://libunwind.llvm.org/
 COMMENT=	LLVM libunwind
 LICENSE=	modified-bsd
 
-WRKSRC=			${WRKDIR}/build
+WRKSRC=			${WRKDIR}
+CONFIGURE_DIRS=		${WRKDIR}/build
 
 USE_LANGUAGES=		c c++
 USE_CMAKE+=		yes
@@ -24,7 +25,7 @@ CMAKE_ARGS+=	-DCMAKE_CXX_COMPILER=g++
 CMAKE_ARG_PATH=	${WRKDIR}/libunwind
 
 post-extract:
-	${RUN} mkdir -p ${WRKSRC}
+	${RUN} mkdir -p ${WRKSRC}/build
 
 .include "../../wip/mk/git-package.mk"
 .include "../../wip/llvm-git/buildlink3.mk"