comms/wsjtx: prepare for cmake-3.18.x

- this belongs into the "let's forget this ever happened category".
- with cmake-3.18 the target to patch the thirdparty sources gets
  ran twice. Onde during build and once during the install phase.
- we silently remove the patches again after the build is done, so
  that during the install phase, the patching is a no-op.

PR:		248003

1 files changed, 15 insertions, 2 deletions

diff --git a/comms/wsjtx/Makefile b/comms/wsjtx/Makefile
index 4aa89ffcb526..5435e0774176 100644
--- a/comms/wsjtx/Makefile
+++ b/comms/wsjtx/Makefile
@@ -32,9 +32,22 @@ CMAKE_ARGS+=	-DCMAKE_PREFIX_PATH+=${LOCALBASE}/wsjtx/lib \
 		-DLOCALBASE::STRING="${LOCALBASE}"
 PLIST_SUB+=	PORTVERSION="${PORTVERSION}"
 
+_PATCHES=	wsjtx.patch hamlib.patch
+
 post-patch:
-	${CP} ${FILESDIR}/wsjtx.patch ${WRKSRC}
-	${CP} ${FILESDIR}/hamlib.patch ${WRKSRC}
+.  for _patch in ${_PATCHES}
+	# Keep a copy of the blank patch for the post-build target below
+	${MV} ${WRKSRC}/${_patch} ${WRKSRC}/${_patch}.orig
+	# Copy the patch provided by the ports system
+	${CP} ${FILESDIR}/${_patch}  ${WRKSRC}
+.  endfor
+
+post-build:
+	# With cmake 3.18, the patching stage in the internal build
+	# is ran again, trick it by removing the patch again.
+.  for _patch in ${_PATCHES}
+	${MV} ${WRKSRC}/${_patch}.orig  ${WRKSRC}/${_patch}
+.  endfor
 
 do-install:
 	(cd ${CONFIGURE_WRKSRC};${MAKE} -f Makefile DESTDIR=${STAGEDIR} install)