Index: head/devel/gn/Makefile
===================================================================
--- head/devel/gn/Makefile	(revision 526937)
+++ head/devel/gn/Makefile	(revision 526938)
@@ -1,40 +1,39 @@
 # $FreeBSD$
 
 PORTNAME=	gn
 DISTVERSIONPREFIX=	v
-DISTVERSION=	1600
-PORTREVISION=	1
+DISTVERSION=	1714
 CATEGORIES=	devel
 
 MAINTAINER=	o.hushchenkov@gmail.com
 COMMENT=	Gn meta build framework - standalone version
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 CONFLICTS_INSTALL=	chromium-gn
 
-USES=		alias compiler:c++14-lang ninja python:build shebangfix
+USES=		alias compiler:c++17-lang ninja python:build shebangfix
 USE_GITHUB=	yes
 GH_ACCOUNT=	cglogic # mirror
 SHEBANG_FILES=	${CONFIGURE_SCRIPT}
 HAS_CONFIGURE=	yes
 CONFIGURE_OUTSOURCE=	yes
 CONFIGURE_SCRIPT=	build/gen.py
 CONFIGURE_WRKSRC=	${WRKSRC}/out # --out-path breaks "make test"
 CONFIGURE_ENV=	GN_VERSION=${PORTVERSION}
 CONFIGURE_ARGS=	--platform freebsd ${WITH_DEBUG:D--debug}
 ALL_TARGET=	# empty
 PLIST_FILES=	bin/${PORTNAME}
 
 post-patch:
 	@${REINPLACE_CMD} 's/"python"/"${PYTHON_CMD:T}"/' \
-		${WRKSRC}/tools/gn/exec_process_unittest.cc
+		${WRKSRC}/src/gn/exec_process_unittest.cc
 
 do-install:
 	${INSTALL_PROGRAM} ${INSTALL_WRKSRC}/${PORTNAME} ${STAGEDIR}${PREFIX}/bin
 
 do-test:
 	${TEST_WRKSRC}/gn_unittests
 
 .include <bsd.port.mk>
Index: head/devel/gn/distinfo
===================================================================
--- head/devel/gn/distinfo	(revision 526937)
+++ head/devel/gn/distinfo	(revision 526938)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1560866156
-SHA256 (cglogic-gn-v1600_GH0.tar.gz) = c821d57848a7b7b6ee33333db827abb34545fd939ab7bc3b27f1a64e0a8e1da2
-SIZE (cglogic-gn-v1600_GH0.tar.gz) = 942568
+TIMESTAMP = 1582365298
+SHA256 (cglogic-gn-v1714_GH0.tar.gz) = 6b98b752ef16ab50c45123deb5893ddef6598a5ebac6191efba162c9689ef20c
+SIZE (cglogic-gn-v1714_GH0.tar.gz) = 941711
Index: head/devel/gn/files/patch-build_gen.py
===================================================================
--- head/devel/gn/files/patch-build_gen.py	(revision 526937)
+++ head/devel/gn/files/patch-build_gen.py	(revision 526938)
@@ -1,31 +1,32 @@
 - .git/ is missing in archive, so use version from environment
 
---- build/gen.py.orig	2019-05-30 09:42:43 UTC
+--- build/gen.py.orig	2020-02-22 10:07:32 UTC
 +++ build/gen.py
-@@ -117,24 +117,15 @@ def main(argv):
+@@ -124,25 +124,16 @@ def main(argv):
  
  
  def GenerateLastCommitPosition(host, header):
 -  ROOT_TAG = 'initial-commit'
 -  describe_output = subprocess.check_output(
 -      ['git', 'describe', 'HEAD', '--match', ROOT_TAG], shell=host.is_windows(),
 -      cwd=REPO_ROOT)
 -  mo = re.match(ROOT_TAG + '-(\d+)-g([0-9a-f]+)', describe_output.decode())
 -  if not mo:
 -    raise ValueError(
 -        'Unexpected output from git describe when generating version header')
 -
    contents = '''// Generated by build/gen.py.
  
  #ifndef OUT_LAST_COMMIT_POSITION_H_
  #define OUT_LAST_COMMIT_POSITION_H_
  
+ #define LAST_COMMIT_POSITION_NUM %s
 -#define LAST_COMMIT_POSITION "%s (%s)"
 +#define LAST_COMMIT_POSITION "%s"
  
  #endif  // OUT_LAST_COMMIT_POSITION_H_
--''' % (mo.group(1), mo.group(2))
-+''' % (os.environ['GN_VERSION'])
+-''' % (mo.group(1), mo.group(1), mo.group(2))
++''' % (os.environ['GN_VERSION'], os.environ['GN_VERSION'])
  
    # Only write/touch this file if the commit position has changed.
    old_contents = ''