Add safe compilation option -fPIE for GN

add_safe_compilation_options.patch

@@ -0,0 +1,18 @@
+From: "xuchogyu" <xuchongyu@huawei.com>
+Date: Tue, 7 Mar 2023 09:52:37 +0800
+Subject: [PATCH] Add safe compilation option -fPIE for GN
+
+---
+diff -Nur a/build/gen.py b/build/gen.py 
+--- a/build/gen.py      2022-11-25 10:58:41.000000000 +0800
++++ b/build/gen.py      2023-03-06 09:49:35.648580670 +0800
+@@ -371,7 +371,8 @@
+         '-Wall',
+         '-Wextra',
+         '-Wno-unused-parameter',
+-        '-std=c++17'
++        '-std=c++17',
++        '-fPIE'
+     ])
+ 
+     if platform.is_linux() or platform.is_mingw() or platform.is_msys():

gn.spec

@@ -2,13 +2,14 @@
 
 Name:           gn
 Version:        1.0.0
-Release:        1
+Release:        2
 Summary:        Meta-build system that generates build files for Ninja
 License:        BSD-3-Clause
 URL:            https://gn.googlesource.com/gn
 Source0:        %{url}/+archive/gn-%{commit}.tar.gz
 Source1:        last_commit_position.h
-Patch0:         gn-always-python3.patch
+Patch0000:      gn-always-python3.patch
+Patch0001:      add_safe_compilation_options.patch
 
 BuildRequires:  python3-devel ninja-build gcc-c++ clang emacs-common help2man
 
@@ -71,10 +72,11 @@ find '%{buildroot}%{_datadir}/vim/vimfiles' \
 install -t '%{buildroot}%{_emacs_sitestartdir}' -D -p -m 0644 misc/emacs/*.el
 
 install -t '%{buildroot}%{_mandir}/man1' -D -m 0644 -p out/gn.1
-rm -rf %{buildroot}%{_datadir}/vim/vimfiles/__pycache__
+
 
 %check
 out/gn_unittests
+rm -rf %{buildroot}%{_datadir}/vim/vimfiles/__pycache__
 
 
 %files
@@ -100,5 +102,8 @@ out/gn_unittests
 
 
 %changelog
+* Tue Mar 07 2023 xuchongyu <xuchongyu@huawei.com> 1.0.0-2
+- Add safe compilation options
+
 * Tue Nov 29 2022 xuchongyu <xuchongyu@huawei.com> 1.0.0-1
 - init