Preserve timestamp when copying objects from tools

1 files changed, 6 insertions, 0 deletions

diff --git a/acprep b/acprep
index e6da1869..78809f59 100755
--- a/acprep
+++ b/acprep
@@ -685,12 +685,16 @@ class PrepareBuild(CommandLineApp):
                          self.current_version())
         version_m4.close()
 
+    def copytimes(self, src, dest):
+        os.utime(dest, (os.stat(src)[ST_ATIME], os.stat(src)[ST_MTIME]))
+
     def phase_autogen(self, *args):
         self.log.info('Executing phase: autogen')
 
         if not exists('autogen.sh') or \
            self.isnewer('tools/autogen.sh', 'autogen.sh'):
             shutil.copyfile('tools/autogen.sh', 'autogen.sh')
+            self.copytimes('tools/autogen.sh', 'autogen.sh')
 
         self.execute('sh', 'tools/autogen.sh')
 
@@ -704,10 +708,12 @@ class PrepareBuild(CommandLineApp):
         if not exists('configure.ac') or \
            self.isnewer('tools/configure.ac', 'configure.ac'):
             shutil.copyfile('tools/configure.ac', 'configure.ac')
+            self.copytimes('tools/configure.ac', 'configure.ac')
 
         if not exists('Makefile.am') or \
            self.isnewer('tools/Makefile.am', 'Makefile.am'):
             shutil.copyfile('tools/Makefile.am', 'Makefile.am')
+            self.copytimes('tools/Makefile.am', 'Makefile.am')
 
         reason = self.need_to_prepare_autotools()
         if reason: