From e55a6728a9cebda9077f6e05954333f8ecaf352b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Maximilian=20Ke=C3=9Fler?= <git@maximilian-kessler.de>
Date: Fri, 17 Dec 2021 15:34:59 +0100
Subject: [PATCH] fix handling extra header correctly

---
 build/utils/build_information.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/build/utils/build_information.py b/build/utils/build_information.py
index 769eabe..cfe1270 100644
--- a/build/utils/build_information.py
+++ b/build/utils/build_information.py
@@ -96,7 +96,8 @@ class BuildInfo:
                 or include_pytex_info_text
                 or include_timestamp
                 or include_pytex_version
-                or include_git_version):
+                or include_git_version
+                or extra_header):
             self._header = None
             return
         else:
@@ -113,7 +114,8 @@ class BuildInfo:
             self._header += PYTEX_VERSION
         if include_git_version:
             self._header += SOURCE_CODE_VERSION
-        self._header += ['']
+        if len(self._header) > 0:
+            self._header += ['']
         if extra_header:
             self._header += extra_header + ['']