make sure that git repo info is only added if the musrfit project source is indeed a git repo, and not e.g. a download.

src/musredit_qt6/musredit/CMakeLists.txt

@@ -1,5 +1,12 @@
 #--- musredit for Qt > 6.0 ----------------------------------------------------
 
+#--- check if project source is repo ------------------------------------------
+if (IS_GIT_REPO)
+  set(HAVE_GIT_REV_H "-DHAVE_GIT_REV_H")  
+else (IS_GIT_REPO)
+  set(HAVE_GIT_REV_H "")  
+endif (IS_GIT_REPO)
+
 set(qt_libs Qt6::Core Qt6::Widgets Qt6::Network Qt6::Xml Qt6::Svg Qt6::PrintSupport)
 
 set(musredit_src
@@ -115,6 +122,11 @@ target_include_directories(musredit
   $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../../include>
 )
 
+target_compile_options(musredit
+  PRIVATE
+    "${HAVE_GIT_REV_H}"  
+)
+
 target_link_libraries(musredit ${qt_libs})
 
 #--- installation info --------------------------------------------------------

src/musredit_qt6/musredit/PMusrEditAbout.cpp

@@ -28,7 +28,9 @@
  ***************************************************************************/
 
 #include "config.h"
+#ifdef HAVE_GIT_REV_H
 #include "git-revision.h"
+#endif
 #include "PMusrEditAbout.h"
 
 //---------------------------------------------------------------------------
@@ -39,8 +41,13 @@ PMusrEditAbout::PMusrEditAbout(QWidget *parent) : QDialog(parent)
 {
   setupUi(this);
 
+#ifdef HAVE_GIT_REV_H
   fGitBranch_label->setText(QString("git-branch: %1").arg(GIT_BRANCH));
   fGitRev_label->setText(QString("git-rev: %1").arg(GIT_CURRENT_SHA1));
+#else
+  fGitBranch_label->setText(QString("git-branch: unknown"));
+  fGitRev_label->setText(QString("git-rev: unknown"));
+#endif
   fMusrfitVersion_label->setText(QString("musrfit-version: %1 (%2)").arg(PACKAGE_VERSION).arg(BUILD_TYPE));
   fRootVersion_label->setText(QString("ROOT-version: %1").arg(ROOT_VERSION_USED));
 

src/musredit_qt6/musredit/main.cpp

@@ -31,7 +31,9 @@
 
 #include <QApplication>
 
+#ifdef HAVE_GIT_REV_H
 #include "git-revision.h"
+#endif
 #include "PTextEdit.h"
 #include "PFitOutputHandler.h"
 
@@ -52,7 +54,11 @@ int main( int argc, char ** argv )
       std::cout << std::endl << std::endl;
       return 0;
     } else if (!strcmp(argv[1], "--version") || !strcmp(argv[1], "-v")) {
+#ifdef HAVE_GIT_REV_H
       std::cout << std::endl << "musredit git-branch: " << GIT_BRANCH << ", git-rev: " << GIT_CURRENT_SHA1;
+#else
+      std::cout << std::endl << "musredit git-branch: unknown, git-rev: unknown.";
+#endif
       std::cout << std::endl << std::endl;
       return 0;
     }