ET#67376 [Connctor/C++] Fix the build-date in the INFO_BIN in Fedora packages

Updated the spec file to override the default value of epoch date from the macros.
Removed the unsetting the SOURCE_DATE_EPOCH env variable in cmake.

Author: gipulla

buildinfo.cmake

@@ -36,7 +36,6 @@ FUNCTION(GENERATE_INFO_BIN)
   ENDIF()
 
   MESSAGE("Generating INFO_BIN")
-  UNSET(ENV{SOURCE_DATE_EPOCH})
   string(TIMESTAMP INFO_DATE "%Y-%m-%d")
 
   IF (CMAKE_BUILD_TYPE)

packaging/mysql-connector-c++.spec.in

@@ -48,6 +48,8 @@
 %global dist            .sl15
 %endif
 
+%global source_date_epoch_from_changelog 0
+
 Summary:        MySQL database connector for C++
 Name:           mysql-connector-c++%{?product_suffix}
 Version:        @CONCPP_VERSION@
@@ -222,6 +224,9 @@ rm %{buildroot}/usr/{INFO_SRC,INFO_BIN}
 %endif
 
 %changelog
+* Thu Jun 04 2020 Gipson Pulla <[email protected]> - 8.0.21-1
+- Updated the macro to use the system date
+
 * Fri Feb 15 2019 Bjorn Munch <[email protected]> - 8.0.16-1
 - CMake 3 should not be used on Fedora, only on Oracle Linux or Red Hat
 - Removed use of cmake_path as it is no longer needed