fix upgrade error

json-c.spec

@@ -6,7 +6,7 @@
 
 Name:           json-c
 Version:        0.15
-Release:        4
+Release:        5
 Summary:        JSON implementation in C
 
 License:        MIT
@@ -82,6 +82,13 @@ DESTDIR="%{buildroot}" %__cmake --install "%{_vpath_builddir}"
 mkdir -p %{buildroot}%{_pkgdocdir}
 hardlink -cfv %{buildroot}%{_pkgdocdir}
 
+%pretrans devel -p <lua>
+path = "%{_includedir}/%{name}"
+st = posix.stat(path)
+if st and st.type == "link" then
+  os.remove(path)
+end
+
 %ldconfig_scriptlets
 
 %files
@@ -89,7 +96,7 @@ hardlink -cfv %{buildroot}%{_pkgdocdir}
 %{_libdir}/lib%{name}.so.%{so_ver}*
 
 %files devel
-%{_includedir}/%{name}/
+%{_includedir}/%{name}
 %{_libdir}/cmake/%{name}
 %{_libdir}/lib%{name}.so
 %{_libdir}/pkgconfig/%{name}.pc
@@ -98,6 +105,12 @@ hardlink -cfv %{buildroot}%{_pkgdocdir}
 %doc %{_pkgdocdir}
 
 %changelog
+* Tue May 24 2022 fengtao <fengtao40@huawei.com> - 0.15-5
+- we got upgrade error when upgrade json-c from very low version,
+  for example json-c-0.11-5. because old version has a softlink:
+  /usr/include/json-c  --> /usr/include/json
+  and now, softlink has been removed. so, we fix this in pretrans
+
 * Fri May 6 2022 wuchaochao <cyanrose@yeah.net> - 0.15-4
 - add   backport-json-escape-str-avoid-harmless-unsigned-integer-overflow.patch