fix detecting qrcodegen

fix-detecting-qrcodegen.patch

@@ -0,0 +1,24 @@
+diff -up ./configure.ac.tv ./configure.ac
+--- ./configure.ac.tv	2020-01-30 11:51:51.332400167 +0100
++++ ./configure.ac	2020-01-30 11:51:56.775508000 +0100
+@@ -10034,7 +10034,7 @@ if test "$with_system_qrcodegen" = "yes"
+     AC_MSG_RESULT([external])
+     SYSTEM_QRCODEGEN=TRUE
+     AC_LANG_PUSH([C++])
+-    AC_CHECK_HEADER(qrcodegen/QrCode.hpp, [],
++    AC_CHECK_HEADER(qrcodegencpp/QrCode.hpp, [],
+         [AC_MSG_ERROR(qrcodegen headers not found.)], [#include <stdexcept>])
+     AC_CHECK_LIB([qrcodegencpp], [main], [:],
+         [ AC_MSG_ERROR(qrcodegen C++ library not found.) ], [])
+diff -up ./configure.tv ./configure
+--- ./configure.tv	2020-01-30 11:51:53.173436638 +0100
++++ ./configure	2020-01-30 11:52:06.101692758 +0100
+@@ -33732,7 +33732,7 @@ ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS
+ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+ 
+-    ac_fn_cxx_check_header_compile "$LINENO" "qrcodegen/QrCode.hpp" "ac_cv_header_qrcodegen_QrCode_hpp" "#include <stdexcept>
++    ac_fn_cxx_check_header_compile "$LINENO" "qrcodegencpp/QrCode.hpp" "ac_cv_header_qrcodegen_QrCode_hpp" "#include <stdexcept>
+ "
+ if test "x$ac_cv_header_qrcodegen_QrCode_hpp" = xyes; then :
+ 

libreoffice.spec

@@ -243,6 +243,7 @@ Patch0: 0001-don-t-suppress-crashes.patch
 Patch1: 0001-Resolves-rhbz-1432468-disable-opencl-by-default.patch
 # backported
 Patch2: 0001-replace-boost-bimap-in-sdext-pdfimport.patch
+Patch3: fix-detecting-qrcodegen.patch
 
 %if 0%{?rhel}
 # not upstreamed