gnucash master: Amend previous commit

[Geert Janssens]

Updated	 via  https://github.com/Gnucash/gnucash/commit/d96bb3eb (commit)
	from  https://github.com/Gnucash/gnucash/commit/d6677ff3 (commit)



commit d96bb3ebd5f31ed81e9dab156e966296e15842f7
Author: Geert Janssens <geert at kobaltwit.be>
Date:   Mon Sep 4 22:04:04 2017 +0200

    Amend previous commit
    
    The utf8 conversion is only used in the Windows specific section so there's no
    need to define an overloaded function on std::string in this case.
    Also CMakeLists.txt doesn't require the MingW specific library name setting
    for boost::filesystem. Just removing the hardcoded one allows the build to
    pick the right name up from the Boost_LIBRARIES variable.



Summary of changes:
 libgnucash/core-utils/CMakeLists.txt         |  7 +----
 libgnucash/core-utils/gnc-filepath-utils.cpp | 40 ++++++++++------------------
 2 files changed, 15 insertions(+), 32 deletions(-)