Use LIBS variable instead of LDFLAGS to specify the location of cURL (XERCESC-2028). Patch by Zane U. Ji

git-svn-id: https://svn.apache.org/repos/asf/xerces/c/trunk@1590579 13f79535-47bb-0310-9956-ffa450edef68
Prevent destructors closing a file from throwing an exception (XERCESC-2031)

git-svn-id: https://svn.apache.org/repos/asf/xerces/c/trunk@1597057 13f79535-47bb-0310-9956-ffa450edef68
XERCESC-2024, take two

git-svn-id: https://svn.apache.org/repos/asf/xerces/c/trunk@1603373 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' into colorer-xerces