diff -ur a/src/support/FileName.cpp b/src/support/FileName.cpp
--- a/src/support/FileName.cpp	2018-12-09 21:04:52.000000000 +0100
+++ b/src/support/FileName.cpp	2019-03-15 14:56:04.220000000 +0100
@@ -67,15 +67,6 @@
 using namespace std;
 using namespace lyx::support;
 
-// OK, this is ugly, but it is the only workaround I found to compile
-// with gcc (any version) on a system which uses a non-GNU toolchain.
-// The problem is that gcc uses a weak symbol for a particular
-// instantiation and that the system linker usually does not
-// understand those weak symbols (seen on HP-UX, tru64, AIX and
-// others). Thus we force an explicit instanciation of this particular
-// template (JMarc)
-template struct boost::detail::crc_table_t<32, 0x04C11DB7, true>;
-
 namespace lyx {
 namespace support {