Revert "firebird: pass link options as LDFLAGS"
Revert "firebird: pass link options as LDFLAGS"

This reverts commit 3136c467dcfc3fe457ccc974684333f431f0af61.

Strangely firebird's build system apparently uses LDFLAGS on Linux
and Windows but not on MacOSX, whereas CXXFLAGS are consistently
put also on linker command lines.

Change-Id: I87dbe69a8d85b058ece9170105bf928cbd22db85

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core