bigloo: Fix for Linuxbrew
bigloo: Fix for Linuxbrew

Fix error:
    export: -Wl,--dynamic-linker: bad variable name

Closes Linuxbrew/homebrew-core#145.
Closes Linuxbrew/homebrew-core#3817.

Signed-off-by: Bob W. Hogg <c772a964fd55352a3510e5d535dd9ccc9ac30168@linux.com>

rwhogg/homebrew-core,maxim-belkin/homebrew-core,maxim-belkin/homebrew-core,Linuxbrew/homebrew-core,LinuxbrewTestBot/homebrew-core,rwhogg/homebrew-core,Linuxbrew/homebrew-core,LinuxbrewTestBot/homebrew-core