shogun needs library dependency on gcc43

[ryandesign (Ryan Carsten Schmidt)]

shogun has a build dependency on gcc43, but shogun links with libraries provided by gcc43:

$ otool -L /opt/local/bin/shogun
/opt/local/bin/shogun:
	/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 125.0.0)
	/opt/local/lib/liblapack.dylib (compatibility version 0.0.0, current version 0.0.0)
	/opt/local/lib/libptcblas.dylib (compatibility version 0.0.0, current version 0.0.0)
	/opt/local/lib/libatlas.dylib (compatibility version 0.0.0, current version 0.0.0)
	/opt/local/lib/libglpk.0.dylib (compatibility version 27.0.0, current version 27.0.0)
	/opt/local/lib/liblzo2.2.dylib (compatibility version 3.0.0, current version 3.0.0)
	/opt/local/lib/libz.1.dylib (compatibility version 1.0.0, current version 1.2.4)
	/opt/local/lib/libbz2.1.0.dylib (compatibility version 1.0.0, current version 1.0.5)
	/opt/local/lib/libshogun.6.dylib (compatibility version 0.0.0, current version 0.0.0)
	/opt/local/lib/libshogunui.3.dylib (compatibility version 0.0.0, current version 0.0.0)
	/opt/local/lib/gcc43/libstdc++.6.dylib (compatibility version 7.0.0, current version 7.10.0)
	/opt/local/lib/gcc43/libgcc_s.1.dylib (compatibility version 1.0.0, current version 1.0.0)

Therefore shogun needs a library dependency, not a build dependency, on gcc43.

[jameskyle@…]

Changed from depends_build to depends_lib in r69303