Build failure without removal of this flag.

Needs investigation before filing upstream bug; may be Solaris-specific issue.

--- libcroco-0.6.8/configure.in 2012-10-15 15:55:43.000000000 -0700

+++ libcroco-0.6.8/configure.in 2015-05-22 16:54:40.646534907 -0700

@@ -133,7 +133,7 @@

-Wstrict-aliasing=2 -Winit-self -Wunsafe-loop-optimizations \

-Wdeclaration-after-statement -Wold-style-definition \

-Wno-missing-field-initializers -Wno-unused-parameter \

- -fno-common -Wno-switch-enum])

+ -Wno-switch-enum])

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