http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60902
--- Comment #3 from Arthur Marsh <arthur.marsh at internode dot on.net> --- I've attached the config.mak produced by ./configure --cc=gcc-4.9 --host-cc=gcc-4.9 --dep-cc=gcc-4.9 The CFLAGS from config.mak: CFLAGS= -std=c99 -fomit-frame-pointer -pthread -D_GNU_SOURCE=1 -D_REENTRANT -I /usr/include/SDL -g -Wdeclaration-after-statement -Wall -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wwrite-strings -Wtype-limits -Wundef -missing-prototypes -Wno-pointer-to-int-cast -Wstrict-prototypes -Wempty-body -Wno-parentheses -Wno-switch -Wno-format-zero-length -Wno-pointer-sign -O3 -fno-math-errno -fno-signed-zeros -fno-tree-vectorize -Werror=implicit-function-declaration -Werror=missing-prototypes -Werror=return-type -Werror=vla -Wno-maybe-uninitialized