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# DP: Fix cross building a native compiler.
--- a/src/gcc/configure.ac
+++ b/src/gcc/configure.ac
@@ -2141,7 +2141,7 @@ else
# Clearing GMPINC is necessary to prevent host headers being
# used by the build compiler. Defining GENERATOR_FILE stops
# system.h from including gmp.h.
- CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
+ CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD} -DGENERATOR_FILE" \
CXX="${CXX_FOR_BUILD}" CXXFLAGS="${CXXFLAGS_FOR_BUILD}" \
LD="${LD_FOR_BUILD}" LDFLAGS="${LDFLAGS_FOR_BUILD}" \
GMPINC="" CPPFLAGS="${CPPFLAGS_FOR_BUILD} -DGENERATOR_FILE" \
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