diff --git a/gnu/lib/csu/Makefile b/gnu/lib/csu/Makefile
index 4999d06a578f..1c31a9876dac 100644
--- a/gnu/lib/csu/Makefile
+++ b/gnu/lib/csu/Makefile
@@ -34,6 +34,7 @@ CFLAGS+=	-include osreldate.h
 .if ${MACHINE_CPUARCH} == "powerpc"
 TGTOBJS=	crtsavres.o
 SRCS+=		crtsavres.asm
+CFLAGS+=	-mlongcall
 .endif
 .if ${MACHINE_CPUARCH} == "sparc64"
 TGTOBJS=	crtfastmath.o
diff --git a/lib/clang/clang.build.mk b/lib/clang/clang.build.mk
index a14918dc5e6a..7437a1df7b90 100644
--- a/lib/clang/clang.build.mk
+++ b/lib/clang/clang.build.mk
@@ -11,6 +11,12 @@ CFLAGS+=-I${LLVM_SRCS}/include -I${CLANG_SRCS}/include \
 # LLVM is not strict aliasing safe as of 12/31/2011
 CFLAGS+= -fno-strict-aliasing
 
+# Work around an issue on 32-bit PowerPC, where the clang executable can get
+# too big, causing 'relocation truncated to fit' errors at link time.
+.if ${MACHINE_ARCH} == "powerpc"
+CFLAGS+=-mlongcall
+.endif
+
 TARGET_ARCH?=	${MACHINE_ARCH}
 CFLAGS+=-DLLVM_DEFAULT_TARGET_TRIPLE=\"${TARGET_ARCH:C/amd64/x86_64/}-unknown-freebsd10.0\"
 
diff --git a/lib/csu/powerpc/Makefile b/lib/csu/powerpc/Makefile
index 1e1d1fa2d55a..a3e0cabbe321 100644
--- a/lib/csu/powerpc/Makefile
+++ b/lib/csu/powerpc/Makefile
@@ -6,7 +6,8 @@ SRCS=		crt1.c crti.S crtn.S
 OBJS=		${SRCS:N*.h:R:S/$/.o/g}
 OBJS+=		Scrt1.o gcrt1.o
 CFLAGS+=	-I${.CURDIR}/../common \
-		-I${.CURDIR}/../../libc/include
+		-I${.CURDIR}/../../libc/include \
+		-mlongcall
 
 all: ${OBJS}