gcc-4.5: Fix segfault in dwarf2out

gcc-4.5: Fix segfault in dwarf2out

Currently following fails

rm-oe-linux-uclibceabi-gcc -march=armv7-a -mtune=cortex-a8 -mfpu=neon
-mfloat-abi=softfp -mthumb-interwork -mno-thumb
--sysroot=/oe/build-minimal-uclibc/minimal-uclibc-dev/sysroots/armv7a-oe-linux-uclibceabi
-DHAVE_CONFIG_H -I. -I.. -DASN1_BUILDING -I./../gl -I./../gl -I./..
-fexpensive-optimizations -fomit-frame-pointer -frename-registers -Os
-pipe -g -MT coding.lo -MD -MP -MF .deps/coding.Tpo -c coding.c -o
coding.o

coding.c: In function 'asn1_length_der':
coding.c:101:1: internal compiler error: in
dwarf2out_frame_debug_expr, at dwarf2out.c:2221
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
{standard input}: Assembler messages:

Signed-off-by: Khem Raj <raj.khem@gmail.com>