Build on ARM of the 1.2.x branch fails

[Didier Barvaux]

On ARM systems, building the 1.2.x branch fails.

Steps to reproduce:
  1. ./autogen.sh
  2. make clean all

Output:

Making all in decomp
make[3]: Entering directory `/rohc-library-1_2_x-arm/build/src/decomp'
/bin/sh ../../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I../.. -I../../src/common -I../../src/comp -g -Wall -Wstrict-prototypes -Werror -g -O2 -MT rohc_decomp.lo -MD -MP -MF .deps/rohc_decomp.Tpo -c -o rohc_decomp.lo rohc_decomp.c
libtool: compile: gcc -DHAVE_CONFIG_H -I. -I../.. -I../../src/common -I../../src/comp -g -Wall -Wstrict-prototypes -Werror -g -O2 -MT rohc_decomp.lo -MD -MP -MF .deps/rohc_decomp.Tpo -c rohc_decomp.c -fPIC -DPIC -o .libs/rohc_decomp.o
libtool: compile: gcc -DHAVE_CONFIG_H -I. -I../.. -I../../src/common -I../../src/comp -g -Wall -Wstrict-prototypes -Werror -g -O2 -MT rohc_decomp.lo -MD -MP -MF .deps/rohc_decomp.Tpo -c rohc_decomp.c -o rohc_decomp.o >/dev/null 2>&1
mv -f .deps/rohc_decomp.Tpo .deps/rohc_decomp.Plo
/bin/sh ../../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I../.. -I../../src/common -I../../src/comp -g -Wall -Wstrict-prototypes -Werror -g -O2 -MT feedback.lo -MD -MP -MF .deps/feedback.Tpo -c -o feedback.lo feedback.c
libtool: compile: gcc -DHAVE_CONFIG_H -I. -I../.. -I../../src/common -I../../src/comp -g -Wall -Wstrict-prototypes -Werror -g -O2 -MT feedback.lo -MD -MP -MF .deps/feedback.Tpo -c feedback.c -fPIC -DPIC -o .libs/feedback.o
libtool: compile: gcc -DHAVE_CONFIG_H -I. -I../.. -I../../src/common -I../../src/comp -g -Wall -Wstrict-prototypes -Werror -g -O2 -MT feedback.lo -MD -MP -MF .deps/feedback.Tpo -c feedback.c -o feedback.o >/dev/null 2>&1
mv -f .deps/feedback.Tpo .deps/feedback.Plo
/bin/sh ../../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I../.. -I../../src/common -I../../src/comp -g -Wall -Wstrict-prototypes -Werror -g -O2 -MT d_uncompressed.lo -MD -MP -MF .deps/d_uncompressed.Tpo -c -o d_uncompressed.lo d_uncompressed.c
libtool: compile: gcc -DHAVE_CONFIG_H -I. -I../.. -I../../src/common -I../../src/comp -g -Wall -Wstrict-prototypes -Werror -g -O2 -MT d_uncompressed.lo -MD -MP -MF .deps/d_uncompressed.Tpo -c d_uncompressed.c -fPIC -DPIC -o .libs/d_uncompressed.o
libtool: compile: gcc -DHAVE_CONFIG_H -I. -I../.. -I../../src/common -I../../src/comp -g -Wall -Wstrict-prototypes -Werror -g -O2 -MT d_uncompressed.lo -MD -MP -MF .deps/d_uncompressed.Tpo -c d_uncompressed.c -o d_uncompressed.o >/dev/null 2>&1
mv -f .deps/d_uncompressed.Tpo .deps/d_uncompressed.Plo
/bin/sh ../../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I../.. -I../../src/common -I../../src/comp -g -Wall -Wstrict-prototypes -Werror -g -O2 -MT d_generic.lo -MD -MP -MF .deps/d_generic.Tpo -c -o d_generic.lo d_generic.c
libtool: compile: gcc -DHAVE_CONFIG_H -I. -I../.. -I../../src/common -I../../src/comp -g -Wall -Wstrict-prototypes -Werror -g -O2 -MT d_generic.lo -MD -MP -MF .deps/d_generic.Tpo -c d_generic.c -fPIC -DPIC -o .libs/d_generic.o
d_generic.c: In function 'build_uncompressed_ip4':
../../src/common/rohc.h:681:2: error: invalid 'asm': invalid operand for code 'w'
../../src/common/rohc.h:681:2: error: invalid 'asm': invalid operand for code 'w'
make[3]: Leaving directory `/rohc-library-1_2_x-arm/build/src/decomp'
make[3]: *** [d_generic.lo] Error 1
make[2]: Leaving directory `/rohc-library-1_2_x-arm/build/src'
make[1]: Leaving directory `/rohc-library-1_2_x-arm/build'
make[2]: *** [all-recursive] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

[Didier Barvaux (didier-barvaux)]

Branch 1.3.x is not affected.

[Didier Barvaux (didier-barvaux)]

Confirmed on the 1.2.x branch.

[Didier Barvaux (didier-barvaux)]

On the 1.2.x branch, add an arch-independent implementation of the IP checksum.
See http://bazaar.launchpad.net/~didier-barvaux/rohc/1.2.x/revision/131

[Didier Barvaux (didier-barvaux)]

Trunk is not affected.