Compilation error on mac os mountain lion 10.8.2

[bslima]

Steps:
bslima:$ git clone git@github.com:msgpack/msgpack.git
bslima:$ cd msgpack/cpp/
bslima:$ ./bootstrap
bslima:$ ./configure
bslima$ make
make all-recursive
Making all in src
/bin/sh ../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I.. -O3 -Wall -g -MT unpack.lo -MD -MP -MF .deps/unpack.Tpo -c -o unpack.lo unpack.c
libtool: compile: gcc -DHAVE_CONFIG_H -I. -I.. -O3 -Wall -g -MT unpack.lo -MD -MP -MF .deps/unpack.Tpo -c unpack.c -fno-common -DPIC -o .libs/unpack.o
unpack.c:463: internal compiler error: Bus error: 10
Please submit a full bug report,
with preprocessed source if appropriate.
See URL:http://developer.apple.com/bugreporter for instructions.
make[2]: *** [unpack.lo] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

[nobu-k]

Sorry for my late response. In my environment, adding an empty function at the end of unpack.c solved the problem. I don't know why it worked, though. Please try to apply following patch:

diff --git a/src/unpack.c b/src/unpack.c
index d66dc56..4e389ee 100644
--- a/src/unpack.c
+++ b/src/unpack.c
@@ -462,3 +462,6 @@ bool msgpack_unpack_next(msgpack_unpacked* result,
        return true;
 }

+static void dummy_function_to_avoid_bus_error()
+{
+}

Using -O0 instead of -O3 also worked. I guess this is a bug of Mac's gcc. I'll try to find a root cause and a better workaround.

[bslima]

The patch worked. Dont know the root cause yet.

[bisegni]

patch still is need why it is not added into the branch? I know that its is a strange behaviour but it is needed

[nobu-k]

@bisegni You're right. This patch is needed by everyone using OS X. Merge the patch.

I didn't merge it because I didn't even know why this patch solved the problem. Please let me know if someone still has a problem.

[AltarBeastiful]

Issue is still a problem on osx 10.8.3

/bin/sh ../libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I. -I..     -O3 -Wall  -g -MT unpack.lo -MD -MP -MF .deps/unpack.Tpo -c -o unpack.lo unpack.c
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I.. -O3 -Wall -g -MT unpack.lo -MD -MP -MF .deps/unpack.Tpo -c unpack.c  -fno-common -DPIC -o .libs/unpack.o
unpack.c:467: warning: 'dummy_function_to_avoid_bus_error' defined but not used
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I.. -O3 -Wall -g -MT unpack.lo -MD -MP -MF .deps/unpack.Tpo -c unpack.c -o unpack.o >/dev/null 2>&1
make[2]: *** [unpack.lo] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

Indeed it's solved by replacing -O0 by -O3 in configure