Bug#728146: pd-iemambi: FTBFS on kfreebsd-*: #error No byte order defined

[Sebastian Ramacher]

Hi

On 2013-10-30 14:18:24, IOhannes m zmoelnig wrote:
> hi,
> 
> On 2013-10-28 22:08, Sebastian Ramacher wrote:
> > 
> > pd-iemambi fails to build on kfreebsd-* with: | /usr/bin/make  -C
> > src CFLAGS="-g -O2 -fstack-protector --param=ssp-buffer-size=4
> > -Wformat -Werror=format-security -Wall" CXXFLAGS="-g -O2
> > -fstack-protector --param=ssp-buffer-size=4 -Wformat
> > -Werror=format-security -Wall" CPPFLAGS="-D_FORTIFY_SOURCE=2"
> > LDFLAGS="-Wl,-z,relro" | make[1]: Entering directory
> > `/«PKGBUILDDIR»/src' | cc -DPD -DUNIX -W -Wno-unused
> > -Wno-parentheses -Wno-switch -funroll-loops -fomit-frame-pointer
> > -fno-strict-aliasing -DDL_OPEN -fPIC -g -O2 -fstack-protector
> > --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall
> > -I. -I/usr/local/src/pd/src  -c -o ambi_decode.o ambi_decode.c | In
> > file included from ambi_decode.c:7:0: | iemlib.h:69:2: error:
> > #error No byte order defined |  #error No byte order defined |   ^ 
> > | make[1]: *** [ambi_decode.o] Error 1
> > 
> > 
> > Full build log is available at 
> > https://buildd.debian.org/status/fetch.php?pkg=pd-iemambi&arch=kfreebsd-amd64&ver=0.2-1&stamp=1373234505.
> 
> thanks
> > 
> for the bug-report.
> 
> i tried to tackle down the problem and installed a kfreebsd-amd64
> system in VirtualBox.
> for whatever reasons i'm unable to reproduce the FTBFS.
> 
> the problematic code looks like:
> 
> <snip>
> #if defined(__FreeBSD__) || defined(__APPLE__) ||
> defined(__FreeBSD_kernel__)
> # include <machine/endian.h>
> #endif
> 
> #if defined(__unix__) || defined(__APPLE__)
> # if !defined(BYTE_ORDER) || !defined(LITTLE_ENDIAN)
> #  error No byte order defined
> # endif
> #endif
> </snip>
> 
> afaict (using `cpp -dM /dev/null`) both "__FreeBSD_kernel__" and
> "__unix__" are defined by default on kfreebsd-amd64.
> after including <machine/endian.h> BYTE_ORDER is also defined (at
> least according to `cpp -dM /usr/include/machine/endian.h`), so i do
> not know how error can be triggered.
> 
> could anybody please confirm that it pd-iemambi does (not) build on
> their kfreebsd-* systems?

I confirmed the build failure on fischer.d.o. Note that
/usr/include/machine/endian.h guards the definition of BYTE_ORDER and
LITTLE_ENDIAN with #if __BSD_VISIBLE. __BSD_VISIBLE is not defined and
hence only the versions with leading underscores are available.

Regards
-- 
Sebastian Ramacher
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