Package: libffcall1-dev Version: 1.10+cvs20100619-4 Severity: serious Control: affects -1 src:mlpcap
mlpcap FTBFS on ppc64el: https://buildd.debian.org/status/fetch.php?pkg=mlpcap&arch=ppc64el&ver=0.9-17&stamp=1502205676&raw=0 ... checking for alloc_trampoline_r in -lcallback... no configure: error: can't find callback library. /usr/share/cdbs/1/class/autotools.mk:44: recipe for target 'debian/stamp-autotools' failed make: *** [debian/stamp-autotools] Error 1 dpkg-buildpackage: error: debian/rules build-arch gave error exit status 2 The root problem is: (sid_ppc64el-dchroot)bunk@plummer:~/build$ cat test.c char alloc_trampoline_r(); int main() { return alloc_trampoline_r(); } (sid_ppc64el-dchroot)bunk@plummer:~/build$ gcc -O2 -Wall test.c -lcallback /usr/lib/gcc/powerpc64le-linux-gnu/7/../../../powerpc64le-linux-gnu/libcallback.so: undefined reference to `tramp_r' collect2: error: ld returned 1 exit status (sid_ppc64el-dchroot)bunk@plummer:~/build$ The same works on amd64. autoconf uses a dummy (and in this case incorrect) prototype in AC_CHECK_LIB checks. The bug is the link error, after successful linking it is not expected that the resulting binary built from this testcase works.
