Source: dash Version: 0.5.12-6 User: debian-cr...@lists.debian.org Usertags: ftcbfs X-Debbugs-Cc: debian-...@lists.debian.org
Hi arm people and Andrej, this is one of those PAC/BTI "induced" cross build failures. Don't get me wrong. This problem has always been there. The PAC/BTI work just makes the bug visible. Still, this is now making quite a lot of packages failing to cross build. Help appreciated. Fundamentally, the host compiler flags and -mbranch-protection=standard leak into a build architecture compiler invocation and that compiler fails to understand the flag. Often times, we can get away with deleting compiler flags from build architecture compiler invocations, but dpkg also supports emitting CFLAGS_FOR_BUILD and friends. So here is a patch for dash that adds CFLAGS_FOR_BUILD support and thus solves this instance. I think there are many more of this and appreciate help with fixing them. Thanks in advance. Helmut
--- dash-0.5.12.orig/configure.ac +++ dash-0.5.12/configure.ac @@ -15,11 +15,17 @@ AC_MSG_CHECKING([for build system compiler]) if test "$cross_compiling" = yes; then CC_FOR_BUILD=${CC_FOR_BUILD-cc} + CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-} + CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-} else CC_FOR_BUILD=${CC} + CFLAGS_FOR_BUILD=${CFLAGS} + CPPFLAGS_FOR_BUILD=${CPPFLAGS} fi AC_MSG_RESULT(${CC_FOR_BUILD}) AC_SUBST(CC_FOR_BUILD) +AC_SUBST(CFLAGS_FOR_BUILD) +AC_SUBST(CPPFLAGS_FOR_BUILD) AC_MSG_CHECKING([for __attribute__((__alias__()))]) dash_cv_have_attribute_alias=no --- dash-0.5.12.orig/src/Makefile.am +++ dash-0.5.12/src/Makefile.am @@ -12,7 +12,7 @@ COMPILE_FOR_BUILD = \ $(CC_FOR_BUILD) $(DEFAULT_INCLUDES) $(AM_CPPFLAGS_FOR_BUILD) \ $(CPPFLAGS_FOR_BUILD) \ - $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) \ + $(LDFLAGS) \ $(AM_CFLAGS_FOR_BUILD) $(CFLAGS_FOR_BUILD) bin_PROGRAMS = dash