Package: src:gnat-4.9
Followup-For: Bug #759407
Svante's suggestion seems to work for the binutils package: it
installs /usr/lib/i486* symlinks to make the /usr/lib/i586* tools
visible to callers.
A bootstrap issue will remain: building a new gnat-4.9 package
installing these symlinks requires a working compiler.
In case this helps finding a better solution:
-- Where does gcc search for gnat1?
gcc-4.9-source/gcc_tarball/gcc/gcc.c searches gnat1 in
static const char *spec_machine = DEFAULT_TARGET_MACHINE;
gcc-4.9-source/gcc_tarball/gcc/Makefile.in sets DEFAULT_TARGET_MACHINE
from @target_noncanonical@.
gcc-4.9-source/gcc_tarball/gcc/configure.ac calls
ACX_NONCANONICAL_TARGET in config/acx.m4, which set
target_noncanonical from $target_alias or $host_noncanonical if blank.
gcc-4.9-source/gcc_tarball/debian/rules2 sets in CONFARGS
--build=$(DEB_BUILD_GNU_TYPE)
--host=$(DEB_HOST_GNU_TYPE)
--target=$(TARGET_ALIAS)
-- Where is gnat1 actually installed?
gnat-4.9/debian/rules.d/binary-ada.mk installs gnat1 under
../$(gcc_lexec_dir)/...
gnat-4.9/debian/rules2 sets gcc_lexec_dir to ../$(TARGET_ALIAS)/..
-- Common part. The commented stanzas seem to show that a similar
problem has been encountered in the past.
gnat-4.9/debian/rules.defs:
ifeq ($(DEB_CROSS),yes)
DEB_TARGET_ALIAS ?= $(DEB_TARGET_GNU_TYPE)
TARGET_ALIAS := $(DEB_TARGET_ALIAS)
else
TARGET_ALIAS := $(DEB_TARGET_GNU_TYPE)
ifeq ($(TARGET_ALIAS),i386-gnu)
TARGET_ALIAS := i586-gnu
endif
#ifeq ($(TARGET_ALIAS),i486-linux-gnu)
# TARGET_ALIAS := i686-linux-gnu
#endif
TARGET_ALIAS := $(subst i386,i486,$(TARGET_ALIAS))
# configure as linux-gnu, not linux
#ifeq ($(findstring linux,$(TARGET_ALIAS))/$(findstring
linux-gnu,$(TARGET_ALIAS)),linux/)
# TARGET_ALIAS := $(TARGET_ALIAS)-gnu
#endif
# configure as linux, not linux-gnu
#TARGET_ALIAS := $(subst linux-gnu,linux,$(TARGET_ALIAS))
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