31 lines
1.6 KiB
Bash
31 lines
1.6 KiB
Bash
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#!/usr/bin/env bash
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# krb5: --with-system-ss, and Ubuntu ships no ss headers.
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#
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# checking whether system ss package works... configure: error: cannot run
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# test program
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#
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# THE TRAP is that message. "cannot run test program" reads like a broken
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# cross-compile or a missing loader -- the kind of thing that sends you into
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# config.log looking for a link failure on this architecture. It is neither.
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# The subsystem library (ss, from e2fsprogs) has no development package on
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# Ubuntu at all: libss2 is runtime-only, libss-dev does not exist, and
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# e2fslibs-dev has no candidate. There is no ss.h to compile against, so the
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# test program cannot be built, let alone run.
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#
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# Note what IS present, so the two are not confused: --with-system-et works,
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# because comerr-dev ships /usr/include/et/com_err.h. Only ss is missing.
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#
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# krb5 carries its own copy of the subsystem library and uses it when not told
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# otherwise, so dropping the flag costs nothing but a slightly larger binary.
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# Building e2fsprogs to supply one header would be the other answer; it is not
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# worth a package in the closure, and TODO.md records the choice.
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set -euo pipefail
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grep -qE '^\s+--with-system-ss \\$' PKGBUILD || {
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echo "krb5: --with-system-ss line not in the expected form" >&2; exit 1; }
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[ "$(grep -c -- '--with-system-ss' PKGBUILD)" = 1 ] || {
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echo "krb5: expected exactly one --with-system-ss" >&2; exit 1; }
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sed -i '/^\s\+--with-system-ss \\$/d' PKGBUILD
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grep -q -- '--with-system-ss' PKGBUILD && {
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echo "krb5: --with-system-ss survived" >&2; exit 1; }
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echo "krb5: uses its bundled ss (Ubuntu has no ss development package)"
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