[gentoo-dev] [PATCH eutils] prune_libtool_files: do not remove non-libtool .la files.

[Michał Górny]

Let's assume that all libtool files have a consistent format and contain
a line stating 'shouldnotlink=(yes|no)'. We use that to distinguish
modules from libraries, so we can as well use it to validate the .la
file to avoid removing non-libtool .la files.

This should also make the big 'if' a bit more readable.

Note: this is '-w' patch, since a large block of code was reindented.

Fixes: https://bugs.gentoo.org/show_bug.cgi?id=468380
---
gx86/eclass/eutils.eclass | 19 ++++++++++++++-----
1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/gx86/eclass/eutils.eclass b/gx86/eclass/eutils.eclass
index 04e99e3..db5aa18 100644
--- a/gx86/eclass/eutils.eclass
+++ b/gx86/eclass/eutils.eclass
@@ -1458,11 +1458,12 @@ prune_libtool_files() {
local archivefile=${f/%.la/.a}

[[ ${f} != ${archivefile} ]] || die 'regex sanity check failed'
-
local reason pkgconfig_scanned
+ local snotlink=$(sed -n -e 's:^shouldnotlink=::p' "${f}")
+
+ if [[ ${snotlink} == yes ]]; then

# Remove static libs we're not supposed to link against.
- if grep -q '^shouldnotlink=yes$' "${f}"; then
if [[ -f ${archivefile} ]]; then
einfo "Removing unnecessary ${archivefile#${D%/}} (static plugin)"
queue+=( "${archivefile}" )
@@ -1474,13 +1475,19 @@ prune_libtool_files() {
reason='module'
fi

+ elif [[ ${snotlink} == no ]]; then
+
+ # A valid .la file must have a valid 'shouldnotlink='.
+ # That assumption helps us avoid removing random files
+ # which match '*.la', see bug #468380.
+
# Remove .la files when:
# - user explicitly wants us to remove all .la files,
# - respective static archive doesn't exist,
# - they are covered by a .pc file already,
# - they don't provide any new information (no libs & no flags).

- elif [[ ${removing_all} ]]; then
+ if [[ ${removing_all} ]]; then
reason='requested'
elif [[ ! -f ${archivefile} ]]; then
reason='no static archive'
@@ -1526,10 +1533,12 @@ prune_libtool_files() {
fi

pkgconfig_scanned=1
- fi
+ fi # pkgconfig_scanned

has "${f##*/}" "${pc_libs[@]}" && reason='covered by .pc'
- fi
+ fi # removal due to .pc
+
+ fi # shouldnotlink==no

if [[ ${reason} ]]; then
einfo "Removing unnecessary ${f#${D%/}} (${reason})"
--
1.8.2.1

[Michał Górny]

On Fri, 3 May 2013 17:54:36 +0200
Michał Górny <mgo...@gentoo.org> wrote:

> Let's assume that all libtool files have a consistent format and contain
> a line stating 'shouldnotlink=(yes|no)'. We use that to distinguish
> modules from libraries, so we can as well use it to validate the .la
> file to avoid removing non-libtool .la files.

I've committed the patch.

--
Best regards,
Michał Górny