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| author | Tijl Coosemans <tijl@FreeBSD.org> | 2014-04-23 13:25:16 +0000 |
|---|---|---|
| committer | Tijl Coosemans <tijl@FreeBSD.org> | 2014-04-23 13:25:16 +0000 |
| commit | aad09bc5e23eb75a7a865a8b0002fbc6e13d4659 (patch) | |
| tree | 69c07cdc4812f0f8be0cc44c38513f540c058778 /CHANGES | |
| parent | 5c818b158c5b9479669f8322b4da8c48f5c30ef9 (diff) | |
| download | ports-aad09bc5e23eb75a7a865a8b0002fbc6e13d4659.tar.gz ports-aad09bc5e23eb75a7a865a8b0002fbc6e13d4659.zip | |
When linking a library libA with a library libB using libtool, if libB.la
exists, libtool will add all libraries libB.la refers to (dependency_libs
field) to the linker command line and store them in the dependency_libs
field of libA.la. So everything that subsequently links with libA will also
link to these extra libraries. This causes too much overlinking.
This commit modifies Mk/Uses/libtool.mk so it empties the dependency_libs
field in .la libraries during staging. However, because .la libraries have
very limited use when dependency_libs is empty it makes sense to completely
remove them during staging.
So with this commit USES=libtool is modified to remove .la libraries and a
new form (USES=libtool:keepla) is introduced in case they need to be kept
(dependency_libs is still emptied).
PORTREVISION is bumped on all ports with USES=libtool that install .la
libraries. Most ports are also changed to add :keepla because .la
libraries have to be kept around as long as there are dependent ports with
.la libraries that refer to them in their dependency_libs field. In most
cases :keepla can be removed again as soon as all dependent ports that
install .la libraries have some form of USES=libtool added to their
Makefile.
PR: ports/188759
Exp-run: bdrewery
Approved by: portmgr (bdrewery)
Notes
Notes:
svn path=/head/; revision=351936
Diffstat (limited to 'CHANGES')
| -rw-r--r-- | CHANGES | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -10,6 +10,18 @@ in the release notes and/or placed into UPDATING. All ports committers are allowed to commit to this file. +20140423: +AUTHOR: tijl@FreeBSD.org + + The semantics of USES=libtool have changed. It now deletes .la libraries + from the staging area to reduce overlinking. USES=libtool:keepla can be + used in case they need to be kept. This form still modifies .la libraries + to remove references to other libraries to reduce overlinking. + + Note that .la libraries have to kept around as long as there are .la + libraries from other ports that refer to them. Those ports need to use + some form of USES=libtool first such that those references are removed. + 20140419: AUTHOR: bdrewery@FreeBSD.org |