https://bugs.kde.org/show_bug.cgi?id=424483
Bug ID: 424483
Summary: Build errors if PREFIX is different from ECM's PREFIX
Product: frameworks-plasma
Version: 5.70.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: libplasmaquick
Assignee: notm...@gmail.com
Reporter: h.goe...@crazy-compilers.com
CC: plasma-b...@kde.org
Target Milestone: ---
When plasma-framework and extra-cmake-modules reside in different prefixes,
building packages depending on PlasmaQuick fails with
File or directory
/gnu/store/…-extra-cmake-modules-5.70.0/include/KF5
referenced by variable PlasmaQuick_INCLUDE_DIR does not exist !
"/gnu/store/…-extra-cmake-modules-5.70.0" is the of PREFIX of ECM - and
obviously PlasmaQuick_INCLUDE_DIR should not point there but to the PREFIX of
plasma-framework.
STEPS TO REPRODUCE
====================
1. Ensure you have guile 3.x and guile-gcrypt installed.
If these are not availalbe for you distribution, a quick way to get them is
by installing guix:
a. Install guix alongside your distribution (this can be remove easily
later)
<http://guix.gnu.org/manual/en/html_node/Installation.html#Installation>
When using the supplied isntaller-script, this is a matter of a
few minutes.
2. Clone and build guix:
git clone https://gitlab.digitalcourage.de:htgoebel/guix.git
cd guix
git checkout kde-plasma-bug # <<--- important
./bootstrap
./configure --localstatedir=/var
make scripts/guix make-go
3. Try to build `kscreen`:
./pre-inst-env guix build kscreen
OBSERVED RESULT
====================
Build/configure fails with the messae above.
EXPECTED RESULT
====================
Build/configure passes.
SOFTWARE/OS VERSIONS
====================
plasma-framwork 5.70.1
kscreen 5.70.1
ADDITIONAL INFORMATION
=========================
(1) PlasmaQuick_INCLUDE_DIR is based on PACKAGE_PREFIX_DIR (see
KF5PlasmaQuickConfig.cmake). Within KF5PlasmaQuickConfig.cmake,
PACKAGE_PREFIX_DIR is okay up to the call of `find_dependency(KF5Plasma
"5.70.0")`. After this call, PACKAGE_PREFIX_DIR points to extra-cmake-modules.
(2) I was able to inhibit this change by removing the call to
`"(find_package(ECM …)` in KF5PlasmaMacros.cmake.
(3) The repo mentioned above already contains some package definitions to help
debugging and playing around:
* the relevant file is gnu/packages/kde-plasma.scm
* around line 610 there a copy of KF5PlasmaQuickMacros.cmake is provided
which you can easily play with. Tracing PACKAGE_PREFIX_DIR is
already in there.
* around line 600 there is code prepared for removing the
`find_pachage(ECM …)`
(4.1) Seems like `find_pachage(ECM …)` is required to set ECM_KDE_MODULE_DIR
(see KF5PlasmaMacros.cmake). Within all KDE-framework packages
ECM_KDE_MODULE_DIR is only used in to cmake-files:
- KF5Package/KF5PackageMacros.cmake
- KF5Plasma/KF5PlasmaMacros.cmake
$ grep -rh ECM_KDE_MODULE_DIR /gnu/store/*/lib/cmake/ | sort -u
include(${ECM_KDE_MODULE_DIR}/KDEInstallDirs.cmake)
$ grep -rl ECM_KDE_MODULE_DIR /gnu/store/*/lib/cmake/ | sed
's!.*/lib/cmake/!!' | sort -u
KF5Package/KF5PackageMacros.cmake
KF5Plasma/KF5PlasmaMacros.cmake
(4.2) ECM_KDE_MODULE_DIR is only used in
`include(${ECM_KDE_MODULE_DIR}/KDEInstallDirs.cmake)`, which also is only used
in these two cmake files.
$ grep -rh KDEInstallDirs.cmake /gnu/store/*/lib/cmake/ | sort -u
include(${ECM_KDE_MODULE_DIR}/KDEInstallDirs.cmake)
$ grep -rl KDEInstallDirs.cmake /gnu/store/*/lib/cmake/ | sed
's!.*/lib/cmake/!!' | sort -u
KF5Package/KF5PackageMacros.cmake
KF5Plasma/KF5PlasmaMacros.cmake
(4.3) Maybe these are left-overs and can be removed?
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