Open
Description
Hi,
When building webkitgtk with elogind support (with headers from elogind made available via e.g.:
;; XXX: WebKitGTK makes use of elogind's systemd-compatible
;; headers, which are under the include/elogind prefix. The WTF
;; component doesn't propagate the Journald header correctly
;; detected (stubs from elogind), hence the following hack (see:
;; https://bugs.webkit.org/show_bug.cgi?id=254495).
(string-append "-DCMAKE_CXX_FLAGS=-I"
(search-input-directory
%build-inputs "include/elogind"))There are warnings in the build:
In file included from /gnu/store/dadk3wkrfbwmy3migsr81qiayv84rkii-elogind-255.17/include/elogind/systemd/sd-id128.h:24,
from /gnu/store/dadk3wkrfbwmy3migsr81qiayv84rkii-elogind-255.17/include/elogind/systemd/sd-journal.h:26,
from /tmp/guix-build-webkitgtk-2.49.1.drv-0/build/WTF/Headers/wtf/Assertions.h:60,
from /tmp/guix-build-webkitgtk-2.49.1.drv-0/build/WTF/Headers/wtf/MallocCommon.h:28,
from /tmp/guix-build-webkitgtk-2.49.1.drv-0/build/WTF/Headers/wtf/FastMalloc.h:26,
from /tmp/guix-build-webkitgtk-2.49.1.drv-0/webkitgtk-2.49.1/Source/WebCore/config.h:47,
from /tmp/guix-build-webkitgtk-2.49.1.drv-0/webkitgtk-2.49.1/Source/WebCore/platform/graphics/texmap/coordinated/CoordinatedBackingStore.cpp:20:
/gnu/store/dadk3wkrfbwmy3migsr81qiayv84rkii-elogind-255.17/include/elogind/systemd/_sd-common.h:92:7: warning: "__STDC_VERSION__" is not defined, evaluates to 0 [-Wundef]
92 | # if __STDC_VERSION__ >= 199901L && !defined(__cplusplus)
| ^~~~~~~~~~~~~~~~
It looks like some macro __STDC_VERSION__ is expected to be defined but isn't. Perhaps we should set it to 0 to avoid the warning?