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build-sys: introduce a special build flag to explicitly disables running from build tree

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It is helpful to improve reproducibility build [1] since
PA_SRCDIR/PA_BUILDDIR contains build path,
--disable-running-from-build-tree could drop these macros at
precompilation.

[1] https://reproducible-builds.org/

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
This commit is contained in:
Hongxu Jia 2018-12-07 15:48:49 +08:00 • committed by Tanu Kaskinen
parent bae8c16bfa
commit 3d9deb1e56
7 changed files with 29 additions and 5 deletions
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2
src/modules/gsettings/module-gsettings.c
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@ -51,7 +51,7 @@ int pa__init(pa_module*m) {
u->buf_fill = 0;
if ((u->fd = pa_start_child_for_read(
#if defined(__linux__) && !defined(__OPTIMIZE__)
#if defined(__linux__) && defined(HAVE_RUNNING_FROM_BUILD_TREE)
pa_run_from_build_tree() ? PA_BUILDDIR "/gsettings-helper" :
#endif
PA_GSETTINGS_HELPER, NULL, &u->pid)) < 0)