From: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Date: Wed, 12 Apr 2023 18:53:37 +0000 (-0400)
Subject: Build fix: common: eventfd only exists on Linux
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=f053e8372b4870e88b9eacf63a69c32c0c878aea;p=lttng-tools.git

Build fix: common: eventfd only exists on Linux

The project fails to build on non-Linux platforms since eventfd is a
Linux-exclusive facility.

From the project's point of view, the eventfd util belongs in libcommon.
However, we will need to write a wrapper if it ends up being used on
non-Linux platform.

For the moment, exclude it from the internal libcommon sources when
building on non-Linux platforms as it is only used on the session
daemon.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Change-Id: If528ac522d72a95e87a4f496531ea679a81030a2
---

diff --git a/src/common/Makefile.am b/src/common/Makefile.am
index e04b38347..2b6e06864 100644
--- a/src/common/Makefile.am
+++ b/src/common/Makefile.am
@@ -73,7 +73,6 @@ libcommon_lgpl_la_SOURCES = \
 	error-query.cpp \
 	evaluation.cpp \
 	event.cpp \
-	eventfd.hpp eventfd.cpp \
 	event-expr/event-expr.cpp \
 	event-field-value.cpp \
 	event-rule/event-rule.cpp \
@@ -120,6 +119,10 @@ libcommon_lgpl_la_SOURCES = \
 	urcu.hpp \
 	utils.cpp utils.hpp
 
+if IS_LINUX
+libcommon_lgpl_la_SOURCES += eventfd.cpp eventfd.hpp
+endif
+
 if HAVE_ELF_H
 libcommon_lgpl_la_SOURCES += \
 	lttng-elf.cpp lttng-elf.hpp