[Buildroot] [PATCH 1/1] package/boost: add option to force static build

[Paul Cercueil <paul@crapouillou.net>]

This option can be useful when building for a system that
needs to somewhat maintain compatibility with previously built
software, as Boost is notorious for breaking ABI at every
single release.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
 package/boost/Config.in | 11 +++++++++++
 package/boost/boost.mk  |  2 +-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/package/boost/Config.in b/package/boost/Config.in
index b99b01f22e..60eb83ff4c 100644
--- a/package/boost/Config.in
+++ b/package/boost/Config.in
@@ -16,6 +16,17 @@ config BR2_PACKAGE_BOOST
 
 if BR2_PACKAGE_BOOST
 
+config BR2_PACKAGE_BOOST_STATIC
+	bool "Build static libraries"
+	depends on BR2_SHARED_LIBS
+	help
+	  Build static Boost libraries.
+
+	  This option can be useful when building for a system that
+	  needs to somewhat maintain compatibility with previously built
+	  software, as Boost is notorious for breaking ABI at every
+	  single release.
+
 config BR2_PACKAGE_BOOST_ATOMIC
 	bool "boost-atomic"
 	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
diff --git a/package/boost/boost.mk b/package/boost/boost.mk
index f6e9a03220..162277b968 100644
--- a/package/boost/boost.mk
+++ b/package/boost/boost.mk
@@ -109,7 +109,7 @@ endif
 
 # By default, Boost build and installs both the shared and static
 # variants. Override that if we want static only or shared only.
-ifeq ($(BR2_STATIC_LIBS),y)
+ifeq ($(BR2_STATIC_LIBS)$(BR2_PACKAGE_BOOST_STATIC),y)
 BOOST_OPTS += link=static runtime-link=static
 else ifeq ($(BR2_SHARED_LIBS),y)
 BOOST_OPTS += link=shared runtime-link=shared
-- 
2.35.1

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