X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=configure.ac;h=a089c9aaa6d8ef6f73f16d7be054564f8709e6cc;hb=0f33aaef545e7289a02dc8115b282b24bb16fc27;hp=c5089f1db4ee3132f59f6ca2bcf2e5ffd0e5b181;hpb=27272a704d4017ff4abc1c840a221a3f62d1f346;p=libsigrok.git

diff --git a/configure.ac b/configure.ac
index c5089f1d..a089c9aa 100644
--- a/configure.ac
+++ b/configure.ac
@@ -174,6 +174,18 @@ AM_CONDITIONAL([NEED_RPC], [test "x$sr_cv_have_rpc" = xyes])
 # Check for compiler support of 128 bit integers
 AC_CHECK_TYPES([__int128_t, __uint128_t], [], [], [])
 
+# Linker flag to retain the objects of a static lib that are not referenced
+AX_CHECK_LINK_FLAG([-Wl,--whole-archive -Wl,--no-whole-archive],
+                   [SR_LINK_BEFORE_LIB=-Wl,--whole-archive
+                    SR_LINK_AFTER_LIB=-Wl,--no-whole-archive], [
+AX_CHECK_LINK_FLAG([-Wl,-force_load],
+                   [SR_LINK_BEFORE_LIB=-Wl,-force_load
+                    SR_LINK_AFTER_LIB=],
+                   [SR_LINK_BEFORE_LIB=
+                    SR_LINK_AFTER_LIB=])])
+AC_SUBST(SR_LINK_BEFORE_LIB)
+AC_SUBST(SR_LINK_AFTER_LIB)
+
 ########################
 ##  Hardware drivers  ##
 ########################