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build: pass -dead_strip_dylibs to ld on macOS

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This strips some unused dylibs from bitcoin-qt.

From man ld:
Remove dylibs that are unreachable by the entry point or exported symbols. 
That is, suppresses the generation of load command commands for dylibs 
which supplied no symbols during the link. This option should not be 
used when linking against a dylib which is required at runtime for 
some indirect reason such as the dylib has an important initializer.
This commit is contained in:
fanquake 2019-12-03 17:45:55 -05:00
parent 5aee0e2163
commit ba0cad2702
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configure.ac
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@ -783,6 +783,7 @@ fi
dnl this flag screws up non-darwin gcc even when the check fails. special-case it.
if test x$TARGET_OS = xdarwin; then
AX_CHECK_LINK_FLAG([[-Wl,-dead_strip]], [LDFLAGS="$LDFLAGS -Wl,-dead_strip"])
AX_CHECK_LINK_FLAG([[-Wl,-dead_strip_dylibs]], [LDFLAGS="$LDFLAGS -Wl,-dead_strip_dylibs"])
fi
AC_CHECK_HEADERS([endian.h sys/endian.h byteswap.h stdio.h stdlib.h unistd.h strings.h sys/types.h sys/stat.h sys/select.h sys/prctl.h sys/sysctl.h vm/vm_param.h sys/vmmeter.h sys/resources.h])