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doc: Better explain GNU ld's dislike of ld64's options

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There's also now more than a single option being special cased for
darwin.
This commit is contained in:
fanquake
2020-04-27 10:54:13 +08:00
parent eef90c14ed
commit cd24f37ea9
1 changed files with 3 additions and 1 deletions
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4
configure.ac
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@ -757,7 +757,9 @@ if test x$use_hardening != xno; then
esac esac
fi fi
dnl this flag screws up non-darwin gcc even when the check fails. special-case it. dnl These flags are specific to ld64, and may cause issues with other linkers.
dnl For example: GNU ld will intepret -dead_strip as -de and then try and use
dnl "ad_strip" as the symbol for the entry point.
if test x$TARGET_OS = xdarwin; then 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]], [LDFLAGS="$LDFLAGS -Wl,-dead_strip"])
AX_CHECK_LINK_FLAG([[-Wl,-dead_strip_dylibs]], [LDFLAGS="$LDFLAGS -Wl,-dead_strip_dylibs"]) AX_CHECK_LINK_FLAG([[-Wl,-dead_strip_dylibs]], [LDFLAGS="$LDFLAGS -Wl,-dead_strip_dylibs"])