configure: Force -static-libgcc when using libunwind.

libunwind defines the same symbols as libgcc_s but may not be compatible. Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49312Signed-off-by: Alexandre Julliard <julliard@winehq.org>

configure: Force -static-libgcc when using libunwind.
167f188d · Alexandre Julliard · 35c880ef · 167f188d · 167f188d
Commit 167f188d authored Dec 10, 2020 by Alexandre Julliard
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configure configure +1 -0

configure.ac configure.ac +2 -0

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--- a/configure
+++ b/configure
@@ -14892,6 +14892,7 @@ $as_echo "$wine_cv_have_unw_step" >&6; }
        if test "$wine_cv_have_unw_step" = no -a -n "$UNWIND_LIBS"
        then
            save_libs=$LIBS
+                        UNWIND_LIBS="-static-libgcc $UNWIND_LIBS"
            LIBS="$UNWIND_LIBS $LIBS"
            { $as_echo "$as_me:${as_lineno-$LINENO}: checking for unw_step in libunwind" >&5
 $as_echo_n "checking for unw_step in libunwind... " >&6; }

--- a/configure.ac
+++ b/configure.ac
@@ -1685,6 +1685,8 @@ then
        if test "$wine_cv_have_unw_step" = no -a -n "$UNWIND_LIBS"
        then
            save_libs=$LIBS
+            dnl Force static libgcc, libunwind breaks libgcc_s unwinding
+            UNWIND_LIBS="-static-libgcc $UNWIND_LIBS"
            LIBS="$UNWIND_LIBS $LIBS"
            AC_CACHE_CHECK([for unw_step in libunwind],wine_cv_have_libunwind_unw_step,
               [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#define UNW_LOCAL_ONLY