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https://github.com/libunwind/libunwind/commit/bfc0d618f72ba4b725c3735188e0a6d8c710411c
From bfc0d618f72ba4b725c3735188e0a6d8c710411c Mon Sep 17 00:00:00 2001
From: Stephen Webb <stephen.webb@bregmasoft.ca>
Date: Tue, 9 Sep 2025 10:18:21 -0400
Subject: [PATCH] Fix stray `-lc` in configure
When configure is run with --enable-cxx-exceptions a stray `-lc` has
wandered into the execution path. While it doesn't hurt anything if
gives a disturbing error message.
---
configure.ac | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/configure.ac b/configure.ac
index 63d12ac02..9e79558ca 100644
--- a/configure.ac
+++ b/configure.ac
@@ -306,10 +306,12 @@ AM_CONDITIONAL([SUPPORT_CXX_EXCEPTIONS], [test x$enable_cxx_exceptions = xyes])
AM_COND_IF([SUPPORT_CXX_EXCEPTIONS],
[save_LDFLAGS="$LDFLAGS"
LDFLAGS="${LDFLAGS} -nostdlib"
- AC_SEARCH_LIBS([_Unwind_Resume], [gcc_s gcc],
+ AC_SEARCH_LIBS([_Unwind_Resume],
+ [gcc_s gcc],
[AS_IF([test "$ac_cv_search__Unwind_Resume" != "none required"],
[AC_SUBST([UNW_CRT_LIBADD], ["-lc $ac_cv_search__Unwind_Resume"])
- AC_SUBST([UNW_CRT_LDFLAGS], ["-WCClinker -nostdlib"])])]
+ AC_SUBST([UNW_CRT_LDFLAGS], ["-WCClinker -nostdlib"])])
+ ],,
[-lc])
LDFLAGS="$save_LDFLAGS"]
)
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