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Date: Wed, 15 Mar 2017 22:22:06 -0700
From: Khem Raj <raj.khem@...il.com>
To: musl@...ts.openwall.com
Cc: Khem Raj <raj.khem@...il.com>
Subject: [PATCH 1/2] configure: Use -print-libgcc-file-name to detect compiler runtime
This uses compiler to provide the path to its default runtime
library libgcc/compiler-rt, when using clang we can set
CC="clang --rtlib={compiler-rt|libgcc}" and it will find
the right compiler runtime when autodetecting it
Signed-off-by: Khem Raj <raj.khem@...il.com>
---
configure | 2 ++
1 file changed, 2 insertions(+)
diff --git a/configure b/configure
index c2db298c..0c670dd8 100755
--- a/configure
+++ b/configure
@@ -587,6 +587,8 @@ tryldflag LDFLAGS_AUTO -Wl,--exclude-libs=ALL
tryldflag LDFLAGS_AUTO -Wl,-Bsymbolic-functions
# Find compiler runtime library
+test -z "$LIBCC" && try_libcc=`$CC -print-libgcc-file-name 2>/dev/null` \
+ && tryldflag LIBCC "$try_libcc"
test -z "$LIBCC" && tryldflag LIBCC -lgcc && tryldflag LIBCC -lgcc_eh
test -z "$LIBCC" && tryldflag LIBCC -lcompiler_rt
test -z "$LIBCC" && try_libcc=`$CC -print-file-name=libpcc.a 2>/dev/null` \
--
2.12.0
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