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Message-Id: <20170316052207.32412-1-raj.khem@gmail.com>
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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