[gexiv2] Remove linker flags from CXXFLAGS

[Jens Georg <jensgeorg src gnome org>]

commit 8169ca384f366696f07fd3bd7e8e98eea0b0035e
Author: Jens Georg <mail jensge org>
Date:   Sun Jul 17 12:43:23 2016 +0200

    Remove linker flags from CXXFLAGS
    
    clang doesn't like them and g++ doesn't need them
    
    Signed-off-by: Jens Georg <mail jensge org>

 Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 38fe1e2..79a34b7 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -90,7 +90,7 @@ endif
 
 # REQUIRED_CFLAGS absolutely get appended to CFLAGS, whatever the
 # the value of CFLAGS in the environment.
-REQUIRED_CXXFLAGS=-Wl,-lstdc++
+REQUIRED_CXXFLAGS=
 
 # Because -fPIC can interfere with compilation on 32-bit platforms but
 # is absolutely necessary for AMD64, we check what the target machine's