${x//y/} is a bash syntax. Replace with something dash compatible
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RP 2015/5/3
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Upstream-Status: Pending
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Index: DirectFB-1.7.7/configure.in
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===================================================================
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--- DirectFB-1.7.7.orig/configure.in
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+++ DirectFB-1.7.7/configure.in
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@@ -2696,7 +2696,7 @@ AM_CONDITIONAL(BUILD_TOOLS, test "$with_
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AM_CONDITIONAL(CROSS_COMPILING, test "$cross_compiling" = "yes")
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CFLAGS="$CFLAGS $DFB_INTERNAL_CFLAGS"
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-CXXFLAGS="$CXXFLAGS ${CFLAGS//-Werror-implicit-function-declaration/}"
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+CXXFLAGS="$CXXFLAGS $(printf '%s\n' "$CFLAGS" | sed 's/-Werror-implicit-function-declaration//g')"
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DFB_LDFLAGS="$LDFLAGS $ZLIB_LIBS"
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CFLAGS="$CFLAGS $CFLAGS_STD"
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