lnav: fix cross from glibc host on 64bit targets

srcpkgs/lnav/patches/fix-cross.patch

@@ -0,0 +1,29 @@
+diff --git a/configure.ac b/configure.ac
+index ab74fb7..a57315e 100644
+--- configure.ac
++++ configure.ac
+@@ -10,23 +10,6 @@ AC_CANONICAL_HOST
+ 
+ AX_CXX_COMPILE_STDCXX_14([noext], [mandatory])
+ 
+-for defdir in /opt/local /usr/local /usr /; do
+-    if test -d "$defdir/include"; then
+-        CPPFLAGS="$CPPFLAGS -I$defdir/include"
+-    fi
+-
+-    if test -d "$defdir/lib64"; then
+-        LDFLAGS="$LDFLAGS -L$defdir/lib64"
+-    fi
+-    if test -d "$defdir/lib"; then
+-        LDFLAGS="$LDFLAGS -L$defdir/lib"
+-    fi
+-
+-    if test -d "$defdir/lib/x86_64-linux-gnu"; then
+-        LDFLAGS="$LDFLAGS -L$defdir/lib/x86_64-linux-gnu"
+-    fi
+-done
+-
+ dnl abssrcdir is the absolute path to the source base (regardless of where
+ dnl you are building it)
+ AS_CASE([x$srcdir],
+