Stripping symbols from a static library archive overcoming the error: "strip.exe: cannot create tempdir for archive copying (error: File exists)", when the library contains more than a few object files. The problem is in mktemp("stXXXXXX") which is able to create only 26 unique filenames on the MinGW system "mingw32_4.9.2-posix-sjlj-rt_v3-rev1"

strip_lib.sh

#!/bin/bash

if [ $# -lt 2 ]; then
	echo "Usage: $0 LIB_IN LIB_OUT STRIP_PARAMS"
	echo "Example: $0 mylib_debug.a mylib_release.a --strip-debug"
fi

LIB_IN="$1"; shift;
LIB_OUT="$1"; shift;
LIB_IN="`realpath "$LIB_IN"`"
LIB_OUT="`realpath "$LIB_OUT"`"
echo "strip params: $@"

if [ -e "$LIB_OUT" ]; then
	echo "ERROR: output library exists"
	exit 1
fi

TMP_DIR="`mktemp -d`"
cd $TMP_DIR
ar x "$LIB_IN"
mkdir stripped
for i in *.o; do
	strip $@ -o stripped/$i $i
done
cd stripped
ar rs "$LIB_OUT" *.o

cd
rm -r $TMP_DIR