remove bashism.

diff --git a/configure.ac b/configure.ac
index c584725a574d6631f262335e3e4da866ba054f62..b38024057d7a06cd070358bdadcb865fd3a53c73 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -353,7 +353,7 @@ fi
 AM_CONDITIONAL(ENABLE_TROUSERS, test "$with_tpm" != "no")
 
 LIBOPTS_CHECK([src/libopts])
-if test "$NEED_LIBOPTS_DIR" == "true";then
+if test "$NEED_LIBOPTS_DIR" = "true";then
        dnl delete libopts-generated files
        for i in ${srcdir}/src/*-args.c.bak ${srcdir}/src/*-args.h.bak; do
                nam=`echo $i|sed 's/.bak//g'`