Remove bashism

* `==` only works in bash, whereas a shell like
  dash is significantly faster for running the
  configure script.

diff --git a/configure.ac b/configure.ac
index 0bceb48a3be197bd84f5c227ddf4de748f48bd2a..8f8bedc09e0b5536dc15b6103a7a0a58edcabc56 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -317,7 +317,7 @@ AC_C_INLINE
 dnl ===========================================================================
 dnl Set GCC compiler flags
 
-if [test "${GCC}" == "yes"]
+if [ test "${GCC}" = "yes" ]
 then
   # Enable common warnings flags
   CFLAGS="${CFLAGS} -Wall"