[pygobject] test(1) uses '=' to test if strings are identical

[Martin Pitt <martinpitt src gnome org>]

commit 1d23d8006be98b77a0134fddd23b76df05e489fa
Author: Patrick Welche <prlw1 cam ac uk>
Date:   Tue Feb 7 11:49:58 2012 +0000

    test(1) uses '=' to test if strings are identical
    
    https://bugzilla.gnome.org/show_bug.cgi?id=669598

 m4/python.m4 |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/m4/python.m4 b/m4/python.m4
index 7c90275..3cfb9e2 100644
--- a/m4/python.m4
+++ b/m4/python.m4
@@ -43,7 +43,7 @@ AC_DEFUN([AM_CHECK_PYTHON_HEADERS],
 [AC_REQUIRE([AM_PATH_PYTHON])
 AC_MSG_CHECKING(for headers required to compile python extensions)
 dnl deduce PYTHON_INCLUDES
-if test "x$PYTHON_INCLUDES" == x; then
+if test "x$PYTHON_INCLUDES" = x; then
   PYTHON_CONFIG=`which $PYTHON`-config
   if test -x "$PYTHON_CONFIG"; then
     PYTHON_INCLUDES=`$PYTHON_CONFIG --includes 2>/dev/null`
@@ -76,10 +76,10 @@ AC_DEFUN([AM_CHECK_PYTHON_LIBS],
 AC_MSG_CHECKING(for libraries required to embed python)
 dnl deduce PYTHON_LIBS
 py_exec_prefix=`$PYTHON -c "import sys; print(sys.exec_prefix)"`
-if test "x$PYTHON_LIBS" == x; then
+if test "x$PYTHON_LIBS" = x; then
 	PYTHON_LIBS="-L${py_prefix}/lib -lpython${PYTHON_VERSION}"
 fi
-if test "x$PYTHON_LIB_LOC" == x; then
+if test "x$PYTHON_LIB_LOC" = x; then
 	PYTHON_LIB_LOC="${py_prefix}/lib"
 fi
 AC_SUBST(PYTHON_LIBS)