diff --git a/configure.ac b/configure.ac
index da566aa5..05235e41 100644
--- a/configure.ac
+++ b/configure.ac
@@ -795,7 +795,7 @@ AC_ARG_WITH([OpenEXR],
 # require 1.2.2 since 1.2.1 has a broken ImfCloseTiledInputFile()
 if test x"$with_OpenEXR" != x"no"; then
   PKG_CHECK_MODULES(OPENEXR, OpenEXR >= 1.2.2,
-    [AC_DEFINE(HAVE_OPENEXR,1,[define if you have OpenEXR >=1.2.2 installed.])
+    [AC_DEFINE(HAVE_OPENEXR,1,[define if you have OpenEXR >= 1.2.2 installed.])
      with_OpenEXR=yes
      PACKAGES_USED="$PACKAGES_USED OpenEXR"
     ],
@@ -838,8 +838,7 @@ AS_IF([test x"$with_libjxl" = x"module"],
 
 if test x"$with_libjxl" != x"no"; then
   PKG_CHECK_MODULES(LIBJXL, libjxl_threads >= 0.5 libjxl >= 0.5,
-    [AC_DEFINE(HAVE_LIBJXL,1,
-       [define if you have libjxl >= 0.5 installed.])
+    [AC_DEFINE(HAVE_LIBJXL,1,[define if you have libjxl >= 0.5 installed.])
      with_libjxl=yes
      AS_IF([test x"$with_libjxl_module" = x"no"],
        [PACKAGES_USED="$PACKAGES_USED libjxl"])
@@ -857,7 +856,7 @@ if test x"$with_libjxl" = x"yes"; then
   # Introduced in 0.6
   AC_CHECK_FUNCS(JxlEncoderInitBasicInfo,[
      AC_DEFINE(HAVE_LIBJXL_JXLENCODERINITBASICINFO,1,
-               [define if you have heif_image_handle_get_raw_color_profile.])
+               [define if you have JxlEncoderInitBasicInfo.])
    ],[]
   )
   LIBS="$save_LIBS"
@@ -879,7 +878,7 @@ AC_ARG_WITH([libopenjp2],
 if test x"$with_libopenjp2" != x"no"; then
   PKG_CHECK_MODULES(LIBOPENJP2, libopenjp2 >= 2.4,
     [AC_DEFINE(HAVE_LIBOPENJP2,1,
-       [define if you have libopenjp2 >=2.4 installed.])
+       [define if you have libopenjp2 >= 2.4 installed.])
      with_libopenjp2=yes
      PACKAGES_USED="$PACKAGES_USED libopenjp2"
     ],