semaphore with count of 1 is not exactly the same as mutex

[wxWidgets.git] / acinclude.m4

diff --git a/acinclude.m4 b/acinclude.m4
index 8ba09736997561063938ee49682a136e57a9b960..f1b9dff20dfe6661099a89c239b39b81bfc19516 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -132,7 +132,7 @@ AC_DEFUN([WX_CPP_NEW_HEADERS],
     AC_LANG_SAVE
     AC_LANG_CPLUSPLUS
 
-    AC_CHECK_HEADER(iostream,,, [ ])
+    AC_CHECK_HEADERS([iostream],,, [ ])
 
     if test "$ac_cv_header_iostream" = "yes" ; then
       ifelse([$1], , :, [$1])
@@ -284,7 +284,7 @@ AC_DEFUN([WX_CHECK_FUNCS],
 
     if eval test \$wx_cv_func_$wx_func = yes
     then
-      AC_DEFINE_UNQUOTED([HAVE_`echo $wx_func | tr 'a-z' 'A-Z'`])
+      AC_DEFINE_UNQUOTED([AS_TR_CPP([HAVE_$wx_func])])
       $2
     else
       :
@@ -364,7 +364,6 @@ dnl giving configure --disable-all-features option)
 AC_DEFUN([WX_ARG_SYS_WITH],
         [
           AC_MSG_CHECKING([for --with-$1])
-          no_cache=0
           AC_ARG_WITH($1, [$2],
                       [
                         if test "$withval" = yes; then
@@ -378,21 +377,23 @@ AC_DEFUN([WX_ARG_SYS_WITH],
                         else
                           AC_MSG_ERROR([Invalid value for --with-$1: should be yes, no, sys, or builtin])
                         fi
+                        cache=yes
                       ],
                       [
                         LINE=`grep "^$3=" ${wx_arg_cache_file}`
                         if test "x$LINE" != x ; then
-                          eval "DEFAULT_$LINE"
+                            eval "DEFAULT_$LINE"
+                            cache=yes
                         else
-                          no_cache=1
+                            cache=no
                         fi
 
                         AS_TR_SH(wx_cv_use_$1)='$3=${'DEFAULT_$3":-$wxUSE_ALL_FEATURES}"
                       ])
 
           eval "$AS_TR_SH(wx_cv_use_$1)"
-          if test "$no_cache" != 1; then
-            echo $AS_TR_SH(wx_cv_use_$1) >> ${wx_arg_cache_file}.tmp
+          if test "x$cache" = xyes; then
+            echo "$3=$$3" >> ${wx_arg_cache_file}.tmp
           fi
 
           if test "$$3" = yes; then
@@ -422,7 +423,6 @@ AC_DEFUN([WX_ARG_WITH],
               fi
           fi
           AC_MSG_CHECKING([for --${withstring:-with}-$1])
-          no_cache=0
           AC_ARG_WITH($1, [$2],
                       [
                         if test "$withval" = yes; then
@@ -430,21 +430,23 @@ AC_DEFUN([WX_ARG_WITH],
                         else
                           AS_TR_SH(wx_cv_use_$1)='$3=no'
                         fi
+                        cache=yes
                       ],
                       [
                         LINE=`grep "^$3=" ${wx_arg_cache_file}`
                         if test "x$LINE" != x ; then
-                          eval "DEFAULT_$LINE"
+                            eval "DEFAULT_$LINE"
+                            cache=yes
                         else
-                          no_cache=1
+                            cache=no
                         fi
 
                         AS_TR_SH(wx_cv_use_$1)='$3=${'DEFAULT_$3":-$defaultval}"
                       ])
 
           eval "$AS_TR_SH(wx_cv_use_$1)"
-          if test "$no_cache" != 1; then
-            echo $AS_TR_SH(wx_cv_use_$1) >> ${wx_arg_cache_file}.tmp
+          if test "x$cache" = xyes; then
+            echo "$3=$$3" >> ${wx_arg_cache_file}.tmp
           fi
 
           if test x"$withstring" = xwithout; then
@@ -486,7 +488,6 @@ AC_DEFUN([WX_ARG_ENABLE],
           fi
 
           AC_MSG_CHECKING([for --${enablestring:-enable}-$1])
-          no_cache=0
           AC_ARG_ENABLE($1, [$2],
                         [
                           if test "$enableval" = yes; then
@@ -494,21 +495,23 @@ AC_DEFUN([WX_ARG_ENABLE],
                           else
                             AS_TR_SH(wx_cv_use_$1)='$3=no'
                           fi
+                          cache=yes
                         ],
                         [
                           LINE=`grep "^$3=" ${wx_arg_cache_file}`
                           if test "x$LINE" != x ; then
-                            eval "DEFAULT_$LINE"
+                              eval "DEFAULT_$LINE"
+                              cache=yes
                           else
-                            no_cache=1
+                              cache=no
                           fi
 
                           AS_TR_SH(wx_cv_use_$1)='$3=${'DEFAULT_$3":-$defaultval}"
                         ])
 
           eval "$AS_TR_SH(wx_cv_use_$1)"
-          if test "$no_cache" != 1; then
-            echo $AS_TR_SH(wx_cv_use_$1) >> ${wx_arg_cache_file}.tmp
+          if test "x$cache" = xyes; then
+            echo "$3=$$3" >> ${wx_arg_cache_file}.tmp
           fi
 
           if test x"$enablestring" = xdisable; then
@@ -549,25 +552,26 @@ AC_DEFUN([WX_ARG_ENABLE_PARAM],
         [
           enablestring=$4
           AC_MSG_CHECKING([for --${enablestring:-enable}-$1])
-          no_cache=0
           AC_ARG_ENABLE($1, [$2],
                         [
                           wx_cv_use_$1="$3='$enableval'"
+                          cache=yes
                         ],
                         [
                           LINE=`grep "^$3=" ${wx_arg_cache_file}`
                           if test "x$LINE" != x ; then
                             eval "DEFAULT_$LINE"
+                            cache=yes
                           else
-                            no_cache=1
+                            cache=no
                           fi
 
                           wx_cv_use_$1='$3='$DEFAULT_$3
                         ])
 
           eval "$wx_cv_use_$1"
-          if test "$no_cache" != 1; then
-            echo $wx_cv_use_$1 >> ${wx_arg_cache_file}.tmp
+          if test "x$cache" = xyes; then
+            echo "$3=$$3" >> ${wx_arg_cache_file}.tmp
           fi
 
           AC_MSG_RESULT([$$3])