diff --git a/ext/cpdf/config.m4 b/ext/cpdf/config.m4
index 4f9a8e5cbc6..b1bce3bab41 100644
--- a/ext/cpdf/config.m4
+++ b/ext/cpdf/config.m4
@@ -58,7 +58,7 @@ AC_ARG_WITH(cpdflib,
     CPDF_JPEG_TEST
     CPDF_TIFF_TEST
 
-    for i in $cpdf_withval /usr /usr/local; do
+    for i in $cpdf_withval /usr/local /usr; do
       if test -f "$i/include/cpdflib.h"; then
         CPDFLIB_INCLUDE=$i/include
         AC_MSG_CHECKING(for cpdflib.h)
diff --git a/ext/crack/config.m4 b/ext/crack/config.m4
index 55757ab14c9..0a9768f54d2 100644
--- a/ext/crack/config.m4
+++ b/ext/crack/config.m4
@@ -7,27 +7,26 @@ PHP_ARG_WITH(crack, for CRACKlib support,
 
 if test "$PHP_CRACK" != "no"; then
 
-	for i in $PHP_CRACK/lib $PHP_CRACK/cracklib /usr/local/lib /usr/lib; do
-		test -f $i/libcrack.$SHLIB_SUFFIX_NAME -o -f $i/libcrack.a && CRACK_LIBDIR=$i
-	done
+  for i in $PHP_CRACK/lib $PHP_CRACK/cracklib /usr/local/lib /usr/lib; do
+    test -f $i/libcrack.$SHLIB_SUFFIX_NAME -o -f $i/libcrack.a && CRACK_LIBDIR=$i && break
+  done
 
-	for i in $PHP_CRACK/include $PHP_CRACK/cracklib /usr/local/include /usr/include; do
-		test -f $i/packer.h && CRACK_INCLUDEDIR=$i
-	done
+  if test -z "$CRACK_LIBDIR"; then
+    AC_MSG_ERROR(Cannot find the cracklib library file)
+  fi
+
+  for i in $PHP_CRACK/include $PHP_CRACK/cracklib /usr/local/include /usr/include; do
+    test -f $i/packer.h && CRACK_INCLUDEDIR=$i && break
+  done
   
-	if test -z "$CRACK_LIBDIR"; then
-		AC_MSG_ERROR(Cannot find the cracklib library file)
-	fi
+  if test -z "$CRACK_INCLUDEDIR"; then
+    AC_MSG_ERROR(Cannot find a cracklib header file)
+  fi
 
-	if test -z "$CRACK_INCLUDEDIR"; then
-		AC_MSG_ERROR(Cannot find a cracklib header file)
-	fi
+  PHP_ADD_INCLUDE($CRACK_INCLUDEDIR)
+  PHP_ADD_LIBRARY_WITH_PATH(crack, $CRACK_LIBDIR, CRACK_SHARED_LIBADD)
 
-	PHP_ADD_INCLUDE($CRACK_INCLUDEDIR)
-	PHP_ADD_LIBRARY_WITH_PATH(crack, $CRACK_LIBDIR, CRACK_SHARED_LIBADD)
-
-	PHP_NEW_EXTENSION(crack, crack.c, $ext_shared)
-	PHP_SUBST(CRACK_SHARED_LIBADD)
-	AC_DEFINE(HAVE_CRACK, 1, [ ])
+  PHP_NEW_EXTENSION(crack, crack.c, $ext_shared)
+  PHP_SUBST(CRACK_SHARED_LIBADD)
+  AC_DEFINE(HAVE_CRACK, 1, [ ])
 fi
-
diff --git a/ext/fbsql/config.m4 b/ext/fbsql/config.m4
index 14360ce8b2b..60707d3269e 100644
--- a/ext/fbsql/config.m4
+++ b/ext/fbsql/config.m4
@@ -13,7 +13,7 @@ if test "$PHP_FBSQL" != "no"; then
   FBSQL_INSTALLATION_DIR=""
   if test "$PHP_FBSQL" = "yes"; then
 
-    for i in /Local/Library /usr /usr/local /opt /Library /usr/lib; do
+    for i in /Local/Library /usr/local /usr /opt /Library /usr/lib; do
       if test -f $i/FrontBase/include/FBCAccess/FBCAccess.h; then
         FBSQL_INSTALLATION_DIR=$i/FrontBase
         break
diff --git a/ext/fdf/config.m4 b/ext/fdf/config.m4
index 2ed695e17e6..ada0f80e95f 100644
--- a/ext/fdf/config.m4
+++ b/ext/fdf/config.m4
@@ -23,7 +23,7 @@ if test "$PHP_FDFTK" != "no"; then
   esac
 
   if test "$PHP_FDFTK" = "yes"; then 
-    PHP_FDFTK="/usr /usr/local ../FDFToolkitForUNIX ext/fdf/FDFToolkitForUNIX ../fdftk ext/fdf/fdftk"
+    PHP_FDFTK="/usr/local /usr ../FDFToolkitForUNIX ext/fdf/FDFToolkitForUNIX ../fdftk ext/fdf/fdftk"
   fi
 
   for dir in $PHP_FDFTK; do
diff --git a/ext/gd/config.m4 b/ext/gd/config.m4
index fa21f81a135..aacb084e13c 100644
--- a/ext/gd/config.m4
+++ b/ext/gd/config.m4
@@ -50,8 +50,8 @@ dnl
 AC_DEFUN(PHP_GD_JPEG,[
   if test "$PHP_JPEG_DIR" != "no"; then
 
-    for i in $PHP_JPEG_DIR /usr /usr/local; do
-      test -f $i/lib/libjpeg.$SHLIB_SUFFIX_NAME -o -f $i/lib/libjpeg.a && GD_JPEG_DIR=$i
+    for i in $PHP_JPEG_DIR /usr/local /usr; do
+      test -f $i/lib/libjpeg.$SHLIB_SUFFIX_NAME -o -f $i/lib/libjpeg.a && GD_JPEG_DIR=$i && break
     done
 
     if test -z "$GD_JPEG_DIR"; then
@@ -75,8 +75,8 @@ AC_DEFUN(PHP_GD_JPEG,[
 AC_DEFUN(PHP_GD_PNG,[
   if test "$PHP_PNG_DIR" != "no"; then
 
-    for i in $PHP_PNG_DIR /usr /usr/local; do
-      test -f $i/lib/libpng.$SHLIB_SUFFIX_NAME -o -f $i/lib/libpng.a && GD_PNG_DIR=$i
+    for i in $PHP_PNG_DIR /usr/local /usr; do
+      test -f $i/lib/libpng.$SHLIB_SUFFIX_NAME -o -f $i/lib/libpng.a && GD_PNG_DIR=$i && break
     done
 
     if test -z "$GD_PNG_DIR"; then
@@ -110,8 +110,8 @@ AC_DEFUN(PHP_GD_PNG,[
 AC_DEFUN(PHP_GD_XPM,[
   if test "$PHP_XPM_DIR" != "no"; then
 
-    for i in $PHP_XPM_DIR /usr /usr/local /usr/X11R6; do
-      test -f $i/lib/libXpm.$SHLIB_SUFFIX_NAME -o -f $i/lib/libXpm.a && GD_XPM_DIR=$i
+    for i in $PHP_XPM_DIR /usr/local /usr/X11R6 /usr; do
+      test -f $i/lib/libXpm.$SHLIB_SUFFIX_NAME -o -f $i/lib/libXpm.a && GD_XPM_DIR=$i && break
     done
 
     if test -z "$GD_XPM_DIR"; then
@@ -144,9 +144,9 @@ AC_DEFUN(PHP_GD_XPM,[
 AC_DEFUN(PHP_GD_FREETYPE1,[
   if test "$PHP_TTF" != "no"; then
     if test "$PHP_FREETYPE_DIR" = "no" -o "$PHP_FREETYPE_DIR" = ""; then
-      if test -n "$PHP_TTF" ; then
-        for i in $PHP_TTF /usr /usr/local; do
-          if test -f "$i/include/freetype.h" ; then
+      if test -n "$PHP_TTF"; then
+        for i in $PHP_TTF /usr/local /usr; do
+          if test -f "$i/include/freetype.h"; then
             TTF_DIR=$i
             unset TTF_INC_DIR
           fi
@@ -158,6 +158,7 @@ AC_DEFUN(PHP_GD_FREETYPE1,[
             TTF_DIR=$i
             TTF_INC_DIR=$i/include/freetype1/freetype
           fi
+          test -n "$TTF_DIR" && break
         done
       fi
       if test -n "$TTF_DIR" ; then
@@ -178,10 +179,11 @@ AC_DEFUN(PHP_GD_FREETYPE1,[
 AC_DEFUN(PHP_GD_FREETYPE2,[
   if test "$PHP_FREETYPE_DIR" != "no"; then
 
-    for i in $PHP_FREETYPE_DIR /usr /usr/local; do
+    for i in $PHP_FREETYPE_DIR /usr/local /usr; do
       if test -f "$i/include/freetype2/freetype/freetype.h"; then
         FREETYPE2_DIR=$i
         FREETYPE2_INC_DIR=$i/include/freetype2
+        break
       fi
     done
     
@@ -202,8 +204,8 @@ AC_DEFUN(PHP_GD_FREETYPE2,[
 AC_DEFUN(PHP_GD_T1LIB,[
   if test "$PHP_T1LIB" != "no"; then
 
-    for i in $PHP_T1LIB /usr /usr/local; do
-      test -f "$i/include/t1lib.h" && GD_T1_DIR=$i
+    for i in $PHP_T1LIB /usr/local /usr; do
+      test -f "$i/include/t1lib.h" && GD_T1_DIR=$i && break
     done
 
     if test -z "$GD_T1_DIR"; then
diff --git a/ext/gettext/config.m4 b/ext/gettext/config.m4
index 6cb1dd91c16..23bc9ae6f35 100644
--- a/ext/gettext/config.m4
+++ b/ext/gettext/config.m4
@@ -6,10 +6,8 @@ PHP_ARG_WITH(gettext,for GNU gettext support,
 [  --with-gettext[=DIR]    Include GNU gettext support.])
 
 if test "$PHP_GETTEXT" != "no"; then
-  for i in $PHP_GETTEXT /usr /usr/local; do
-    if test -r $i/include/libintl.h; then
-	  GETTEXT_DIR=$i
-    fi
+  for i in $PHP_GETTEXT /usr/local /usr; do
+    test -r $i/include/libintl.h && GETTEXT_DIR=$i && break
   done
 
   if test -z "$GETTEXT_DIR"; then
diff --git a/ext/gmp/config.m4 b/ext/gmp/config.m4
index 8548811bb7d..39e1bb24f93 100644
--- a/ext/gmp/config.m4
+++ b/ext/gmp/config.m4
@@ -8,18 +8,17 @@ PHP_ARG_WITH(gmp, for GNU MP support,
 if test "$PHP_GMP" != "no"; then
 
   for i in $PHP_GMP /usr/local /usr; do
-    if test -f $i/include/gmp.h; then
-      GMP_DIR=$i
-    fi
+    test -f $i/include/gmp.h && GMP_DIR=$i && break
   done
 
   if test -z "$GMP_DIR"; then
     AC_MSG_ERROR(Unable to locate gmp.h)
   fi
+
+  PHP_ADD_LIBRARY_WITH_PATH(gmp, $GMP_DIR/lib, GMP_SHARED_LIBADD)
   PHP_ADD_INCLUDE($GMP_DIR/include)
 
   PHP_NEW_EXTENSION(gmp, gmp.c, $ext_shared)
-  AC_DEFINE(HAVE_GMP, 1, [ ])
   PHP_SUBST(GMP_SHARED_LIBADD)
-  PHP_ADD_LIBRARY_WITH_PATH(gmp, $GMP_DIR/lib, GMP_SHARED_LIBADD)
+  AC_DEFINE(HAVE_GMP, 1, [ ])
 fi
diff --git a/ext/imap/config.m4 b/ext/imap/config.m4
index 146ce8f3d72..ceefb0d04af 100644
--- a/ext/imap/config.m4
+++ b/ext/imap/config.m4
@@ -6,18 +6,17 @@ AC_DEFUN(IMAP_INC_CHK,[if test -r "$i$1/c-client.h"; then
     AC_DEFINE(HAVE_IMAP2000, 1, [ ])
     IMAP_DIR=$i
     IMAP_INC_DIR=$i$1
+    break
   elif test -r "$i$1/rfc822.h"; then 
     IMAP_DIR=$i; 
     IMAP_INC_DIR=$i$1
+	break
 ])
 
 AC_DEFUN(IMAP_LIB_CHK,[
   str="$IMAP_DIR/$1/lib$lib.*"
   for i in `echo $str`; do
-    if test -r $i; then
-      IMAP_LIBDIR=$IMAP_DIR/$1
-      break 2
-    fi
+    test -r $i && IMAP_LIBDIR=$IMAP_DIR/$1 && break 2
   done
 ])
 
diff --git a/ext/mcrypt/config.m4 b/ext/mcrypt/config.m4
index 76c097cdddc..4d9cc3eb068 100644
--- a/ext/mcrypt/config.m4
+++ b/ext/mcrypt/config.m4
@@ -25,9 +25,7 @@ PHP_ARG_WITH(mcrypt, for mcrypt support,
 
 if test "$PHP_MCRYPT" != "no"; then
   for i in $PHP_MCRYPT /usr/local /usr; do
-    if test -f $i/include/mcrypt.h; then
-      MCRYPT_DIR=$i
-    fi
+    test -f $i/include/mcrypt.h && MCRYPT_DIR=$i && break
   done
 
   if test -z "$MCRYPT_DIR"; then
diff --git a/ext/mhash/config.m4 b/ext/mhash/config.m4
index da7286e49fc..6b93decbcb7 100644
--- a/ext/mhash/config.m4
+++ b/ext/mhash/config.m4
@@ -7,19 +7,17 @@ PHP_ARG_WITH(mhash, for mhash support,
 
 if test "$PHP_MHASH" != "no"; then
   for i in $PHP_MHASH /usr/local /usr /opt/mhash; do
-    if test -f $i/include/mhash.h; then
-      MHASH_DIR=$i
-    fi
+    test -f $i/include/mhash.h && MHASH_DIR=$i && break
   done
 
   if test -z "$MHASH_DIR"; then
     AC_MSG_ERROR(Please reinstall libmhash - I cannot find mhash.h)
   fi
+
   PHP_ADD_INCLUDE($MHASH_DIR/include)
   PHP_ADD_LIBRARY_WITH_PATH(mhash, $MHASH_DIR/lib, MHASH_SHARED_LIBADD)
-  PHP_SUBST(MHASH_SHARED_LIBADD)
-
-  AC_DEFINE(HAVE_LIBMHASH,1,[ ])
 
   PHP_NEW_EXTENSION(mhash, mhash.c, $ext_shared)
+  PHP_SUBST(MHASH_SHARED_LIBADD)
+  AC_DEFINE(HAVE_LIBMHASH,1,[ ])
 fi
diff --git a/ext/ovrimos/config.m4 b/ext/ovrimos/config.m4
index 19482f39cbd..e22148ea121 100644
--- a/ext/ovrimos/config.m4
+++ b/ext/ovrimos/config.m4
@@ -8,9 +8,7 @@ PHP_ARG_WITH(ovrimos, for Ovrimos SQL Server support,
 
 if test "$PHP_OVRIMOS" != "no"; then
   for i in $PHP_OVRIMOS /usr/local /usr; do
-    if test -f $i/include/sqlcli.h; then
-      OVRIMOS_DIR=$i
-    fi
+    test -f $i/include/sqlcli.h && OVRIMOS_DIR=$i && break
   done
 
   if test -z "$OVRIMOS_DIR"; then
@@ -18,11 +16,11 @@ if test "$PHP_OVRIMOS" != "no"; then
   fi
 
   PHP_ADD_INCLUDE($OVRIMOS_DIR/include)
-  PHP_SUBST(OVRIMOS_SHARED_LIBADD)
   LDFLAGS="$LDFLAGS $ld_runpath_switch$OVRIMOS_DIR/lib -L$OVRIMOS_DIR/lib"
   AC_CHECK_LIB(sqlcli, main)
   PHP_ADD_LIBRARY_WITH_PATH(sqlcli, $OVRIMOS_DIR/lib, OVRIMOS_SHARED_LIBADD)
-  AC_DEFINE(HAVE_LIBSQLCLI,1,[ ])
 
   PHP_NEW_EXTENSION(ovrimos, ovrimos.c, $ext_shared)
+  PHP_SUBST(OVRIMOS_SHARED_LIBADD)
+  AC_DEFINE(HAVE_LIBSQLCLI,1,[ ])
 fi
diff --git a/ext/pfpro/config.m4 b/ext/pfpro/config.m4
index 17424aae10c..b18abd3ab59 100644
--- a/ext/pfpro/config.m4
+++ b/ext/pfpro/config.m4
@@ -25,6 +25,8 @@ if test "$PHP_PFPRO" != "no"; then
     elif test -r $i/lib/$PFPRO_LIB; then
       PFPRO_LIB_DIR=$i/lib
     fi
+
+	test -n "$PFPRO_INC_DIR" && test -n "$PFPRO_LIB_DIR" && break
   done
 
   if test -z "$PFPRO_INC_DIR"; then
diff --git a/ext/readline/config.m4 b/ext/readline/config.m4
index e5c2a057a03..7df38b247a9 100644
--- a/ext/readline/config.m4
+++ b/ext/readline/config.m4
@@ -10,9 +10,7 @@ PHP_ARG_WITH(readline,for readline support,
 
 if test "$PHP_READLINE" != "no"; then
   for i in $PHP_READLINE /usr/local /usr; do
-    if test -f $i/include/readline/readline.h; then
-      READLINE_DIR=$i
-    fi
+    test -f $i/include/readline/readline.h && READLINE_DIR=$i && break
   done
 
   if test -z "$READLINE_DIR"; then
@@ -49,17 +47,14 @@ if test "$PHP_READLINE" != "no"; then
     -L$READLINE_DIR/lib 
   ])
 
-  PHP_SUBST(READLINE_SHARED_LIBADD)
-
-  AC_DEFINE(HAVE_LIBREADLINE, 1, [ ])
   PHP_NEW_EXTENSION(readline, readline.c, $ext_shared, cli)
+  PHP_SUBST(READLINE_SHARED_LIBADD)
+  AC_DEFINE(HAVE_LIBREADLINE, 1, [ ])
 
 elif test "$PHP_LIBEDIT" != "no"; then
 
   for i in $PHP_LIBEDIT /usr/local /usr; do
-    if test -f $i/include/readline/readline.h; then
-      LIBEDIT_DIR=$i
-    fi
+    test -f $i/include/readline/readline.h && LIBEDIT_DIR=$i && break
   done
 
   if test -z "$LIBEDIT_DIR"; then
@@ -87,8 +82,7 @@ elif test "$PHP_LIBEDIT" != "no"; then
     -L$READLINE_DIR/lib 
   ])
 
-  PHP_SUBST(READLINE_SHARED_LIBADD)
-
-  AC_DEFINE(HAVE_LIBEDIT, 1, [ ])
   PHP_NEW_EXTENSION(readline, readline.c, $ext_shared, cli)
+  PHP_SUBST(READLINE_SHARED_LIBADD)
+  AC_DEFINE(HAVE_LIBEDIT, 1, [ ])
 fi
diff --git a/ext/recode/config.m4 b/ext/recode/config.m4
index aae118a76b0..aa94914df8b 100644
--- a/ext/recode/config.m4
+++ b/ext/recode/config.m4
@@ -6,7 +6,7 @@ PHP_ARG_WITH(recode,for recode support,
 [  --with-recode[=DIR]     Include recode support.])
 
 if test "$PHP_RECODE" != "no"; then
-  RECODE_LIST="$PHP_RECODE /usr /usr/local /opt"
+  RECODE_LIST="$PHP_RECODE /usr/local /usr /opt"
 
   for i in $RECODE_LIST; do
     if test -f $i/include/recode.h; then
@@ -24,6 +24,7 @@ if test "$PHP_RECODE" != "no"; then
       RECODE_INC=include
       RECODE_LIB=lib
     fi
+    test -n "$RECODE_DIR" && break
   done
 
   if test -z "$RECODE_DIR"; then
diff --git a/ext/session/config.m4 b/ext/session/config.m4
index 9be3040d076..3f748996766 100644
--- a/ext/session/config.m4
+++ b/ext/session/config.m4
@@ -18,9 +18,7 @@ fi
 
 if test "$PHP_MM" != "no"; then
   for i in $PHP_MM /usr/local /usr; do
-    if test -f "$i/include/mm.h"; then
-      MM_DIR=$i
-    fi
+    test -f "$i/include/mm.h" && MM_DIR=$i && break
   done
 
   if test -z "$MM_DIR" ; then
diff --git a/ext/xmlrpc/config.m4 b/ext/xmlrpc/config.m4
index 09d684e9215..8551f6b958c 100644
--- a/ext/xmlrpc/config.m4
+++ b/ext/xmlrpc/config.m4
@@ -22,12 +22,13 @@ if test "$PHP_XMLRPC" != "no"; then
   AC_DEFINE(HAVE_XMLRPC,1,[ ])
 
   testval=no
-  for i in $PHP_EXPAT_DIR $XMLRPC_DIR /usr /usr/local; do
+  for i in $PHP_EXPAT_DIR $XMLRPC_DIR /usr/local /usr; do
     if test -f $i/lib/libexpat.a -o -f $i/lib/libexpat.$SHLIB_SUFFIX_NAME; then
       AC_DEFINE(HAVE_LIBEXPAT2,1,[ ])
       PHP_ADD_LIBRARY_WITH_PATH(expat, $i/lib, XMLRPC_SHARED_LIBADD)
       PHP_ADD_INCLUDE($i/include)
       testval=yes
+      break
     fi
   done
 
@@ -76,6 +77,7 @@ dnl for xmlrpc-epi because of this.
       if test -r $i/include/xmlrpc.h; then
         XMLRPC_DIR=$i/include
         AC_MSG_RESULT(found in $i)
+        break
       fi
     done
   fi