diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index 239c3372ce..6cb65c6cf8 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -17,6 +17,16 @@
    past entries belonging to author(s): Viktor Szakats.
 */
 
+2010-03-10 14:34 UTC+0100 Viktor Szakats (harbour.01 syenar.hu)
+  * config/win/cygwin.mk
+  * config/win/mingw.mk
+  * config/wce/mingwarm.mk
+    % Added -pipe option to win/gcc compilers, this way it's faster
+      (but consume more memory) since it passes intermediate files
+      - I could only spot the .s file - without writing them to disk.
+      Probably we should enable this on other platforms as well,
+      and if it works out well, also in hbmk2.
+
 2010-03-10 12:26 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
   * harbour/src/compiler/hbmain.c
   * harbour/src/compiler/harbour.y
diff --git a/harbour/config/wce/mingwarm.mk b/harbour/config/wce/mingwarm.mk
index f9a6c4c47d..5b0587da30 100644
--- a/harbour/config/wce/mingwarm.mk
+++ b/harbour/config/wce/mingwarm.mk
@@ -16,7 +16,7 @@ CC := $(HB_CCPATH)$(HB_CCPREFIX)$(HB_CMP)$(HB_CCPOSTFIX)
 CC_IN := -c
 CC_OUT := -o
 
-CFLAGS += -I. -I$(HB_INC_COMPILE)
+CFLAGS += -I. -I$(HB_INC_COMPILE) -pipe
 
 ifneq ($(HB_BUILD_WARN),no)
    CFLAGS += -Wall -W
diff --git a/harbour/config/win/cygwin.mk b/harbour/config/win/cygwin.mk
index 62606802e4..35b1d9c2ad 100644
--- a/harbour/config/win/cygwin.mk
+++ b/harbour/config/win/cygwin.mk
@@ -16,7 +16,7 @@ CC := $(HB_CCPATH)$(HB_CCPREFIX)$(HB_CMP)$(HB_CCPOSTFIX)
 CC_IN := -c
 CC_OUT := -o
 
-CFLAGS += -I. -I$(HB_INC_COMPILE)
+CFLAGS += -I. -I$(HB_INC_COMPILE) -pipe
 
 ifneq ($(HB_BUILD_WARN),no)
    CFLAGS += -Wall -W
diff --git a/harbour/config/win/mingw.mk b/harbour/config/win/mingw.mk
index a2b7bc7252..9fb4e30acd 100644
--- a/harbour/config/win/mingw.mk
+++ b/harbour/config/win/mingw.mk
@@ -16,7 +16,7 @@ CC := $(HB_CCPATH)$(HB_CCPREFIX)$(HB_CMP)$(HB_CCPOSTFIX)
 CC_IN := -c
 CC_OUT := -o
 
-CFLAGS += -I. -I$(HB_INC_COMPILE)
+CFLAGS += -I. -I$(HB_INC_COMPILE) -pipe
 
 # Equivalent to MSVC -GS (default) option, available in GCC 4.1 and upper:
 #    -fstack-protector
@@ -32,9 +32,14 @@ ifneq ($(HB_BUILD_WARN),no)
 endif
 
 ifneq ($(HB_BUILD_OPTIM),no)
+   # -O3 is not recommended for GCC 4.x by some packagers (see http://www.gentoo.org/doc/en/gcc-optimization.xml)
    CFLAGS += -O3
-   ifneq ($(HB_BUILD_DEBUG),yes)
-      CFLAGS += -fomit-frame-pointer
+   # This option is not needed in x86_64 mode.
+   ifneq ($(HB_COMPILER),mingw64)
+      # It makes debugging hard or impossible on x86 systems.
+      ifneq ($(HB_BUILD_DEBUG),yes)
+         CFLAGS += -fomit-frame-pointer
+      endif
    endif
    ifeq ($(HB_COMPILER),mingw)
       CFLAGS += -march=i586 -mtune=pentiumpro