Gathered up common compiler and linker flags for the makefile.gtk file set.

Much easier now to compile with debugging symbols enabled.

3d-viewer/makefile.gtk

 ## Makefile for 3d-viewer.a ( wxGTK - LINUX )
-CC = gcc
-
-# Compiler flags.
-
-CPPFLAGS =  -Wall -O2 -DPCBNEW  -I../pcbnew -I ../include -I../common\
-	  `wx-config --cxxflags` -fno-strict-aliasing
-
 
 include ../libs.linux
 
+# Compiler flags.
+CPPFLAGS += -DPCBNEW -I../pcbnew -I ../include -I../common
+
 TARGET = 3d-viewer
 
 FINAL = 1

common/makefile.gtk

 ## Makefile for common.a
 CC = gcc
 
+
+include ../libs.linux
+
 # Compiler flags.
-CPPFLAGS =  -Wall -O2 -I./ -I../include `wx-config --cflags`
+CPPFLAGS +=  -I./ -I../include
 
 EDACPPFLAGS = $(CPPFLAGS)
 
 all: common.a
 
-include ../libs.linux
-
 include makefile.include
 
 CPPFLAGS += $(EXTRACPPFLAGS) -fno-strict-aliasing

cvpcb/makefile.gtk

 # File:		makefile
 
-# Compiler flags.
-CC = gcc
-LD = gcc
-
 FINAL = 1
 
-# Compiler flags.
 
-CPPFLAGS = -Wall -O2 `wx-config --cxxflags`
+include ../libs.linux
 
-LDFLAGS =  -s
+# Compiler flags.
+CPPFLAGS +=
 
 EDACPPFLAGS = $(CPPFLAGS)
 
-include ../libs.linux
-
-
 TARGET = cvpcb
 
 all: $(TARGET)

eeschema/makefile.gtk

 ## Makefile for eeschema
-CC = gcc
-#LD = c++ pour utiliser libstdc++ dynamique
-LD = gcc
 
-FINAL = 1
 
+include ../libs.linux
 
-LDFLAGS =  -s
 
-include ../libs.linux
+# Additional compiler flags
+CPPFLAGS +=
 
 TARGET = eeschema
 
 
-CPPFLAGS = -Wall -O2 `wx-config --cxxflags`
-
 
 all: $(TARGET)
 

gerbview/makefile.gtk

 ## Makefile for GERBVIEW et wxGTK
-CC = gcc
-LD = gcc
 
-# Compiler flags.
-CPPFLAGS =  -Wall -O2 `wx-config --cxxflags`
-
-LDFLAGS = -s
 
 include ../libs.linux
 
+# Additional compiler flags.
+CPPFLAGS +=
+
 
 TARGET = gerbview
 
@@ -34,5 +31,4 @@ clean:
 	rm -f *.map
 	rm -f $(TARGET)
 
-
-
+    
\ No newline at end of file

kicad/makefile.gtk

 # File:		makefile for kicad, wxGTK
 
-# Compiler flags.
-CC = gcc
-LD = gcc
 
-FINAL = 1
+include ../libs.linux
 
-# Compiler flags.
-CPPFLAGS =  -Wall -O2 `wx-config --cxxflags`
-LDFLAGS =  -s
+# Additional compiler flags
+CPPFLAGS +=
 
-include ../libs.linux
+FINAL = 1
 
 TARGET = kicad
 

libs.linux

@@ -3,11 +3,31 @@
 KICAD_BIN = /usr/local/kicad
 KICAD_PLUGINS = $(KICAD_BIN)/plugins
 
+# http://www.gnu.org/software/autoconf/manual/make/Catalogue-of-Rules.html#Catalogue-of-Rules
+CXX = g++
+LD  = g++
+
 
 SRCSUFF = .cpp
 OBJSUFF = .o
 FINAL = 1
 
+
+# turn on debugging for all executables, only tested without KICAD_PYTHON
+DEBUG = 1
+
+
+# common CPPFLAGS to all components, further CPPFLAGS customization in 
+# directory specific makefile.gtk files.
+ifdef DEBUG
+CPPFLAGS = -Wall -g `wx-config --debug --cxxflags` -fno-strict-aliasing
+LDFLAGS = -g #-v
+else
+CPPFLAGS = -Wall -O2 `wx-config --cxxflags` -fno-strict-aliasing
+LDFLAGS = -s #-v
+endif
+
+
 # You must comment or uncomment this line to disable/enable python support
 #KICAD_PYTHON = 1
 
@@ -19,7 +39,7 @@ FINAL = 1
 #endif
 
 ifdef KICAD_PYTHON
-PYTHON_VERSION=2.3
+PYTHON_VERSION=2.5
 PYLIBS= -L/usr/lib
 PYLIBS+= -L /usr/include/python
 PYLIBS+= -lpython$(PYTHON_VERSION)
@@ -79,11 +99,19 @@ WXSYSLIB_WITH_GL= $(WXPATH)/$(PREFIX_WX_LIBS)-$(LIBVERSION).a \
         -lglib-2.0 -lpangoft2-1.0 -lSM\
        -L/usr/lib $(PYLIBS)
 else
-#or use "standard command" for wxWidgets
+
+ifdef DEBUG
+# debug wxWidgets
+WXSYSLIB= `wx-config --debug --libs std`
+WXSYSLIB_WITH_GL= `wx-config --debug --libs std,gl`
+else
+# or use "standard command" for wxWidgets
 WXSYSLIB= `wx-config --libs std`
 WXSYSLIB_WITH_GL= `wx-config --libs std,gl`
 endif
 
+endif
+
 
 # attention  l'ordre des libairies
 LIBS = -L/usr/local/lib -L/usr/X11R6/lib\

makefile.gtk

+
 MAKE = make -f makefile.gtk
 KICAD_SUBDIRS =  common 3d-viewer eeschema eeschema/plugins pcbnew cvpcb kicad gerbview
 KICAD_SUBDIRS_BIN =  eeschema eeschema/plugins pcbnew cvpcb kicad gerbview

pcbnew/makefile.gtk

 ## Makefile for PCBNEW et wxGTK
-CC = gcc
-LD = gcc
-#DEBUG = 1
-
-# Compiler flags.
-ifdef DEBUG
-CPPFLAGS = -Wall -g `wx-config --cxxflags`
-LDFLAGS = -g
-else
-CPPFLAGS = -Wall -O2 `wx-config --cxxflags`
-LDFLAGS = -s 
-endif
+
 
 include ../libs.linux
 
+# Additional compiler flags
+CPPFLAGS +=
+
+
 TARGET = pcbnew
 
 all: $(TARGET)
@@ -24,7 +17,6 @@ CPPFLAGS += $(EXTRACPPFLAGS)
 EDACPPFLAGS = $(CPPFLAGS)
 
 
-
 $(TARGET): $(OBJECTS) makefile.gtk  makefile.include $(LIBVIEWER3D) $(EXTRALIBS) ../libs.linux
 		$(LD) $(LDFLAGS) $(OBJECTS) $(LIBVIEWER3D) $(LIBS_WITH_GL)\
 		-o $(TARGET)