* Makefile, *.mk: Use `?=' where appropriate.

19 years ago · 8a4de0d669
parent 9a8006b18e
commit 8a4de0d669
22 changed files with 59 additions and 126 deletions
--- a/5
+++ b/5
@ -9,6 +9,11 @@

 	* builds/unix/install.mk (install): Fix path for ftmodule.h.

+	* Makefile, *.mk: Use `?=' where appropriate.
+
+	* builds/detect.mk (TOP_DIR), builds/os2/os2-dev.mk (TOP_DIR),
+	builds/win32/w32-dev.mk (TOP_DIR): Removed.  Defined elsewhere.
+
 2006-01-31  Werner Lemberg  <wl@gnu.org>

 	Implement new, simplified module selection.  With GNU make it is now
--- a/10
+++ b/10
@ -15,22 +15,18 @@

 # Project names
 #
-PROJECT := freetype
+PROJECT       := freetype
 PROJECT_TITLE := FreeType

 # The variable TOP_DIR holds the path to the topmost directory in the project
 # engine source hierarchy.  If it is not defined, default it to `.'.
 #
-ifndef TOP_DIR
-  TOP_DIR := .
-endif
+TOP_DIR ?= .

 # The variable OBJ_DIR gives the location where object files and the
 # FreeType library are built.
 #
-ifndef OBJ_DIR
-  OBJ_DIR := $(TOP_DIR)/objs
-endif
+OBJ_DIR ?= $(TOP_DIR)/objs


 include $(TOP_DIR)/builds/toplevel.mk
--- a/builds/ansi/ansi-def.mk
+++ b/builds/ansi/ansi-def.mk
@ -63,9 +63,7 @@ T := -o$(space)
 #   Use the ANSIFLAGS variable to define the compiler flags used to enfore
 #   ANSI compliance.
 #
-ifndef CFLAGS
-  CFLAGS := -c
-endif
+CFLAGS ?= -c

 # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant.
 #
--- a/builds/beos/beos-def.mk
+++ b/builds/beos/beos-def.mk
@ -65,9 +65,7 @@ T := -o$(space)
 #   Use the ANSIFLAGS variable to define the compiler flags used to enfore
 #   ANSI compliance.
 #
-ifndef CFLAGS
-  CFLAGS := -c
-endif
+CFLAGS ?= -c

 # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant.
 #
--- a/builds/compiler/ansi-cc.mk
+++ b/builds/compiler/ansi-cc.mk
@ -3,7 +3,7 @@
 #


-# Copyright 1996-2000, 2003 by
+# Copyright 1996-2000, 2003, 2006 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@ -62,9 +62,7 @@ T := -o$(space)
 #   Use the ANSIFLAGS variable to define the compiler flags used to enfore
 #   ANSI compliance.
 #
-ifndef CFLAGS
-  CFLAGS := -c
-endif
+CFLAGS ?= -c

 # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant.
 #
@ -75,10 +73,8 @@ ANSIFLAGS :=

 # Library linking
 #
-ifndef CLEAN_LIBRARY
-  CLEAN_LIBRARY = $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY))
-endif
-LINK_LIBRARY = $(AR) -r $@ $(subst /,$(COMPILER_SEP),$(OBJECTS_LIST))
+CLEAN_LIBRARY ?= $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY))
+LINK_LIBRARY   = $(AR) -r $@ $(subst /,$(COMPILER_SEP),$(OBJECTS_LIST))


 # EOF
--- a/builds/compiler/bcc-dev.mk
+++ b/builds/compiler/bcc-dev.mk
@ -3,7 +3,7 @@
 #


-# Copyright 1996-2000, 2003 by
+# Copyright 1996-2000, 2003, 2006 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@ -62,9 +62,7 @@ T := -o
 #   Use the ANSIFLAGS variable to define the compiler flags used to enfore
 #   ANSI compliance.
 #
-ifndef CFLAGS
-  CFLAGS := -q -c -y -d -v -Od -w-par -w-ccc -w-rch -w-pro -w-aus
-endif
+CFLAGS ?= -q -c -y -d -v -Od -w-par -w-ccc -w-rch -w-pro -w-aus

 # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant.
 #
@ -73,10 +71,8 @@ ANSIFLAGS := -A

 # Library linking
 #
-ifndef CLEAN_LIBRARY
-  CLEAN_LIBRARY = $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY))
-endif
-LINK_LIBRARY = tlib /u $(subst /,$(COMPILER_SEP),$@ $(OBJECTS_LIST:%=+%))
+CLEAN_LIBRARY ?= $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY))
+LINK_LIBRARY   = tlib /u $(subst /,$(COMPILER_SEP),$@ $(OBJECTS_LIST:%=+%))


 # EOF
--- a/builds/compiler/bcc.mk
+++ b/builds/compiler/bcc.mk
@ -3,7 +3,7 @@
 #


-# Copyright 1996-2000, 2003 by
+# Copyright 1996-2000, 2003, 2006 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@ -62,9 +62,7 @@ T := -o
 #   Use the ANSIFLAGS variable to define the compiler flags used to enfore
 #   ANSI compliance.
 #
-ifndef CFLAGS
-  CFLAGS := -c -q -y -d -v -Od -w-par -w-ccc -w-rch -w-pro -w-aus
-endif
+CFLAGS ?= -c -q -y -d -v -Od -w-par -w-ccc -w-rch -w-pro -w-aus

 # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant.
 #
@ -73,10 +71,8 @@ ANSIFLAGS := -A

 # Library linking
 #
-ifndef CLEAN_LIBRARY
-  CLEAN_LIBRARY = $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY))
-endif
-LINK_LIBRARY = tlib /u $(subst /,$(COMPILER_SEP),$@ $(OBJECTS_LIST:%=+%))
+CLEAN_LIBRARY ?= $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY))
+LINK_LIBRARY   = tlib /u $(subst /,$(COMPILER_SEP),$@ $(OBJECTS_LIST:%=+%))


 # EOF
--- a/builds/compiler/emx.mk
+++ b/builds/compiler/emx.mk
@ -3,7 +3,7 @@
 #


-# Copyright 2003 by
+# Copyright 2003, 2006 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@ -61,9 +61,7 @@ T := -o$(space)
 #   Use the ANSIFLAGS variable to define the compiler flags used to enfore
 #   ANSI compliance.
 #
-ifndef CFLAGS
-  CFLAGS := -c -g -O6 -Wall
-endif
+CFLAGS ?= -c -g -O6 -Wall

 # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant.
 #
@ -72,10 +70,8 @@ ANSIFLAGS :=

 # Library linking
 #
-ifndef CLEAN_LIBRARY
-  CLEAN_LIBRARY = $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY))
-endif
-LINK_LIBRARY = $(foreach m,$(OBJECTS_LIST),$(AR) -r $@ $(m);) echo > nul
+CLEAN_LIBRARY ?= $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY))
+LINK_LIBRARY   = $(foreach m,$(OBJECTS_LIST),$(AR) -r $@ $(m);) echo > nul


 # EOF
--- a/builds/compiler/gcc-dev.mk
+++ b/builds/compiler/gcc-dev.mk
@ -3,7 +3,7 @@
 #


-# Copyright 1996-2000, 2003, 2004, 2005 by
+# Copyright 1996-2000, 2003, 2004, 2005, 2006 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@ -87,10 +87,8 @@ ANSIFLAGS := -ansi -pedantic

 # Library linking
 #
-ifndef CLEAN_LIBRARY
-  CLEAN_LIBRARY = $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY))
-endif
-LINK_LIBRARY = $(AR) -r $@ $(OBJECTS_LIST)
+CLEAN_LIBRARY ?= $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY))
+LINK_LIBRARY   = $(AR) -r $@ $(OBJECTS_LIST)


 # EOF
--- a/builds/compiler/gcc.mk
+++ b/builds/compiler/gcc.mk
@ -3,7 +3,7 @@
 #


-# Copyright 1996-2000, 2003, 2005 by
+# Copyright 1996-2000, 2003, 2005, 2006 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@ -61,9 +61,7 @@ T := -o$(space)
 #   Use the ANSIFLAGS variable to define the compiler flags used to enfore
 #   ANSI compliance.
 #
-ifndef CFLAGS
-  CFLAGS := -c -g -O6 -Wall
-endif
+CFLAGS ?= -c -g -O6 -Wall

 # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant.
 #
@ -72,10 +70,8 @@ ANSIFLAGS := -ansi -pedantic

 # Library linking
 #
-ifndef CLEAN_LIBRARY
-  CLEAN_LIBRARY = $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY))
-endif
-LINK_LIBRARY = $(AR) -r $@ $(OBJECTS_LIST)
+CLEAN_LIBRARY ?= $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY))
+LINK_LIBRARY   = $(AR) -r $@ $(OBJECTS_LIST)


 # EOF
--- a/builds/compiler/intelc.mk
+++ b/builds/compiler/intelc.mk
@ -3,7 +3,7 @@
 #


-# Copyright 1996-2000, 2003 by
+# Copyright 1996-2000, 2003, 2006 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@ -69,9 +69,7 @@ T := /Fo
 #   _does_ compute an arithmetic value, so we disable this warning
 #   with "/Qwd32".
 #
-ifndef CFLAGS
-  CFLAGS := /nologo /c /Ox /G5 /W3 /Qwd32
-endif
+CFLAGS ?= /nologo /c /Ox /G5 /W3 /Qwd32

 # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant.
 #
--- a/builds/compiler/unix-lcc.mk
+++ b/builds/compiler/unix-lcc.mk
@ -3,7 +3,7 @@
 #


-# Copyright 1996-2000, 2003 by
+# Copyright 1996-2000, 2003, 2006 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@ -63,9 +63,7 @@ T := -o$(space)
 #   Use the ANSIFLAGS variable to define the compiler flags used to enfore
 #   ANSI compliance.
 #
-ifndef CFLAGS
-  CFLAGS := -c -g
-endif
+CFLAGS ?= -c -g

 # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant.
 #
@ -78,10 +76,8 @@ ANSIFLAGS := -A

 # library linking
 #
-ifndef CLEAN_LIBRARY
-  CLEAN_LIBRARY = $(DELETE) $(PROJECT_LIBRARY)
-endif
-LINK_LIBRARY = $(AR) -r $@ $(OBJECTS_LIST)
+CLEAN_LIBRARY ?= $(DELETE) $(PROJECT_LIBRARY)
+LINK_LIBRARY   = $(AR) -r $@ $(OBJECTS_LIST)


 # EOF
--- a/builds/compiler/visualage.mk
+++ b/builds/compiler/visualage.mk
@ -3,7 +3,7 @@
 #


-# Copyright 1996-2000, 2003 by
+# Copyright 1996-2000, 2003, 2006 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@ -60,9 +60,7 @@ T := /Fo
 #
 #   These should concern: debug output, optimization & warnings.
 #
-ifndef CFLAGS
-  CFLAGS := /Q- /Gd+ /O2 /G5 /W3 /C
-endif
+CFLAGS ?= /Q- /Gd+ /O2 /G5 /W3 /C

 # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant.
 #
--- a/builds/compiler/visualc.mk
+++ b/builds/compiler/visualc.mk
@ -3,7 +3,7 @@
 #


-# Copyright 1996-2000, 2003, 2005 by
+# Copyright 1996-2000, 2003, 2005, 2006 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@ -66,9 +66,7 @@ TE := /Fe
 #   Use the ANSIFLAGS variable to define the compiler flags used to enfore
 #   ANSI compliance.
 #
-ifndef CFLAGS
-  CFLAGS := /nologo /c /Ox /G5 /W3 /WX
-endif
+CFLAGS ?= /nologo /c /Ox /G5 /W3 /WX

 # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant.
 #
--- a/builds/compiler/watcom.mk
+++ b/builds/compiler/watcom.mk
@ -3,7 +3,7 @@
 #


-# Copyright 1996-2000, 2003 by
+# Copyright 1996-2000, 2003, 2006 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@ -63,9 +63,7 @@ T := -FO=
 #   Use the ANSIFLAGS variable to define the compiler flags used to enfore
 #   ANSI compliance.
 #
-ifndef CFLAGS
-  CFLAGS := -zq
-endif
+CFLAGS ?= -zq

 # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant.
 #
@ -74,12 +72,10 @@ ANSIFLAGS := -za

 # Library linking
 #
-ifndef CLEAN_LIBRARY
-  CLEAN_LIBRARY = $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY))
-endif
-LINK_LIBRARY = $(subst /,$(COMPILER_SEP), \
-                 wlib -q -n $@; \
-                 $(foreach m, $(OBJECTS_LIST), wlib -q $@ +$(m);) \
-                 echo > nul)
+CLEAN_LIBRARY ?= $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY))
+LINK_LIBRARY   = $(subst /,$(COMPILER_SEP), \
+                   wlib -q -n $@; \
+                   $(foreach m, $(OBJECTS_LIST), wlib -q $@ +$(m);) \
+                   echo > nul)

 # EOF
--- a/builds/compiler/win-lcc.mk
+++ b/builds/compiler/win-lcc.mk
@ -3,7 +3,7 @@
 #


-# Copyright 1996-2000, 2003 by
+# Copyright 1996-2000, 2003, 2006 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@ -63,9 +63,7 @@ T := -Fo
 #   Use the ANSIFLAGS variable to define the compiler flags used to enfore
 #   ANSI compliance.
 #
-ifndef CFLAGS
-  CFLAGS := -c -g2 -O
-endif
+CFLAGS ?= -c -g2 -O

 # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant.
 #
--- a/builds/detect.mk
+++ b/builds/detect.mk
@ -38,12 +38,6 @@
 #   TOP_DIR      The top-most directory in the FreeType library source
 #                hierarchy.  If not defined, it will default to `.'.

-# If TOP_DIR is not defined, default it to `.'
-#
-ifndef TOP_DIR
-  TOP_DIR := .
-endif
-
 # Set auto-detection default to `ansi' resp. UNIX-like operating systems.
 #
 PLATFORM     := ansi
--- a/builds/dos/detect.mk
+++ b/builds/dos/detect.mk
@ -3,7 +3,7 @@
 #


-# Copyright 1996-2000, 2003, 2004 by
+# Copyright 1996-2000, 2003, 2004, 2006 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@ -73,9 +73,7 @@ ifeq ($(PLATFORM),dos)
  # Use DJGPP (i.e. gcc) by default.
  #
  CONFIG_FILE := dos-gcc.mk
-  ifndef CC
-    CC        := gcc
-  endif
+  CC          ?= gcc

  # additionally, we provide hooks for various other compilers
  #
--- a/builds/freetype.mk
+++ b/builds/freetype.mk
@ -105,9 +105,7 @@ CACHE_DIR    := $(PUBLIC_DIR)/cache

 # The documentation directory.
 #
-ifndef DOC_DIR
-  DOC_DIR := $(TOP_DIR)/docs/reference
-endif
+DOC_DIR ?= $(TOP_DIR)/docs/reference

 # The final name of the library file.
 #
@ -192,9 +190,7 @@ FREETYPE_H := $(PUBLIC_H) $(BASE_H) $(CONFIG_H) $(CACHE_H) $(DEVEL_H)

 # ftsystem component
 #
-ifndef FTSYS_SRC
-  FTSYS_SRC := $(BASE_DIR)/ftsystem.c
-endif
+FTSYS_SRC ?= $(BASE_DIR)/ftsystem.c

 FTSYS_OBJ := $(OBJ_DIR)/ftsystem.$O

@ -206,9 +202,7 @@ $(FTSYS_OBJ): $(FTSYS_SRC) $(FREETYPE_H)

 # ftdebug component
 #
-ifndef FTDEBUG_SRC
-  FTDEBUG_SRC := $(BASE_DIR)/ftdebug.c
-endif
+FTDEBUG_SRC ?= $(BASE_DIR)/ftdebug.c

 FTDEBUG_OBJ := $(OBJ_DIR)/ftdebug.$O

--- a/builds/os2/os2-dev.mk
+++ b/builds/os2/os2-dev.mk
@ -15,10 +15,6 @@
 # fully.


-ifndef TOP_DIR
-  TOP_DIR := .
-endif
-
 DEVEL_DIR := $(TOP_DIR)/devel

 # include OS/2-specific definitions
--- a/builds/toplevel.mk
+++ b/builds/toplevel.mk
@ -58,9 +58,7 @@ endif
 # FTMODULE_H, as its name suggests, indicates where the FreeType module
 # classes resides.
 #
-ifndef FTMODULE_H
-  FTMODULE_H := $(OBJ_DIR)/ftmodule.h
-endif
+FTMODULE_H ?= $(OBJ_DIR)/ftmodule.h


 include $(MODULES_CFG)
@ -74,9 +72,7 @@ MODULES := $(FONT_MODULES)    \
           $(AUX_MODULES)


-ifndef CONFIG_MK
-  CONFIG_MK := config.mk
-endif
+CONFIG_MK ?= config.mk

 # If no configuration sub-makefile is present, or if `setup' is the target
 # to be built, run the auto-detection rules to figure out which
--- a/builds/win32/w32-dev.mk
+++ b/builds/win32/w32-dev.mk
@ -19,10 +19,6 @@
 #       Shell (_not_ Cygwin BASH)!
 #

-ifndef TOP_DIR
-  TOP_DIR := .
-endif
-
 DEVEL_DIR := $(TOP_DIR)/devel

 include $(TOP_DIR)/builds/win32/win32-def.mk