build system: assign variable values via '=' rather than '?='.

14 files changed, 114 insertions, 114 deletions

diff --git a/Makefile.in b/Makefile.in
index 3c5f40a..26365b4 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -1,50 +1,50 @@
-PACKAGE 		?= @package@
-PROJECT_DIR 		?= @project_dir@
-
-BUILD 			?= @build@
-HOST 			?= @host@
-TARGET 			?= @target@
-ARCH 			?= @arch@
-TOOLCHAIN 		?= @toolchain@
-SYSROOT 		?= @sysroot@
-CROSS_COMPILE 		?= @cross_compile@
-SHELL 			?= @shell@
-
-CFLAGS_DEBUG 		?= @cflags_debug@
-CFLAGS_COMMON 		?= @cflags_common@
-CFLAGS_CMDLINE 		?= @cflags_cmdline@
-CFLAGS_CONFIG 		?= @cflags_config@
-CFLAGS_SYSROOT 		?= @cflags_sysroot@
-CFLAGS_PATH 		?= @cflags_path@
-
-LDFLAGS_DEBUG 		?= @ldflags_debug@
-LDFLAGS_COMMON 		?= @ldflags_common@
-LDFLAGS_CMDLINE 	?= @ldflags_cmdline@
-LDFLAGS_CONFIG 		?= @ldflags_config@
-LDFLAGS_SYSROOT 	?= @ldflags_sysroot@
-LDFLAGS_PATH 		?= @ldflags_path@
-
-PE_SUBSYSTEM 		?= @pe_subsystem@
-PE_IMAGE_BASE 		?= @pe_image_base@
-PE_CONFIG_DEFS  	?= @pe_config_defs@
-
-ELF_EH_FRAME 		?= @elf_eh_frame@
-ELF_HASH_STYLE 		?= @elf_hash_style@
-ELF_CONFIG_DEFS 	?= @elf_config_defs@
-
-PREFIX 			?= @prefix@
-BIN_DIR 		?= @bindir@
-LIB_DIR 		?= @libdir@
-INCLUDE_DIR 		?= @includedir@
-SYSLIB_DIR 		?= @syslibdir@
-MAN_DIR 		?= @mandir@
-DOC_DIR 		?= @docdir@
-LIBEXEC_DIR 		?= @libexecdir@
-
-BUILD_CC 		?= @build_cc@
-BUILD_OS 		?= @build_os@
-BUILD_OS_BITS 		?= @build_os_bits@
-BUILD_OS_UNDERSCORE	?= @build_os_underscore@
+PACKAGE 		= @package@
+PROJECT_DIR 		= @project_dir@
+
+BUILD 			= @build@
+HOST 			= @host@
+TARGET 			= @target@
+ARCH 			= @arch@
+TOOLCHAIN 		= @toolchain@
+SYSROOT 		= @sysroot@
+CROSS_COMPILE 		= @cross_compile@
+SHELL 			= @shell@
+
+CFLAGS_DEBUG 		= @cflags_debug@
+CFLAGS_COMMON 		= @cflags_common@
+CFLAGS_CMDLINE 		= @cflags_cmdline@
+CFLAGS_CONFIG 		= @cflags_config@
+CFLAGS_SYSROOT 		= @cflags_sysroot@
+CFLAGS_PATH 		= @cflags_path@
+
+LDFLAGS_DEBUG 		= @ldflags_debug@
+LDFLAGS_COMMON 		= @ldflags_common@
+LDFLAGS_CMDLINE 	= @ldflags_cmdline@
+LDFLAGS_CONFIG 		= @ldflags_config@
+LDFLAGS_SYSROOT 	= @ldflags_sysroot@
+LDFLAGS_PATH 		= @ldflags_path@
+
+PE_SUBSYSTEM 		= @pe_subsystem@
+PE_IMAGE_BASE 		= @pe_image_base@
+PE_CONFIG_DEFS  	= @pe_config_defs@
+
+ELF_EH_FRAME 		= @elf_eh_frame@
+ELF_HASH_STYLE 		= @elf_hash_style@
+ELF_CONFIG_DEFS 	= @elf_config_defs@
+
+PREFIX 			= @prefix@
+BIN_DIR 		= @bindir@
+LIB_DIR 		= @libdir@
+INCLUDE_DIR 		= @includedir@
+SYSLIB_DIR 		= @syslibdir@
+MAN_DIR 		= @mandir@
+DOC_DIR 		= @docdir@
+LIBEXEC_DIR 		= @libexecdir@
+
+BUILD_CC 		= @build_cc@
+BUILD_OS 		= @build_os@
+BUILD_OS_BITS 		= @build_os_bits@
+BUILD_OS_UNDERSCORE	= @build_os_underscore@
 
 
 
diff --git a/project/defs.mk b/project/defs.mk
index b3be937..9ca0cf8 100644
--- a/project/defs.mk
+++ b/project/defs.mk
@@ -1,44 +1,44 @@
-SHARED_LIB_DEPS ?=
-SHARED_APP_DEPS ?=
-STATIC_APP_DEPS ?=
+SHARED_LIB_DEPS =
+SHARED_APP_DEPS =
+STATIC_APP_DEPS =
 
-COMMON_LOBJS 	?= $(COMMON_SRCS:.c=.lo)
-COMMON_OBJS 	?= $(COMMON_SRCS:.c=.o)
+COMMON_LOBJS 	= $(COMMON_SRCS:.c=.lo)
+COMMON_OBJS 	= $(COMMON_SRCS:.c=.o)
 
-ARCH_LOBJS 	?= $(ARCH_SRCS:.c=.lo)
-ARCH_OBJS 	?= $(ARCH_SRCS:.c=.o)
+ARCH_LOBJS 	= $(ARCH_SRCS:.c=.lo)
+ARCH_OBJS 	= $(ARCH_SRCS:.c=.o)
 
-APP_LOBJS 	?= $(APP_SRCS:.c=.lo)
-APP_OBJS 	?= $(APP_SRCS:.c=.o)
+APP_LOBJS 	= $(APP_SRCS:.c=.lo)
+APP_OBJS 	= $(APP_SRCS:.c=.o)
 
-SHARED_OBJS 	?= $(COMMON_LOBJS) $(ARCH_LOBJS)
-STATIC_OBJS 	?= $(COMMON_OBJS)  $(ARCH_OBJS)
+SHARED_OBJS 	= $(COMMON_LOBJS) $(ARCH_LOBJS)
+STATIC_OBJS 	= $(COMMON_OBJS)  $(ARCH_OBJS)
 
-SHARED_LIB 	?= $(LIB_DIR)/$(OS_LIB_PREFIX)$(PACKAGE)$(OS_LIB_SUFFIX)
-STATIC_LIB 	?= $(LIB_DIR)/$(OS_LIB_PREFIX)$(PACKAGE)$(OS_ARCHIVE_EXT)
-SHARED_IMPLIB 	?= $(LIB_DIR)/$(OS_LIB_PREFIX)$(PACKAGE)$(OS_IMPLIB_EXT)
+SHARED_LIB 	= $(LIB_DIR)/$(OS_LIB_PREFIX)$(PACKAGE)$(OS_LIB_SUFFIX)
+STATIC_LIB 	= $(LIB_DIR)/$(OS_LIB_PREFIX)$(PACKAGE)$(OS_ARCHIVE_EXT)
+SHARED_IMPLIB 	= $(LIB_DIR)/$(OS_LIB_PREFIX)$(PACKAGE)$(OS_IMPLIB_EXT)
 
-APP 		?= $(BIN_DIR)/$(OS_APP_PREFIX)$(PACKAGE)$(OS_APP_SUFFIX)
-DEFAULT_APP 	?= $(BIN_DIR)/$(OS_APP_PREFIX)$(PACKAGE)-default$(OS_APP_SUFFIX)
-SHARED_APP 	?= $(BIN_DIR)/$(OS_APP_PREFIX)$(PACKAGE)-shared$(OS_APP_SUFFIX)
-STATIC_APP 	?= $(BIN_DIR)/$(OS_APP_PREFIX)$(PACKAGE)-static$(OS_APP_SUFFIX)
+APP 		= $(BIN_DIR)/$(OS_APP_PREFIX)$(PACKAGE)$(OS_APP_SUFFIX)
+DEFAULT_APP 	= $(BIN_DIR)/$(OS_APP_PREFIX)$(PACKAGE)-default$(OS_APP_SUFFIX)
+SHARED_APP 	= $(BIN_DIR)/$(OS_APP_PREFIX)$(PACKAGE)-shared$(OS_APP_SUFFIX)
+STATIC_APP 	= $(BIN_DIR)/$(OS_APP_PREFIX)$(PACKAGE)-static$(OS_APP_SUFFIX)
 
-CFLAGS		?= $(CFLAGS_DEBUG)  $(CFLAGS_CONFIG)  $(CFLAGS_SYSROOT) \
+CFLAGS		= $(CFLAGS_DEBUG)  $(CFLAGS_CONFIG)  $(CFLAGS_SYSROOT) \
 		   $(CFLAGS_COMMON) $(CFLAGS_CMDLINE) $(CFLAGS_HOST) 	\
 		   $(CFLAGS_PATH)
 
-CFLAGS_SHARED 	?= $(CFLAGS) $(CFLAGS_PIC) $(CFLAGS_SHARED_ATTR)
-CFLAGS_STATIC 	?= $(CFLAGS) $(CFLAGS_OBJ) $(CFLAGS_STATIC_ATTR)
-CFLAGS_APP 	?= $(CFLAGS) $(CFLAGS_OBJ) $(CFLAGS_APP_ATTR)
+CFLAGS_SHARED 	= $(CFLAGS) $(CFLAGS_PIC) $(CFLAGS_SHARED_ATTR)
+CFLAGS_STATIC 	= $(CFLAGS) $(CFLAGS_OBJ) $(CFLAGS_STATIC_ATTR)
+CFLAGS_APP 	= $(CFLAGS) $(CFLAGS_OBJ) $(CFLAGS_APP_ATTR)
 
-LDFLAGS_SHARED	?= $(LDFLAGS_DEBUG)   $(LDFLAGS_CONFIG)  $(LDFLAGS_SYSROOT) \
+LDFLAGS_SHARED	= $(LDFLAGS_DEBUG)   $(LDFLAGS_CONFIG)  $(LDFLAGS_SYSROOT) \
 		   $(LDFLAGS_COMMON)  $(LDFLAGS_CMDLINE) $(LDFLAGS_HOST)    \
 		   $(LDFLAGS_PATH)    $(SHARED_LIB_DEPS) $(LDFLAGS_LAST)
 
-LDFLAGS_APP	?= $(LDFLAGS_DEBUG)   $(LDFLAGS_CONFIG)  $(LDFLAGS_SYSROOT) \
+LDFLAGS_APP	= $(LDFLAGS_DEBUG)   $(LDFLAGS_CONFIG)  $(LDFLAGS_SYSROOT) \
 		   $(LDFLAGS_COMMON)  $(LDFLAGS_CMDLINE) $(LDFLAGS_HOST)    \
 		   $(LDFLAGS_PATH)    $(SHARED_APP_DEPS) $(LDFLAGS_LAST)
 
-LDFLAGS_STATIC	?= $(LDFLAGS_DEBUG)   $(LDFLAGS_CONFIG)  $(LDFLAGS_SYSROOT) \
+LDFLAGS_STATIC	= $(LDFLAGS_DEBUG)   $(LDFLAGS_CONFIG)  $(LDFLAGS_SYSROOT) \
 		   $(LDFLAGS_COMMON)  $(LDFLAGS_CMDLINE) $(LDFLAGS_HOST)    \
 		   $(LDFLAGS_PATH)    $(STATIC_APP_DEPS) $(LDFLAGS_LAST)
diff --git a/sysinfo/host/i686-nt32-midipix.mk b/sysinfo/host/i686-nt32-midipix.mk
index 6ddc80f..7c3da66 100644
--- a/sysinfo/host/i686-nt32-midipix.mk
+++ b/sysinfo/host/i686-nt32-midipix.mk
@@ -1,4 +1,4 @@
 include $(PROJECT_DIR)/sysinfo/os/midipix.mk
 
-HOST_BITS 	?= 32
-HOST_UNDERSCORE ?= '_'
+HOST_BITS 	= 32
+HOST_UNDERSCORE = '_'
diff --git a/sysinfo/host/i686-unknown-linux.mk b/sysinfo/host/i686-unknown-linux.mk
index 6b3e3ee..ede5592 100644
--- a/sysinfo/host/i686-unknown-linux.mk
+++ b/sysinfo/host/i686-unknown-linux.mk
@@ -1,4 +1,4 @@
 include $(PROJECT_DIR)/sysinfo/os/linux.mk
 
-HOST_BITS 	?= 32
-HOST_UNDERSCORE ?= '_'
+HOST_BITS 	= 32
+HOST_UNDERSCORE = '_'
diff --git a/sysinfo/host/i686-w64-mingw32.mk b/sysinfo/host/i686-w64-mingw32.mk
index 27fd5d1..c9071d0 100644
--- a/sysinfo/host/i686-w64-mingw32.mk
+++ b/sysinfo/host/i686-w64-mingw32.mk
@@ -1,4 +1,4 @@
 include $(PROJECT_DIR)/sysinfo/os/mingw.mk
 
-HOST_BITS 	?= 32
-HOST_UNDERSCORE ?= '_'
+HOST_BITS 	= 32
+HOST_UNDERSCORE = '_'
diff --git a/sysinfo/host/x86_64-nt64-midipix.mk b/sysinfo/host/x86_64-nt64-midipix.mk
index 159b63f..48cf304 100644
--- a/sysinfo/host/x86_64-nt64-midipix.mk
+++ b/sysinfo/host/x86_64-nt64-midipix.mk
@@ -1,4 +1,4 @@
 include $(PROJECT_DIR)/sysinfo/os/midipix.mk
 
-HOST_BITS 	?= 64
-HOST_UNDERSCORE ?= ''
+HOST_BITS 	= 64
+HOST_UNDERSCORE = ''
diff --git a/sysinfo/host/x86_64-unknown-linux.mk b/sysinfo/host/x86_64-unknown-linux.mk
index 24974da..d00a62d 100644
--- a/sysinfo/host/x86_64-unknown-linux.mk
+++ b/sysinfo/host/x86_64-unknown-linux.mk
@@ -1,4 +1,4 @@
 include $(PROJECT_DIR)/sysinfo/os/linux.mk
 
-HOST_BITS 	?= 64
-HOST_UNDERSCORE ?= ''
+HOST_BITS 	= 64
+HOST_UNDERSCORE = ''
diff --git a/sysinfo/host/x86_64-w64-mingw32.mk b/sysinfo/host/x86_64-w64-mingw32.mk
index 8bbed5d..6ff9c83 100644
--- a/sysinfo/host/x86_64-w64-mingw32.mk
+++ b/sysinfo/host/x86_64-w64-mingw32.mk
@@ -1,4 +1,4 @@
 include $(PROJECT_DIR)/sysinfo/os/mingw.mk
 
-HOST_BITS 	?= 64
-HOST_UNDERSCORE ?= ''
+HOST_BITS 	= 64
+HOST_UNDERSCORE = ''
diff --git a/sysinfo/os/bsd.mk b/sysinfo/os/bsd.mk
index ed6edbb..158c44b 100644
--- a/sysinfo/os/bsd.mk
+++ b/sysinfo/os/bsd.mk
@@ -1,9 +1,9 @@
-OS_APP_PREFIX 	?=
-OS_APP_SUFFIX 	?=
-OS_LIB_PREFIX 	?= lib
-OS_LIB_SUFFIX 	?= .so
-OS_IMPLIB_EXT 	?= .invalid
-OS_LIBDEF_EXT 	?= .invalid
-OS_ARCHIVE_EXT 	?= .a
+OS_APP_PREFIX 	=
+OS_APP_SUFFIX 	=
+OS_LIB_PREFIX 	= lib
+OS_LIB_SUFFIX 	= .so
+OS_IMPLIB_EXT 	= .invalid
+OS_LIBDEF_EXT 	= .invalid
+OS_ARCHIVE_EXT 	= .a
 
 .PHONY:		$(SHARED_IMPLIB)
diff --git a/sysinfo/os/linux.mk b/sysinfo/os/linux.mk
index ed6edbb..158c44b 100644
--- a/sysinfo/os/linux.mk
+++ b/sysinfo/os/linux.mk
@@ -1,9 +1,9 @@
-OS_APP_PREFIX 	?=
-OS_APP_SUFFIX 	?=
-OS_LIB_PREFIX 	?= lib
-OS_LIB_SUFFIX 	?= .so
-OS_IMPLIB_EXT 	?= .invalid
-OS_LIBDEF_EXT 	?= .invalid
-OS_ARCHIVE_EXT 	?= .a
+OS_APP_PREFIX 	=
+OS_APP_SUFFIX 	=
+OS_LIB_PREFIX 	= lib
+OS_LIB_SUFFIX 	= .so
+OS_IMPLIB_EXT 	= .invalid
+OS_LIBDEF_EXT 	= .invalid
+OS_ARCHIVE_EXT 	= .a
 
 .PHONY:		$(SHARED_IMPLIB)
diff --git a/sysinfo/os/midipix.mk b/sysinfo/os/midipix.mk
index db23f2e..3d0d181 100644
--- a/sysinfo/os/midipix.mk
+++ b/sysinfo/os/midipix.mk
@@ -1,10 +1,10 @@
-OS_APP_PREFIX 	?=
-OS_APP_SUFFIX 	?=
-OS_LIB_PREFIX 	?= lib
-OS_LIB_SUFFIX 	?= .so
-OS_IMPLIB_EXT 	?= .lib.a
-OS_LIBDEF_EXT 	?= .so.def
-OS_ARCHIVE_EXT 	?= .a
+OS_APP_PREFIX 	=
+OS_APP_SUFFIX 	=
+OS_LIB_PREFIX 	= lib
+OS_LIB_SUFFIX 	= .so
+OS_IMPLIB_EXT 	= .lib.a
+OS_LIBDEF_EXT 	= .so.def
+OS_ARCHIVE_EXT 	= .a
 
 LDFLAGS_CONFIG	+= -mout-implib
 
diff --git a/sysinfo/os/mingw.mk b/sysinfo/os/mingw.mk
index 9350254..48078bd 100644
--- a/sysinfo/os/mingw.mk
+++ b/sysinfo/os/mingw.mk
@@ -1,10 +1,10 @@
-OS_APP_PREFIX 	?=
-OS_APP_SUFFIX 	?= .exe
-OS_LIB_PREFIX 	?= lib
-OS_LIB_SUFFIX 	?= .dll
-OS_IMPLIB_EXT 	?= .dll.a
-OS_LIBDEF_EXT 	?= .def
-OS_ARCHIVE_EXT 	?= .a
+OS_APP_PREFIX 	=
+OS_APP_SUFFIX 	= .exe
+OS_LIB_PREFIX 	= lib
+OS_LIB_SUFFIX 	= .dll
+OS_IMPLIB_EXT 	= .dll.a
+OS_LIBDEF_EXT 	= .def
+OS_ARCHIVE_EXT 	= .a
 
 CFLAGS_PIC 	=
 LDFLAGS_CONFIG	+= -Wl,--mout-implib,$(SHARED_IMPLIB)
diff --git a/sysinfo/toolchain/clang.mk b/sysinfo/toolchain/clang.mk
index 3e7bda3..bddb6b9 100644
--- a/sysinfo/toolchain/clang.mk
+++ b/sysinfo/toolchain/clang.mk
@@ -31,4 +31,4 @@ OBJCOPY 	= $(CROSS_COMPILE)objcopy
 READELF 	= $(CROSS_COMPILE)readelf
 
 
-CFLAGS_PIC 	?= -fPIC
+CFLAGS_PIC 	= -fPIC
diff --git a/sysinfo/toolchain/gcc.mk b/sysinfo/toolchain/gcc.mk
index 72ae0af..441a2ca 100644
--- a/sysinfo/toolchain/gcc.mk
+++ b/sysinfo/toolchain/gcc.mk
@@ -22,4 +22,4 @@ OBJCOPY 	= $(CROSS_COMPILE)objcopy
 READELF 	= $(CROSS_COMPILE)readelf
 
 
-CFLAGS_PIC 	?= -fPIC
+CFLAGS_PIC 	= -fPIC