litecross: build target config logic into the makefile

leaving necessary configuration options for certain targets to the
user is error-prone and inconvenient. instead of configuration for
exact target string matchs in the sample config.mak, provide general
logic in the makefile itself which should cover all variants as well.

config.mak.dist

@@ -63,20 +63,3 @@
 # where to look for source files.
 
 # COMMON_CONFIG += --with-debug-prefix-map=$(PWD)=
-
-# The following are options needed to make certain targets work right.
-# They may be moved to main build logic rather than config.mak at some
-# point in the future.
-
-ifeq ($(TARGET),sh2eb-linux-muslfdpic)
-GCC_CONFIG += --with-cpu=mj2
-GCC_CONFIG += --enable-fdpic
-endif
-
-ifeq ($(TARGET),mips64-linux-musl)
-GCC_CONFIG += --with-abi=64
-endif
-
-ifeq ($(TARGET),arm-linux-musleabihf)
-GCC_CONFIG += --with-float=hard
-endif

litecross/Makefile

@@ -12,6 +12,31 @@ TOOLCHAIN_CONFIG = $(GCC_CONFIG)
 XGCC_DIR = ../obj_toolchain/gcc
 XGCC = $(XGCC_DIR)/xgcc -B $(XGCC_DIR)
 
+ifneq ($(findstring fdpic,$(TARGET)),)
+GCC_CONFIG += --enable-fdpic
+endif
+
+ifneq ($(filter x86_64%x32,$(TARGET)),)
+GCC_CONFIG += --with-abi=x32
+endif
+
+ifneq ($(findstring mips64,$(TARGET))$(findstring mipsisa64,$(TARGET)),)
+ifneq ($(findstring n32,$(TARGET)),)
+GCC_CONFIG += --with-abi=n32
+else
+GCC_CONFIG += --with-abi=64
+endif
+endif
+
+ifneq ($(filter %sf,$(TARGET)),)
+GCC_CONFIG += --with-float=soft
+endif
+
+ifneq ($(filter %hf,$(TARGET)),)
+GCC_CONFIG += --with-float=hard
+endif
+
+
 -include config.mak
 
 MAKE += MULTILIB_OSDIRNAMES=