diff --git a/core/combo/TARGET_linux-arm.mk b/core/combo/TARGET_linux-arm.mk
index 99b2f8c..bc78174 100644
--- a/core/combo/TARGET_linux-arm.mk
+++ b/core/combo/TARGET_linux-arm.mk
@@ -34,8 +34,10 @@
 TARGET_ARCH_VARIANT := armv5te
 endif
 
-ifeq ($(strip $(TARGET_GCC_VERSION)),)
+ifeq ($(strip $(TARGET_GCC_VERSION_EXP)),)
 TARGET_GCC_VERSION := 4.7
+else
+TARGET_GCC_VERSION := $(TARGET_GCC_VERSION_EXP)
 endif
 
 TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT).mk
diff --git a/core/combo/TARGET_linux-mips.mk b/core/combo/TARGET_linux-mips.mk
index dc28018..c549af9 100644
--- a/core/combo/TARGET_linux-mips.mk
+++ b/core/combo/TARGET_linux-mips.mk
@@ -34,8 +34,10 @@
 TARGET_ARCH_VARIANT := mips32r2-fp
 endif
 
-ifeq ($(strip $(TARGET_GCC_VERSION)),)
+ifeq ($(strip $(TARGET_GCC_VERSION_EXP)),)
 TARGET_GCC_VERSION := 4.6
+else
+TARGET_GCC_VERSION := $(TARGET_GCC_VERSION_EXP)
 endif
 
 TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT).mk
diff --git a/core/combo/TARGET_linux-x86.mk b/core/combo/TARGET_linux-x86.mk
index 187e2c2..01b5d02 100644
--- a/core/combo/TARGET_linux-x86.mk
+++ b/core/combo/TARGET_linux-x86.mk
@@ -22,8 +22,10 @@
 TARGET_ARCH_VARIANT := x86
 endif
 
-ifeq ($(strip $(TARGET_GCC_VERSION)),)
+ifeq ($(strip $(TARGET_GCC_VERSION_EXP)),)
 TARGET_GCC_VERSION := 4.6
+else
+TARGET_GCC_VERSION := $(TARGET_GCC_VERSION_EXP)
 endif
 
 # Include the arch-variant-specific configuration file.