Adding linux specific env implementation.
diff --git a/Makefile b/Makefile
index 7f4c7dc..2447aeb 100644
--- a/Makefile
+++ b/Makefile
@@ -1216,6 +1216,7 @@
src/core/support/cmdline.c \
src/core/support/cpu_linux.c \
src/core/support/cpu_posix.c \
+ src/core/support/env_linux.c \
src/core/support/env_posix.c \
src/core/support/env_win32.c \
src/core/support/file.c \
@@ -1310,6 +1311,7 @@
objs/$(CONFIG)/src/core/support/cmdline.o:
objs/$(CONFIG)/src/core/support/cpu_linux.o:
objs/$(CONFIG)/src/core/support/cpu_posix.o:
+objs/$(CONFIG)/src/core/support/env_linux.o:
objs/$(CONFIG)/src/core/support/env_posix.o:
objs/$(CONFIG)/src/core/support/env_win32.o:
objs/$(CONFIG)/src/core/support/file.o: