This file, 'c.mkr', is the 'rules makefile' c.mkr contains the rules needed to process *.c source files.
# This file is:
# $(XMAKE_EXTENSIONS_DIR)/c.$(XMAKE_MAKEFILE_SUFFIX_RULES)

# xmake Extension: c
# SOURCE FILE PATTERNS: %.c
# DEPENDENCY MAKEFILE PATTERNS: %.c.mkdo
# OUTPUT FILE PATTERNS: %.o

# create the default pattern rules for files of this
# type:
# OUTPUT FILE
# DEPENDENCY MAKEFILES
$(eval $(call XME_patternRule,c))
$(eval $(call XME_mkdoPatternRule,c))

# these files are manually created
$(CC): ;