Makefile: Add a CMakeLists.txt that uses the regular Makefile to compute flags…

Makefile: Add a CMakeLists.txt that uses the regular Makefile to compute flags and source file. This is a ugly hack, mainly to allow the use of CLion with ABC. Include some changes in the Makefile to support that.

.hgignore

@@ -46,6 +46,9 @@ src/python/bdist
 src/python/pyabc.py
 src/python/pyabc_wrap.*
 
+.idea/
+build/
+
 syntax: regexp
 
 ^libabc.a$

CMakeLists.txt

+cmake_minimum_required(VERSION 3.1.0)
+
+project(abc)
+
+execute_process(
+  COMMAND make ABC_MAKE_NO_DEPS=1 cmake_info
+  WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+  OUTPUT_VARIABLE MAKE_OUTPUT
+)
+
+function(extract_var SEPARATOR DEST_VARIABLE MAKE_OUTPUT)
+
+  string(REGEX MATCH "${SEPARATOR} .* ${SEPARATOR}" TMP "${MAKE_OUTPUT}")
+  string(REGEX REPLACE "${SEPARATOR} (.*) ${SEPARATOR}" "\\1" TMP "${TMP}")
+
+  separate_arguments(TMP)
+
+  set(${DEST_VARIABLE} ${TMP} PARENT_SCOPE)
+
+endfunction()
+
+extract_var(SEPARATOR_SRC ABC_SRC ${MAKE_OUTPUT})
+extract_var(SEPARATOR_LIBS ABC_LIBS ${MAKE_OUTPUT})
+extract_var(SEPARATOR_CFLAGS ABC_CFLAGS ${MAKE_OUTPUT})
+
+add_executable(abc ${ABC_SRC})
+
+target_include_directories(abc PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src )
+target_compile_options(abc PRIVATE ${ABC_CFLAGS} )
+target_link_libraries(abc PRIVATE ${ABC_LIBS})

Makefile

@@ -125,7 +125,7 @@ CXXFLAGS += $(CFLAGS)
 SRC  :=
 GARBAGE := core core.* *.stackdump ./tags $(PROG) arch_flags
 
-.PHONY: all default tags clean docs
+.PHONY: all default tags clean docs cmake_info
 
 include $(patsubst %, %/module.make, $(MODULES))
 
@@ -163,7 +163,9 @@ DEP := $(OBJ:.o=.d)
 	@echo "$(MSG_PREFIX)\`\` Generating dependency:" $(LOCAL_PATH)/$<
 	$(VERBOSE)./depends.sh $(CXX) `dirname $*.cpp` $(OPTFLAGS) $(INCLUDES) $(CXXFLAGS) $*.cpp > $@
 
+ifndef ABC_MAKE_NO_DEPS
 -include $(DEP)
+endif
 
 # Actual targets
 
@@ -188,3 +190,8 @@ lib$(PROG).a: $(OBJ)
 docs:
 	@echo "$(MSG_PREFIX)\`\` Building documentation." $(notdir $@)
 	$(VERBOSE)doxygen doxygen.conf
+
+cmake_info:
+	@echo SEPARATOR_CFLAGS $(CFLAGS) SEPARATOR_CFLAGS
+	@echo SEPARATOR_LIBS $(LIBS) SEPARATOR_LIBS
+	@echo SEPARATOR_SRC $(SRC) SEPARATOR_SRC