C++ 如何从Makefile中的其他目录导入所有源代码和头文件
我对makefiles非常不熟悉,我正试图弄清楚如何在项目中设置googletest和makefile。如何将项目中可以在其他目录中找到的所有源文件和头文件导入makefile构建,以便我可以访问测试文件中的头文件 结构看起来像这样C++ 如何从Makefile中的其他目录导入所有源代码和头文件,c++,makefile,header-files,googletest,makefile-project,C++,Makefile,Header Files,Googletest,Makefile Project,我对makefiles非常不熟悉,我正试图弄清楚如何在项目中设置googletest和makefile。如何将项目中可以在其他目录中找到的所有源文件和头文件导入makefile构建,以便我可以访问测试文件中的头文件 结构看起来像这样 project_root/ commons/core/{lots of files} commons/backends/{lots of files} os/core/{lots of file
project_root/
commons/core/{lots of files}
commons/backends/{lots of files}
os/core/{lots of files}
public/os/{lots of files}
wsi/comp/{lots of files}
tests/googletests/[Makefile tests/ include/ src/] # where I am testing from.
我想让tests/googletests/tests/中的文件可以访问所有的.h和.cpp文件,但我不确定如何使用Makefile
在tests文件夹中,我使用sample1.h、sample1.cc和sample1_unnitetest.cc来尝试从以下位置加载头文件:
我正在使用的makefile是:
# A sample Makefile for building Google Test and using it in user
# tests. Please tweak it to suit your environment and project. You
# may want to move it to your project's root directory.
#
# SYNOPSIS:
#
# make [all] - makes everything.
# make TARGET - makes the given target.
# make clean - removes all files generated by make.
# Please tweak the following variable definitions as needed by your
# project, except GTEST_HEADERS, which you can use in your own targets
# but shouldn't modify.
# Points to the root of Google Test, relative to where this file is.
# Remember to tweak this if you move this file.
GTEST_DIR = .
# Where to find user code.
USER_DIR = ./tests
# Flags passed to the preprocessor.
# Set Google Test's header directory as a system directory, such that
# the compiler doesn't generate warnings in Google Test headers.
CPPFLAGS += -isystem $(GTEST_DIR)/include
# Flags passed to the C++ compiler.
CXXFLAGS += -g -Wall -Wextra -pthread
# All tests produced by this Makefile. Remember to add new tests you
# created to the list.
TESTS = sample1_unittest
# All Google Test headers. Usually you shouldn't change this
# definition.
GTEST_HEADERS = $(GTEST_DIR)/include/gtest/*.h \
$(GTEST_DIR)/include/gtest/internal/*.h
# House-keeping build targets.
all : $(TESTS)
clean :
rm -f $(TESTS) gtest.a gtest_main.a *.o
# Builds gtest.a and gtest_main.a.
# Usually you shouldn't tweak such internal variables, indicated by a
# trailing _.
GTEST_SRCS_ = $(GTEST_DIR)/src/*.cc $(GTEST_DIR)/src/*.h $(GTEST_HEADERS)
# For simplicity and to avoid depending on Google Test's
# implementation details, the dependencies specified below are
# conservative and not optimized. This is fine as Google Test
# compiles fast and for ordinary users its source rarely changes.
gtest-all.o : $(GTEST_SRCS_)
$(CXX) $(CPPFLAGS) -I$(GTEST_DIR) $(CXXFLAGS) -c \
$(GTEST_DIR)/src/gtest-all.cc
gtest_main.o : $(GTEST_SRCS_)
$(CXX) $(CPPFLAGS) -I$(GTEST_DIR) $(CXXFLAGS) -c \
$(GTEST_DIR)/src/gtest_main.cc
gtest.a : gtest-all.o
$(AR) $(ARFLAGS) $@ $^
gtest_main.a : gtest-all.o gtest_main.o
$(AR) $(ARFLAGS) $@ $^
# Builds a sample test. A test should link with either gtest.a or
# gtest_main.a, depending on whether it defines its own main()
# function.
sample1.o : $(USER_DIR)/sample1.cc $(USER_DIR)/sample1.h $(GTEST_HEADERS)
$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c $(USER_DIR)/sample1.cc
sample1_unittest.o : $(USER_DIR)/sample1_unittest.cc \
$(USER_DIR)/sample1.h $(GTEST_HEADERS)
$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c $(USER_DIR)/sample1_unittest.cc
sample1_unittest : sample1.o sample1_unittest.o gtest_main.a
$(CXX) $(CPPFLAGS) $(CXXFLAGS) -lpthread $^ -o $@
你还没有给我们,但这可能足够了:
PROJECT_ROOT := ../../..
# or you can use an absolute path
OTHER_DIRS := $(addprefix $(PROJECT_ROOT)/, commons/core commons/backends os/core public/os wsi/comp)
VPATH = $(OTHER_DIRS)
CPPFLAGS += $(addprefix -I, $(OTHER_DIRS))
现在,您可以构建一个新的测试:
something.o : something.cc whatever.h $(GTEST_HEADERS)
$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c $<
something_unittest.o : $(USER_DIR)/something_unittest.cc whatever.h $(GTEST_HEADERS)
$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c $<
something_unittest : something.o something_unittest.o gtest_main.a
$(CXX) $(CPPFLAGS) $(CXXFLAGS) -lpthread $^ -o $@
something.o:something.cc whatever.h$(GTEST\u标题)
$(CXX)$(CPPFLAGS)$(CXXFLAGS)-c$<
something\u unittest.o:$(USER\u DIR)/something\u unittest.cc whatever.h$(GTEST\u头)
$(CXX)$(CPPFLAGS)$(CXXFLAGS)-c$<
某物,某物,某物,某物,某物,某物,某物,某物,某物
$(CXX)$(CPPFLAGS)$(CXXFLAGS)-lpthread$^-o$@
如果这不起作用,我们可以调查和调整。一旦这一点起作用,进一步的改进是可能的。您不想改用CMake吗?