Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Makefile Mix for C and C++
Top Forums Shell Programming and Scripting Makefile Mix for C and C++ Post 302702957 by hfbrando on Wednesday 19th of September 2012 06:54:52 AM
Old 09-19-2012
Makefile Mix for C and C++
Hi everyone,
I'm new in this forum. I hope you could help me with this code.
I'm trying to include in an ANSI C project, some (OpenCV) libraries made in C++.
When I included those libraries, the compiler threw the following error:

ardrone_testing_tool.c: (.text+0x1212) : undefined reference to `cvSURFParams'
ardrone_testing_tool.c: (.text+0x126f) : undefined reference to `cvExtractSURF'

Basically people told me to change the compiler to the g++ (if anyone think about a better solution, please tell me. However, I think I'll have to edit the Makefile of the project...). The main Makefile of the project uses some standard variables like MAKE, which calls recursively another makefile, in the folder VP_SDK/Build.

In that folder, the other makefile has some sections which calls again another makefiles to configure variables and so on. Finally it calls generic.makefile which sets the compiler and does the compilation.
The point is that now, when I changed the word gcc by g++ the compilation didn't work (the original version which had worked with the gcc).
The error that it gives is the following:

../../VLIB/video_codec.c: In function ‘int video_codec_open_private(video_controller_t*, codec_type_t, int32_t)':
../../VLIB/video_codec.c:75: error: invalid conversion from ‘void*' to ‘video_macroblock_t*'
../../VLIB/video_codec.c: In function ‘int video_codec_type_select(video_controller_t*, video_stream_t*)':
../../VLIB/video_codec.c:190: error: invalid conversion from ‘uint32_t' to ‘codec_type_t'
../../VLIB/video_codec.c:190: error: initializing argument 2 of ‘int video_codec_open_private(video_controller_t*, codec_type_t, int32_t)'
../../VLIB/video_codec.c: In function ‘int video_encode_picture(video_controller_t*, const vp_api_picture_t*, int32_t*)':
../../VLIB/video_codec.c:198: error: invalid conversion from ‘int' to ‘PixelFormat'
../../VLIB/video_codec.c: In function ‘int video_decode_picture(video_controller_t*, vp_api_picture_t*, video_stream_t*, int32_t*)':
../../VLIB/video_codec.c:237: error: invalid conversion from ‘int' to ‘PixelFormat'

That is, an error previously hadn't detected by the gcc.
So, I think maybe I should differentiate in the code the treatment of .cpp files and the other files.

Below in the post you will see some parts of the code. In the macro INTERNAL_SOURCE_EXTENSIONS, there are defined the extensions .c .S .s .cpp. You can see also that there are some other macros that depend on that... For example INTERNAL_BINARIES_COMMON_TARGET_OFILES, which after is used to do different things (and compilation of course).
Anyway, I'm thinking of doing something like duplicating some macros, to do the compilation in two parts (on one side .c .S .s and on the other .cpp).
I don't know much about makefiles, so I would like to know what do you think about that. Is that convinient to do? There is another better or easier way to make it work?
Here I show you some lines of the file generic.makefile, but I could put all the code if you think is necessary.
I will be really appreciated if you give me some help. May be for some of you is not quite difficult to see the changes that has to be made in the complete version of the code.

Code:
INTERNAL_SOURCE_EXTENSIONS= .c .S .s .cpp

INTERNAL_MKDIR=mkdir -p
INTERNAL_ECHO=echo

# (in) GENERIC_COMMAND_PREFIX
INTERNAL_CC:=$(GENERIC_COMMAND_PREFIX)gcc
INTERNAL_AR:=$(GENERIC_COMMAND_PREFIX)ar
INTERNAL_OBJCOPY:=$(GENERIC_COMMAND_PREFIX)objcopy
INTERNAL_STRIP:=$(GENERIC_COMMAND_PREFIX)strip

# (in) GENERIC_CFLAGS    # (in) GENERIC_LDFLAGS
# (in) GENERIC_ARFLAGS     # (in) GENERIC_INCLUDES
# (in) GENERIC_ADD_OFILES : for linking with     # (in) GENERIC_LIBRARY_SOURCE_DIR
# (in) GENERIC_LIBRARY_SOURCE_FILES     # (in) GENERIC_LIBRARY_TARGET_DIR : for .o files
INTERNAL_LIBRARY_SOURCE_FILES:=$(patsubst %,$(GENERIC_LIBRARY_SOURCE_DIR)/%,$(GENERIC_LIBRARY_SOURCE_FILES))
INTERNAL_LIBRARY_TARGET_OFILES:=$(foreach ext,$(INTERNAL_SOURCE_EXTENSIONS),\
	$(patsubst $(GENERIC_LIBRARY_SOURCE_DIR)/%$(ext),$(GENERIC_LIBRARY_TARGET_DIR)/%.o,$(filter %$(ext),$(INTERNAL_LIBRARY_SOURCE_FILES))))

# (in) GENERIC_BINARIES_SOURCE_DIR   # (in) GENERIC_BINARIES_COMMON_SOURCE_FILES   # (in) GENERIC_BINARIES_SOURCE_ENTRYPOINTS    # (in) GENERIC_BINARIES_TARGET_DIR : for .o files

INTERNAL_BINARIES_COMMON_SOURCE_FILES:=$(patsubst %,$(GENERIC_BINARIES_SOURCE_DIR)/%,$(GENERIC_BINARIES_COMMON_SOURCE_FILES))
INTERNAL_BINARIES_COMMON_TARGET_OFILES:=$(foreach ext,$(INTERNAL_SOURCE_EXTENSIONS),\
	$(patsubst $(GENERIC_BINARIES_SOURCE_DIR)/%$(ext),$(GENERIC_BINARIES_TARGET_DIR)/%.o,$(filter %$(ext),$(INTERNAL_BINARIES_COMMON_SOURCE_FILES))))
INTERNAL_BINARIES_TARGET_OENTRYPOINTS:=$(foreach ext,$(INTERNAL_SOURCE_EXTENSIONS),\
	$(patsubst %$(ext),$(GENERIC_BINARIES_TARGET_DIR)/%.o,$(filter %$(ext),$(GENERIC_BINARIES_SOURCE_ENTRYPOINTS))))

===================================

Code:
ifeq ($(USE_DLL),yes)
	$(GENERIC_COMMAND_PREFIX)dlltool -e $(GENERIC_TARGET_BINARIES_DIR)/$(DLL_ID)_exports.o --export-all-symbols -l $(@:.dll=.lib) $(INTERNAL_BINARIES_COMMON_TARGET_OFILES)
	$(INTERNAL_CC) --shared -o $@ $(INTERNAL_BINARIES_COMMON_TARGET_OFILES) $(GENERIC_TARGET_BINARIES_DIR)/$(DLL_ID)_exports.o $(GENERIC_ADD_OFILES) $(GENERIC_LIB_PATHS) $(GENERIC_LIBS) $(GENERIC_LDFLAGS) $(LDFLAGS_$(subst /,_,$*))
	$(RM) $(GENERIC_TARGET_BINARIES_DIR)/$(DLL_ID)_exports.o
  else
	$(INTERNAL_CC) -o $@ $(GENERIC_BINARIES_TARGET_DIR)/$*.o $(INTERNAL_BINARIES_COMMON_TARGET_OFILES) $(GENERIC_ADD_OFILES) $(GENERIC_LIB_PATHS) $(GENERIC_LIBS) $(GENERIC_LDFLAGS) $(LDFLAGS_$(subst /,_,$*))
  endif

===================================

Code:
# Build rules for each extension
$(foreach ext,$(INTERNAL_SOURCE_EXTENSIONS),$(eval $(call BUILD_OFILE_TEMPLATE,LIBRARY,$(ext))))
$(foreach ext,$(INTERNAL_SOURCE_EXTENSIONS),$(eval $(call BUILD_OFILE_TEMPLATE,BINARIES,$(ext))))

ifneq ($(MAKECMDGOALS),clean)
ifneq ($(MAKECMDGOALS),check)
  -include $(INTERNAL_LIBRARY_DEPFILES) $(INTERNAL_BINARIES_DEPFILES)
endif
endif

Thank You all for any comments that you could give me.

Best Regards,

Hernán.
 

8 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to grep mix of numbers and systemdate?

Hi Guys, i'm beginner in UNIX commands, need some help on this simple question: I need to make a shell script to move files to another directory, the criterias are : 1. the range of 4 last digit of the file name is 0100-0199 2. move all files that processed daily (let's say today is... (2 Replies)
Discussion started by: saltshaker
2 Replies

2. AIX

mix fc and tape devices

I have a problem with some partitions. In one of them I have this two fiber channel. lsdev -Cc adapter ent0 Available 03-08 10/100/1000 Base-TX PCI-X Adapter (14106902) fcs0 Available 04-08 FC Adapter fcs1 Available 05-08 FC Adapter ide0 Defined 07-08 ATA/IDE... (0 Replies)
Discussion started by: lo-lp-kl
0 Replies

3. UNIX for Advanced & Expert Users

Makefile problem - How to run module load in a Makefile

Hi, I'm trying to run the module load command in a Makefile and i'm getting the following error: make: module: command not found Why is this? Is there any way to run this command in a Makefile? NOTE: command - module load msjava/sunjdk/1.5.0 works fine outside of the Makefile (2 Replies)
Discussion started by: hernandinho
2 Replies

4. Solaris

ZFS Pool Mix-up

Hi all I plan to install Solaris 10U6 on some SPARC server using ZFS as root pool, whereas I would like to keep the current setup done by VxVM: - 2 internal disks: c0t0d0 and c0t1d0 - bootable root-volume (mirrored, both disks) - 1 non-mirrored swap slice - 1 non-mirrored slices for Live... (1 Reply)
Discussion started by: blicki
1 Replies

5. Shell Programming and Scripting

How to mix the contents of 2 files into a new file?

Hello Everybody! My question is how can I mix for example file_a with file_b in the following method: After 2 lines of file_a put 2 lines from file_b to file_c. For example: file_a: 1 2 3 4 5 6 file_b: 11 22 (7 Replies)
Discussion started by: Levi85
7 Replies

6. Homework & Coursework Questions

Help with Simple Multi-Level Makefile (Extremely New at Makefile)

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: Basically, the prompt is make a makefile with various sub makefiles in their respective subdirectories. All code... (1 Reply)
Discussion started by: Tatl
1 Replies

7. Programming

makefile for mix of C and C++ modules

I am trying to come up with a makefile where the target is linked with object files produced by C and C++ sources. My setup is Ubuntu/gcc: $ uname -a Linux srvr1 2.6.24-24-server #1 SMP Fri Sep 18 17:24:10 UTC 2009 i686 GNU/Linux gcc version 4.2.4 $ cat main.cpp #include <iostream>... (6 Replies)
Discussion started by: migurus
6 Replies

8. AIX

Mix LDAP and LOCAL user on AIX

Hello, I'm currently trying to mix local and LDAP users on an AIX 7.1. I've triied many things. My LDAP Server in on a CentOS - OpenLDAP (which works fine with linux). I'm currently stuck on AIX at how to declare LDAP AND Local users. Here's what i did : /usr/sbin/mksecldap -c -h 'ldap03'... (15 Replies)
Discussion started by: AIX_user_324891
15 Replies
All times are GMT -4. The time now is 10:02 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy