Re: Using gcc
Re: Using gcc
- Subject: Re: Using gcc
- From: Alastair Houghton <email@hidden>
- Date: Fri, 28 Nov 2003 09:11:50 +0000
On 28 Nov 2003, at 01:57, Danny Swarzman wrote:
>
I want to compile a program to run as cgi using gcc. I have it working
>
with project builder but I need to be able to move it to another unix.
>
There are a lot of options for gcc. My case is simple, maybe someone
>
has done it.
>
>
I have one source file, main.cpp. I use standard libraries. Nothing
>
special.
This doesn't seem to be a Cocoa-related question. However, seeing as
it's pretty simple...
What you should really do is create a simple Makefile, the contents of
which should look something like:
# Makefile for my-cgi-program
CXXFLAGS=-g -W -Wall
SRCS=main.cpp
OBJS=$(SRCS:.cpp=.o)
.PHONY: all clean
all: my-cgi-program
clean:
$(RM) my-cgi-program $(OBJS)
my-cgi-program: $(OBJS)
$(CXX) $(LDFLAGS) $^ $(LDLIBS) -o $@
# If you have any other files (e.g. header files) on which main.o
depends, then you
# should add a rule to list them; Make will figure-out the
dependency between main.o
# and main.cpp automatically. e.g.
#
# main.o: main.cpp my-header-file.h my-other-header.h
Then you can just go to the directory containing Makefile and main.cpp
and type "make" at a prompt. The major advantage over just running the
compiler directly from the shell is that the Makefile records all of
the settings you want enabled for your program. The above Makefile
just enables debug symbols and all warnings; you might also want to
enable the optimiser (-Os is a reasonable choice on most platforms),
but that's up to you.
A few other quick comments:
1. ".cpp" isn't the standard extension for C++ code on UNIX. It came
from Windows, and, until fairly recently, wasn't supported even by GCC.
If you're using a non-GNU variant of make or a different compiler
(even an older version of GCC), you might have more luck if you rename
your file to "main.cc". (The reason people sometimes have problems is
that ".cpp" used to be used for preprocessed C code, not C++.)
2. You might find that using GNU make works better than the vendor's
make on whichever platform you're using; sometimes it's installed as
"gmake", rather than "make".
3. If you need to add include paths, add a line that says
"CPPFLAGS=-I<path> -I<other path>".
4. If you need to add linker flags, put them in LDFLAGS. Similarly,
add libraries to LDLIBS.
Kind regards,
Alastair.
[demime 0.98b removed an attachment of type application/pkcs7-signature which had a name of smime.p7s]
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