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Full Discussion: compile C under linux?
Top Forums Programming compile C under linux? Post 7190 by mbb on Thursday 20th of September 2001 10:42:52 AM
Old 09-20-2001
The C compiler does not know what to call your final executable, so it has defaulted the name to a.out.

It is unusual for the compiler to place the output in the /usr/bin directory, usually it is placed into your current directory.

Nearly all compiliers, including those on Unix and Linux will accept a number of command line switches and parameters. By using command line parameters you can change the behaviour of the compiler significantly. See for yourself by doing:

man cc

or

man gcc

This will give you a very lengthy description of what to expect from your compiler. Also read the man page on your linker.

man ld

Somewhere in that lot will be a way to change the output file name. If necessary you can give it an explicit path name.


Finally, if you did not realise it already, the a.out file is (or should be) a fully runnable executable. You can always rename it using the move or copy command!

Regards

MBB.
 

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LEARN ABOUT DEBIAN

sc-config

SC-CONFIG(1)						      General Commands Manual						      SC-CONFIG(1)

NAME

       sc-config - script to get information about the installed version of SC

SYNOPSIS

       sc-config  [--prefix[=DIR]  ]  [--exec-prefix[=DIR]  ]  [--version]  [--libs]  [--cppflags]  [--cc] [--cflags] [--cxx] [--cxxflags] [--f77]
       [--f77flags]

DESCRIPTION

       The sc-config program can be used to obtain the compilers, compiler options and libraries needed to use the SC (Scientific Computing) tool-
       kit from your program.

OPTIONS

       The sc-config program returns information about how SC was compiled and installed. The following information is available:

       --prefix
	       The directory where SC is installed.

       --version
	       The version of SC.

       --libdir
	       The directory were the libraries are found.

       --libs  The libraries and library paths needed to link.

       --cppflags
	       The include directories needed to build.

       --cc    The C compiler.

       --cflags
	       The C compiler flags.

       --cxx   The C++ compiler.

       --cxxflags
	       The C++ compiler flags.

       --f77   The FORTRAN 77 compiler.

       --f77flags
	       The FORTRAN 77 compiler flags.

EXAMPLES

       To use the sc-config program to link your executable to SC, use a Makefile for GNU make similar to the following:

	      SCCONFIG = /usr/bin/sc-config
	      CXX := $(shell $(SCCONFIG) --cxx)
	      CXXFLAGS := $(shell $(SCCONFIG) --cxxflags)
	      CPPFLAGS := $(shell $(SCCONFIG) --cppflags)
	      LIBS := $(shell $(SCCONFIG) --libs)

	      myprog: myprog.o
		      $(CXX) $(CXXFLAGS) -o $@ $^ $(LIBS)

Version 2							    15 Feb 2001 						      SC-CONFIG(1)
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