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Macros in makefiles may be overridden in the command-line arguments passed to the Make utility. Environment variables are also available as macros. For example, the macro CC is frequently used in makefiles to refer to the location of a C compiler. If used consistently throughout the makefile, then the compiler used can be changed by changing ...
make menuconfig was not in the first version of Linux. The predecessor tool is a question-and-answer-based utility (make config, make oldconfig). Variations of the tool for Linux configuration include: make xconfig, which requires Qt; make gconfig, which uses GTK+; make nconfig, which is similar to make menuconfig.
For the Autotools, the configure script logs status and errors to file config.log, and the command ./configure --help outputs command line help information. Often, a document with instructions is included with the codebase; often in a file named INSTALL. It can be helpful if the configure script fails.
This is a list of commands from the GNU Core Utilities for Unix environments. These commands can be found on Unix operating systems and most Unix-like operating systems. GNU Core Utilities include basic file, shell and text manipulation utilities. Coreutils includes all of the basic command-line tools that are expected in a POSIX system.
If they are not specified in the Makefile, then they will be read from the environment, if present. Tools like autoconf's ./configure script will usually pick them up from the environment and write them into the generated Makefiles. Some package install scripts, like SDL, allow CFLAGS settings to override their normal settings (instead of ...
In makefiles, a common target clobber means complete cleanup of all unnecessary files and directories produced by previous invocations of the make command. [4] It is a more severe target than clean and is commonly used to uninstall software. Some make-related commands invoke "make clobber" during their execution.
In Linux, if the script was executed by a regular user, the shell would attempt to execute the command rm -rf / as a regular user, and the command would fail. However, if the script was executed by the root user, then the command would likely succeed and the filesystem would be erased.
The configure script, when run, scans the build environment and generates a subordinate config.status script which, in turn, converts other input files and most commonly Makefile.in into output files (Makefile), which are appropriate for that build environment. Finally, the make program uses Makefile to generate executable programs from source ...