HP-UX Reference (11i v1 05/09) - 1 User Commands A-M (vol 1)

m
make(1) make(1)
International Code Set Support
Single and multi-byte character code sets are supported.
RETURN VALUE
make returns a 0 upon successful completion or a value greater than 0 if an error occurred. If the
-q
option is specified, make returns 0 if the target was up-to-date and a value greater than 0 if the target was
not up-to-date.
EXAMPLES
The following example creates an executable file from a C source code file without a makefile, if program.c
exists in the current directory:
make program
The following example shows more than one makefile specified and some command line macros defined,
and updates the first target in module1:
make -f module1 -f module2 RELEASE=1.0 CFLAGS=-g
The following example updates two targets in a default makefile currently residing in the current directory:
make clobber prog
The following example updates the prog target in a specified makefile, allows environment variables to
override any common variables in the makefile, clears the built-in suffix list and ignore the built-in rules,
and outputs exhaustive debugging information:
make -erd -f module1 prog
WARNINGS
Be wary of any file (such as an include file) whose access, modification, and last change times cannot be
altered by the make-ing process. For example, if a program depends on an include file that in turn
depends on another include file, and if one or both of these files are out-of-date,
make tries to update these
files each time it is run, thus unnecessarily re-
makeing up-to-date files that are dependent on the include
file. The solution is to manually update these files with the
touch command before running
make (see
touch(1)).
Some commands return non-zero status inappropriately; use
-i to overcome the difficulty.
File names with the characters =:@$do not work.
Built-in commands that are directly executed by the shell such as
cd (see cd(1)), are ineffectual across
new-lines in
make.
The syntax (lib(file1.o file2.o file3.o) is illegal.
You cannot build lib(file.o) from file.o.
The macro $(a:.o=.c˜) does not work.
Expanded target lines cannot contain more than 16384 characters, including the terminating new-line.
If no makefile exists in the current directory, typing
make filename
results in make attempting to build filename from filename.c
If make is invoked in a shell script with a quoted argument that evaluates to NULL (such as $@), make
fails.
DEPENDENCIES
NFS Warning:
When comparing modification times of files located on different NFS servers, make behaves unpredictably
if the clocks on the servers are not synchronized.
FILES
[Mm]akefile
s.
[Mm]akefile
SCCS/s.
[Mm]akefile
HP-UX 11i Version 1: September 2005 − 10 − Hewlett-Packard Company Section 1−−537