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158 GNU make
If possible, write the install target rule so that it does not modify anything in
the directory where the program was built, provided ‘make all’ has just been
done. This is convenient for building the program under one user name and
installing it under another.
The commands should create all the directories in which files are to be installed,
if they don’t already exist. This includes the directories specified as the values
of the variables prefix and exec_prefix, as well as all subdirectories that are
needed. One way to do this is by means of an installdirs target as described
below.
Use ‘-’ before any command for installing a man page, so that make will ignore
any errors. This is in case there are systems that don’t have the Unix man page
documentation system installed.
The way to install Info files is to copy them into $(infodir) with $(INSTALL_
DATA) (see Section 15.3 [Command Variables], page 151), and then run the
install-info program if it is present. install-info is a program that edits
the Info dir file to add or update the menu entry for the given Info file; it is
part of the Texinfo package.
Here is a sample rule to install an Info file that also tries to handle some
additional situations, such as install-info not being present.
do-install-info: foo.info installdirs
$(NORMAL_INSTALL)
# Prefer an info file in . to one in srcdir.
if test -f foo.info; then d=.; \
else d="$(srcdir)"; fi; \
$(INSTALL_DATA) $$d/foo.info \
"$(DESTDIR)$(infodir)/foo.info"
# Run install-info only if it exists.
# Use ‘if’ instead of just prepending ‘-’ to the
# line so we notice real errors from install-info.
# Use ‘$(SHELL) -c’ because some shells do not
# fail gracefully when there is an unknown command.
$(POST_INSTALL)
if $(SHELL) -c ’install-info --version’ \
>/dev/null 2>&1; then \
install-info --dir-file="$(DESTDIR)$(infodir)/dir" \
"$(DESTDIR)$(infodir)/foo.info"; \
else true; fi
When writing the install target, you must classify all the commands into
three categories: normal ones, pre-installation commands and post-installation
commands. See Section 15.7 [Install Command Categories], page 162.
‘install-html’
‘install-dvi’
‘install-pdf’
‘install-ps’
These targets install documentation in formats other than Info; they’re intended
to be called explicitly by the person installing the package, if that format is
desired. GNU prefers Info files, so these must be installed by the install
target.
- GNU Make 1
- Short Contents 5
- Table of Contents 7
- 1 Overview of make 11
- 2 An Introduction to Makefiles 13
- 2.2 A Simple Makefile 14
- 2.6 Another Style of Makefile 18
- 3 Writing Makefiles 21
- 3.1.1 Splitting Long Lines 22
- 3.3 Including Other Makefiles 23
- 3.4 The Variable MAKEFILES 24
- 3.5 How Makefiles Are Remade 24
- 3.7 How make Reads a Makefile 26
- Conditional Directives 27
- Rule Definition 27
- 3.8 Secondary Expansion 28
- 4 Writing Rules 31
- 4.2 Types of Prerequisites 32
- 4.3.1 Wildcard Examples 33
- 4.3.3 The Function wildcard 34
- 4.4.2 The vpath Directive 36
- 4.5 Phony Targets 39
- 4.11 Static Pattern Rules 46
- 4.12 Double-Colon Rules 48
- %.d: %.c 49
- @set -e; rm -f $@; \ 49
- 5 Writing Recipes in Rules 51
- 5.2 Recipe Echoing 53
- 5.3 Recipe Execution 54
- 5.3.2 Choosing the Shell 55
- 5.4 Parallel Execution 57
- 5.5 Errors in Recipes 59
- 5.7 Recursive Use of make 60
- 5.8 Defining Canned Recipes 66
- 5.9 Using Empty Recipes 67
- 6 How to Use Variables 69
- 6.3.1 Substitution References 72
- 6.3.2 Computed Variable Names 73
- 6.5 Setting Variables 75
- 6.7 The override Directive 78
- 6.9 Undefining Variables 79
- 6.13 Suppressing Inheritance 82
- 6.14 Other Special Variables 83
- 7.1 Example of a Conditional 87
- 7.2 Syntax of Conditionals 88
- 8.1 Function Call Syntax 93
- 8.3 Functions for File Names 97
- 8.5 The foreach Function 100
- 8.6 The file Function 101
- 8.7 The call Function 102
- 8.8 The value Function 103
- 8.9 The eval Function 103
- 8.10 The origin Function 104
- 8.11 The flavor Function 105
- 8.14 The guile Function 107
- 8.13 The shell Function 107
- 9 How to Run make 109
- 9.5 Overriding Variables 113
- 9.7 Summary of Options 114
- 10 Using Implicit Rules 121
- 10.4 Chains of Implicit Rules 127
- 10.5.2 Pattern Rule Examples 129
- 10.5.3 Automatic Variables 130
- 10.5.4 How Patterns Match 132
- 10.7 Old-Fashioned Suffix Rules 135
- 12 Extending GNU make 143
- 12.2 Loading Dynamic Objects 145
- 12.2.1 The load Directive 146
- Loaded Object Licensing 147
- Data Structures 148
- Registering Functions 148
- Registered Function Interface 148
- GNU make Facilities 148
- Memory Management 149
- 12.2.4 Example Loaded Object 149
- 13 Features of GNU make 153
- 15 Makefile Conventions 159
- 15.2 Utilities in Makefiles 160
- CFLAGS = -g 161
- ALL_CFLAGS = -I. $(CFLAGS) 161
- Appendix A Quick Reference 175
- Index of Concepts 201
- 192 GNU make 202
- Index of Concepts 193 203
- 194 GNU make 204
- Index of Concepts 195 205
- 196 GNU make 206
- Index of Concepts 197 207
- 198 GNU make 208
- 200 GNU make 210
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