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+.TH MAKEDEFS 1
+.ad
+.fi
+.SH NAME
+makedefs
+\-
+Postfix makefile configuration utility
+.SH "SYNOPSIS"
+.na
+.nf
+\fBmake makefiles \fIname=value...\fR
+.SH DESCRIPTION
+.ad
+.fi
+The \fBmakedefs\fR command identifies the compilation
+environment, and emits macro definitions on the standard
+output stream that can be prepended to template Makefiles.
+These macros implement an internal interface and are subject
+to change without notice.
+.SH "NAME=VALUE OVERRIDES"
+.na
+.nf
+.ad
+.fi
+Default settings can be overruled by specifying them as
+environment variables (or as name=value pairs on the "make"
+command line). Use quotes if variables contain whitespace
+or shell meta characters.
+
+The command "\fBmake makefiles name=value...\fR" will replace
+the string \fBMAIL_VERSION\fR at the end of a value with the
+Postfix version (\fImajor.minor.patchlevel\fR for a stable
+release, \fImajor.minor\-date\fR for a development release).
+Do not try to specify something like \fB$mail_version\fR:
+that produces inconsistent results with different implementations
+of the make(1) command.
+.IP \fBAUXLIBS=\fIobject_library...\fR
+Specifies one or more non\-default object libraries. Postfix
+3.0 and later specify some of their database library
+dependencies with AUXLIBS_CDB, AUXLIBS_LDAP, AUXLIBS_LMDB,
+AUXLIBS_MYSQL, AUXLIBS_PCRE, AUXLIBS_PGSQL, AUXLIBS_SDBM,
+and AUXLIBS_SQLITE, respectively.
+.IP \fBCC=\fIcompiler_command\fR
+Specifies a non\-default compiler. On many systems, the default
+is \fBgcc\fR.
+.IP \fBCCARGS=\fIcompiler_arguments\fR
+Specifies non\-default compiler arguments, for example, a non\-default
+\fIinclude\fR directory.
+The following directives are special:
+.RS
+.IP \fB\-DNO_DB\fR
+Do not build with Berkeley DB support.
+.IP \fB\-DNO_DEVPOLL\fR
+Do not build with Solaris /dev/poll support.
+By default, /dev/poll support is compiled in on platforms that
+are known to support it.
+.IP \fB\-DNO_DNSSEC\fR
+Do not build with DNSSEC support, even if the resolver
+library appears to support it.
+.IP \fB\-DNO_EPOLL\fR
+Do not build with Linux EPOLL support.
+By default, EPOLL support is compiled in on platforms that
+are known to support it.
+.IP \fB\-DNO_EAI\fR
+Do not build with EAI (SMTPUTF8) support. By default, EAI
+support is compiled in when the "pkg\-config" command is
+found, or the deprecated "icu\-config" command.
+.IP \fB\-DNO_INLINE\fR
+Do not require support for C99 "inline" functions. Instead,
+implement argument typechecks for non\-(printf/scanf)\-like
+functions with ternary operators and unreachable code.
+.IP \fB\-DNO_IPV6\fR
+Do not build with IPv6 support.
+By default, IPv6 support is compiled in on platforms that
+are known to have IPv6 support.
+
+Note: this directive is for debugging and testing only. It
+is not guaranteed to work on all platforms. If you don't
+want IPv6 support, set "inet_protocols = ipv4" in main.cf.
+.IP \fB\-DNO_IP_CYRUS_SASL_AUTH\fR
+Don't pass remote SMTP client and Postfix SMTP server IP
+address and port information to the Cyrus SASL library.
+This is compatible with Postfix < 3.2.
+.IP \fB\-DNO_KQUEUE\fR
+Do not build with FreeBSD/NetBSD/OpenBSD/MacOSX KQUEUE support.
+By default, KQUEUE support is compiled in on platforms that
+are known to support it.
+.IP \fB\-DNO_NIS\fR
+Do not build with NIS or NISPLUS support. Support for NIS
+is unavailable on some recent Linux distributions.
+.IP \fB\-DNO_NISPLUS\fR
+Do not build with NISPLUS support. Support for NISPLUS
+is unavailable on some recent Solaris distributions.
+.IP \fB\-DNO_PCRE\fR
+Do not build with PCRE support.
+By default, PCRE support is compiled in when the \fBpcre2\-config\fR
+or \fBpcre\-config\fR utility are installed.
+.IP \fB\-DNO_POSIX_GETPW_R\fR
+Disable support for POSIX getpwnam_r/getpwuid_r.
+.IP \fB\-DNO_RES_NCALLS\fR
+Do not build with the threadsafe resolver(5) API (res_ninit() etc.).
+.IP \fB\-DNO_SIGSETJMP\fR
+Use setjmp()/longjmp() instead of sigsetjmp()/siglongjmp().
+By default, Postfix uses sigsetjmp()/siglongjmp() when they
+appear to work.
+.IP \fB\-DNO_SNPRINTF\fR
+Use sprintf() instead of snprintf(). By default, Postfix
+uses snprintf() except on ancient systems.
+.RE
+.IP \fBDEBUG=\fIdebug_level\fR
+Specifies a non\-default debugging level. The default is \fB\-g\fR.
+Specify \fBDEBUG=\fR to turn off debugging.
+.IP \fBOPT=\fIoptimization_level\fR
+Specifies a non\-default optimization level. The default is \fB\-O\fR.
+Specify \fBOPT=\fR to turn off optimization.
+.IP \fBPOSTFIX_INSTALL_OPTS=\fI\-option...\fR
+Specifies options for the postfix\-install command, separated
+by whitespace. Currently, the only supported option is
+\fB\-keep\-build\-mtime\fR.
+.IP \fBSHLIB_CFLAGS=\fIflags\fR
+Override the compiler flags (typically, "\-fPIC") for Postfix
+dynamically\-linked libraries and database plugins.
+
+This feature was introduced with Postfix 3.0.
+.IP \fBSHLIB_RPATH=\fIrpath\fR
+Override the runpath (typically, "'\-Wl,\-rpath,${SHLIB_DIR}'")
+for Postfix dynamically\-linked libraries.
+
+This feature was introduced with Postfix 3.0.
+.IP \fBSHLIB_SUFFIX=\fIsuffix\fR
+Override the filename suffix (typically, ".so") for Postfix
+dynamically\-linked libraries and database plugins.
+
+This feature was introduced with Postfix 3.0.
+.IP \fBshared=yes\fR
+.IP \fBshared=no\fR
+Enable (disable) Postfix builds with dynamically\-linked
+libraries typically named $shlib_directory/libpostfix\-*.so.*.
+
+This feature was introduced with Postfix 3.0.
+.IP \fBdynamicmaps=yes\fR
+.IP \fBdynamicmaps=no\fR
+Enable (disable) Postfix builds with the configuration file
+$meta_directory/dynamicmaps.cf and dynamically\-loadable
+database plugins typically named postfix\-*.so.*. The setting
+"dynamicmaps=yes" implicitly enables Postfix dynamically\-linked
+libraries.
+
+This feature was introduced with Postfix 3.0.
+.IP \fBpie=yes\fR
+.IP \fBpie=no\fR
+Enable (disable) Postfix builds with position\-independent
+executables, on platforms where this is supported.
+
+This feature was introduced with Postfix 3.0.
+.IP \fIinstallation_parameter\fB=\fIvalue\fR...
+Override the compiled\-in default value of the specified
+installation parameter(s). The following parameters are
+supported in this context:
+
+command_directory config_directory daemon_directory
+data_directory default_database_type html_directory
+mail_spool_directory mailq_path manpage_directory meta_directory
+newaliases_path queue_directory readme_directory sendmail_path
+shlib_directory openssl_path
+
+See the postconf(5) manpage for a description of these
+parameters.
+
+This feature was introduced with Postfix 3.0.
+.IP \fBWARN=\fIwarning_flags\fR
+Specifies non\-default gcc compiler warning options for use when
+"make" is invoked in a source subdirectory only.
+.SH "LICENSE"
+.na
+.nf
+.ad
+.fi
+The Secure Mailer license must be distributed with this software.
+.SH "AUTHOR(S)"
+.na
+.nf
+Wietse Venema
+IBM T.J. Watson Research
+P.O. Box 704
+Yorktown Heights, NY 10598, USA
+
+Wietse Venema
+Google, Inc.
+111 8th Avenue
+New York, NY 10011, USA