Merge branch 'improve-release-process' into maint
[automake.git] / m4 / init.m4
blob5e1bbe3b199168d61367912438cad4a6f9af830e
1 # Do all the work for Automake.                             -*- Autoconf -*-
3 # Copyright (C) 1996-2012 Free Software Foundation, Inc.
5 # This file is free software; the Free Software Foundation
6 # gives unlimited permission to copy and/or distribute it,
7 # with or without modifications, as long as this notice is preserved.
9 # This macro actually does too much.  Some checks are only needed if
10 # your package does certain things.  But this isn't really a big deal.
12 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
13 # AM_INIT_AUTOMAKE([OPTIONS])
14 # -----------------------------------------------
15 # The call with PACKAGE and VERSION arguments is the old style
16 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
17 # and VERSION should now be passed to AC_INIT and removed from
18 # the call to AM_INIT_AUTOMAKE.
19 # We support both call styles for the transition.  After
20 # the next Automake release, Autoconf can make the AC_INIT
21 # arguments mandatory, and then we can depend on a new Autoconf
22 # release and drop the old call support.
23 AC_DEFUN([AM_INIT_AUTOMAKE],
24 [AC_PREREQ([2.62])dnl
25 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
26 dnl the ones we care about.
27 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
28 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
29 AC_REQUIRE([AC_PROG_INSTALL])dnl
30 if test "`cd $srcdir && pwd`" != "`pwd`"; then
31   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
32   # is not polluted with repeated "-I."
33   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
34   # test to see if srcdir already configured
35   if test -f $srcdir/config.status; then
36     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
37   fi
40 # test whether we have cygpath
41 if test -z "$CYGPATH_W"; then
42   if (cygpath --version) >/dev/null 2>/dev/null; then
43     CYGPATH_W='cygpath -w'
44   else
45     CYGPATH_W=echo
46   fi
48 AC_SUBST([CYGPATH_W])
50 # Define the identity of the package.
51 dnl Distinguish between old-style and new-style calls.
52 m4_ifval([$2],
53 [AC_DIAGNOSE([obsolete],
54 [$0: two- and three-arguments forms are deprecated.  For more info, see:
55 http://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_INIT_AUTOMAKE-invocation])
56 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
57  AC_SUBST([PACKAGE], [$1])dnl
58  AC_SUBST([VERSION], [$2])],
59 [_AM_SET_OPTIONS([$1])dnl
60 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
61 m4_if(
62   m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
63   [ok:ok],,
64   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
65  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
66  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
68 _AM_IF_OPTION([no-define],,
69 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
70  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
72 # Some tools Automake needs.
73 AC_REQUIRE([AM_SANITY_CHECK])dnl
74 AC_REQUIRE([AC_ARG_PROGRAM])dnl
75 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
76 AM_MISSING_PROG([AUTOCONF], [autoconf])
77 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
78 AM_MISSING_PROG([AUTOHEADER], [autoheader])
79 AM_MISSING_PROG([MAKEINFO], [makeinfo])
80 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
81 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
82 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
83 # For better backward compatibility.  To be removed once Automake 1.9.x
84 # dies out for good.  For more background, see:
85 # <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
86 # <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
87 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
88 # We need awk for the "check" target.  The system "awk" is bad on
89 # some platforms.
90 AC_REQUIRE([AC_PROG_AWK])dnl
91 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
92 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
93 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
94               [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
95                              [_AM_PROG_TAR([v7])])])
96 _AM_IF_OPTION([no-dependencies],,
97 [AC_PROVIDE_IFELSE([AC_PROG_CC],
98                   [_AM_DEPENDENCIES([CC])],
99                   [m4_define([AC_PROG_CC],
100                              m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
101 AC_PROVIDE_IFELSE([AC_PROG_CXX],
102                   [_AM_DEPENDENCIES([CXX])],
103                   [m4_define([AC_PROG_CXX],
104                              m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
105 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
106                   [_AM_DEPENDENCIES([OBJC])],
107                   [m4_define([AC_PROG_OBJC],
108                              m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
109 dnl Support for Objective C++ was only introduced in Autoconf 2.65,
110 dnl but we still cater to Autoconf 2.62.
111 m4_ifdef([AC_PROG_OBJCXX],
112 [AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
113                   [_AM_DEPENDENCIES([OBJCXX])],
114                   [m4_define([AC_PROG_OBJCXX],
115                              m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])])dnl
117 _AM_IF_OPTION([silent-rules], [AC_REQUIRE([AM_SILENT_RULES])])dnl
118 dnl The 'parallel-tests' driver may need to know about EXEEXT, so add the
119 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This macro
120 dnl is hooked onto _AC_COMPILER_EXEEXT early, see below.
121 AC_CONFIG_COMMANDS_PRE(dnl
122 [m4_provide_if([_AM_COMPILER_EXEEXT],
123   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
126 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
127 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
128 dnl mangled by Autoconf and run in a shell conditional statement.
129 m4_define([_AC_COMPILER_EXEEXT],
130 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
133 # When config.status generates a header, we must update the stamp-h file.
134 # This file resides in the same directory as the config header
135 # that is generated.  The stamp files are numbered to have different names.
137 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
138 # loop where config.status creates the headers, so we can generate
139 # our stamp files there.
140 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
141 [# Compute $1's index in $config_headers.
142 _am_arg=$1
143 _am_stamp_count=1
144 for _am_header in $config_headers :; do
145   case $_am_header in
146     $_am_arg | $_am_arg:* )
147       break ;;
148     * )
149       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
150   esac
151 done
152 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])