3 # This script returns the flags to be fed to "aclocal" to ensure that
4 # it finds GLib's aclocal macros (we assume GTK+ is installed in the
5 # same place as GLib) and pkg-config's aclocal macros.
7 # aclocal will search, by default, only in a directory in the same
8 # tree where it was installed - e.g., if installed in "/usr/bin", it'll
9 # search only in "/usr/share/aclocal", and if installed in "/usr/local/bin",
10 # it'll search only in "/usr/local/share/aclocal".
12 # However, there is no guarantee that GLib, or pkg-config has been installed
13 # there; if either of them hasn't been installed there, aclocal won't find
14 # the autoconf macros for whichever of them wan't, and will complain
19 # if pkg-config is found with a path that ends with "bin/pkg-config",
20 # and the "share/local" directory under the directory at the path
21 # that's the part of the pkg-config path preceding "bin/pkg-config"
22 # isn't the same directory as the directory reported by "aclocal
23 # --print-ac-dir", we include in our output a "-I" flag with that
24 # directory as its argument;
26 # if the "share/local" directory under the directory reported by
27 # "pkg-config --variable=prefix glib-2.0" isn't the same directory
28 # as the directory reported by "aclocal --print-ac-dir", we include
29 # in our output a "-I" flag with the first of those directories as
32 # If either of them *is* the same directory as the directory reported by
33 # "aclocal --print-ac-dir", and we supply that "-I" flag, "aclocal" will
34 # look in that directory twice, and get well and truly confused, reporting
35 # a ton of duplicate macro definitions. This also means that if pkg-config
36 # and Glib are installed with the same prefix, we should only supply one
37 # "-I" flag for both of them.
41 # OK, where will aclocal look by default?
43 aclocal_dir=`aclocal --print-ac-dir`
46 # And where do we want to make sure it looks?
47 # Look for pkg-config first.
49 pkg_config_path=`command -v pkg-config 2>/dev/null`
50 if [ -z "$pkg_config_path" ]
53 # Either we don't have "command" (which is required by recent
54 # POSIX) or it didn't find pkg-config.
56 pkg_config_aclocal_dir=""
59 # OK, we found pkg-config; attempt to find the prefix for it, by
60 # stripping off "bin/pkg-config".
62 pkg_config_prefix=`expr "$pkg_config_path" : '\(.*\)/bin/pkg-config'`
63 if [ -z "$pkg_config_prefix" ]
66 # Well, we couldn't strip it off, for whatever reason.
68 pkg_config_aclocal_dir=""
71 # Solaris 11's default pkg-config installation puts
72 # it in /usr/ccs/bin, but there's no /usr/ccs/share.
73 # Map /usr/ccs to /usr.
75 # Ubuntu 7.10 has /usr/X11R6/bin as a symbolic link
76 # to /usr/bin, but there's no /usr/X11R6/share. If
77 # /usr/X11R6/bin is a symlink to /usr/bin, map
80 if [ "$pkg_config_prefix" = /usr/ccs ]
82 pkg_config_prefix=/usr
83 elif [ "$pkg_config_prefix" = /usr/X11R6 ]
85 if expr "`ls -ld /usr/X11R6/bin`" : '.*/usr/X11R6/bin -> .*/bin$' >/dev/null
87 pkg_config_prefix=/usr
92 # Now get the path of its aclocal directory.
94 pkg_config_aclocal_dir=$pkg_config_prefix/share/aclocal
99 # Now see where glib is installed.
101 glib_prefix=`pkg-config --variable=prefix glib-2.0 2>/dev/null`
104 # Now get the path of its aclocal directory.
106 if [ -z "$glib_prefix" ]
110 glib_aclocal_dir=$glib_prefix/share/aclocal
114 # Add our aclocal-fallback to the path.
115 # We write out the -I flag for it, and strip off CR and LF, as we may
116 # be writing more -I options, and we want all the options to be on
119 ac_missing_dir=`dirname $0`
120 echo "-I $ac_missing_dir/aclocal-fallback" | tr -d '\012' | tr -d '\015'
123 # If there's no aclocal, aclocal_dir, which is the path where aclocal
124 # searches, will be empty; if we didn't find pkg-config,
125 # pkg_config_aclocal_dir, which is the path where it should search
126 # for pkg-config's macros, will be empty. Add pkg_config_aclocal_dir only
127 # if both it and aclocal_dir are non-empty and different from each other.
129 if [ ! -z "$aclocal_dir" -a ! -z "$pkg_config_aclocal_dir" \
130 -a "$aclocal_dir" != "$pkg_config_aclocal_dir" ]
132 echo " -I $pkg_config_aclocal_dir" | tr -d '\012' | tr -d '\015'
136 # If pkg-config doesn't know about glib-2.0, glib_aclocal_dir will be
137 # empty. (Should we just fail in that case? Does that mean we don't
138 # have GLib installed?)
140 # Add glib_aclocal_dir only if both it and aclocal_dir are non-empty and
141 # different from each other *and* pkg_config_aclocal_dir is different from
142 # glib_aclocal_dir. (We don't need to check whether pkg_config_aclocal_dir
143 # is empty; if it is, then either glib_aclocal_dir is also empty, in which
144 # case we'll bail out before even looking at pkg_config_aclocal_dir, or
145 # it's non-empty, in which case it obviously won't be equal to
146 # pkg_config_aclocal_dir.)
148 if [ ! -z "$aclocal_dir" -a ! -z "$glib_aclocal_dir" \
149 -a "$aclocal_dir" != "$glib_aclocal_dir" \
150 -a "$pkg_config_aclocal_dir" != "$glib_aclocal_dir" ]
152 echo " -I $glib_aclocal_dir" | tr -d '\012' | tr -d '\015'
156 # Put out the final line ending.