forked from osmocom/wireshark
160 lines
5.1 KiB
Bash
Executable File
160 lines
5.1 KiB
Bash
Executable File
#!/bin/sh
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#
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# This script returns the flags to be fed to "aclocal" to ensure that
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# it finds GLib's aclocal macros (we assume GTK+ is installed in the
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# same place as GLib) and pkg-config's aclocal macros.
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#
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# aclocal will search, by default, only in a directory in the same
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# tree where it was installed - e.g., if installed in "/usr/bin", it'll
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# search only in "/usr/share/aclocal", and if installed in "/usr/local/bin",
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# it'll search only in "/usr/local/share/aclocal".
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#
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# However, there is no guarantee that GLib, or pkg-config has been installed
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# there; if either of them hasn't been installed there, aclocal won't find
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# the autoconf macros for whichever of them wan't, and will complain
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# bitterly.
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#
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# So:
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#
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# if pkg-config is found with a path that ends with "bin/pkg-config",
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# and the "share/local" directory under the directory at the path
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# that's the part of the pkg-config path preceding "bin/pkg-config"
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# isn't the same directory as the directory reported by "aclocal
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# --print-ac-dir", we include in our output a "-I" flag with that
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# directory as its argument;
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#
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# if the "share/local" directory under the directory reported by
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# "pkg-config --variable=prefix glib-2.0" isn't the same directory
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# as the directory reported by "aclocal --print-ac-dir", we include
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# in our output a "-I" flag with the first of those directories as
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# the argument.
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#
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# If either of them *is* the same directory as the directory reported by
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# "aclocal --print-ac-dir", and we supply that "-I" flag, "aclocal" will
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# look in that directory twice, and get well and truly confused, reporting
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# a ton of duplicate macro definitions. This also means that if pkg-config
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# and Glib are installed with the same prefix, we should only supply one
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# "-I" flag for both of them.
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#
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#
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# OK, where will aclocal look by default?
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#
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aclocal_dir=`aclocal --print-ac-dir`
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#
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# And where do we want to make sure it looks?
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# Look for pkg-config first.
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#
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pkg_config_path=`command -v pkg-config 2>/dev/null`
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if [ -z "$pkg_config_path" ]
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then
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#
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# Either we don't have "command" (which is required by recent
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# POSIX) or it didn't find pkg-config.
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#
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pkg_config_aclocal_dir=""
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else
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#
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# OK, we found pkg-config; attempt to find the prefix for it, by
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# stripping off "bin/pkg-config".
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#
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pkg_config_prefix=`expr "$pkg_config_path" : '\(.*\)/bin/pkg-config'`
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if [ -z "$pkg_config_prefix" ]
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then
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#
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# Well, we couldn't strip it off, for whatever reason.
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#
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pkg_config_aclocal_dir=""
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else
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#
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# Solaris 11's default pkg-config installation puts
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# it in /usr/ccs/bin, but there's no /usr/ccs/share.
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# Map /usr/ccs to /usr.
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#
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# Ubuntu 7.10 has /usr/X11R6/bin as a symbolic link
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# to /usr/bin, but there's no /usr/X11R6/share. If
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# /usr/X11R6/bin is a symlink to /usr/bin, map
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# /usr/X11R6 to /usr.
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#
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if [ "$pkg_config_prefix" = /usr/ccs ]
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then
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pkg_config_prefix=/usr
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elif [ "$pkg_config_prefix" = /usr/X11R6 ]
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then
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if expr "`ls -ld /usr/X11R6/bin`" : '.*/usr/X11R6/bin -> .*/bin$' >/dev/null
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then
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pkg_config_prefix=/usr
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fi
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fi
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#
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# Now get the path of its aclocal directory.
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#
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pkg_config_aclocal_dir=$pkg_config_prefix/share/aclocal
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fi
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fi
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#
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# Now see where glib is installed.
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#
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glib_prefix=`pkg-config --variable=prefix glib-2.0 2>/dev/null`
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#
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# Now get the path of its aclocal directory.
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#
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if [ -z "$glib_prefix" ]
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then
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glib_aclocal_dir=""
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else
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glib_aclocal_dir=$glib_prefix/share/aclocal
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fi
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#
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# Add our aclocal-fallback to the path.
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# We write out the -I flag for it, and strip off CR and LF, as we may
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# be writing more -I options, and we want all the options to be on
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# one line.
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#
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ac_missing_dir=`dirname $0`
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echo "-I $ac_missing_dir/aclocal-fallback" | tr -d '\012' | tr -d '\015'
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#
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# If there's no aclocal, aclocal_dir, which is the path where aclocal
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# searches, will be empty; if we didn't find pkg-config,
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# pkg_config_aclocal_dir, which is the path where it should search
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# for pkg-config's macros, will be empty. Add pkg_config_aclocal_dir only
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# if both it and aclocal_dir are non-empty and different from each other.
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#
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if [ ! -z "$aclocal_dir" -a ! -z "$pkg_config_aclocal_dir" \
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-a "$aclocal_dir" != "$pkg_config_aclocal_dir" ]
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then
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echo " -I $pkg_config_aclocal_dir" | tr -d '\012' | tr -d '\015'
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fi
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#
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# If pkg-config doesn't know about glib-2.0, glib_aclocal_dir will be
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# empty. (Should we just fail in that case? Does that mean we don't
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# have GLib installed?)
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#
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# Add glib_aclocal_dir only if both it and aclocal_dir are non-empty and
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# different from each other *and* pkg_config_aclocal_dir is different from
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# glib_aclocal_dir. (We don't need to check whether pkg_config_aclocal_dir
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# is empty; if it is, then either glib_aclocal_dir is also empty, in which
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# case we'll bail out before even looking at pkg_config_aclocal_dir, or
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# it's non-empty, in which case it obviously won't be equal to
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# pkg_config_aclocal_dir.)
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#
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if [ ! -z "$aclocal_dir" -a ! -z "$glib_aclocal_dir" \
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-a "$aclocal_dir" != "$glib_aclocal_dir" \
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-a "$pkg_config_aclocal_dir" != "$glib_aclocal_dir" ]
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then
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echo " -I $glib_aclocal_dir" | tr -d '\012' | tr -d '\015'
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fi
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#
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# Put out the final line ending.
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#
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echo
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exit 0
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