141 lines
6.2 KiB
Text
141 lines
6.2 KiB
Text
# libunistring-base.m4 serial 5
|
|
dnl Copyright (C) 2010-2013 Free Software Foundation, Inc.
|
|
dnl This file is free software; the Free Software Foundation
|
|
dnl gives unlimited permission to copy and/or distribute it,
|
|
dnl with or without modifications, as long as this notice is preserved.
|
|
|
|
dnl From Paolo Bonzini and Bruno Haible.
|
|
|
|
dnl gl_LIBUNISTRING_MODULE([VERSION], [Module])
|
|
dnl Declares that the source files of Module should be compiled, unless we
|
|
dnl are linking with libunistring and its version is >= the given VERSION.
|
|
dnl Defines an automake conditional LIBUNISTRING_COMPILE_$MODULE that is
|
|
dnl true if the source files of Module should be compiled.
|
|
dnl This macro is to be used for public libunistring API, not for
|
|
dnl undocumented API.
|
|
dnl
|
|
dnl You have to bump the VERSION argument to the next projected version
|
|
dnl number each time you make a change that affects the behaviour of the
|
|
dnl functions defined in Module (even if the sources of Module itself do not
|
|
dnl change).
|
|
|
|
AC_DEFUN([gl_LIBUNISTRING_MODULE],
|
|
[
|
|
AC_REQUIRE([gl_LIBUNISTRING_LIB_PREPARE])
|
|
dnl Use the variables HAVE_LIBUNISTRING, LIBUNISTRING_VERSION from
|
|
dnl gl_LIBUNISTRING_CORE if that macro has been run.
|
|
AM_CONDITIONAL(AS_TR_CPP([LIBUNISTRING_COMPILE_$2]),
|
|
[gl_LIBUNISTRING_VERSION_CMP([$1])])
|
|
])
|
|
|
|
dnl gl_LIBUNISTRING_LIBHEADER([VERSION], [HeaderFile])
|
|
dnl Declares that HeaderFile should be created, unless we are linking
|
|
dnl with libunistring and its version is >= the given VERSION.
|
|
dnl HeaderFile should be relative to the lib directory and end in '.h'.
|
|
dnl Prepares for substituting LIBUNISTRING_HEADERFILE (to HeaderFile or empty).
|
|
dnl
|
|
dnl When we are linking with the already installed libunistring and its version
|
|
dnl is < VERSION, we create HeaderFile here, because we may compile functions
|
|
dnl (via gl_LIBUNISTRING_MODULE above) that are not contained in the installed
|
|
dnl version.
|
|
dnl When we are linking with the already installed libunistring and its version
|
|
dnl is > VERSION, we don't create HeaderFile here: it could cause compilation
|
|
dnl errors in other libunistring header files if some types are missing.
|
|
dnl
|
|
dnl You have to bump the VERSION argument to the next projected version
|
|
dnl number each time you make a non-comment change to the HeaderFile.
|
|
|
|
AC_DEFUN([gl_LIBUNISTRING_LIBHEADER],
|
|
[
|
|
AC_REQUIRE([gl_LIBUNISTRING_LIB_PREPARE])
|
|
dnl Use the variables HAVE_LIBUNISTRING, LIBUNISTRING_VERSION from
|
|
dnl gl_LIBUNISTRING_CORE if that macro has been run.
|
|
if gl_LIBUNISTRING_VERSION_CMP([$1]); then
|
|
LIBUNISTRING_[]AS_TR_CPP([$2])='$2'
|
|
else
|
|
LIBUNISTRING_[]AS_TR_CPP([$2])=
|
|
fi
|
|
AC_SUBST([LIBUNISTRING_]AS_TR_CPP([$2]))
|
|
])
|
|
|
|
dnl Miscellaneous preparations/initializations.
|
|
|
|
AC_DEFUN([gl_LIBUNISTRING_LIB_PREPARE],
|
|
[
|
|
dnl Ensure that HAVE_LIBUNISTRING is fully determined at this point.
|
|
m4_ifdef([gl_LIBUNISTRING], [AC_REQUIRE([gl_LIBUNISTRING])])
|
|
|
|
AC_REQUIRE([AC_PROG_AWK])
|
|
|
|
dnl Sed expressions to extract the parts of a version number.
|
|
changequote(,)
|
|
gl_libunistring_sed_extract_major='/^[0-9]/{s/^\([0-9]*\).*/\1/p;q;}
|
|
i\
|
|
0
|
|
q
|
|
'
|
|
gl_libunistring_sed_extract_minor='/^[0-9][0-9]*[.][0-9]/{s/^[0-9]*[.]\([0-9]*\).*/\1/p;q;}
|
|
i\
|
|
0
|
|
q
|
|
'
|
|
gl_libunistring_sed_extract_subminor='/^[0-9][0-9]*[.][0-9][0-9]*[.][0-9]/{s/^[0-9]*[.][0-9]*[.]\([0-9]*\).*/\1/p;q;}
|
|
i\
|
|
0
|
|
q
|
|
'
|
|
changequote([,])
|
|
|
|
if test "$HAVE_LIBUNISTRING" = yes; then
|
|
LIBUNISTRING_VERSION_MAJOR=`echo "$LIBUNISTRING_VERSION" | sed -n -e "$gl_libunistring_sed_extract_major"`
|
|
LIBUNISTRING_VERSION_MINOR=`echo "$LIBUNISTRING_VERSION" | sed -n -e "$gl_libunistring_sed_extract_minor"`
|
|
LIBUNISTRING_VERSION_SUBMINOR=`echo "$LIBUNISTRING_VERSION" | sed -n -e "$gl_libunistring_sed_extract_subminor"`
|
|
fi
|
|
])
|
|
|
|
dnl gl_LIBUNISTRING_VERSION_CMP([VERSION])
|
|
dnl Expands to a shell statement that evaluates to true if LIBUNISTRING_VERSION
|
|
dnl is less than the VERSION argument.
|
|
AC_DEFUN([gl_LIBUNISTRING_VERSION_CMP],
|
|
[ { test "$HAVE_LIBUNISTRING" != yes \
|
|
|| {
|
|
dnl AS_LITERAL_IF exists and works fine since autoconf-2.59 at least.
|
|
AS_LITERAL_IF([$1],
|
|
[dnl This is the optimized variant, that assumes the argument is a literal:
|
|
m4_pushdef([requested_version_major],
|
|
[gl_LIBUNISTRING_ARG_OR_ZERO(m4_bpatsubst([$1], [^\([0-9]*\).*], [\1]), [])])
|
|
m4_pushdef([requested_version_minor],
|
|
[gl_LIBUNISTRING_ARG_OR_ZERO(m4_bpatsubst([$1], [^[0-9]*[.]\([0-9]*\).*], [\1]), [$1])])
|
|
m4_pushdef([requested_version_subminor],
|
|
[gl_LIBUNISTRING_ARG_OR_ZERO(m4_bpatsubst([$1], [^[0-9]*[.][0-9]*[.]\([0-9]*\).*], [\1]), [$1])])
|
|
test $LIBUNISTRING_VERSION_MAJOR -lt requested_version_major \
|
|
|| { test $LIBUNISTRING_VERSION_MAJOR -eq requested_version_major \
|
|
&& { test $LIBUNISTRING_VERSION_MINOR -lt requested_version_minor \
|
|
|| { test $LIBUNISTRING_VERSION_MINOR -eq requested_version_minor \
|
|
&& test $LIBUNISTRING_VERSION_SUBMINOR -lt requested_version_subminor
|
|
}
|
|
}
|
|
}
|
|
m4_popdef([requested_version_subminor])
|
|
m4_popdef([requested_version_minor])
|
|
m4_popdef([requested_version_major])
|
|
],
|
|
[dnl This is the unoptimized variant:
|
|
requested_version_major=`echo '$1' | sed -n -e "$gl_libunistring_sed_extract_major"`
|
|
requested_version_minor=`echo '$1' | sed -n -e "$gl_libunistring_sed_extract_minor"`
|
|
requested_version_subminor=`echo '$1' | sed -n -e "$gl_libunistring_sed_extract_subminor"`
|
|
test $LIBUNISTRING_VERSION_MAJOR -lt $requested_version_major \
|
|
|| { test $LIBUNISTRING_VERSION_MAJOR -eq $requested_version_major \
|
|
&& { test $LIBUNISTRING_VERSION_MINOR -lt $requested_version_minor \
|
|
|| { test $LIBUNISTRING_VERSION_MINOR -eq $requested_version_minor \
|
|
&& test $LIBUNISTRING_VERSION_SUBMINOR -lt $requested_version_subminor
|
|
}
|
|
}
|
|
}
|
|
])
|
|
}
|
|
}])
|
|
|
|
dnl gl_LIBUNISTRING_ARG_OR_ZERO([ARG], [ORIG]) expands to ARG if it is not the
|
|
dnl same as ORIG, otherwise to 0.
|
|
m4_define([gl_LIBUNISTRING_ARG_OR_ZERO], [m4_if([$1], [$2], [0], [$1])])
|