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| author | Karel Zak | 2008-03-05 00:34:49 +0100 |
|---|---|---|
| committer | Karel Zak | 2008-03-20 12:25:01 +0100 |
| commit | 40cc242e0204e274b012895f17dca8750001acd8 (patch) | |
| tree | c37511cf3ed0aabd37382f766ba712e15747e39a /configure.ac | |
| parent | docs: refresh TODO list (diff) | |
| download | kernel-qcow2-util-linux-40cc242e0204e274b012895f17dca8750001acd8.tar.gz kernel-qcow2-util-linux-40cc242e0204e274b012895f17dca8750001acd8.tar.xz kernel-qcow2-util-linux-40cc242e0204e274b012895f17dca8750001acd8.zip | |
build-sys: add VARSUFFIX to UTIL_CHECK_LIB
The UTIL_CHECK_LIB macro follows the default autoconf behaviour and
generates have_<libname> and HAVE_LIB<LIBNAME> variables.
Some libraries are substitutional (e.g. ncurses and ncursesw). It would be
nice to generate for that libraries the same HAVE_ variables independently
on a library name.
This patch adds optional VARSUFFIX option to UTIL_CHECK_LIB, so the final
variables are have_<varsuffix> and HAVE_LIB<VARSUFFIX>.
For example:
UTIL_CHECK_LIB(yyy, func) generates have_yyy and HAVE_LIBYYY
UTIL_CHECK_LIB(yyy, func, xxx) generates have_xxx and HAVE_LIBXXX
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/configure.ac b/configure.ac index bf6787fb4..50e8b6ffe 100644 --- a/configure.ac +++ b/configure.ac @@ -116,14 +116,19 @@ m4_foreach([UTIL_PRG], m4_defn([UTIL_STATIC_PROGRAMS]), [ ]) -dnl UTIL_CHECK_LIB(LIBRARY, FUNCTION) + +dnl UTIL_CHECK_LIB(LIBRARY, FUNCTION, [VARSUFFIX = $1])) +dnl The VARSUFFIX is optional and overrides the default behaviour. For example: +dnl UTIL_CHECK_LIB(yyy, func, xxx) generates have_xxx and HAVE_LIBXXX +dnl UTIL_CHECK_LIB(yyy, func) generates have_yyy and HAVE_LIBYYY dnl --------------------------------- AC_DEFUN([UTIL_CHECK_LIB], [ - dnl The trick is to keep the third argument to AC_CHECK_LIB empty, - dnl and thus keep the default action. - have_$1=yes - AC_CHECK_LIB([$1], [$2], [], [have_$1=no]) - AM_CONDITIONAL(AS_TR_CPP(HAVE_$1), [test $have_$1 = yes]) + m4_define([suffix], m4_default([$3],$1)) + [have_]suffix=yes + m4_ifdef([$3], + [AC_CHECK_LIB([$1], [$2], [AC_DEFINE(AS_TR_CPP([HAVE_LIB]suffix), 1)], [[have_]suffix=no])], + [AC_CHECK_LIB([$1], [$2], [], [[have_]suffix=no])]) + AM_CONDITIONAL(AS_TR_CPP([HAVE_]suffix), [test [$have_]suffix = yes]) ]) UTIL_CHECK_LIB(uuid, uuid_is_null) |