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@xxxxxxxxxx>
---
configure.ac | 17 +++++++++++------
1 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/configure.ac b/configure.ac
index bf6787f..50e8b6f 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)
--
1.5.3.8
--
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