1dnl
2dnl CHECK-LIBHEADER(FEATURE-NAME, LIB-NAME, LIB-FUNCTION, HEADER-NAME,
3dnl                 ACTION-IF-FOUND, ACTION-IF-NOT-FOUND,
4dnl                 EXTRA-LDFLAGS, EXTRA-CPPFLAGS)
5dnl
6dnl FEATURE-NAME        - feature name; library and header files are treated
7dnl                       as feature, which we look for
8dnl LIB-NAME            - library name as in AC_CHECK_LIB macro
9dnl LIB-FUNCTION        - library symbol as in AC_CHECK_LIB macro
10dnl HEADER-NAME         - header file name as in AC_CHECK_HEADER
11dnl ACTION-IF-FOUND     - when feature is found then execute given action
12dnl ACTION-IF-NOT-FOUND - when feature is not found then execute given action
13dnl EXTRA-LDFLAGS       - extra linker flags (-L or -l)
14dnl EXTRA-CPPFLAGS      - extra C preprocessor flags, i.e. -I/usr/X11R6/include
15dnl
16dnl Based on GST_CHECK_LIBHEADER from gstreamer plugins 0.3.1.
17dnl
18AC_DEFUN([CHECK_LIBHEADER],
19[
20  AC_CHECK_LIB([$2], [$3], HAVE_[$1]=yes, HAVE_[$1]=no, [$7])
21  check_libheader_feature_name=translit([$1], A-Z, a-z)
22
23  if test "x$HAVE_[$1]" = "xyes"; then
24    check_libheader_save_CPPFLAGS=$CPPFLAGS
25    CPPFLAGS="[$8] $CPPFLAGS"
26    AC_CHECK_HEADER([$4], :, HAVE_[$1]=no)
27    CPPFLAGS=$check_libheader_save_CPPFLAGS
28  fi
29
30  if test "x$HAVE_[$1]" = "xyes"; then
31    ifelse([$5], , :, [$5])
32    AC_MSG_NOTICE($check_libheader_feature_name was found)
33  else
34    ifelse([$6], , :, [$6])
35    AC_MSG_WARN($check_libheader_feature_name not found)
36  fi
37  AC_SUBST(HAVE_[$1])
38]
39)
40