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1fa123ed51
Original commit message from CVS: - CHECK_LIBHEADER macro, which is based on GST_CHECK_LIBHEADER the main difference between them is that you can specify cpp flags with CHECK_LIBHEADER
42 lines
1.5 KiB
Text
42 lines
1.5 KiB
Text
dnl
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dnl CHECK-LIBHEADER(FEATURE-NAME, LIB-NAME, LIB-FUNCTION, HEADER-NAME,
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dnl ACTION-IF-FOUND, ACTION-IF-NOT-FOUND,
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dnl EXTRA-LDFLAGS, EXTRA-CPPFLAGS)
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dnl
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dnl FEATURE-NAME - feature name; library and header files are treated
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dnl as feature, which we look for
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dnl LIB-NAME - library name as in AC_CHECK_LIB macro
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dnl LIB-FUNCTION - library symbol as in AC_CHECK_LIB macro
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dnl HEADER-NAME - header file name as in AC_CHECK_HEADER
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dnl ACTION-IF-FOUND - when feature is found then execute given action
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dnl ACTION-IF-NOT-FOUND - when feature is not found then execute given action
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dnl EXTRA-LDFLAGS - extra linker flags (-L or -l)
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dnl EXTRA-CPPFLAGS - extra C preprocessor flags, i.e. -I/usr/X11R6/include
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dnl
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dnl Based on GST_CHECK_LIBHEADER from gstreamer plugins 0.3.1.
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dnl
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AC_DEFUN(CHECK_LIBHEADER,
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[
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AC_CHECK_LIB([$2], [$3], HAVE_[$1]=yes, HAVE_[$1]=no, [$7])
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check_libheader_feature_name=translit([$1], A-Z, a-z)
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if test "x$HAVE_[$1]" = "xyes"; then
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check_libheader_save_CPPFLAGS=$CPPFLAGS
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CPPFLAGS="[$8] $CPPFLAGS"
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AC_CHECK_HEADER([$4], :, HAVE_[$1]=no)
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CPPFLAGS=$check_libheader_save_CPPFLAGS
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if test "x$HAVE_[$1]" = "xyes"; then
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dnl execute what needs to be
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ifelse([$5], , :, [$5])
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AC_MSG_NOTICE(feature $check_libheader_feature_name is found)
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else
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ifelse([$6], , :, [$6])
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fi
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else
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AC_MSG_WARN($check_libheader_feature_name not found)
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fi
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AC_SUBST(HAVE_[$1])
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]
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)
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