acinclude.m4

   1 # INCLUDED_LIB(LIBRARY, FUNCTION, OTHER-LIBRARIES = none)
   2 # ---------------------------------------------
   3 AC_DEFUN(INCLUDED_LIB,
   4 [
   5 use_installed_lib$1=
   6 AC_ARG_WITH([lib$1],
   7             [AC_HELP_STRING([--with-lib$1],
   8                             [Use installed lib$1 (under PREFIX)])],
   9             [if test -n "$withval"; then
  10                if test "$withval" = yes; then
  11                  withval="default path"
  12                else
  13                  CFLAGS="$CFLAGS -I${withval}/include"
  14                  LDFLAGS="$LDFLAGS -L${withval}/lib"
  15                fi
  16              fi
  17              AC_CHECK_LIB([$1],[$2],
  18                           [AC_MSG_NOTICE([using lib$1 in ${withval}])
  19                            use_installed_lib$1=yes],
  20                           [AC_MSG_ERROR([lib$1 not found in ${withval}])],
  21                           [$3])],
  22              [AC_MSG_NOTICE([using included lib$1])])
  23 AM_CONDITIONAL([USE_INSTALLED_lib$1],
  24                [test "$use_installed_lib$1" = yes])
  25 ])