acinclude.m4

   1 #
   2 # INCLUDED_LIB(LIBRARY, FUNCTION, OTHER-LIBRARIES = none)
   3 # ---------------------------------------------
   4 # Contributed by Mat Zimmermann
   5 #
   6 AC_DEFUN(INCLUDED_LIB,
   7 [
   8 use_installed_lib$1=
   9 AC_ARG_WITH([lib$1],
  10             [AC_HELP_STRING([--with-lib$1],
  11                             [Use installed lib$1 (under PREFIX)])],
  12             [if test -n "$withval"; then
  13                if test "$withval" = yes; then
  14                  withval="default path"
  15                else
  16                  CFLAGS="$CFLAGS -I${withval}/include"
  17                  LDFLAGS="$LDFLAGS -L${withval}/lib"
  18                fi
  19              fi
  20              AC_CHECK_LIB([$1],[$2],
  21                           [AC_MSG_NOTICE([using lib$1 in ${withval}])
  22                            use_installed_lib$1=yes],
  23                           [AC_MSG_ERROR([lib$1 not found in ${withval}])],
  24                           [$3])],
  25              [AC_MSG_NOTICE([using included lib$1])])
  26 AM_CONDITIONAL([USE_INSTALLED_lib$1],
  27                [test "$use_installed_lib$1" = yes])
  28 ])