mk/autoconf/np_findlib.m4

   1 #  NP_FINDLIB(VARNAME, NAME, STRING, TESTAPP, CFLAGS, LIBS, ACTION_IF_FOUND,
   2 #             ACTION_IF_NOT_FOUND, EXTRACFLAGS, EXTRALIBS)
   3 AC_DEFUN([NP_FINDLIB], [
   4     AC_ARG_WITH([lib$2], [AC_HELP_STRING([--with-lib$2=dir],
   5         [specify location of lib$2 if not detected automatically; uses
   6         dir, dir/include and dir/lib])])
   7
   8     save_CFLAGS="$CFLAGS"
   9     save_CPPFLAGS="$CPPFLAGS"
  10     save_LIBS="$LIBS"
  11
  12     RESCFLAGS="$5"
  13     RESLIBS="$6"
  14     CFLAGS="$CFLAGS $5 $9"
  15     CPPFLAGS="$CPPFLAGS $5 $9"
  16     LIBS="$LIBS $6 $10"
  17
  18     AS_IF([test -n "$with_lib$2"], [
  19         CFLAGS="-I$with_lib$2/include $CFLAGS"
  20         CPPFLAGS="-I$with_lib$2/include $CPPFLAGS"
  21         LIBS="-L$with_lib$2/lib $LIBS"
  22         RESCFLAGS="-I$with_lib$2/include $RESCFLAGS"
  23         RESLIBS="-L$with_lib$2/lib $RESLIBS"
  24     ])
  25
  26     AC_MSG_CHECKING([for $3])
  27
  28     AC_LINK_IFELSE([$4], [buildok=yes], [buildok=no])
  29
  30     LIBS=$save_LIBS
  31     CPPFLAGS=$save_CPPFLAGS
  32     CFLAGS=$save_CFLAGS
  33
  34     AS_IF([test $buildok = yes],
  35         [AC_MSG_RESULT([found])
  36          $1_AVAILABLE=yes
  37          $1_CFLAGS="$RESCFLAGS"
  38          $1_LIBS="$RESLIBS"],
  39         [AC_MSG_RESULT([not found])
  40          $1_AVAILABLE=no
  41          $1_CFLAGS=""
  42          $1_LIBS=""])
  43
  44     AC_SUBST([$1_AVAILABLE])
  45     AC_SUBST([$1_CFLAGS])
  46     AC_SUBST([$1_LIBS])
  47
  48     AS_IF([test $buildok = yes],
  49         [ifelse([$7], , :, [$7])],
  50         [ifelse([$8], , :, [$8])])
  51 ])