configure.ac

   1 # SPDX-License-Identifier: GPL-2.0
   2
   3 AC_PREREQ([2.61])
   4
   5 AC_INIT([tfortune], [m4_esyscmd_s(./version-gen.sh)],
   6         [maan@tuebingen.mpg.de], [], [http://people.tuebingen.mpg.de/maan/tfortune/])
   7 AC_CONFIG_HEADERS([config.h])
   8 AC_CONFIG_FILES([config.mak])
   9 AC_USE_SYSTEM_EXTENSIONS
  10 AC_PROG_CC
  11 AC_PROG_CPP
  12
  13 AC_DEFUN([REQUIRE_EXECUTABLE], [
  14         AC_PATH_PROG(m4_toupper([$1]), [$1])
  15         test -z "$m4_toupper([$1])" && AC_MSG_ERROR([$1 is required])
  16 ])
  17 REQUIRE_EXECUTABLE([flex])
  18 REQUIRE_EXECUTABLE([bison])
  19 REQUIRE_EXECUTABLE([lopsubgen])
  20
  21 HAVE_LOPSUB=yes
  22 AC_CHECK_HEADER(lopsub.h, [], [HAVE_LOPSUB=no])
  23 AC_CHECK_LIB([lopsub], [lls_merge], [], [HAVE_LOPSUB=no])
  24 if test $HAVE_LOPSUB = no; then AC_MSG_ERROR([
  25         The lopsub library is required to build this software, but
  26         the above checks indicate it is not installed on your system.
  27         Run the following command to download a copy.
  28                 git clone git://git.tuebingen.mpg.de/lopsub.git
  29         Install the library, then run this configure script again.
  30 ])
  31 fi
  32 AC_OUTPUT