configure.ac

   1 AC_INIT([rtl433],
   2         m4_esyscmd([./git-version-gen .tarball-version]),
   3         [rtl_433@googlegroups.com])
   4
   5 AM_INIT_AUTOMAKE([dist-bzip2 subdir-objects])
   6
   7 dnl kernel style compile messages
   8 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
   9
  10 dnl checks for programs
  11 AC_PROG_MAKE_SET
  12 AC_PROG_CC
  13 AC_PROG_CC_STDC
  14 AC_PROG_INSTALL
  15 LT_INIT
  16 AC_PROG_LIBTOOL
  17
  18 PKG_CHECK_MODULES(LIBRTLSDR, librtlsdr)
  19 LIBS="$LIBS $LIBRTLSDR_LIBS"
  20 CFLAGS="$CFLAGS $LIBRTLSDR_CFLAGS"
  21
  22 AC_PATH_PROG(DOXYGEN,doxygen,false)
  23 AM_CONDITIONAL(HAVE_DOXYGEN, test $DOXYGEN != false)
  24
  25 AC_CONFIG_MACRO_DIR([m4])
  26
  27 dnl checks for header files
  28 AC_HEADER_STDC
  29 AC_CHECK_HEADERS(sys/types.h)
  30
  31 # pc variables
  32 AC_SUBST(RTLSDR_PC_LIBS,["$LIBS"])
  33 AC_SUBST(RTLSDR_PC_CFLAGS,["$CFLAGS"])
  34
  35 dnl checks for required libraries
  36
  37 # The following test is taken from WebKit's webkit.m4
  38 saved_CFLAGS="$CFLAGS"
  39 CFLAGS="$CFLAGS -fvisibility=hidden "
  40 AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden])
  41 AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])],
  42     [ AC_MSG_RESULT([yes])
  43       SYMBOL_VISIBILITY="-fvisibility=hidden"],
  44       AC_MSG_RESULT([no]))
  45 CFLAGS="$saved_CFLAGS"
  46 AC_SUBST(SYMBOL_VISIBILITY)
  47
  48 AC_MSG_CHECKING(whether compiler understands -Wall)
  49 old_CFLAGS="$CFLAGS"
  50 CFLAGS="$CFLAGS -Wall -Wextra -Wno-unused -Wsign-compare"
  51 AC_TRY_COMPILE([],[],
  52   AC_MSG_RESULT(yes),
  53   AC_MSG_RESULT(no)
  54   CFLAGS="$old_CFLAGS")
  55
  56 dnl Generate the output
  57 AM_CONFIG_HEADER(config.h)
  58
  59 AC_OUTPUT(
  60         rtl433.pc
  61         include/Makefile
  62         src/Makefile
  63         Makefile
  64         Doxyfile
  65 )