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_INSTALL
  14 LT_INIT
  15 AC_PROG_LIBTOOL
  16
  17 PKG_CHECK_MODULES(LIBRTLSDR, librtlsdr)
  18 LIBS="$LIBS $LIBRTLSDR_LIBS"
  19 CFLAGS="$CFLAGS $LIBRTLSDR_CFLAGS"
  20
  21 AC_PATH_PROG(DOXYGEN,doxygen,false)
  22 AM_CONDITIONAL(HAVE_DOXYGEN, test $DOXYGEN != false)
  23
  24 AC_CONFIG_MACRO_DIR([m4])
  25
  26 dnl checks for header files
  27 AC_HEADER_STDC
  28 AC_CHECK_HEADERS(sys/types.h)
  29
  30 # pc variables
  31 AC_SUBST(RTLSDR_PC_LIBS,["$LIBS"])
  32 AC_SUBST(RTLSDR_PC_CFLAGS,["$CFLAGS"])
  33
  34 dnl checks for required libraries
  35
  36 # The following test is taken from WebKit's webkit.m4
  37 saved_CFLAGS="$CFLAGS"
  38 CFLAGS="$CFLAGS -fvisibility=hidden "
  39 AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden])
  40 AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])],
  41     [ AC_MSG_RESULT([yes])
  42       SYMBOL_VISIBILITY="-fvisibility=hidden"],
  43       AC_MSG_RESULT([no]))
  44 CFLAGS="$saved_CFLAGS"
  45 AC_SUBST(SYMBOL_VISIBILITY)
  46
  47 AC_MSG_CHECKING(whether compiler understands -Wall)
  48 old_CFLAGS="$CFLAGS"
  49 CFLAGS="$CFLAGS -Wall -Wextra -Wno-unused -Wsign-compare"
  50 AC_TRY_COMPILE([],[],
  51   AC_MSG_RESULT(yes),
  52   AC_MSG_RESULT(no)
  53   CFLAGS="$old_CFLAGS")
  54
  55 dnl Generate the output
  56 AM_CONFIG_HEADER(config.h)
  57
  58 AC_OUTPUT(
  59         rtl433.pc
  60         include/Makefile
  61         src/Makefile
  62         Makefile
  63         Doxyfile
  64 )