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AC_INIT([rtl433],
m4_esyscmd([./git-version-gen .tarball-version]),
[rtl_433@googlegroups.com])
AM_INIT_AUTOMAKE([dist-bzip2 subdir-objects])
dnl kernel style compile messages
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
dnl checks for programs
AC_PROG_MAKE_SET
AC_PROG_CC
AC_PROG_CC_STDC
AC_PROG_INSTALL
LT_INIT
AC_PROG_LIBTOOL
PKG_CHECK_MODULES(LIBRTLSDR, librtlsdr)
LIBS="$LIBS $LIBRTLSDR_LIBS"
CFLAGS="$CFLAGS $LIBRTLSDR_CFLAGS"
AC_PATH_PROG(DOXYGEN,doxygen,false)
AM_CONDITIONAL(HAVE_DOXYGEN, test $DOXYGEN != false)
# cmake compat dummies for Doxyfile.in
AC_SUBST(CMAKE_CURRENT_SOURCE_DIR, "$srcdir")
AC_SUBST(CMAKE_CURRENT_BINARY_DIR, "$builddir")
AC_CONFIG_MACRO_DIR([m4])
dnl checks for header files
AC_HEADER_STDC
AC_CHECK_HEADERS(sys/types.h)
# pc variables
AC_SUBST(RTLSDR_PC_LIBS,["$LIBS"])
AC_SUBST(RTLSDR_PC_CFLAGS,["$CFLAGS"])
dnl checks for required libraries
# The following test is taken from WebKit's webkit.m4
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -fvisibility=hidden "
AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])],
[ AC_MSG_RESULT([yes])
SYMBOL_VISIBILITY="-fvisibility=hidden"],
AC_MSG_RESULT([no]))
CFLAGS="$saved_CFLAGS"
AC_SUBST(SYMBOL_VISIBILITY)
AC_MSG_CHECKING(whether compiler understands -Wall)
old_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall -Wextra -Wno-unused -Wsign-compare"
AC_TRY_COMPILE([],[],
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no)
CFLAGS="$old_CFLAGS")
dnl Generate the output
AM_CONFIG_HEADER(config.h)
AC_OUTPUT(
rtl433.pc
include/Makefile
src/Makefile
Makefile
Doxyfile
)