mirror of
https://github.com/rtlsdrblog/rtl-sdr-blog.git
synced 2024-09-20 05:42:36 +02:00
3e17ef2b55
Since this feature also disconnects running instances of librtlsdr that claimed the device, it is now disabled by default and can only be enabled at compile time. To enable it when building with cmake: cmake . -DDETACH_KERNEL_DRIVER=ON To enable it when building with automake: ./configure --enable-driver-detach Signed-off-by: Steve Markgraf <steve@steve-m.de>
83 lines
2.0 KiB
Plaintext
83 lines
2.0 KiB
Plaintext
AC_INIT([librtlsdr],
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m4_esyscmd([./git-version-gen .tarball-version]),
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[osmocom-sdr@lists.osmocom.org])
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AM_INIT_AUTOMAKE([dist-bzip2])
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dnl kernel style compile messages
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m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
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dnl checks for programs
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AC_PROG_MAKE_SET
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AC_PROG_CC
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AC_PROG_INSTALL
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LT_INIT
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AC_PROG_LIBTOOL
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PKG_CHECK_MODULES(LIBUSB, libusb-1.0 >= 1.0)
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LIBS="$LIBS $LIBUSB_LIBS"
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CFLAGS="$CFLAGS $LIBUSB_CFLAGS"
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AC_PATH_PROG(DOXYGEN,doxygen,false)
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AM_CONDITIONAL(HAVE_DOXYGEN, test $DOXYGEN != false)
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AC_CONFIG_MACRO_DIR([m4])
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dnl checks for header files
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AC_HEADER_STDC
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AC_CHECK_HEADERS(sys/types.h)
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AC_CHECK_HEADERS(pthread.h,, [AC_MSG_ERROR([pthread.h required])])
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# pc variables
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AC_SUBST(RTLSDR_PC_LIBS,["$LIBS"])
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AC_SUBST(RTLSDR_PC_CFLAGS,["$CFLAGS"])
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dnl checks for required libraries
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dnl pthreads
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AC_CHECK_LIB(pthread, pthread_create, [LIBS="$LIBS -lpthread"])
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dnl libmath (for rtl_fm)
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AC_CHECK_LIB(m, atan2, [LIBS="$LIBS -lm"])
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dnl libmath (for rtl_adsb)
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AC_CHECK_LIB(m, sqrt, [LIBS="$LIBS -lm"])
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dnl librealtime (for rtl_test)
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AC_CHECK_LIB(rt, clock_gettime, [LIBS="$LIBS -lrt"])
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# The following test is taken from WebKit's webkit.m4
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saved_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -fvisibility=hidden "
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AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden])
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])],
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[ AC_MSG_RESULT([yes])
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SYMBOL_VISIBILITY="-fvisibility=hidden"],
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AC_MSG_RESULT([no]))
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CFLAGS="$saved_CFLAGS"
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AC_SUBST(SYMBOL_VISIBILITY)
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AC_MSG_CHECKING(whether compiler understands -Wall)
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old_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -Wall -Wextra -Wno-unused -Wsign-compare"
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AC_TRY_COMPILE([],[],
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AC_MSG_RESULT(yes),
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AC_MSG_RESULT(no)
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CFLAGS="$old_CFLAGS")
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AC_ARG_ENABLE(driver-detach,
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[ --enable-driver-detach Enable detaching of kernel driver (disabled by default)],
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[if test x$enableval = xyes; then
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CFLAGS="$CFLAGS -DDETACH_KERNEL_DRIVER"
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fi])
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dnl Generate the output
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AC_CONFIG_HEADER(config.h)
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AC_OUTPUT(
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librtlsdr.pc
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include/Makefile
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src/Makefile
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Makefile
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Doxyfile
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)
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