mirror of
https://github.com/rtlsdrblog/rtl-sdr-blog.git
synced 2024-11-06 10:47:35 +01:00
81833a1cf6
Although we added a detection mechanism for the presence of the Kernel bug earlier, reading from the incorrectly mapped memory might cause a bus error on some ARM systems. With the overall performance benefit being rather minimal for the data rates of rtl-sdr, disable zero-copy by default.
120 lines
3.2 KiB
Plaintext
120 lines
3.2 KiB
Plaintext
AC_INIT([librtlsdr],
|
|
m4_esyscmd([./git-version-gen .tarball-version]),
|
|
[osmocom-sdr@lists.osmocom.org])
|
|
|
|
AM_INIT_AUTOMAKE([dist-bzip2])
|
|
|
|
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_INSTALL
|
|
AM_PROG_CC_C_O
|
|
LT_INIT
|
|
AC_PROG_LIBTOOL
|
|
|
|
PKG_CHECK_MODULES(LIBUSB, libusb-1.0 >= 1.0)
|
|
LIBS="$LIBS $LIBUSB_LIBS"
|
|
CFLAGS="$CFLAGS $LIBUSB_CFLAGS"
|
|
|
|
AC_PATH_PROG(DOXYGEN,doxygen,false)
|
|
AM_CONDITIONAL(HAVE_DOXYGEN, test $DOXYGEN != false)
|
|
|
|
AC_CONFIG_MACRO_DIR([m4])
|
|
|
|
dnl checks for header files
|
|
AC_HEADER_STDC
|
|
AC_CHECK_HEADERS(sys/types.h)
|
|
AC_CHECK_HEADERS(pthread.h,, [AC_MSG_ERROR([pthread.h required])])
|
|
|
|
# pc variables
|
|
AC_SUBST(RTLSDR_PC_LIBS,["$LIBS"])
|
|
AC_SUBST(RTLSDR_PC_CFLAGS,["$CFLAGS"])
|
|
|
|
dnl checks for required libraries
|
|
dnl pthreads
|
|
AC_CHECK_LIB(pthread, pthread_create, [LIBS="$LIBS -lpthread"])
|
|
|
|
dnl libmath (for rtl_fm)
|
|
AC_CHECK_LIB(m, atan2, [LIBS="$LIBS -lm"])
|
|
|
|
dnl libmath (for rtl_adsb)
|
|
AC_CHECK_LIB(m, sqrt, [LIBS="$LIBS -lm"])
|
|
|
|
dnl libmath (for rtl_power)
|
|
AC_CHECK_LIB(m, atan2, [LIBS="$LIBS -lm"])
|
|
|
|
dnl librealtime (for rtl_test)
|
|
AC_CHECK_LIB(rt, clock_gettime, [LIBS="$LIBS -lrt"])
|
|
|
|
AC_ARG_ENABLE(sanitize,
|
|
[AS_HELP_STRING([--enable-sanitize], [Compile with address sanitizer enabled], )],
|
|
[sanitize=$enableval], [sanitize="no"])
|
|
if test x"$sanitize" = x"yes"
|
|
then
|
|
CFLAGS="$CFLAGS -fsanitize=address -fsanitize=undefined"
|
|
CPPFLAGS="$CPPFLAGS -fsanitize=address -fsanitize=undefined"
|
|
fi
|
|
|
|
AC_ARG_ENABLE(werror,
|
|
[AS_HELP_STRING(
|
|
[--enable-werror],
|
|
[Turn all compiler warnings into errors, with exceptions:
|
|
a) deprecation (allow upstream to mark deprecation without breaking builds);
|
|
b) "#warning" pragmas (allow to remind ourselves of errors without breaking builds)
|
|
]
|
|
)],
|
|
[werror=$enableval], [werror="no"])
|
|
if test x"$werror" = x"yes"
|
|
then
|
|
WERROR_FLAGS="-Werror"
|
|
WERROR_FLAGS+=" -Wno-error=deprecated -Wno-error=deprecated-declarations"
|
|
WERROR_FLAGS+=" -Wno-error=cpp" # "#warning"
|
|
CFLAGS="$CFLAGS $WERROR_FLAGS"
|
|
CPPFLAGS="$CPPFLAGS $WERROR_FLAGS"
|
|
fi
|
|
|
|
# The following test is taken from WebKit's webkit.m4
|
|
saved_CFLAGS="$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-parameter -Wno-unused -Wsign-compare -Wdeclaration-after-statement"
|
|
AC_TRY_COMPILE([],[],
|
|
AC_MSG_RESULT(yes),
|
|
AC_MSG_RESULT(no)
|
|
CFLAGS="$old_CFLAGS")
|
|
|
|
AC_ARG_ENABLE(driver-detach,
|
|
[ --enable-driver-detach Enable detaching of kernel driver (disabled by default)],
|
|
[if test x$enableval = xyes; then
|
|
CFLAGS="$CFLAGS -DDETACH_KERNEL_DRIVER"
|
|
fi])
|
|
|
|
AC_ARG_ENABLE(zerocopy,
|
|
[ --enable-zerocopy Enable usbfs zero-copy support (disabled by default)],
|
|
[if test x$enableval = xyes; then
|
|
CFLAGS="$CFLAGS -DENABLE_ZEROCOPY"
|
|
fi])
|
|
|
|
dnl Generate the output
|
|
AC_CONFIG_HEADER(config.h)
|
|
|
|
AC_OUTPUT(
|
|
librtlsdr.pc
|
|
include/Makefile
|
|
src/Makefile
|
|
Makefile
|
|
Doxyfile
|
|
)
|