libnfc/m4/libnfc_check_libusb.m4
Romuald Conty b55400a0d5 configure.ac rework
- Put libusb and PC/SC check in m4 macros.
- Suppress --disable-pcsclite and --disable-libusb
- Add --with-drivers option: we now could choose which driver to build. without this option a default set is build (ATM all drivers except PN532_UART)
2010-04-15 14:41:13 +00:00

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Text

dnl Check for LIBUSB
dnl On success, HAVE_LIBUSB is set to 1 and PKG_CONFIG_REQUIRES is filled when
dnl libusb is found using pkg-config
AC_DEFUN([LIBNFC_CHECK_LIBUSB],
[
if test x"$libusb_required" = "xyes"; then
HAVE_LIBUSB=0
# Search using pkg-config
if test x"$PKG_CONFIG" != "x"; then
PKG_CHECK_MODULES([libusb], [libusb], [HAVE_LIBUSB=1], [HAVE_LIBUSB=0])
if test x"$HAVE_LIBUSB" = "x1"; then
if test x"$PKG_CONFIG_REQUIRES" != x""; then
PKG_CONFIG_REQUIRES="$PKG_CONFIG_REQUIRES,"
fi
PKG_CONFIG_REQUIRES="$PKG_CONFIG_REQUIRES libusb"
fi
fi
AC_MSG_CHECKING(for libusb)
# Search using libusb-config
if test x"$HAVE_LIBUSB" = "x0"; then
AC_PATH_PROG(libusb_CONFIG,libusb-config)
if test x"$libusb_CONFIG" != "x" ; then
libusb_CFLAGS=`$libusb_CONFIG --cflags`
libusb_LIBS=`$libusb_CONFIG --libs`
HAVE_LIBUSB=1
fi
fi
# Search the library and headers directly (last chance)
if test x"$HAVE_LIBUSB" = "x0"; then
AC_CHECK_HEADER(usb.h, [], [AC_MSG_ERROR([The libusb headers are missing])])
AC_CHECK_LIB(usb, libusb_init, [], [AC_MSG_ERROR([The libusb library is missing])])
libusb_LIBS="-lusb"
HAVE_LIBUSB=1
fi
if test x"$HAVE_LIBUSB" = "x0"; then
AC_MSG_RESULT(no)
AC_MSG_ERROR([libusb is mandatory.])
else
AC_MSG_RESULT(yes)
fi
AC_SUBST(libusb_LIBS)
AC_SUBST(libusb_CFLAGS)
fi
])