AC_DEFUN([USRP_LIBUSB], [
- dnl Use PKGCONFIG to check for packages first, then check to
- dnl make sure the USB_* variables work (whether from PKGCONFIG
- dnl or overridden by the user)
-
- dnl do not use LDFLAGS, since PKGCONFIG will provide everything
+ dnl do not use LDFLAGS, except on Windows
saved_LDFLAGS=${LDFLAGS}
- LDFLAGS=
- LIBUSB_PKG_CONFIG_NAME=
+ case "$host_os" in
+ cygwin* | mingw*)
+ ;;
+ *)
+ LDFLAGS=
+ ;;
+ esac
- dnl loop over various possible 'libusb' PKGCONFIG names, and choose
- dnl the first one that meets both the user's selection (via
- dnl configure flags) as well as what is installed
+ dnl this variable is set in usrp/usrp.pc.in as a requirement
+ dnl for libusrp; it is OK to be empty.
+ LIBUSB_PKG_CONFIG_NAME=
- dnl create the list of libusb PKGCONFIG modules to test
+ dnl for Windows (cygin, mingw), do not use PKGCONFIG since LIBUSB
+ dnl does not install a .pc file. For all other OSs, use
+ dnl PKGCONFIG to check for various package names first.
libusb_list=''
- if test x$1 = xyes; then
- dnl libusb-1.0 was requested; just test for it
- libusb_list="libusb-1.0"
- else
- dnl test for legacy libusb only
- libusb_list="libusb libusb-legacy"
- fi
+ case "$host_os" in
+ cygwin* | mingw*)
+ libusb_list='libusb'
+ ;;
+ *)
+ dnl create the list of libusb PKGCONFIG modules to test
+ if test x$1 = xyes; then
+ dnl libusb-1.0 was requested; just test for it
+ libusb_list="libusb-1.0"
+ else
+ dnl test for legacy libusb only
+ libusb_list="libusb libusb-legacy"
+ fi
+ ;;
+ esac
+
+ dnl loop over various possible 'libusb' names, and
+ dnl choose the first one that meets both the user's selection
+ dnl (via configure flags) as well as what is installed
for libusb_name in ${libusb_list}; do
dnl clear internal variables
libusbok=no
usb_lib_func=''
usb_lib_name=''
- dnl start checks
- AC_MSG_NOTICE([Checking for LIBUSB version '${libusb_name}'])
- if test ${libusb_name} = "libusb-1.0"; then
- dnl see if the pkgconfig module is available
- PKG_CHECK_MODULES(USB, ${libusb_name}, [
- libusbok=yes
- have_libusb1=yes
- usb_header='libusb-1.0/libusb.h'
- usb_lib_func='libusb_bulk_transfer'
- ], [libusbok=no])
- else
- dnl see if the pkgconfig module is available
- PKG_CHECK_MODULES(USB, ${libusb_name}, [
- libusbok=yes
+ case "$host_os" in
+ cygwin* | mingw*)
+ USB_INCLUDEDIR=
+ USB_INCLUDES=
+ USB_LIBS=-lusb
usb_header='usb.h'
usb_lib_func='usb_bulk_write'
- ], [libusbok=no])
- fi
+ libusbok=yes
+ ;;
+ *)
+ dnl start checks
+ AC_MSG_NOTICE([Checking for LIBUSB version '${libusb_name}'])
+ if test ${libusb_name} = "libusb-1.0"; then
+ dnl see if the pkgconfig module is available
+ PKG_CHECK_MODULES(USB, ${libusb_name}, [
+ libusbok=yes
+ have_libusb1=yes
+ usb_header='libusb-1.0/libusb.h'
+ usb_lib_func='libusb_bulk_transfer'
+ ], [libusbok=no])
+ else
+ dnl see if the pkgconfig module is available
+ PKG_CHECK_MODULES(USB, ${libusb_name}, [
+ libusbok=yes
+ usb_header='usb.h'
+ usb_lib_func='usb_bulk_write'
+ ], [libusbok=no])
+ fi
+ ;;
+ esac
if test $libusbok = yes; then
- dnl PKGCONFIG found a version of LIBUSB.
+ dnl PKGCONFIG found a version of LIBUSB, or the info was
+ dnl provided by the user, or the OS is Windows.
+
dnl Check it to make sure it meets enough criteria:
dnl Verify that $usb_header is a valid header. If so, then
dnl verify that $usb_lib_func can be found in the library
dnl $usb_lib_name. if so, verify that the symbol 'usb_debug' is
- dnl found in the library.
+ dnl found in the library if not using Windows.
dnl Check for the header. Similar to AC_CHECK_HEADERS,
dnl but doesn't append to known \#defines.
if test $libusbok = yes; then
if test ${libusb_name} != "libusb-1.0"; then
dnl PKGCONFIG found a legacy version of libusb; make sure the
- dnl variable _usb_debug is available in the found library
- AC_LANG_PUSH(C)
- save_CPPFLAGS="$CPPFLAGS"
- CPPFLAGS="$USB_INCLUDES"
- save_LIBS="$LIBS"
- LIBS="$USB_LIBS"
- AC_MSG_CHECKING([$libusb_name for symbol usb_debug in library $usb_lib_name])
- AC_LINK_IFELSE([AC_LANG_PROGRAM([[
- extern int usb_debug;]],
- [[usb_debug = 0;]])],
- [libusbok=yes],[libusbok=no])
- AC_MSG_RESULT([$libusbok])
- LIBS="$save_LIBS"
- CPPFLAGS="$save_CPPFLAGS"
- AC_LANG_POP(C)
+ dnl variable _usb_debug is available in the found library.
+ dnl Do not test on Windows, since that symbol is not defined.
+ case "$host_os" in
+ cygwin* | mingw*)
+ ;;
+ *)
+ AC_LANG_PUSH(C)
+ save_CPPFLAGS="$CPPFLAGS"
+ if test x$USB_INCLUDEDIR != x; then
+ CPPFLAGS="$USB_INCLUDES"
+ fi
+ save_LIBS="$LIBS"
+ LIBS="$USB_LIBS"
+ AC_MSG_CHECKING([$libusb_name for symbol usb_debug in library $usb_lib_name])
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+ extern int usb_debug;]],
+ [[usb_debug = 0;]])],
+ [libusbok=yes],[libusbok=no])
+ AC_MSG_RESULT([$libusbok])
+ LIBS="$save_LIBS"
+ CPPFLAGS="$save_CPPFLAGS"
+ AC_LANG_POP(C)
+ ;;
+ esac
fi
fi
fi
fi
dnl if everything checks out OK, finish up
if test $libusbok = yes; then
- LIBUSB_PKG_CONFIG_NAME="${libusb_name}"
+ case "$host_os" in
+ cygwin* | mingw*)
+ ;;
+ *)
+ LIBUSB_PKG_CONFIG_NAME="${libusb_name}"
+ ;;
+ esac
break
else
dnl something wasn't found in this LIBUSB version.
dnl final error checking, mostly to create #define's
AC_LANG_PUSH(C)
save_CPPFLAGS="$CPPFLAGS"
- CPPFLAGS="$USB_INCLUDES"
+ if test x$USB_INCLUDEDIR != x; then
+ CPPFLAGS="$USB_INCLUDES"
+ fi
dnl Check for the header.
AC_CHECK_HEADERS([$usb_header], [], [libusbok=no])
CPPFLAGS="$save_CPPFLAGS"
dnl check for the library (again)
AC_LANG_PUSH(C)
save_CPPFLAGS="$CPPFLAGS"
- CPPFLAGS="$USB_INCLUDES"
+ if test x$USB_INCLUDEDIR != x; then
+ CPPFLAGS="$USB_INCLUDES"
+ fi
save_LIBS="$LIBS"
LIBS="$USB_LIBS"
AC_CHECK_LIB([$usb_lib_name], [$usb_lib_func], [], [
libusbok=no
AC_MSG_RESULT([USRP requires library '$usb_lib_name' with function '$usb_lib_func', which was either not found or was not usable. See http://www.libusb.org])])
- case "$host_os" in
- cygwin* | mingw*)
- USB_LIBS="$LIBS"
- ;;
- *) ;;
- esac
+# case "$host_os" in
+# cygwin* | mingw*)
+# USB_LIBS="$LIBS"
+# ;;
+# *) ;;
+# esac
LIBS="$save_LIBS"
CPPFLAGS="$save_CPPFLAGS"
AC_LANG_POP(C)
projects / debian / gnuradio / commitdiff