diff options
| -rw-r--r-- | config/usrp_libusb.m4 | 168 |
1 files changed, 108 insertions, 60 deletions
diff --git a/config/usrp_libusb.m4 b/config/usrp_libusb.m4 index a434d379d..cc3410f41 100644 --- a/config/usrp_libusb.m4 +++ b/config/usrp_libusb.m4 @@ -24,28 +24,43 @@ dnl Boston, MA 02110-1301, USA. 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 ${libusb_list}; do dnl clear internal variables libusbok=no @@ -54,31 +69,45 @@ AC_DEFUN([USRP_LIBUSB], [ usb_lib_func='' usb_lib_name='' - dnl start checks - AC_MSG_NOTICE([Checking for LIBUSB version '${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. @@ -135,28 +164,43 @@ AC_DEFUN([USRP_LIBUSB], [ 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. @@ -173,7 +217,9 @@ AC_DEFUN([USRP_LIBUSB], [ 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" @@ -185,18 +231,20 @@ AC_DEFUN([USRP_LIBUSB], [ 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) |