From 318ef85a9f5d480fb70b6e9884c7542f99d63d04 Mon Sep 17 00:00:00 2001
From: Peter Stuge <peter@stuge.se>
Date: Fri, 16 Nov 2012 00:13:56 +0100
Subject: [PATCH 1/2] Require pkg-config to find libusb-1.0, and fix libusb.h
 #includes

---
 Makefile.am  |  8 ++++----
 configure.ac | 26 ++++++++++++--------------
 libztex.h    |  2 +-
 miner.h      |  2 +-
 4 files changed, 18 insertions(+), 20 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 85dd1701..83566c6b 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -15,7 +15,7 @@ EXTRA_DIST	= example.conf m4/gnulib-cache.m4 linux-usb-cgminer \
 
 SUBDIRS		= lib compat ccan
 
-INCLUDES	= $(PTHREAD_FLAGS) -fno-strict-aliasing $(JANSSON_INCLUDES) $(USB_FLAGS)
+INCLUDES	= $(PTHREAD_FLAGS) -fno-strict-aliasing $(JANSSON_INCLUDES)
 
 bin_PROGRAMS	= cgminer
 
@@ -24,13 +24,13 @@ bin_SCRIPTS	= *.cl
 cgminer_LDFLAGS	= $(PTHREAD_FLAGS)
 cgminer_LDADD	= $(DLOPEN_FLAGS) @LIBCURL_LIBS@ @JANSSON_LIBS@ @PTHREAD_LIBS@ \
 		  @OPENCL_LIBS@ @NCURSES_LIBS@ @PDCURSES_LIBS@ @WS2_LIBS@ \
-		  @UDEV_LIBS@ @USB_LIBS@ \
+		  @UDEV_LIBS@ @LIBUSB_LIBS@ \
 		  @MATH_LIBS@ lib/libgnu.a ccan/libccan.a
 
 if HAVE_WINDOWS
-cgminer_CPPFLAGS = -I$(top_builddir)/lib -I$(top_srcdir)/lib @OPENCL_FLAGS@
+cgminer_CPPFLAGS = -I$(top_builddir)/lib -I$(top_srcdir)/lib @OPENCL_FLAGS@ @LIBUSB_CFLAGS@
 else
-cgminer_CPPFLAGS = -I$(top_builddir)/lib -I$(top_srcdir)/lib @OPENCL_FLAGS@ @LIBCURL_CFLAGS@
+cgminer_CPPFLAGS = -I$(top_builddir)/lib -I$(top_srcdir)/lib @OPENCL_FLAGS@ @LIBUSB_CFLAGS@ @LIBCURL_CFLAGS@
 endif
 
 # common sources
diff --git a/configure.ac b/configure.ac
index 53b5d9f6..04bd80cd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -62,8 +62,6 @@ AC_FUNC_ALLOCA
 
 have_win32=false
 PTHREAD_FLAGS="-lpthread"
-USB_LIBS=""
-USB_FLAGS=""
 DLOPEN_FLAGS="-ldl"
 OPENCL_LIBS="-lOpenCL"
 WS2_LIBS=""
@@ -343,15 +341,17 @@ if test "x$bitforce$modminer" != xnono; then
 fi
 AM_CONDITIONAL([HAVE_LIBUDEV], [test x$libudev != xno])
 
+PKG_PROG_PKG_CONFIG()
+
 if test "x$ztex" != xno; then
-  AC_CHECK_LIB(usb-1.0, libusb_init, ,
-          AC_MSG_ERROR([Could not find usb library - please install libusb]))
-  AC_DEFINE([HAVE_LIBUSB], [1], [Defined to 1 if libusb is wanted])
-  USB_LIBS="-lusb-1.0"
-  USB_FLAGS=""
+  case $target in
+    *)
+      PKG_CHECK_MODULES(LIBUSB, libusb-1.0, [AC_DEFINE(HAVE_LIBUSB, 1, [Define if you have libusb-1.0])], [AC_MSG_ERROR([Could not find usb library - please install libusb-1.0])])
+      ;;
+  esac
 fi
-
-PKG_PROG_PKG_CONFIG()
+AC_SUBST(LIBUSB_LIBS)
+AC_SUBST(LIBUSB_CFLAGS)
 
 PKG_CHECK_MODULES([LIBCURL], [libcurl >= 7.18.2], ,[AC_MSG_ERROR([Missing required libcurl dev >= 7.18.2])])
 AC_SUBST(LIBCURL_LIBS)
@@ -412,8 +412,6 @@ AC_SUBST(PDCURSES_LIBS)
 AC_SUBST(WS2_LIBS)
 AC_SUBST(MATH_LIBS)
 AC_SUBST(UDEV_LIBS)
-AC_SUBST(USB_LIBS)
-AC_SUBST(USB_FLAGS)
 
 AC_CONFIG_FILES([
 	Makefile
@@ -512,9 +510,9 @@ fi
 echo
 echo "Compilation............: make (or gmake)"
 echo "  CPPFLAGS.............: $CPPFLAGS"
-echo "  CFLAGS...............: $CFLAGS"
-echo "  LDFLAGS..............: $LDFLAGS $PTHREAD_FLAGS $USB_FLAGS"
-echo "  LDADD................: $DLOPEN_FLAGS $LIBCURL_LIBS $JANSSON_LIBS $PTHREAD_LIBS $OPENCL_LIBS $NCURSES_LIBS $PDCURSES_LIBS $WS2_LIBS $MATH_LIBS $UDEV_LIBS $USB_LIBS"
+echo "  CFLAGS...............: $CFLAGS $LIBUSB_CFLAGS"
+echo "  LDFLAGS..............: $LDFLAGS $PTHREAD_FLAGS"
+echo "  LDADD................: $DLOPEN_FLAGS $LIBCURL_LIBS $JANSSON_LIBS $PTHREAD_LIBS $OPENCL_LIBS $NCURSES_LIBS $PDCURSES_LIBS $WS2_LIBS $MATH_LIBS $UDEV_LIBS $LIBUSB_LIBS"
 echo
 echo "Installation...........: make install (as root if needed, with 'su' or 'sudo')"
 echo "  prefix...............: $prefix"
diff --git a/libztex.h b/libztex.h
index d424545c..4b5dab3b 100644
--- a/libztex.h
+++ b/libztex.h
@@ -22,7 +22,7 @@
 #ifndef __LIBZTEX_H__
 #define __LIBZTEX_H__
 
-#include <libusb-1.0/libusb.h>
+#include <libusb.h>
 
 #define LIBZTEX_MAX_DESCRIPTORS 512
 #define LIBZTEX_SNSTRING_LEN 10
diff --git a/miner.h b/miner.h
index e7a0526d..736f605b 100644
--- a/miner.h
+++ b/miner.h
@@ -103,7 +103,7 @@ static inline int fsync (int fd)
 #endif
 
 #ifdef HAVE_LIBUSB
-  #include <libusb-1.0/libusb.h>
+  #include <libusb.h>
 #endif
 
 #ifdef USE_ZTEX

From 30c5a166798a2985a2d04ee2d5deca74dc9dafe4 Mon Sep 17 00:00:00 2001
From: Peter Stuge <peter@stuge.se>
Date: Fri, 16 Nov 2012 00:59:21 +0100
Subject: [PATCH 2/2] configure.ac: Support FreeBSD libusb which doesn't have
 libusb-1.0.pc

---
 configure.ac | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/configure.ac b/configure.ac
index 04bd80cd..73bfc03c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -345,6 +345,11 @@ PKG_PROG_PKG_CONFIG()
 
 if test "x$ztex" != xno; then
   case $target in
+    *-*-freebsd*)
+      LIBUSB_LIBS="-lusb"
+      LIBUSB_CFLAGS=""
+      AC_DEFINE(HAVE_LIBUSB, 1, [Define if you have libusb-1.0])
+      ;;
     *)
       PKG_CHECK_MODULES(LIBUSB, libusb-1.0, [AC_DEFINE(HAVE_LIBUSB, 1, [Define if you have libusb-1.0])], [AC_MSG_ERROR([Could not find usb library - please install libusb-1.0])])
       ;;