X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=configure.ac;h=aa5cdad554acff0437e98997b2741208bf5a5375;hb=b05409d7923df5205c07e5cce2d2791eb74cf268;hp=47a68349beb75a0be1340970e1e9786672ddd9b2;hpb=607dcdeae13d04fd5c6d41da46d9c29a04206a86;p=libsigrok.git

diff --git a/configure.ac b/configure.ac
index 47a68349..aa5cdad5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -30,7 +30,7 @@ AC_CONFIG_HEADERS([config.h include/libsigrok/version.h])
 
 # We require at least automake 1.11 (needed for 'silent rules').
 AM_INIT_AUTOMAKE([1.11 -Wall -Werror no-define nostdinc subdir-objects check-news color-tests])
-m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+AM_SILENT_RULES([yes])
 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
 
 AH_TOP([#ifndef SR_CONFIG_H
@@ -115,6 +115,7 @@ SR_CHECK_COMPILE_FLAGS([SR_EXTRA_CFLAGS], [visibility], [-fvisibility=hidden])
 SR_ARG_ENABLE_WARNINGS([SR_WFLAGS], [-Wall], [-Wall -Wextra -Wmissing-prototypes])
 
 # Check host characteristics.
+AC_SYS_LARGEFILE
 AC_C_BIGENDIAN
 
 AC_CHECK_HEADERS([sys/mman.h], [SR_APPEND([sr_deps_avail], [sys_mman_h])])
@@ -127,6 +128,25 @@ AS_CASE([$host], [*-mingw*], [SR_EXTRA_LIBS='-lws2_32'], [SR_EXTRA_LIBS=])
 # libm (the standard math library) is always needed.
 SR_SEARCH_LIBS([SR_EXTRA_LIBS], [pow], [m])
 
+AC_ARG_WITH([libieee1284], [AS_HELP_STRING([--without-libieee1284],
+				[disable libieee1284 support [default=detect]])])
+sr_have_libieee1284=no
+AS_IF([test "x$with_libieee1284" != xno], [
+	AC_CHECK_HEADER([ieee1284.h], [
+		SR_SEARCH_LIBS([SR_EXTRA_LIBS], [ieee1284_open], [ieee1284], [
+			sr_have_libieee1284=yes
+			SR_APPEND([sr_deps_avail], [libieee1284])
+			sr_pkg_check_summary_append "libieee1284" yes
+		])
+	])
+	AS_IF([test "$sr_have_libieee1284" = no], [
+		AS_IF([test "x$with_libieee1284" = xyes], [
+			AC_MSG_ERROR([libieee1284 support requested, but it was not found.])
+		])
+		sr_pkg_check_summary_append "libieee1284" no
+	])
+])
+
 # RPC is only needed for VXI support.
 AC_CACHE_CHECK([for RPC support], [sr_cv_have_rpc],
 	[AC_LINK_IFELSE([AC_LANG_PROGRAM(
@@ -205,7 +225,7 @@ SR_DRIVER([Hantek DSO], [hantek-dso], [libusb])
 SR_DRIVER([Ikalogic Scanalogic-2], [ikalogic-scanalogic2], [libusb])
 SR_DRIVER([Ikalogic Scanaplus], [ikalogic-scanaplus], [libftdi])
 SR_DRIVER([Kecheng KC-330B], [kecheng-kc-330b], [libusb])
-SR_DRIVER([KERN scale], [kern-scale])
+SR_DRIVER([KERN scale], [kern-scale], [libserialport])
 SR_DRIVER([Lascar EL-USB], [lascar-el-usb], [libusb])
 SR_DRIVER([Manson HCS-3xxx], [manson-hcs-3xxx], [libserialport])
 SR_DRIVER([maynuo-m97], [maynuo-m97])