File 0001-Use-pkg-config-for-rpc-library-detection.p... of Package libsigrok

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File 0001-Use-pkg-config-for-rpc-library-detection.patch of Package libsigrok

From 0efe71d10402096dc013188fce5fb6bd5dc33d54 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20Br=C3=BCns?= <stefan.bruens@rwth-aachen.de>
Date: Sun, 29 Dec 2019 16:19:41 +0100
Subject: [PATCH] Use pkg-config for rpc library detection

The old SunRPC was removed with glibc 2.26, and libtirpc should be used
instead. As RPC is implemented in a separate library the lib has to be
added to linker flags as well (otherwise the linking during configure
already fails). Instead of rolling our own autoconf macros, use
pkg-config instead.
---
 configure.ac | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/configure.ac b/configure.ac
index 9c42cf3b..6d5a28ac 100644
--- a/configure.ac
+++ b/configure.ac
@@ -186,15 +186,9 @@ AS_CASE([$host_os], [mingw*], [SR_PREPEND([SR_EXTRA_LIBS], [-lws2_32])])
 SR_SEARCH_LIBS([SR_EXTRA_LIBS], [pow], [m])
 
 # RPC is only needed for VXI support.
-AC_CACHE_CHECK([for RPC support], [sr_cv_have_rpc],
-	[AC_LINK_IFELSE([AC_LANG_PROGRAM(
-			[[#include <rpc/rpc.h>]m4_newline[CLIENT *rpc_test(void);]],
-			[[(void) clnt_create("", 0, 0, "");]])],
-		[sr_cv_have_rpc=yes], [sr_cv_have_rpc=no])])
-AS_IF([test "x$sr_cv_have_rpc" = xyes],
-	[AC_DEFINE([HAVE_RPC], [1], [Specifies whether we have RPC support.])])
+SR_ARG_OPT_PKG([rpc], [RPC], , [libtirpc])
 # VXI support is only compiled if RPC support was found.
-AM_CONDITIONAL([NEED_RPC], [test "x$sr_cv_have_rpc" = xyes])
+AM_CONDITIONAL([NEED_RPC], [test "x$sr_have_rpc" = xyes])
 
 # Check for compiler support of 128 bit integers
 AC_CHECK_TYPES([__int128_t, __uint128_t], [], [], [])
@@ -644,7 +638,7 @@ Enabled serial communication transports:
 
 Enabled SCPI backends:
  - TCP............................. yes
- - RPC............................. $sr_cv_have_rpc
+ - RPC/VXI11....................... $sr_have_rpc
  - serial.......................... $sr_have_serial_comm
  - VISA............................ $sr_have_librevisa
  - GPIB............................ $sr_have_libgpib
-- 
2.24.1

--- a/configure	2019-12-29 16:21:35.607251980 +0100
+++ b/configure	2019-12-29 16:35:04.448337838 +0100
@@ -1039,6 +1039,7 @@
 with_libgio
 enable_warnings
 enable_largefile
+with_rpc
 enable_all_drivers
 enable_agilent_dmm
 enable_appa_55ii
@@ -1890,6 +1891,7 @@
   --without-libgpib       disable libgpib support [default=detect]
   --without-libieee1284   disable libieee1284 support [default=detect]
   --without-libgio        disable libgio support [default=detect]
+  --without-rpc           disable rpc support [default=detect]
   --with-jni-include-path=DIR-LIST (space-separated)
                           specify JNI include directories [default=detect]
 
@@ -18851,40 +18853,56 @@
 
 
 # RPC is only needed for VXI support.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for RPC support" >&5
-$as_echo_n "checking for RPC support... " >&6; }
-if ${sr_cv_have_rpc+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <rpc/rpc.h>
-CLIENT *rpc_test(void);
-int
-main ()
-{
-(void) clnt_create("", 0, 0, "");
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  sr_cv_have_rpc=yes
+
+# Check whether --with-rpc was given.
+if test "${with_rpc+set}" = set; then :
+  withval=$with_rpc;
+fi
+
+if test "x$with_rpc" = xno; then :
+  sr_have_rpc=no
+elif test "x$sr_have_rpc" != xyes; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for rpc" >&5
+$as_echo_n "checking for rpc... " >&6; }
+if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libtirpc\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libtirpc") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  	sr_have_rpc=yes
+	SR_PKGLIBS=${SR_PKGLIBS}${SR_PKGLIBS:+' '}"libtirpc"
+	sr_rpc_version=`$PKG_CONFIG --modversion "libtirpc" 2>&5`
+	sr_pkg_check_summary_append "libtirpc" "$sr_rpc_version"
 else
-  sr_cv_have_rpc=no
+  	sr_pkg_check_summary_append "libtirpc" no
+	sr_have_rpc=no sr_rpc_version=
 fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $sr_have_rpc" >&5
+$as_echo "$sr_have_rpc" >&6; }
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $sr_cv_have_rpc" >&5
-$as_echo "$sr_cv_have_rpc" >&6; }
-if test "x$sr_cv_have_rpc" = xyes; then :
+if test "x$with_rpc$sr_have_rpc" = xyesno; then :
+  as_fn_error $? "rpc support requested, but it was not found." "$LINENO" 5
+fi
+if test "x$sr_have_rpc" = xyes; then :
+
+	sr_deps_avail=${sr_deps_avail}${sr_deps_avail:+' '}"rpc"
 
 $as_echo "#define HAVE_RPC 1" >>confdefs.h
 
 fi
+
+if test "x$sr_have_rpc" = xyes; then :
+
+cat >>confdefs.h <<_ACEOF
+#define CONF_RPC_VERSION "$sr_rpc_version"
+_ACEOF
+
+fi
+
 # VXI support is only compiled if RPC support was found.
- if test "x$sr_cv_have_rpc" = xyes; then
+ if test "x$sr_have_rpc" = xyes; then
   NEED_RPC_TRUE=
   NEED_RPC_FALSE='#'
 else
@@ -26512,7 +26530,7 @@
 
 Enabled SCPI backends:
  - TCP............................. yes
- - RPC............................. $sr_cv_have_rpc
+ - RPC/VXI11....................... $sr_have_rpc
  - serial.......................... $sr_have_serial_comm
  - VISA............................ $sr_have_librevisa
  - GPIB............................ $sr_have_libgpib

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File 0001-Use-pkg-config-for-rpc-library-detection.patch of Package libsigrok

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