package/unixodbc: fix build without threads

Fix the following build failure without threads raised since bump to
version 2.3.11 in commit 9b4914cc4ccdc30e239cd3e2e0e61b8ca5d24bab and
https://github.com/lurcher/unixODBC/commit/6df155fb213896b9507b421c58856e4376647ae1:

/home/buildroot/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/9.3.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: ../DriverManager/.libs/libodbc.so: undefined reference to `pool_timedwait'
/home/buildroot/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/9.3.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: ../DriverManager/.libs/libodbc.so: undefined reference to `pool_signal'

Fixes:
 - http://autobuild.buildroot.org/results/131eafaddfc956c7d54c81ed72a31baf28ab1ab6

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/unixodbc/0001-DriverManager-drivermanager.h-fix-build-without-thre.patch

@@ -0,0 +1,34 @@
+From 119cab666646cd9210439d4696a4bfa18343a2c6 Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Tue, 12 Jul 2022 00:29:28 +0200
+Subject: [PATCH] DriverManager/drivermanager.h: fix build without threads
+
+Fix the following build failure without threads raised since version
+2.3.10 and commit 6df155fb213896b9507b421c58856e4376647ae1:
+
+/home/buildroot/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/9.3.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: ../DriverManager/.libs/libodbc.so: undefined reference to `pool_timedwait'
+/home/buildroot/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/9.3.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: ../DriverManager/.libs/libodbc.so: undefined reference to `pool_signal'
+
+Fixes:
+ - http://autobuild.buildroot.org/results/131eafaddfc956c7d54c81ed72a31baf28ab1ab6
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+[Retrieved from:
+https://github.com/lurcher/unixODBC/commit/119cab666646cd9210439d4696a4bfa18343a2c6]
+---
+ DriverManager/drivermanager.h | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/DriverManager/drivermanager.h b/DriverManager/drivermanager.h
+index 9528fae..abd324b 100644
+--- a/DriverManager/drivermanager.h
++++ b/DriverManager/drivermanager.h
+@@ -808,6 +808,8 @@ void pool_signal();
+ 
+ #define thread_protect(a,b)
+ #define thread_release(a,b)
++#define pool_timedwait(a)
++#define pool_signal()
+ 
+ #endif
+