package/pcm-tools: needs NPTL

pcm-tools needs NPTL since its addition in commit
60eb2cec80e5258a0c43090f539749606744e182:

cpucounters.cpp: In constructor 'pcm::TemporalThreadAffinity::TemporalThreadAffinity(pcm::uint32, bool)':
cpucounters.cpp:252:9: error: 'pthread_getaffinity_np' was not declared in this scope; did you mean 'sched_getaffinity'?
  252 |         pthread_getaffinity_np(pthread_self(), set_size, old_affinity);
      |         ^~~~~~~~~~~~~~~~~~~~~~
      |         sched_getaffinity

Fixes:
 - http://autobuild.buildroot.org/results/8bbf9c36af332bbf5e7c1abcbb594a0b231ef97e

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 9d74f85c97d21461a5a23b27eb682c1157875bdb)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/pcm-tools/Config.in

@@ -1,11 +1,13 @@
-comment "pcm-tools needs a toolchain w/ C++"
+comment "pcm-tools needs a toolchain w/ C++, NPTL"
 	depends on BR2_i386 || BR2_x86_64
-	depends on !BR2_INSTALL_LIBSTDCPP
+	depends on !BR2_INSTALL_LIBSTDCPP || \
+		!BR2_TOOLCHAIN_HAS_THREADS_NPTL
 
 config BR2_PACKAGE_PCM_TOOLS
 	bool "pcm-tools"
 	depends on BR2_i386 || BR2_x86_64
 	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL
 	select BR2_PACKAGE_HWDATA
 	select BR2_PACKAGE_HWDATA_PCI_IDS
 	help