patch boost for ifdef pthread

Author: barrystyle

depends/packages/boost.mk

@@ -4,6 +4,7 @@ $(package)_download_path=https://boostorg.jfrog.io/artifactory/main/release/$(su
 $(package)_file_name=boost_$($(package)_version).tar.bz2
 $(package)_sha256_hash=d73a8da01e8bf8c7eda40b4c84915071a8c8a0df4a6734537ddde4a8580524ee
 $(package)_dependencies=native_b2
+$(package)_patches=commit-74fb0a2.patch
 
 define $(package)_set_vars
 $(package)_config_opts_release=variant=release
@@ -29,6 +30,7 @@ $(package)_cxxflags_android=-fPIC
 endef
 
 define $(package)_preprocess_cmds
+  patch -p2 -i $($(package)_patch_dir)/commit-74fb0a2.patch && \
   echo "using $($(package)_toolset_$(host_os)) : : $($(package)_cxx) : <cflags>\"$($(package)_cflags)\" <cxxflags>\"$($(package)_cxxflags)\" <compileflags>\"$($(package)_cppflags)\" <linkflags>\"$($(package)_ldflags)\" <archiver>\"$($(package)_ar)\" <striper>\"$(host_STRIP)\"  <ranlib>\"$(host_RANLIB)\" <rc>\"$(host_WINDRES)\" : ;" > user-config.jam
 endef
 

depends/patches/boost/commit-74fb0a2.patch

@@ -0,0 +1,19 @@
+From 74fb0a26099bc51d717f5f154b37231ce7df3e98 Mon Sep 17 00:00:00 2001
+From: Rob Boehne <robb@datalogics.com>
+Date: Wed, 20 Nov 2019 11:25:20 -0600
+Subject: Revert change to elide a warning that caused Solaris builds to fail.
+
+
+diff --git a/include/boost/thread/pthread/thread_data.hpp b/include/boost/thread/pthread/thread_data.hpp
+index aefbeb43..bc9b1367 100644
+--- a/include/boost/thread/pthread/thread_data.hpp
++++ b/include/boost/thread/pthread/thread_data.hpp
+@@ -57,7 +57,7 @@ namespace boost
+ #else
+           std::size_t page_size = ::sysconf( _SC_PAGESIZE);
+ #endif
+-#if PTHREAD_STACK_MIN > 0
++#ifdef PTHREAD_STACK_MIN
+           if (size<PTHREAD_STACK_MIN) size=PTHREAD_STACK_MIN;
+ #endif
+           size = ((size+page_size-1)/page_size)*page_size;