From b3dd7477bb7bf2f6506aaaec666de2280124219a Mon Sep 17 00:00:00 2001
From: Rodolfo Ribeiro Gomes <rodolforg@gmail.com>
Date: Dec 04 2019 10:06:15 +0000
Subject: remove autotools references to threads in ETL


---

diff --git a/ETL/m4/ETL.m4 b/ETL/m4/ETL.m4
index 66b22a6..f7f61b7 100644
--- a/ETL/m4/ETL.m4
+++ b/ETL/m4/ETL.m4
@@ -8,21 +8,10 @@
 AC_DEFUN([ETL_DEPS],
 [
 	AC_CHECK_LIB(user32, main)
-	AC_CHECK_LIB([kernel32], [CreateMutex])
-	AC_CHECK_LIB([pthread], [pthread_mutex_init])
 	
-	# This macro is obsolescent, as current systems have conforming header files. New programs need not use this macro. 
-	#AC_HEADER_STDC
-	
-	AC_CHECK_HEADERS(pthread.h)
-	AC_CHECK_HEADERS(sched.h)
 	AC_CHECK_HEADERS(sys/time.h)
 	AC_CHECK_HEADERS(unistd.h)
 	AC_CHECK_HEADERS(windows.h)
-	AC_CHECK_FUNCS([pthread_create])
-	AC_CHECK_FUNCS([pthread_rwlock_init])
-	AC_CHECK_FUNCS([sched_yield])
-	AC_CHECK_FUNCS([CreateThread])
 	AC_CHECK_FUNCS([QueryPerformanceCounter])
 	
 	AC_CHECK_FUNCS([gettimeofday])
diff --git a/synfig-core/m4/ETL.m4 b/synfig-core/m4/ETL.m4
index b1aaa8f..06355d9 100644
--- a/synfig-core/m4/ETL.m4
+++ b/synfig-core/m4/ETL.m4
@@ -10,22 +10,11 @@ AC_DEFUN([ETL_DEPS],
 	AC_C_BIGENDIAN
 	
 	AC_CHECK_LIB(user32, main)
-	AC_CHECK_LIB([kernel32], [CreateMutex])
-	AC_CHECK_LIB([pthread], [pthread_mutex_init])
-		
-	AC_HEADER_STDC
 	
-	AC_CHECK_HEADERS(pthread.h)
-	AC_CHECK_HEADERS(sched.h)
 	AC_CHECK_HEADERS(sys/times.h)
 	AC_CHECK_HEADERS(sys/time.h)
 	AC_CHECK_HEADERS(unistd.h)
 	AC_CHECK_HEADERS(windows.h)
-	AC_CHECK_FUNCS([pthread_create])
-	AC_CHECK_FUNCS([pthread_rwlock_init])
-	AC_CHECK_FUNCS([pthread_yield])
-	AC_CHECK_FUNCS([sched_yield])
-	AC_CHECK_FUNCS([CreateThread])
 	AC_CHECK_FUNCS([__clone])
 	AC_CHECK_FUNCS([QueryPerformanceCounter])
 	
diff --git a/synfig-studio/m4/ETL.m4 b/synfig-studio/m4/ETL.m4
index b1aaa8f..e58d140 100644
--- a/synfig-studio/m4/ETL.m4
+++ b/synfig-studio/m4/ETL.m4
@@ -10,22 +10,11 @@ AC_DEFUN([ETL_DEPS],
 	AC_C_BIGENDIAN
 	
 	AC_CHECK_LIB(user32, main)
-	AC_CHECK_LIB([kernel32], [CreateMutex])
-	AC_CHECK_LIB([pthread], [pthread_mutex_init])
-		
-	AC_HEADER_STDC
-	
-	AC_CHECK_HEADERS(pthread.h)
-	AC_CHECK_HEADERS(sched.h)
+
 	AC_CHECK_HEADERS(sys/times.h)
 	AC_CHECK_HEADERS(sys/time.h)
 	AC_CHECK_HEADERS(unistd.h)
 	AC_CHECK_HEADERS(windows.h)
-	AC_CHECK_FUNCS([pthread_create])
-	AC_CHECK_FUNCS([pthread_rwlock_init])
-	AC_CHECK_FUNCS([pthread_yield])
-	AC_CHECK_FUNCS([sched_yield])
-	AC_CHECK_FUNCS([CreateThread])
 	AC_CHECK_FUNCS([__clone])
 	AC_CHECK_FUNCS([QueryPerformanceCounter])