From 1cbc93fb54b773d1564bf2f2194d81c02a985a81 Mon Sep 17 00:00:00 2001
From: Yang Tse <yangsita@gmail.com>
Date: Sat, 14 Nov 2009 18:51:37 +0000
Subject: Refactor how preprocessor symbol _THREAD_SAFE definition is done.

---
 lib/config-symbian.h |  8 ++++----
 lib/config-tpf.h     |  8 ++++----
 lib/config-vxworks.h |  6 +++---
 lib/setup.h          | 11 +++++++++++
 4 files changed, 22 insertions(+), 11 deletions(-)

(limited to 'lib')

diff --git a/lib/config-symbian.h b/lib/config-symbian.h
index b26fe46cd..d3bf20924 100644
--- a/lib/config-symbian.h
+++ b/lib/config-symbian.h
@@ -640,9 +640,12 @@
 /* Define to 1 if you need the malloc.h header file even with stdlib.h */
 /* #undef NEED_MALLOC_H */
 
-/* need REENTRANT defined */
+/* Define to 1 if _REENTRANT preprocessor symbol must be defined. */
 /* #undef NEED_REENTRANT */
 
+/* Define to 1 if _THREAD_SAFE preprocessor symbol must be defined. */
+/* #undef NEED_THREAD_SAFE */
+
 /* cpu-machine-OS */
 #ifdef __WINS__
 #define OS "i386-pc-epoc32"
@@ -767,9 +770,6 @@
 /* Define for large files, on AIX-style hosts. */
 /* #undef _LARGE_FILES */
 
-/* define this if you need it to compile thread-safe code */
-/* #undef _THREAD_SAFE */
-
 /* Define to empty if `const' does not conform to ANSI C. */
 /* #undef const */
 
diff --git a/lib/config-tpf.h b/lib/config-tpf.h
index cea5d3bd9..fd995bf4c 100644
--- a/lib/config-tpf.h
+++ b/lib/config-tpf.h
@@ -559,9 +559,12 @@
 /* if you have the zlib.h header file */
 /* #undef HAVE_ZLIB_H */
 
-/* need REENTRANT defined */
+/* Define to 1 if _REENTRANT preprocessor symbol must be defined. */
 /* #undef NEED_REENTRANT */
 
+/* Define to 1 if _THREAD_SAFE preprocessor symbol must be defined. */
+/* #undef NEED_THREAD_SAFE */
+
 /* cpu-machine-OS */
 #define OS "s390x-ibm-tpf"
 
@@ -653,9 +656,6 @@
 /* Define for large files, on AIX-style hosts. */
 /* #undef _LARGE_FILES */
 
-/* define this if you need it to compile thread-safe code */
-/* #undef _THREAD_SAFE */
-
 /* Define to empty if `const' does not conform to ANSI C. */
 /* #undef const */
 
diff --git a/lib/config-vxworks.h b/lib/config-vxworks.h
index 34a8c7172..26b8074d5 100644
--- a/lib/config-vxworks.h
+++ b/lib/config-vxworks.h
@@ -745,6 +745,9 @@
 /* Define to 1 if _REENTRANT preprocessor symbol must be defined. */
 /* #undef NEED_REENTRANT */
 
+/* Define to 1 if _THREAD_SAFE preprocessor symbol must be defined. */
+/* #undef NEED_THREAD_SAFE */
+
 /* Define to 1 if the open function requires three arguments. */
 #define OPEN_NEEDS_ARG3 1
 
@@ -913,9 +916,6 @@
 /* Define for large files, on AIX-style hosts. */
 /* #undef _LARGE_FILES */
 
-/* define this if you need it to compile thread-safe code */
-/* #undef _THREAD_SAFE */
-
 /* Define to empty if `const' does not conform to ANSI C. */
 /* #undef const */
 
diff --git a/lib/setup.h b/lib/setup.h
index 5f0de9050..49d14ed09 100644
--- a/lib/setup.h
+++ b/lib/setup.h
@@ -85,6 +85,17 @@
 /* system header files in our config files, avoid this at any cost. */
 /* ================================================================ */
 
+/*
+ * AIX 4.3 and newer needs _THREAD_SAFE defined to build
+ * proper reentrant code. Others may also need it.
+ */
+
+#ifdef NEED_THREAD_SAFE
+#  ifndef _THREAD_SAFE
+#    define _THREAD_SAFE
+#  endif
+#endif
+
 /*
  * Tru64 needs _REENTRANT set for a few function prototypes and
  * things to appear in the system header files. Unixware needs it
-- 
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