From 3f0efc2a6fd5cd9076c78da7a32b119343d8b72e Mon Sep 17 00:00:00 2001
From: curt <curt>
Date: Thu, 23 Jan 2003 15:16:51 +0000
Subject: [PATCH] FreeBSD pthread and malloc fixes.

---
 configure.ac           | 19 +++++++++++++++++++
 simgear/xgl/xglUtils.c |  5 ++++-
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 4482cdc3..7846a9b4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -147,6 +147,25 @@ if test "x$ac_cv_lib_pthread_pthread_exit" = "xyes" -a "x$ac_cv_header_pthread_h
     CXXFLAGS="$CXXFLAGS -D_REENTRANT"
     CFLAGS="$CFLAGS -D_REENTRANT"
 fi
+if test "x$ac_cv_lib_pthread_pthread_exit" != "xyes" -a "x$ac_cv_header_pthread_h" = "xyes"; then
+    dnl FreeBSD: System has pthread.h, but -lpthread library check
+    dnl fails.  See if we need -pthread instead of -lpthread and look
+    dnl for the functions in libc_r.
+    save_CXXFLAGS="$CXXFLAGS"
+    save_CFLAGS="$FLAGS"
+    CXXFLAGS="-pthread $CXXFLAGS"
+    CFLAGS="-pthread $FLAGS"
+    save_LIBS=$LIBS
+    AC_CHECK_LIB(c_r, pthread_exit)
+    if test "x$ac_cv_lib_c_r_pthread_exit" != "xyes"; then
+	CXXFLAGS=$save_CXXFLAGS
+	CFLAGS=$save_CFLAGS
+    else
+	dnl This is cheating a bit. pthread_exit comes with using -pthread, not -lpthread
+	ac_cv_lib_pthread_pthread_exit="yes"
+    fi
+    LIBS=$save_LIBS
+fi
 AM_CONDITIONAL(HAVE_THREADS, test "x$ac_cv_lib_pthread_pthread_exit" = "xyes" -a "x$ac_cv_header_pthread_h" = "xyes")
 
 AC_CHECK_LIB(socket, socket)
diff --git a/simgear/xgl/xglUtils.c b/simgear/xgl/xglUtils.c
index 4af679dc..9fb05be1 100644
--- a/simgear/xgl/xglUtils.c
+++ b/simgear/xgl/xglUtils.c
@@ -6,7 +6,10 @@
 #if !defined( WIN32 )
 #  if !defined( HAVE_STL_SGI_PORT ) && !defined( __MWERKS__ ) && !defined( __APPLE__ )
 //   Avoid malloc with STLport and MSL
-#    include <malloc.h>
+#    ifdef HAVE_MALLOC_H
+//     Avoid malloc if system doesn't have it. :-)
+#      include <malloc.h>
+#    endif
 #  endif
 #endif
 
-- 
2.39.5