From ad1ceed1df79f6680622ffc8fc32a878dcc3a8af Mon Sep 17 00:00:00 2001
From: Hiroshi Inoue <inoue@tpf.co.jp>
Date: Thu, 7 Nov 2002 10:24:33 +0000
Subject: [PATCH] Thread safe driver is available on some platforms.

---
 README.unix  |  1 +
 configure.ac | 24 ++++++++++++++++++++++++
 win32.mak    |  8 ++++----
 3 files changed, 29 insertions(+), 4 deletions(-)

diff --git a/README.unix b/README.unix
index 5186583..8943e49 100644
--- a/README.unix
+++ b/README.unix
@@ -21,6 +21,7 @@ The configure script will accept the following useful options:
 --with-iodbc
 --with-unixodbc
 --with-odbcinst=DIR
+--enable-pthreads (thread-safe driver on some platforms)
 --help
 
 Building a distribution
diff --git a/configure.ac b/configure.ac
index 437565f..37aac8a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -7,6 +7,9 @@ AM_CONFIG_HEADER([config.h])
 AM_MAINTAINER_MODE
 
 
+AC_DEFINE(DRIVER_CURSOR_IMPLEMENT, 1,
+	[Define to 1 to build with driver cursors option)])
+
 PGAC_ARG_BOOL(with, unixodbc, no,
               [  --with-unixodbc         build ODBC driver for unixODBC],
               [AC_DEFINE(WITH_UNIXODBC, 1,
@@ -24,6 +27,27 @@ fi
 AM_CONDITIONAL(with_unixodbc, [test $with_unixodbc = yes])
 AM_CONDITIONAL(with_iodbc, [test $with_iodbc = yes])
 
+# to implement the thread-safe driver
+PGAC_ARG_BOOL(enable, pthreads, no,
+    [  --enable-pthreads         build pthread implementation if possible],
+    [AC_DEFINE(POSIX_MULTITHREAD_SUPPORT, 1,
+	[Define to 1 to build with pthreads support (--enable-pthreads)])
+     AC_DEFINE(_REENTRANT, 1,
+	[Define _REENTRANT for several plaforms])
+     AC_CHECK_LIB(c_r, gethostbyname)
+     AC_CHECK_LIB(nsl, gethostbyname_r, [],
+	[AC_CHECK_FUNCS(getipnodebyname gethostbyname_r, break)])
+     if test "$ac_cv_func_gethostbyname_r" = yes || test "$ac_cv_lib_nsl_gethostbyname_r" = yes; then
+	AC_TRY_COMPILE([#include <netdb.h>],
+	[ gethostbyname_r((char *) 0, (struct hostent *) 0, (char *) 0, 0, (int *) 0);],
+        [AC_DEFINE(PGS_REENTRANT_API_1, 1, [Define if you have 5 parameter gethostbyname_r])],
+        [AC_DEFINE(PGS_REENTRANT_API_2, 1, [Define if you have 6 parameter gethostbyname_r])])
+     fi
+     AC_CHECK_FUNCS(localtime_r strtok_r)
+     AC_CHECK_LIB(pthreads, pthread_create, [],
+       [AC_CHECK_LIB(pthread, pthread_create)])
+    ])
+
 # Allow for overriding the default location of the odbcinst.ini
 # file which is normally ${sysconfdir} (i.e., ${prefix}/etc).
 PGAC_ARG_REQ(with, odbcinst,
diff --git a/win32.mak b/win32.mak
index ac66e49..b5c7953 100644
--- a/win32.mak
+++ b/win32.mak
@@ -98,9 +98,9 @@ CLEAN :
 
 CPP=cl.exe
 !IF "$(CFG)" == "MultibyteRelease"
-CPP_PROJ=/nologo /MT /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "PSQLODBC_EXPORTS" /D "DRIVER_CURSOR_IMPLEMENT" $(ADD_DEFINES) /Fp"$(INTDIR)\psqlodbc.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /c 
+CPP_PROJ=/nologo /MT /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "PSQLODBC_EXPORTS" /D "DRIVER_CURSOR_IMPLEMENT" /D "WIN_MULTITHREAD_SUPPORT" $(ADD_DEFINES) /Fp"$(INTDIR)\psqlodbc.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /c 
 !ELSE
-CPP_PROJ=/nologo /MT /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "PSQLODBC_EXPORTS" /D "DRIVER_CURSOR_IMPLEMENT" $(ADD_DEFINES) /Fp"$(INTDIR)\psqlodbc.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /c 
+CPP_PROJ=/nologo /MT /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "PSQLODBC_EXPORTS" /D "DRIVER_CURSOR_IMPLEMENT" /D "WIN_MULTITHREAD_SUPPORT" $(ADD_DEFINES) /Fp"$(INTDIR)\psqlodbc.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /c 
 !ENDIF
 
 .c{$(INTDIR)}.obj::
@@ -237,9 +237,9 @@ CLEAN :
 
 CPP=cl.exe
 !IF "$(CFG)" == "MultibyteDebug" 
-CPP_PROJ=/nologo /MTd /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "PSQLODBC_EXPORTS" /D "DRIVER_CURSOR_IMPLEMENT" $(ADD_DEFINES) /Fp"$(INTDIR)\psqlodbc.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /GZ /c 
+CPP_PROJ=/nologo /MTd /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "PSQLODBC_EXPORTS" /D "DRIVER_CURSOR_IMPLEMENT" /D "WIN_MULTITHREAD_SUPPORT" $(ADD_DEFINES) /Fp"$(INTDIR)\psqlodbc.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /GZ /c 
 !ELSE
-CPP_PROJ=/nologo /MTd /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "PSQLODBC_EXPORTS" /D "DRIVER_CURSOR_IMPLEMENT" $(ADD_DEFINES) /Fp"$(INTDIR)\psqlodbc.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /GZ /c 
+CPP_PROJ=/nologo /MTd /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "PSQLODBC_EXPORTS" /D "DRIVER_CURSOR_IMPLEMENT" /D "WIN_MULTITHREAD_SUPPORT" $(ADD_DEFINES) /Fp"$(INTDIR)\psqlodbc.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /GZ /c 
 !ENDIF
 
 .c{$(INTDIR)}.obj::
-- 
2.39.5