From 13da6d288e94a2331f2efde2bd850202ee9286c0 Mon Sep 17 00:00:00 2001
From: Ubuntu <ubuntu@ip-172-30-5-130.ec2.internal>
Date: Mon, 4 Sep 2023 19:57:41 +0000
Subject: [PATCH] Use autoconf to check for stdbool.h Committer: Dave Cramer
 <davecramer@gmail.com>

---
 configure.ac | 14 ++++++++++++++
 psqlodbc.h   | 22 ++++++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/configure.ac b/configure.ac
index 6fd91cc..c20ffc4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -22,6 +22,19 @@ AC_CHECK_SIZEOF(void *)
 AC_CHECK_TYPES([long long])
 AC_CHECK_TYPES([signed char])
 AC_CHECK_TYPES([ssize_t])
+
+AC_CHECK_SIZEOF([bool], [],
+[#ifdef HAVE_STDBOOL_H
+#include <stdbool.h>
+#endif])
+
+dnl We use <stdbool.h> if we have it and it declares type bool as having
+dnl size 1.  Otherwise, c.h will fall back to declaring bool as unsigned char.
+if test "$ac_cv_header_stdbool_h" = yes -a "$ac_cv_sizeof_bool" = 1; then
+  AC_DEFINE([PG_USE_STDBOOL], 1,
+            [Define to 1 to use <stdbool.h> to define type bool.])
+fi
+
 AC_TYPE_SIZE_T
 
 # Check if "-Wall" is valid
@@ -240,6 +253,7 @@ AC_CHECK_LIB(pq, PQsetSingleRowMode, [],
 AC_CHECK_HEADERS(locale.h sys/time.h uchar.h)
 AC_CHECK_HEADER(libpq-fe.h,,[AC_MSG_ERROR([libpq header not found])])
 AC_HEADER_TIME
+AC_HEADER_STDBOOL
 
 
 # 4. Types(all members were moved to 0.)
diff --git a/psqlodbc.h b/psqlodbc.h
index ca8bab5..1677d0a 100644
--- a/psqlodbc.h
+++ b/psqlodbc.h
@@ -253,6 +253,28 @@ typedef double SDOUBLE;
 #endif /* CALLBACK */
 #endif /* WIN32 */
 
+#ifndef __cplusplus
+
+#ifdef PG_USE_STDBOOL
+#include <stdbool.h>
+#else
+
+#ifndef bool
+typedef unsigned char bool;
+#endif
+
+#ifndef true
+#define true	((bool) 1)
+#endif
+
+#ifndef false
+#define false	((bool) 0)
+#endif
+
+#endif							/* not PG_USE_STDBOOL */
+#endif							/* not C++ */
+
+
 #ifndef WIN32
 #define stricmp strcasecmp
 #define strnicmp strncasecmp
-- 
2.34.1