From 478c05fcab6cb4137b9cbaf55fdcdb6ff74107c0 Mon Sep 17 00:00:00 2001
From: Jay Berkenbilt <ejb@ql.org>
Date: Fri, 29 Nov 2013 22:08:25 -0500
Subject: Allow -DNO_GET_ENVIRONMENT to avoid GetEnvironmentVariable

If NO_GET_ENVIRONMENT is #defined at compile time on Windows, do not
call GetEnvironmentVariable.  QUtil::get_env will always return
false.  This option is not available through configure.  This was
added to support a specific user's requirements to avoid calling
GetEnvironmentVariable from the Windows API.  Nothing in qpdf outside
the test coverage system in qtest relies on QUtil::get_env.
---
 libqpdf/QUtil.cc | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'libqpdf/QUtil.cc')

diff --git a/libqpdf/QUtil.cc b/libqpdf/QUtil.cc
index cf455061..01e0b6e7 100644
--- a/libqpdf/QUtil.cc
+++ b/libqpdf/QUtil.cc
@@ -7,6 +7,7 @@
 #include <cmath>
 #include <iomanip>
 #include <sstream>
+#include <stdexcept>
 #include <stdio.h>
 #include <errno.h>
 #include <ctype.h>
@@ -262,6 +263,9 @@ QUtil::get_env(std::string const& var, std::string* value)
 {
     // This was basically ripped out of wxWindows.
 #ifdef _WIN32
+# ifdef NO_GET_ENVIRONMENT
+    return false;
+# else
     // first get the size of the buffer
     DWORD len = ::GetEnvironmentVariable(var.c_str(), NULL, 0);
     if (len == 0)
@@ -279,6 +283,7 @@ QUtil::get_env(std::string const& var, std::string* value)
     }
 
     return true;
+# endif
 #else
     char* p = getenv(var.c_str());
     if (p == 0)
-- 
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