[PATCH 5/8] Fix compat.c compilation with mingw32

Guard Windows version of setenv with HAVE_SETENV for setups
where setenv is already provided.
---
 common/compat.c | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/common/compat.c b/common/compat.c
index 35673caa..99b777f1 100644
--- a/common/compat.c
+++ b/common/compat.c
@@ -15,13 +15,10 @@
 
 #include "compat.h"
 
+#ifndef HAVE_SETENV
+
 #ifdef WIN32
 #  include <windows.h>
-#  include <sys/timeb.h>
-#  include <time.h>
-#  define ftime _ftime
-#  define timeb _timeb
-
 int setenv(const char *name, const char *value, int overwrite)
 {
 	return (int)SetEnvironmentVariable(name, value);
@@ -32,10 +29,7 @@ int unsetenv(const char *name)
 	SetEnvironmentVariable(name, NULL);
 	return 0;
 }
-
-#endif
-
-#ifndef HAVE_SETENV
+#else
 #  include <stdlib.h>
 /* Implemented according to http://www.greenend.org.uk/rjk/2008/putenv.html and Linux manpage */
 int setenv(const char *envname, const char *envvalue, int overwrite)
@@ -65,12 +59,21 @@ int unsetenv(const char *name)
 }
 #endif
 
+#endif
+
 #ifdef HAVE_SYS_TIME_H
 #  include <sys/time.h>
 #endif
 
 #ifndef	HAVE_GETTIMEOFDAY
 
+#ifdef WIN32
+#  include <sys/timeb.h>
+#  include <time.h>
+#  define ftime _ftime
+#  define timeb _timeb
+#endif
+
 int gettimeofday(struct timeval *tv, void *tz)
 {
 	struct timeb t;
@@ -88,7 +91,6 @@ int gettimeofday(struct timeval *tv, void *tz)
 #endif
 
 
-
 #ifndef HAVE_STRSEP
 
 /*
@@ -149,7 +151,7 @@ char *strsep(char **stringp, const char *delim)
 	register const char *spanp;
 	register int c, sc;
 	char *tok;
-	
+
 	if ((s = *stringp) == NULL)
 		return (NULL);
 	for (tok = s;;) {
-- 
2.20.0.rc2