- move our setenv() fallback implementation to osdep

- assert that the override param is nonzero (zero is not implemented)
- correct return value type to int

based on a patch by Diego
fixes bugzilla bug #342


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@17246 b3059339-0415-0410-9bf9-f77b7e298cf2

configure

@@ -3304,6 +3304,21 @@ fi
 echores "$_glob"
 
 
+echocheck "setenv()"
+cat > $TMPC << EOF
+#include <stdlib.h>
+int main (void){ setenv("","",0); return 0; }
+EOF
+_setenv=no
+cc_check && _setenv=yes
+if test "$_setenv" = yes ; then
+  _def_setenv='#define HAVE_SETENV 1'
+else
+  _def_setenv='#undef HAVE_SETENV'
+fi
+echores "$_setenv"
+
+
 echocheck "sys/sysinfo.h"
 cat > $TMPC << EOF
 #include <sys/sysinfo.h>
@@ -7480,6 +7495,12 @@ $_def_gettimeofday
 /* Define this if your system has glob */
 $_def_glob
 
+/* Define this if your system has setenv */
+$_def_setenv
+#ifndef HAVE_SETENV
+int setenv(const char *name, const char *val, int overwrite);
+#endif
+
 /* Define this if your system has pthreads */
 $_def_pthreads
 

libao2/ao_sdl.c

@@ -122,22 +122,6 @@ static int read_buffer(unsigned char* data,int len){
 
 // end ring buffer stuff
 
-#if defined(__MINGW32__) || defined(HPUX) || defined(sgi) || (defined(sun) && defined(__svr4__))
-/* setenv is missing on win32, solaris, IRIX and HPUX */
-static void setenv(const char *name, const char *val, int _xx)
-{
-  int len  = strlen(name) + strlen(val) + 2;
-  char *env = malloc(len);
-
-  if (env != NULL) {
-    strcpy(env, name);
-    strcat(env, "=");
-    strcat(env, val);
-    putenv(env);
-  }
-}
-#endif
-
 
 // to set/get/query special features/parameters
 static int control(int cmd,void *arg){

libvo/vo_sdl.c

@@ -138,22 +138,6 @@ LIBVO_EXTERN(sdl)
 #include <SDL.h>
 //#include <SDL/SDL_syswm.h>
 
-#if defined(__MINGW32__) || defined(HPUX) || defined(sgi) || (defined(sun) && defined(__svr4__))
-/* setenv is missing on win32, solaris, IRIX and HPUX */
-static void setenv(const char *name, const char *val, int _xx)
-{
-    int len  = strlen(name) + strlen(val) + 2;
-    char *env = malloc(len);
-
-    if (env != NULL) {
-	strcpy(env, name);
-	strcat(env, "=");
-	strcat(env, val);
-	putenv(env);
-    }
-}
-#endif
-
 
 #ifdef SDL_ENABLE_LOCKS
 #define	SDL_OVR_LOCK(x)        if (SDL_LockYUVOverlay (priv->overlay)) { \

osdep/Makefile

@@ -4,7 +4,7 @@ include ../config.mak
 LIBNAME = libosdep.a
 
 SRCS= shmem.c strsep.c strl.c vsscanf.c scandir.c gettimeofday.c fseeko.c \
-      swab.c
+      swab.c setenv.c
       # timer.c
 
 getch = getch2.c

osdep/setenv.c

@@ -0,0 +1,29 @@
+/* setenv implementation for systems lacking it. */
+
+#include "../config.h"
+
+#ifndef HAVE_SETENV
+
+#include <stdlib.h>
+#include <string.h>
+#ifndef MP_DEBUG
+  #define NDEBUG
+#endif
+#include <assert.h>
+
+int setenv(const char *name, const char *val, int overwrite)
+{
+  int len  = strlen(name) + strlen(val) + 2;
+  char *env = malloc(len);
+  if (!env) { return -1; }
+
+  assert(overwrite != 0);
+
+  strcpy(env, name);
+  strcat(env, "=");
+  strcat(env, val);
+  putenv(env);
+
+  return 0;
+}
+#endif