+
+
+
+
+
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking if environ is properly declared" >&5
+$as_echo_n "checking if environ is properly declared... " >&6; }
+ if test "${gt_cv_var_environ_declaration+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#if HAVE_UNISTD_H
+ #include <unistd.h>
+ #endif
+ /* mingw, BeOS, Haiku declare environ in <stdlib.h>, not in <unistd.h>. */
+ #include <stdlib.h>
+
+ extern struct { int foo; } environ;
+int
+main ()
+{
+environ.foo = 1;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ gt_cv_var_environ_declaration=no
+else
+ gt_cv_var_environ_declaration=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gt_cv_var_environ_declaration" >&5
+$as_echo "$gt_cv_var_environ_declaration" >&6; }
+ if test $gt_cv_var_environ_declaration = yes; then
+
+$as_echo "#define HAVE_ENVIRON_DECL 1" >>confdefs.h
+
+ fi
+
+
+ if test $gt_cv_var_environ_declaration != yes; then
+ HAVE_DECL_ENVIRON=0
+ fi
+