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authorFredrik Gustafsson <[email protected]>2013-11-18 10:00:46 +0100
committerFredrik Gustafsson <[email protected]>2013-11-18 10:00:46 +0100
commit04f5e4e820f792b3f07dd232f582e6a7e0a3d3f7 (patch)
tree676a2c175d7b2e6fe993344409db35137d8186e5 /erts/emulator/sys/win32
parent22b3a285aadffdb02f04230b78c167f52f7d7bc1 (diff)
parentb2e4599affa6718bba60ef3846d130513e9a740d (diff)
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Merge branch 'maint'
Conflicts: bootstrap/lib/kernel/ebin/os.beam
Diffstat (limited to 'erts/emulator/sys/win32')
-rw-r--r--erts/emulator/sys/win32/sys_env.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/erts/emulator/sys/win32/sys_env.c b/erts/emulator/sys/win32/sys_env.c
index 754f4c6e4c..9f977ad6c8 100644
--- a/erts/emulator/sys/win32/sys_env.c
+++ b/erts/emulator/sys/win32/sys_env.c
@@ -141,6 +141,24 @@ void fini_getenv_state(GETENV_STATE *state)
erts_smp_rwmtx_runlock(&environ_rwmtx);
}
+int erts_sys_unsetenv(char *key)
+{
+ int res = 0;
+ WCHAR *wkey = (WCHAR *) key;
+
+ SetLastError(0);
+ erts_smp_rwmtx_rlock(&environ_rwmtx);
+ GetEnvironmentVariableW(wkey,
+ NULL,
+ 0);
+ if (GetLastError() != ERROR_ENVVAR_NOT_FOUND) {
+ res = (SetEnvironmentVariableW(wkey,
+ NULL) ? 0 : 1);
+ }
+ erts_smp_rwmtx_runlock(&environ_rwmtx);
+ return res;
+}
+
char*
win_build_environment(char* new_env)
{